FOSAPREPITANT injection, powder, lyophilized, for solution
For Healthcare Providers >

1. Patient Information
2. Warfarin:
3. Hormonal Contraceptives:
4. Distributor:
5. What Is Fosaprepitant For Injection?
6. Are Allergic To Fosaprepitant, Aprepitant, Or Any Of The Ingredients In Fosaprepitant For Injection. Adults 18 Years Of Age And Older:
7. What Are The Possible Side Effects Of Fosaprepitant For I Njection?
8. S Side Effects, Including:
9. In Adults, The Most Common Side Effects Of Fosaprepitant For Injection Include:
10. What Are The Ingredients In Fosaprepitant For I Njection?
11. Edison, Nj 08837issued On:
12. What Is Fosaprepitant For Injection?
13. Before Receiving Fosaprepitant For Injection, Tell Your Healthcare Provider If You:
14. Fosaprepitant For Injection?
15. Fosaprepitant For Injection May Cause Serious Side Effects, Including:
16. General Information About The Safe And Effective Use Of Fosaprepitant For Injection?
17. What Are The Ingredients In Fosaprepitant For Injection?
18. Do Not Receive Fosaprepitant For Injection If You:
19. Adults 18 Years Of Age And Older:
20. Fosaprepitant For Injection May Cause Serious Side Effects, Including:
21. In Adults, The Most Common Side Effects Of Fosaprepitant For Injection Include:
22. Active Ingredient:
23. Inactive Ingredients:
24. Manufactured For:
25. Manufactured By:

Patient Information ⮝

Advise the patient to read the FDAapproved patientlabeling (Patient Information).

Hypersensitivity

Advise patientsthat hypersensitivity reactions, including anaphylaxis and anaphylactic shock, have been reported in patients taking fosaprepitant. Advisepatients to seek immediate medical attention if they experience signs or symptoms of a hypersensitivity reaction, such as hives, rash and itching, skin peeling or sores, flushing, difficulty in breathingor swallowing, or dizziness, rapid or weak heartbeat or feeling faint [see warnings and precautions (5.2)].

Infusion Site Reactions

Advise patients to seek medical attention if they experience new or worsening signs or symptoms of an infusion site reaction, such as erythema, edema, pain, necrosis, vasculitis, or thrombophlebitis at or near the infusion site [see Warnings and Precautions (5.3)].

Drug Interactions

Advise patients to discuss all medications they are taking, including other prescription, non prescription medication or herbal products[see Contraindications(4), Warnings and Precautions (5.1)].

Warfarin: ⮝

Instruct patientson chronic warfarintherapy to follow instructions from their healthcare provider regarding blood draws to monitor their INR during the 2-week period, particularly at 7 to 10 days, followinginitiation of fosaprepitant with each chemotherapy cycle [see Warningsand Precautions (5.4)].

Hormonal Contraceptives: ⮝

Advise patients that administration of fosaprepitant may reduce the efficacy of hormonal contraceptives. Instruct patients to use effectivealternative or back-upmethods of contraception (such as condomsand spermicides) during treatment with fosaprepitant and for 1 month following administration of fosaprepitant [see Warnings and Precautions (5.5),Use in Specific Populations (8.3)].

Distributor: ⮝

Dr. Reddy s Laboratories Inc.,

Princeton, NJ 08540

Made in India

Issued: 0319

What Is Fosaprepitant For Injection? ⮝

Fosaprepitant for injection is a prescription medicine used with other medicines that treat nausea and vomiting in patients 18 years of age and older to prevent nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines.

• Fosaprepitant for injection is not used to treat nausea and vomiting that you already have.
• It is not known if fosaprepitant for injection is safe and effective in children less than 6 months of age.

Are Allergic To Fosaprepitant, Aprepitant, Or Any Of The Ingredients In Fosaprepitant For Injection. Adults 18 Years Of Age And Older: ⮝

Fosaprepitant for injection will be given on Day 1 of chemotherapy treatment. It will be given to you by intravenous (IV) infusion in your vein about 50 to 60 minutes before you start your chemotherapy treatment.
If you take the blood thinner medicine warfarin sodium (COUMADIN , JANTOVEN ), your healthcare provider may do blood tests after you receive fosaprepitant for injection to check your blood clotting.

What Are The Possible Side Effects Of Fosaprepitant For I Njection? ⮝

Fosaprepitant for i njection may cause seriou

S Side Effects, Including: ⮝

• serious allergic reactions.Allergic reactions can happen with fosaprepitant for injection and may be serious. Tell your doctor or nurse right away if you have hives, rash, itching, flushing or redness of your face or skin, trouble breathing or swallowing, dizziness,a rapid or weak heartbeat, or you feel faint during or soon after you receive fosaprepitant for injection, as you may need emergency medical care.
• Severe skin reactions, which may include rash, skin peeling, or sores, may occurs,
• Infusion site reactions (ISR) at or near the infusion site have happened with fosaprepitant for injection.
  Most severe ISR have happened with a certain type of chemotherapy medicine that can burn or blister your skin (vesicant) with side effects, including pain, swelling and redness. Death of skin tissue (necrosis) has happened in some people getting this type of chemotherapy medicine. Most ISR can happen with the first, second, or third dose and some can last up to 2 weeks or longer. Tell your healthcare provider right away if you get any infusion site side effects.

In Adults, The Most Common Side Effects Of Fosaprepitant For Injection Include: ⮝

• tiredness
• feeling weak or numb in your arms and legs
• diarrhea
• painful, difficult, or changes in your digestion (dyspepsia)
• low white blood cell and red blood cell counts
• urinary tract infection
• weakness
• pain in your arms and legs

Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all of the possible side effects of fosaprepitant for injection. For more information ask your healthcare provider or pharmacist.
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

General information about the safe and effective use of fosaprepitant for injection.
If you would like more information about fosaprepitant for injection, talk with your healthcare provider.You can ask your healthcare provider or pharmacist for information about fosaprepitant for injection that is written for health professionals. For more information about fosaprepitant for injection call 1-848-200-1906 or go to www.msnlabs.com

What Are The Ingredients In Fosaprepitant For I Njection? ⮝

Active ingredient: fosaprepitant dimeglumine
Inactive ingredients: edetate disodium, lactose anhydrous, polysorbate 80,sodium hydroxide and/ or hydrochloric acid (for pH adjustment).
The brands listed are trademarks or registered trademarks of their respective owners and are not affiliated with and do not endorse MSN Pharmaceuticals Inc.
Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

This Patient Information has been approved by the U.S. Food and Drug Administration.

Manufactured by:
MSN Laboratories Private Limited
Telangana 509 216
INDIA
Distributed by:
MSN Pharmaceuticals Inc.

Edison, Nj 08837issued On: ⮝

January 2019

What Is Fosaprepitant For Injection? ⮝

Fosaprepitant for injection is a prescription medicine used with other medicines that treat nausea and vomiting in patients 18 years of age and older to prevent nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines.

Fosaprepitant for injection is not used to treat nausea and vomiting that you already have.

It is not known if fosaprepitant for injection is safe and effective in children less than 6 months of age.

Before Receiving Fosaprepitant For Injection, Tell Your Healthcare Provider If You: ⮝

have liver problems

are pregnant or plan to become pregnant. It is not known if fosaprepitant for injection can harm your unborn baby.

Women who use birth control medicines containing hormones to prevent pregnancy (birth control pills, skin patches, implants, and certain IUDs) should also use a backup method of birth control that does not contain hormones, such as condoms and spermicides, during treatment with fosaprepitant for injection and for 1 month after receiving fosaprepitant for injection.

are breastfeeding or plan to breastfeed. It is not known if fosaprepitant for injection passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you receive fosaprepitant for injection.

Tellyourhealthcare provideraboutallthe medicinesyou take, including prescription and over-the-counter medicines, vitamins, and herbal supplements.Fosaprepitant for injection may affect the way other medicines work, and other medicines may affect the way fosaprepitant for injection works, causing serious side effects.Know the medicines you take. Keep a list of them to show your healthcare provider or pharmacist when you get a new medicine.

How will I receive

Fosaprepitant For Injection? ⮝

Adults 18 years of age and older:Fosaprepitant for injection will be given on Day 1 of chemotherapy treatment. It will be given to you by intravenous (IV) infusion in your vein about 50 to 60 minutes before you start your chemotherapy treatment.If you take the blood thinner medicine warfarin sodium (COUMADIN, JANTOVEN), your healthcare provider may do blood tests after you receive fosaprepitant for injection to check your blood clotting.

Fosaprepitant For Injection May Cause Serious Side Effects, Including: ⮝

Serious allergic reactions.Allergic reactions can happen with fosaprepitant for injection and may be serious. Tell your doctor or nurse right away if you have hives, rash, itching, flushing or redness of your face or skin, trouble breathing or swallowing, dizziness, a rapid or weak heartbeat, or you feel faint during or soon after you receive fosaprepitant for injection, as you may need emergency medical care.

Severe skin reactions, which may include rash, skin peeling, or sores, may occur.

Infusion site reactions (ISR) at or near the infusion site have happened with fosaprepitant for injection.

Most severe ISR have happened with a certain type of chemotherapy medicine that can burn or blister your skin (vesicant) with side effects, including pain, swelling and redness. Death of skin tissue (necrosis) has happened in some people getting this type of chemotherapy medicine. Most ISR can happen with the first, second, or third dose and some can last up to 2 weeks or longer. Tell your healthcare provider right away if you get any infusion site side effects.

General Information About The Safe And Effective Use Of Fosaprepitant For Injection? ⮝

If you would like more information about fosaprepitant for injection, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about fosaprepitant for injection that is written for health professionals. For more information about fosaprepitant for injection call 1-848-200-1906 or go to www.msnlabs.com.

What Are The Ingredients In Fosaprepitant For Injection? ⮝

Active ingredient: fosaprepitant dimeglumine

Inactive ingredients: edetate disodium, lactose anhydrous, polysorbate 80, sodium hydroxide and/ or hydrochloric acid (for pH adjustment).The brands listed are trademarks or registered trademarks of their respective owners and are not affiliated with and do not endorse MSN Pharmaceuticals Inc.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co.,Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information

.This Patient Information has been approved by the U.S. Food and Drug Administration.

Distributor:Dr. Reddy s Laboratories Inc.,

Princeton, NJ 08540

Made in India

Issued: 0319

Do Not Receive Fosaprepitant For Injection If You: ⮝

are allergic to fosaprepitant, aprepitant, or any of the ingredients in fosaprepitant for injection.

Adults 18 Years Of Age And Older: ⮝

Fosaprepitant for injection will be given on Day 1 of chemotherapy treatment. It will be given to you by intravenous (IV) infusion in your vein about 50 to 60 minutes before you start your chemotherapy treatment.

or

1. Fosaprepitant for injection 115 mg given along with capsules of aprepitant.

o

Day 1 (Day of chemotherapy): Fosaprepitant for injection 115 mg will be given to you by intravenous (IV) infusion in your vein about 30 minutes before you start your chemotherapy treatment.

o

You will get a prescription for two capsules of aprepitant

o

Day 2 and Day 3 (the two days after chemotherapy): Take one 80 mg capsule of aprepitant (white) by mouth, each morning for the 2 days after your chemotherapy treatment.

If you take the blood thinner medicine warfarin sodium (COUMADIN, JANTOVEN), your healthcare provider may do blood tests after you receive fosaprepitant for injection to check your blood clotting.

Fosaprepitant For Injection May Cause Serious Side Effects, Including: ⮝

Serious allergic reactions.Allergic reactions can happen with fosaprepitant for injection and may be serious. Tell your doctor or nurse right away if you have hives, rash, itching, flushing or redness of your face or skin, trouble breathing or swallowing, dizziness, a rapid or weak heartbeat, or you feel faint during or soon after you receive fosaprepitant for injection, as you may need emergency medical care.

Severe skin reactions, which may include rash, skin peeling, or sores, may occur.

Infusion site reactions (ISR) at or near the infusion site have happened with fosaprepitant for injection.

Most severe ISR have happened with a certain type of chemotherapy medicine that can burn or blister your skin (vesicant) with side effects, including pain, swelling and redness. Death of skin tissue (necrosis) has happened in some people getting this type of chemotherapy medicine. Most ISR can happen with the first, second, or third dose and some can last up to 2 weeks or longer. Tell your healthcare provider right away if you get any infusion site side effects.

In Adults, The Most Common Side Effects Of Fosaprepitant For Injection Include: ⮝

tiredness

diarrhea

low white blood cell and red blood cell counts

weakness

feeling weak or numb in your arms and legs

painful, difficult, or changes in your digestion (dyspepsia)

urinary tract infection

pain in your arms and legs

Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all of the possible side effects of fosaprepitant for injection. For more information ask your healthcare provider or pharmacist.

Call your doctor for medical advice about side effects. You may report side effects to Mylan at 1-877-446-3679 (1-877-4-INFO-RX) or to FDA at 1-800-FDA-1088.

General information about the safe and effective use of fosaprepitant for injection.

If you would like more information about fosaprepitant for injection, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about fosaprepitant for injection that is written for health professionals.For more information about fosaprepitant for injection call 1-877-446-3679 (1-877-4-INFO-RX) or to FDA at 1-800-FDA-1088.

Active Ingredient: ⮝

fosaprepitant dimeglumine

Inactive Ingredients: ⮝

edetate disodium, polysorbate 80, lactose anhydrous, sodium hydroxide and/or hydrochloric acid (for pH adjustment)

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

The brands listed are the registered trademarks of their respective owners.

This Patient Information has been approved by the U.S. Food and Drug Administration.

Manufactured For: ⮝

Mylan Institutional LLC

Rockford, IL 61103 U.S.A.

Manufactured By: ⮝

Mylan Laboratories Limited

Bangalore, India

FEBRUARY 2019

1. No Title 1572550662
2. No Title 1572554570
3. 1 Indications And Usage
4. 2 Dosage And Administration
5. 3 Dosage Forms And Strengths
6. 8 Use In Specific Populations
7. 11 Description
8. 13 Nonclinical Toxicology
9. 14 Clinical Studies
10. 16 How Supplied/storage And Handling
11. Package Label Principal Display Panel Section - Vial
12. Package Label Principal Display Panel Section - Carton
13. 2 Dosage And Administration
14. Package Label.principal Display Panel
15. Package Label Principal Display Panel Section
16. No Title 1572451532
17. 1 Indications & Usage
18. 2 Dosage & Administration
19. 3 Dosage Forms & Strengths
20. No Title 1572452384
21. Principal Display Panel
22. 5 Warnings And Precautions
23. 6 Adverse Reactions
24. 7 Drug Interactions
25. 10 Overdosage
26. 12 Clinical Pharmacology
27. 3 Dosage Forms And Strengths
28. 4 Contraindications
29. Highlights Of Prescribing Information
30. Recent Major Changes
31. Indications And Usage
32. Dosage And Administration
33. Dosage Forms And Strengths
34. Contraindications
35. Warnings And Precautions
36. Adverse Reactions
37. Drug Interactions
38. 1 Indications And Usage
39. 2 Dosage And Administration
40. 3 Dosage Forms And Strengths
41. 4 Contraindications
42. 5 Warnings And Precautions
43. 6 Adverse Reactions
44. 7 Drug Interactions
45. 8 Use In Specific Populations
46. 10 Overdosage
47. 11 Description
48. 12 Clinical Pharmacology
49. 13 Nonclinical Toxicology
50. 14 Clinical Studies
51. 16 How Supplied/storage And Handling
52. Package/label Display Panel
53. Package/label Principal Display Panel

No Title 1572550662 ⮝

Patient Information FOSAPREPITANT for injection (FOS a PRE pi tant) for intravenous use
What is Fosaprepitant for Injection? Fosaprepitant for Injection is a prescription medicine used with other medicines that treat nausea and vomiting in adults to prevent nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines. Fosaprepitant for Injection is not used to treat nausea and vomiting that you already have. It is not known if Fosaprepitant for Injection is safe and effective in children.
Do not receive Fosaprepitant for Injection if you: are allergic to fosaprepitant, aprepitant, or any of the ingredients in Fosaprepitant for Injection. See the end of this leaflet for a complete list of the ingredients in Fosaprepitant for Injection. are taking pimozide (ORAP).
Before receiving Fosaprepitant for Injection, tell your healthcare provider about all your medical conditions including, if you: have liver problems. are pregnant or plan to become pregnant. It is not known if Fosaprepitant for Injection can harm your unborn baby. Women who use birth control medicines containing hormones to prevent pregnancy (birth control pills, skin patches, implants, and certain IUDs) should also use a backup method of birth control that does not contain hormones, such as condoms or spermicides, during treatment with Fosaprepitant for Injection and for 1 month after receiving the last dose of Fosaprepitant for Injection. are breastfeeding or plan to breastfeed. It is not known if Fosaprepitant for Injection passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you receive Fosaprepitant for Injection. Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Fosaprepitant for Injection may affect the way other medicines work, and other medicines may affect the way Fosaprepitant for Injection works , causing serious side effects. Know the medicines you take. Keep a list of them to show your healthcare provider or pharmacist when you get a new medicine.
How will I receive Fosaprepitant for Injection? Fosaprepitant for Injection will be given on Day 1 of chemotherapy treatment. It will be given to you by intravenous (IV) infusion in your vein about 50 to 60 minutes before you start your chemotherapy treatment. If you take the blood thinner medicine warfarin sodium (COUMADIN, JANTOVEN), your healthcare provider may do blood tests after you receive Fosaprepitant for Injection to check your blood clotting.
What are the possible side effects of Fosaprepitant for Injection? Fosaprepitant for Injection may cause serious side effects, including: Serious allergic reactions. Allergic reactions can happen with Fosaprepitant for Injection and may be serious. Tell your healthcare provider or nurse right away if you have hives, rash, itching, flushing or redness of your face or skin, trouble breathing or swallowing, dizziness, a rapid or weak heartbeat, or you feel faint during or soon after you receive Fosaprepitant for Injection, as you may need emergency medical care. Severe skin reactions, which may include rash, skin peeling, or sores, may occur. Get medical care right away if you have signs of a severe skin reaction. Infusion site reactions (ISR) at or near the infusion site have happened with Fosaprepitant for Injection. Most severe ISR have happened with a certain type of chemotherapy medicine that can burn or blister your skin (vesicant) with side effects, including pain, swelling and redness. Death of skin tissue (necrosis) has happened in some people getting this type of chemotherapy medicine. Most ISR can happen with the first, second, or third dose and some can last up to 2 weeks or longer. Tell your healthcare provider right away if you get any infusion site side effects. The most common side effects of Fosaprepitant for Injection include:
tiredness	feeling weak or numb in your arms and legs
diarrhea	indigestion or heartburn
low white blood cell and red blood cell counts	urinary tract infection
weakness	pain in your arms and legs
Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all of the possible side effects of Fosaprepitant for Injection. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
General information about the safe and effective use of Fosaprepitant for Injection. If you would like more information about Fosaprepitant for Injection, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about Fosaprepitant for Injection that is written for health professionals. For more information about Fosaprepitant for Injection call Teva Pharmaceuticals USA, Inc. at 1-888-838-2872.
What are the ingredients in Fosaprepitant for Injection? Active ingredient: fosaprepitant dimeglumine Inactive ingredients: edetate disodium, meglumine, povidone k12, and water for injection. Hydrochloric acid and/or meglumine may have been added for pH adjustment. Brands listed are trademarks of their respective owners. Manufactured by: Actavis Italy, S.p.A., Via Pasteur 10, Nerviano, Italy 20014 or Sindan Pharma SRL, 11th Ion Mihalache Blvd., Bucharest 1, Romania 011171 Manufactured for: Teva Pharmaceuticals USA, Inc. North Wales, PA 19454

This Patient Information has been approved by the U.S. Food and Drug Administration. Iss. 9/2019

No Title 1572554570 ⮝

Carton label: Unvarnished Area Consists of: 2D Barcode, Lot Number, Expiry Date and Serial Number

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:43598-859 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength Fosaprepitant Dimeglumine (UNII: D35FM8T64X) (Aprepitant - UNII:1NF15YR6UY) Fosaprepitant 150 mg in 5 mL

Inactive Ingredients Ingredient Name Strength Edetate Sodium (UNII: MP1J8420LU) 18.8 mg in 5 mL Anhydrous Lactose (UNII: 3SY5LH9PMK) 375 mg in 5 mL Polysorbate 80 (UNII: 6OZP39ZG8H) 75 mg in 5 mL Sodium Hydroxide (UNII: 55X04QC32I) Hydrochloric Acid (UNII: QTT17582CB)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:43598-859-11 1 in 1 CARTON 09/06/2019 1 1 mL in 1 VIAL; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA209965 09/06/2019

Labeler - Dr. Reddy's Laboratories Inc., (802315887)

Establishment
Name	Address	ID/FEI	Business Operations
MSN LABORATORIES PRIVATE LIMITED		650786952	manufacture(43598-859) , analysis(43598-859)

Revised: 9/2019 Document Id: 758fbfce-39fd-5a8e-e85f-c6656e03c242 34391-3 Set id: f34c931c-78b9-90c1-3fa5-bb34a227f2ad Version: 2 Effective Time: 20190906 Dr. Reddy's Laboratories Inc.,

1 Indications And Usage ⮝

Fosaprepitant for injection, in combination with other antiemetic agents, is indicated in adults for the prevention of:

• acute and delayed nauseaand vomiting associated with initial and repeat coursesof highly emetogenic cancer chemotherapy (HEC) including high-dose cisplatin.
• delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC).
  Limitations of Use
• Fosaprepitant for injection has not been studied for the treatment of established nausea and vomiting.
  Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2 Dosage And Administration ⮝

2.1 Prevention of Nausea and Vomiting Associated with HEC and MEC in Adult Patients

The recommended dosage of fosaprepitant for injection, dexamethasone, and a 5-HT3antagonist for the prevention of nausea and vomiting associated with administration of HEC or MEC in adults is shown in Table 1 or Table 2, respectively. Administer fosaprepitant for injectionas an intravenous infusion on Day 1 over 20 to 30 minutes, completing the infusion approximately 30 minutes priorto chemotherapy.

Table 1Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with HEC

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant for injection	150 mgintravenouslyover 20 to 30 minutesapproximately 30 minutes prior to chemotherapy	none	none	none
Dexamethasone*	12 mg orally	8 mg orally	8 mg orally twice daily	8 mg orally twice daily
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage	none	none	none

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Also administer dexamethasone in the evenings on Days 3 and 4. A 50% dosage reduction of dexamethasone on Days 1 and 2 is recommended to account for a drug interaction with fosaprepitant for injection [see ClinicalPharmacology (12.3)].

Table 2 Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with MEC

	Day 1
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy
Dexamethasone*	12 mg orally
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1. A 50% dosage reduction of dexamethasone is recommended to account for a drug interaction with fosaprepitant dimeglumine [see Clinical Pharmacology (12.3)].

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2.3 Preparation of Fosaprepitant for Injection

Table 5 Preparation Instructions for Fosaprepitant for Injection (150 mg)

Step 1		Aseptically inject 5 mL 0.9% Sodium Chloride Injection, USP into the vial. Assure that 0.9% Sodium Chloride Injection, USP is added to the vial along the vial wall in order to prevent foaming. Swirl the vial gently. Avoid shaking and jetting 0.9% Sodium Chloride Injection, USP into the vial.
Step 2		Aseptically prepare an infusion bag filled with 145 mL of 0.9% Sodium Chloride Injection, USP.
Step 3		Aseptically withdraw the entire volume from the vial and transfer it into the infusion bag containing 145 mL of 0.9% Sodium Chloride Injection, USP to yield a total volume of 150 mL and a final concentration of 1 mg/mL.
Step 4		Gently invert the bag 2 to 3 times.
Step 5		AdultsThe entire volume of the prepared infusion bag (150 mL) should be administered.
Step 6		Before administration, inspect the bag for particulate matter and discoloration. Discard the bag if particulate and/or discoloration are observed.

Caution: Do not mix or reconstitute fosaprepitant for injection with solutions for which physicaland chemical compatibility have not been established. Fosaprepitant for injection is incompatible with any solutions containing divalent cations (e.g., Ca2+, Mg2+), including Lactated Ringer s Solution and Hartmann's Solution.Storage

The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

3 Dosage Forms And Strengths ⮝

Fosaprepitant for injection: 150 mg fosaprepitant, white to off white cake or powder in single-dose glass vial for reconstitution.

8 Use In Specific Populations ⮝

8.1 Pregnancy

Risk Summary

There are insufficient data on use of fosaprepitant in pregnant women to inform a drug associated risk. In animal reproduction studies, no adverse developmental effects were observed in rats or rabbits exposed during the period of organogenesis to systemic drug levels (AUC) approximately equivalent to the exposure at the recommended human dose (RHD) of 150 mg [seeData].

The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated background risk of majorbirth defects and miscarriage in clinically recognized pregnancies is 2 to 4% and 15 to 20%, respectively.

Data

Animal Data

In embryofetal development studies in rats and rabbits, aprepitant was administered during the period of organogenesis at oral dosesup to 1,000 mg/kg twicedaily (rats) and up to the maximum tolerated dose of 25 mg/kg/day (rabbits). No embryofetal lethality or malformations were observed at any dose level in eitherspecies. The exposures(AUC) in pregnantrats at 1,000 mg/kg twice daily and in pregnant rabbits at 25 mg/kg/day were approximately equivalent to the exposure at the RHD of 150 mg. Aprepitant crosses the placenta in rats and rabbits.

8.2 Lactation

Risk Summary

Lactation studies have not been conducted to assess the presence of aprepitant in human milk, the effects on the breastfed infant,or the effects on milk production. Aprepitant is present in rat milk. The developmental and health benefits of breastfeeding should be considered along with the mother s clinical need for fosaprepitant and any potential adverse effects on the breastfed infant from fosaprepitant or from the underlying maternal condition.

8.3 Females and Males of Reproductive Potential

Contraception

Upon administration of fosaprepitant, the efficacy of hormonal contraceptives may be reduced. Advise females of reproductive potential using hormonal contraceptives to use an effective alternative or back-up non-hormonal contraceptive (such as condoms and spermicides) during treatment with fosaprepitant and for 1 month following the last dose [see Drug Interactions (7.1),Clinical Pharmacology (12.3)].

8.4 Pediatric Use

The safety and effectiveness of fosaprepitant dimeglumine for the prevention of nausea and vomiting associated with HEC or MEC have not been established in patients less than 6 months of age.

Juvenile Animal Toxicity Data

In juvenile dogs treated with fosaprepitant, changes in reproductive organs were observed. In juvenile rats treated with aprepitant, slight changes in sexual maturation were observed without an effect on reproduction. No effects on neurobehavior, sensory and motor function, or learning and memory were observed in rats.

In a toxicity study in juvenile dogs treated with fosaprepitant from postnatal day 14 (equivalent to a newborn human) to day 42 (approximately equivalent to a 2 year old human), decreased testicular weight and Leydig cell size were seen in the males at 6 mg/kg/day and increased uterine weight, hypertrophy of the uterus and cervix, and edema of vaginal tissues were seen in females from 4 mg/kg/day. A study was also conducted in young rats to evaluate the effects of aprepitant on growth and on neurobehavioral and sexual development. Rats were treated at oral doses up to the maximum feasible dose of 1000 mg/kg twice daily from the early postnatal period (Postnatal Day 10 (equivalent to a newborn human) through Postnatal Day 58 (approximately equivalent to a 15 year old human)). Slight changes in the onset of sexual maturation were observed in female and male rats; however, there were no effects on mating, fertility, embryonic-fetal survival, or histomorphology of the reproductive organs. There were no effects in neurobehavioral tests of sensory function, motor function, and learning and memory.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

8.5 Geriatric Use

Of the 1649 adult cancer patients treated with intravenous fosaprepitant in HEC and MEC clinical studies, 27% were aged 65 and over, while 5% were aged 75 and over. Other reported clinical experience with fosaprepitant has not identified differences in responses between elderly and younger patients. In general, use caution when dosing elderly patients as they have a greater frequency of decreased hepatic, renal or cardiac function and concomitant disease or other drug therapy [see Clinical Pharmacology (12.3)].

8.6 Patients with Hepatic Impairment

The pharmacokinetics of aprepitant in patients with mild and moderate hepatic impairment were similar to those of healthy subjects with normal hepatic function.No dosage adjustment is necessary for patients with mild to moderatehepatic impairment (Child-Pugh score 5 to 9). Thereare no clinical or pharmacokinetic data in patientswith severe hepaticimpairment (Child-Pugh score greater than 9). Therefore, additional monitoring for adverse reactions in these patients may be warranted when fosaprepitant is administered [see Clinical Pharmacology (12.3)].

11 Description ⮝

Fosaprepitant for injection is a sterile, lyophilized formulation containing fosaprepitant dimeglumine,a prodrug of aprepitant a substance P/neurokinin-1 (NK1) receptor antagonist, an antiemetic agent, chemically described as 1 Deoxy-1-(methylamino)-D-glucito[3-[[(2R,3S)-2-[(1R)-1-[3,5- bis(trifluoromethyl)phenyl]ethoxy]-3-(4 fluorophenyl)-4-morpholinyl]methyl]-2,5-dihydro-5-oxo-1H-1,2,4-triazol-1-yl]phosphonate(2:1) (salt).Its empirical formula is C23 H22 F7 N4 O6 P 2(C7 H17 NO5) and its structural formula is:

Fosaprepitant dimeglumine is a white to off-white powder with a molecular weight of 1004.83. It is freely soluble in water soluble in N,N-Dimethylsulfoxide and insoluble in n-hexane.Each vial of fosaprepitant for injection for administration as an intravenous infusion contains 245.3 mg of fosaprepitant dimeglumine equivalent to 150 mg of fosaprepitant free acid and the following inactive ingredients: edetatedisodium (18.8 mg), lactose anhydrous(375 mg), polysorbate 80 (75 mg), sodium hydroxide and/orhydrochloric acid (for pH adjustment).

13 Nonclinical Toxicology ⮝

13.1 Carcinogenesis, Mutagenesis, Impairment Of Fertility

Carcinogenesis

Carcinogenicity studieswere conducted in Sprague-Dawley rats and in CD-1 mice for 2 years. In the rat carcinogenicity studies, animals were treated with oral doses ranging from 0.05 to 1,000 mg/kg twice daily. The highest dose produced systemic exposuresto aprepitant approximately equivalent to (female rats) or less than (male rats) the adult human exposure at the RHD of 150 mg. Treatment with aprepitant at doses of 5 to 1,000 mg/kg twicedaily caused an increase in the incidences of thyroid follicular cell adenomas and carcinomas in male rats. In female rats, it produced hepatocellular adenomas at 5 to 1,000 mg/kg twicedaily and hepatocellular carcinomas and thyroidfollicular cell adenomasat 125 to 1000mg/kg twice daily. In the mouse carcinogenicity studies,the animals were treated with oral doses ranging from 2.5 to 2,000 mg/kg/day. The highest dose produced a systemic exposureapproximately 2 times the adult human exposure at the RHD of 150 mg. Treatment with aprepitant produced skin fibrosarcomas at 125 and 500 mg/kg/day doses in male mice. Carcinogenicity studies were not conducted with fosaprepitant.

Mutagenesis

Aprepitant and fosaprepitant were not genotoxicin the Ames test, the human lymphoblastoid cell (TK6) mutagenesis test, the rat hepatocyte DNA strand break test, the Chinese hamster ovary (CHO) cell chromosome aberration test and the mouse micronucleustest.

Impairment of Fertility

Fosaprepitant, when administered intravenously, is rapidly convertedto aprepitant. In the fertilitystudies conducted with fosaprepitant and aprepitant, the highest systemic exposures to aprepitant were obtained following oral administration of aprepitant. Oral aprepitant did not affectthe fertility or general reproductive performance of male or female rats at doses up to the maximum feasible dose of 1,000 mg/kg twice daily (providingexposure in male rats lower than the exposure at the recommended adult human dose of 150 mg and exposurein female rats approximately equivalent to the adult human exposure).

14 Clinical Studies ⮝

14.1 Prevention of Nausea and Vomiting Associated with HEC in Adults

In a randomized, parallel,double-blind, active-controlled study, fosaprepitant for injection 150 mg as a single intravenous infusion(N=1147) was comparedto a 3-day oral aprepitant regimen (N=1175) in patientsreceiving a HEC regimen that included cisplatin ( 70 mg/m2). All patients in both groups received dexamethasone and ondansetron (see Table 11). Patient demographics were similar betweenthe two treatment groups. Of the total 2322 patients, 63% were men, 56% White,26% Asian, 3% American Indian/Alaska Native,2% Black, 13% Multi-Racial, and 33% Hispanic/Latino ethnicity. Patient ages ranged from 19 to 86 years of age, with a mean age of 56 years.Other concomitant chemotherapy agents commonly administered were fluorouracil (17%),gemcitabine (16%), paclitaxel (15%), and etoposide (12%).

Table 11: Treatment Regimens in Adult HEC Trial*

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant Regimen
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes priorto chemotherapy	none	none	none
Oral dexamethasone	12 mg	8 mg	8 mg twice daily	8 mg twice daily
Ondansetron	Ondansetron	none	none	none
Oral Aprepitant Regimen
Aprepitant capsules	125 mg	80 mg	80 mg	none
Oral dexamethasone	12 mg	8 mg	8 mg	8 mg
Ondansetron	Ondansetron	none	none	none

* fosaprepitant for injection placebo, aprepitant capsules placebo and dexamethasone placebo (in the evenings on Days 3 and 4) were used to maintain blinding.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Dexamethasone was also administered in the evenings on Days 3 and 4. The 12 mg dose of dexamethasone on Day 1 and the 8 mg once daily dose on Day 2 reflects a dosage adjustment to account for a drug interaction with the fosaprepitant for injection regimen [see Clinical Pharmacology (12.3)].

Ondansetron 32 mg intravenous was used in the clinical trials of fosaprepitant. Although this dose was used in clinical trials, this is no longer the currently recommended dose. Refer to the ondansetron prescribing information for the current recommended dose.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. The 12 mg dose of dexamethasone on Day 1 and the 8 mg once daily dose on Days 2 through 4 reflects a dosage adjustment to account for a drug interaction with the oral aprepitant regimen [see Clinical Pharmacology(12.3)].

The efficacy of fosaprepitant for injection was evaluated based on the primary and secondary endpoints listed in Table 12 and was shown to be non-inferior to that of the 3-day oral aprepitant regimen with regard to complete response in each of the evaluated phases. The pre-specified non-inferiority margin for complete response in the overall phase was 7%. The pre-specified non-inferiority margin for complete response in the delayedphase was 7.3%. Thepre-specified non-inferiority margin for no vomiting in the overall phase was 8.2%.

Table 12Percent of Adult Patients Receiving HEC Responding by Treatment Group and Phase Cycle 1

ENDPOINTS	Fosaprepitant for Injection Regimen(N = 1106) *%	Oral Aprepitant Regimen(N = 1134) *%	Difference (95% CI)
PRIMARY ENDPOINT
Complete Response
Overall	71.9	72.3	-0.4 (-4.1, 3.3)
SECONDARYENDPOINTS
Complete Response
Delayedphase	74.3	74.2	0.1 (-3.5, 3.7)
No Vomiting
Overall	72.9	74.6	-1.7 (-5.3, 2.0)

*N: Number of patients included in the primary analysis of completeresponse.

Difference and Confidence interval (CI) were calculated using the method proposed by Miettinen and Nurminen and adjusted for Gender.

Complete Response = no vomiting and no use of rescue therapy.

Overall = 0 to 120 hours post-initiation of cisplatin chemotherapy.

Delayed phase = 25 to 120 hours post-initiation of cisplatin chemotherapy.

14.2 Prevention of Nausea and Vomiting Associated with MEC in Adults

In a randomized, parallel, double-blind, active comparator-controlled study, fosaprepitant for injection 150 mg as a single intravenous infusion (N=502) in combination with ondansetron and dexamethasone (fosaprepitant dimeglumine regimen) was compared with ondansetron and dexamethasone alone (standard therapy) (N=498) (see Table 13) in patients receiving a MEC regimen. Patient demographics were similar between the two treatment groups. Of the total 1,000 patients included in the efficacy analysis, 41% were men, 84% White, 4% Asian, 1% American Indian/Alaska Native, 2% Black, 10% Multi-Racial, and 19% Hispanic/Latino ethnicity. Patient ages ranged from 23 to 88 years of age, with a mean age of 60 years. The most commonly administered MEC chemotherapeutic agents were carboplatin (51%), oxaliplatin (24%), and cyclophosphamide (12%).

Table 13 Treatment Regimens in Adult MEC Trial*

	Day 1	Day 2	Day 3
Fosaprepitant Regimen
Fosaprepitant for Injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none
Oral Dexamethasone	12 mg	none	none
Oral Ondansetron	8 mg for 2 doses	none	none
Standard Therapy
Oral Dexamethasone	20 mg	none	none
Oral Ondansetron	8 mg for 2 doses	8 mg twice daily	8 mg twice daily

*Fosaprepitant for injection placebo and dexamethasone placebo (on Day 1) were used to maintain blinding.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1. The 12 mg dose reflects a dosage adjustment to account for a drug interaction with the Fosaprepitant for injection regimen [see Clinical Pharmacology (12.3)].

The first ondansetron dose was administered 30 to 60 minutes prior to chemotherapy treatment on Day 1 and the second dose was administered 8 hours after first ondansetron dose.

The primary endpoint was complete response (defined as no vomiting and no rescue therapy) in the delayed phase (25 to 120 hours) of chemotherapy-induced nausea and vomiting. The results by treatment group are shown in Table 14.

Table 14 Percent of Adult Patients Receiving MEC Responding by Treatment Group

ENDPOINTS	Fosaprepitant for Injection Regimen(N = 502)*%	Standard Therapy Regimen(N = 498)* %	P-Value	Treatment Difference (95% CI)
PRIMARYENDPOINT
Complete Response
Delayed phase	78.9	68.5	<0.001	10.4 (5.1, 15.9)

*N: Number of patients included in the intention to treat population.

Complete Response = no vomiting and no use of rescue therapy.

Delayed phase = 25 to 120 hours post-initiation of chemotherapy.

16 How Supplied/storage And Handling ⮝

No. 034 Single-dose glass vial containing 150 mg of fosaprepitant as a white to off white lyophilized cake or powder for reconstitution. Supplied as follows:

NDC43598-859-11	1 vial per carton.
	StorageFosaprepitant for injection vials must be refrigerated, store at 2 C - 8 C(36 F - 46 F).The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].

Package Label Principal Display Panel Section - Vial ⮝

NDC 60505-6105-1

Fosaprepitant dimeglumine for Injection

150 mg per vial

Single-dose Vial

Discard Unused Portion

Rx only

APOTEX CORP.

Package Label Principal Display Panel Section - Carton ⮝

NDC 60505-6105-1

Fosaprepitant dimeglumine for Injection

150 mg per vial*

Rx only

One Single-dose Vial

Discard Unused Portion

STERILE LYOPHILIZED POWDER FOR INTRAVENOUS USE ONLY AFTER RECONSTITUTION AND DILUTION

DO NOT USE WITH SOLUTIONS CONTAINING DIVALENT CATIONS (e.g., Ca2+, Mg2+) INCLUDING LACTATED RINGER'S SOLUTION AND HARTMANN'S SOLUTION.

APOTEX CORP.

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:60505-6105 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength Fosaprepitant Dimeglumine (UNII: D35FM8T64X) (Aprepitant - UNII:1NF15YR6UY) Fosaprepitant 150 mg in 5 mL

Inactive Ingredients Ingredient Name Strength EDETATE DISODIUM (UNII: 7FLD91C86K) 5.4 mg in 5 mL HYDROCHLORIC ACID (UNII: QTT17582CB) ANHYDROUS LACTOSE (UNII: 3SY5LH9PMK) 375 mg in 5 mL POLYSORBATE 80 (UNII: 6OZP39ZG8H) 75 mg in 5 mL SODIUM HYDROXIDE (UNII: 55X04QC32I)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:60505-6105-1 1 in 1 CARTON 09/05/2019 1 5 mL in 1 VIAL, SINGLE-DOSE; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA205020 09/05/2019

Labeler - Apotex Corp (845263701)

Registrant - Apotex Inc (209429182)

Establishment
Name	Address	ID/FEI	Business Operations
Gland Pharma Limited		918601238	manufacture(60505-6105) , analysis(60505-6105) , pack(60505-6105)

Revised: 8/2019 Document Id: 1ee79c2f-9989-0932-3c60-1d9c38ea997d 34391-3 Set id: e9e4546d-4d30-7a21-5563-27fba38005ee Version: 1 Effective Time: 20190829 Apotex Corp

2 Dosage And Administration ⮝

2.1 Prevention of Nausea and Vomiting Associated with HEC and MEC in Adult Patients

The recommended dosage of fosaprepitant for injection, dexamethasone, and a 5-HT3 antagonist for the prevention of nausea and vomiting associated with administration of HEC or MEC in adults is shown in Table 1 or Table 2, respectively. Administer fosaprepitant for injection as an intravenous infusion on Day 1 over 20 to 30 minutes completing the infusion approximately 30 minutes, prior to chemotherapy.
Table 1Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with HEC

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none	none
Dexamethasone*	12 mg orally	8 mg orally	8 mg orally twice daily	8 mg orally twice daily
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage	none	none	none

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Also administer dexamethasone in the evenings on Days 3 and 4. A 50% dosage reduction of dexamethasone on Days 1 and 2 is recommended to account for a drug interaction with fosaprepitant for injection [see Clinical Pharmacology (12.3)].

Table 2 Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with MEC

	Day 1
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy
Dexamethasone*	12 mg orally
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1. A 50% dosage reduction of dexamethasone is recommended to account for a drug interaction with fosaprepitant [ see Clinical Pharmacology (12.3)].
Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2.3 Preparation of Fosaprepitant for Injection

Table 5
Preparation Instructions for Fosaprepitant for Injection (150 mg)

Step 1	Aseptically inject 5 mL 0.9% Sodium Chloride Injection, USP into the vial. Assure that 0.9% Sodium Chloride Injection, USP is added to the vial along the vial wall in order to prevent foaming. Swirl the vial gently. Avoid shaking and jetting 0.9% Sodium Chloride Injection, USP into the vial.
Step 2	Aseptically prepare an infusion bag filled with 145 mL of 0.9% Sodium Chloride Injection, USP .
Step 3	Aseptically withdraw the entire volume from the vial and transfer it into the infusion bag containing 145 mL of 0.9% Sodium Chloride Injection, USP to yield a total volume of 150 mLand a final concentration of 1 mg/mL.
Step 4	Gently invert the bag 2 to 3 times.
Step 5	Adults The entire volume of the prepared infusion bag (150 mL) should be administered.
Step 6	Before administration, inspect the bag for particulate matter and discoloration. Discard the bag if particulate and/or discoloration are observed.

Caution: Do not mix or reconstitute fosaprepitant for injection with solutions for which physical and chemical compatibility have not been established. Fosaprepitant for injection is incompatible with any solutions containing divalent cations (e.g., Ca2+, Mg2+), including Lactated Ringer s Solution and Hartmann's Solution.
Storage
The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].
Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

Package Label.principal Display Panel ⮝

Fosaprepitant-carton-label

Fosaprepitant-vial-label

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:69539-034 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength FOSAPREPITANT DIMEGLUMINE (UNII: D35FM8T64X) (APREPITANT - UNII:1NF15YR6UY) FOSAPREPITANT 150 mg in 5 mL

Inactive Ingredients Ingredient Name Strength EDETATE DISODIUM (UNII: 7FLD91C86K) POLYSORBATE 80 (UNII: 6OZP39ZG8H) ANHYDROUS LACTOSE (UNII: 3SY5LH9PMK) SODIUM HYDROXIDE (UNII: 55X04QC32I) HYDROCHLORIC ACID (UNII: QTT17582CB) WATER (UNII: 059QF0KO0R)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:69539-034-01 1 in 1 CARTON 09/05/2019 1 5 mL in 1 VIAL, SINGLE-DOSE; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA209965 09/05/2019

Labeler - MSN LABORATORIES PRIVATE LIMITED (650786952)

Establishment
Name	Address	ID/FEI	Business Operations
MSN LABORATORIES PRIVATE LIMITED		650786952	ANALYSIS(69539-034) , MANUFACTURE(69539-034)

Revised: 9/2019 Document Id: 6ad5add5-bb70-4be5-8fb0-d6c61a6fcd4d 34391-3 Set id: 1f80f069-0796-4540-a2f3-2e33d592da6c Version: 7 Effective Time: 20190906 MSN LABORATORIES PRIVATE LIMITED

Package Label Principal Display Panel Section ⮝

Vial Label:

No Title 1572451532 ⮝

Carton label: Unvarnished Area Consists of: 2D Barcode, Lot Number, Expiry Date and Serial Number

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:43598-859 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength Fosaprepitant Dimeglumine (UNII: D35FM8T64X) (Aprepitant - UNII:1NF15YR6UY) Fosaprepitant 150 mg in 5 mL

Inactive Ingredients Ingredient Name Strength Edetate Sodium (UNII: MP1J8420LU) 18.8 mg in 5 mL Anhydrous Lactose (UNII: 3SY5LH9PMK) 375 mg in 5 mL Polysorbate 80 (UNII: 6OZP39ZG8H) 75 mg in 5 mL Sodium Hydroxide (UNII: 55X04QC32I) Hydrochloric Acid (UNII: QTT17582CB)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:43598-859-11 1 in 1 CARTON 09/06/2019 1 1 mL in 1 VIAL; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA209965 09/06/2019

Labeler - Dr. Reddy's Laboratories Inc., (802315887)

Establishment
Name	Address	ID/FEI	Business Operations
MSN LABORATORIES PRIVATE LIMITED		650786952	manufacture(43598-859) , analysis(43598-859)

Revised: 9/2019 Document Id: 758fbfce-39fd-5a8e-e85f-c6656e03c242 34391-3 Set id: f34c931c-78b9-90c1-3fa5-bb34a227f2ad Version: 2 Effective Time: 20190906 Dr. Reddy's Laboratories Inc.,

1 Indications & Usage ⮝

Fosaprepitant for injection, in combination with other antiemetic agents, is indicated in adults for the prevention of:

• acute and delayed nausea and vomiting associated with initial and repeat courses of highly emetogenic cancer chemotherapy (HEC) including high-dose cisplatin.
• delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC).

Limitations of Use

• Fosaprepitant for injection has not been studied for the treatment of established nausea and vomiting.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2 Dosage & Administration ⮝

2.1 Prevention of Nausea and Vomiting Associated with HEC and MEC in Adult Patients

The recommended dosage of fosaprepitant for injection, dexamethasone, and a 5-HT3 antagonist for the prevention of nausea and vomiting associated with administration of HEC or MEC in adults is shown in Table 1 or Table 2, respectively. Administer fosaprepitant for injection as an intravenous infusion on Day 1 over 20 to 30 minutes, completing the infusion approximately 30 minutes prior to chemotherapy.

Table 1
Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with HEC

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none	none
Dexamethasone*	12 mg orally	8 mg orally	8 mg orally twice daily	8 mg orally twice daily
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage	none	none	none

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Also administer dexamethasone in the evenings on Days 3 and 4. A 50% dosage reduction of dexamethasone on Days 1 and 2 is recommended to account for a drug interaction with fosaprepitant for injection [see Clinical Pharmacology (12.3)].

Table 2
Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with MEC

	Day 1
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy
Dexamethasone*	12 mg orally
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1. A 50% dosage reduction of dexamethasone is recommended to account for a drug interaction with fosaprepitant for injection [see Clinical Pharmacology (12.3)].

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2.3 Preparation of Fosaprepitant for Injection

Table 5
Preparation Instructions for Fosaprepitant for injection (150 mg)

Step 1	Aseptically inject 5 mL 0.9% Sodium Chloride Injection, USP into the vial. Assure that 0.9% Sodium Chloride Injection, USP is added to the vial along the vial wall in order to prevent foaming. Swirl the vial gently. Avoid shaking and jetting 0.9% Sodium Chloride Injection, USP into the vial.
Step 2	Aseptically prepare an infusion bag filled with 145 mLof 0.9% Sodium Chloride Injection, USP.
Step 3	Aseptically withdraw the entire volume from the vial and transfer it into the infusion bag containing 145 mLof 0.9% Sodium Chloride Injection, USP to yield a total volume of 150 mLand a final concentration of 1 mg/mL.
Step 4	Gently invert the bag 2 to 3 times.
Step 5	AdultsThe entire volume of the prepared infusion bag (150 mL) should be administered.
Step 6	Before administration, inspect the bag for particulate matter and discoloration. Discard the bag if particulate and/or discoloration are observed.

Caution: Do not mix or reconstitute fosaprepitant for injection with solutions for which physical and chemical compatibility have not been established. Fosaprepitant for injection is incompatible with any solutions containing divalent cations (e.g., Ca2+, Mg2+), including Lactated Ringer s Solution and Hartmann's Solution.

Storage
The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

3 Dosage Forms & Strengths ⮝

Fosaprepitant for injection: 150 mg fosaprepitant, white to off-white lyophilized cake or powder in single-dose glass vial for reconstitution

No Title 1572452384 ⮝

Patient Information FOSAPREPITANT for injection (FOS a PRE pi tant) for intravenous use
What is Fosaprepitant for Injection? Fosaprepitant for Injection is a prescription medicine used with other medicines that treat nausea and vomiting in adults to prevent nausea and vomiting caused by certain anti-cancer (chemotherapy) medicines. Fosaprepitant for Injection is not used to treat nausea and vomiting that you already have. It is not known if Fosaprepitant for Injection is safe and effective in children.
Do not receive Fosaprepitant for Injection if you: are allergic to fosaprepitant, aprepitant, or any of the ingredients in Fosaprepitant for Injection. See the end of this leaflet for a complete list of the ingredients in Fosaprepitant for Injection. are taking pimozide (ORAP).
Before receiving Fosaprepitant for Injection, tell your healthcare provider about all your medical conditions including, if you: have liver problems. are pregnant or plan to become pregnant. It is not known if Fosaprepitant for Injection can harm your unborn baby. Women who use birth control medicines containing hormones to prevent pregnancy (birth control pills, skin patches, implants, and certain IUDs) should also use a backup method of birth control that does not contain hormones, such as condoms or spermicides, during treatment with Fosaprepitant for Injection and for 1 month after receiving the last dose of Fosaprepitant for Injection. are breastfeeding or plan to breastfeed. It is not known if Fosaprepitant for Injection passes into your breast milk. Talk to your healthcare provider about the best way to feed your baby if you receive Fosaprepitant for Injection. Tell your healthcare provider about all the medicines you take, including prescription and over-the-counter medicines, vitamins, and herbal supplements. Fosaprepitant for Injection may affect the way other medicines work, and other medicines may affect the way Fosaprepitant for Injection works , causing serious side effects. Know the medicines you take. Keep a list of them to show your healthcare provider or pharmacist when you get a new medicine.
How will I receive Fosaprepitant for Injection? Fosaprepitant for Injection will be given on Day 1 of chemotherapy treatment. It will be given to you by intravenous (IV) infusion in your vein about 50 to 60 minutes before you start your chemotherapy treatment. If you take the blood thinner medicine warfarin sodium (COUMADIN, JANTOVEN), your healthcare provider may do blood tests after you receive Fosaprepitant for Injection to check your blood clotting.
What are the possible side effects of Fosaprepitant for Injection? Fosaprepitant for Injection may cause serious side effects, including: Serious allergic reactions. Allergic reactions can happen with Fosaprepitant for Injection and may be serious. Tell your healthcare provider or nurse right away if you have hives, rash, itching, flushing or redness of your face or skin, trouble breathing or swallowing, dizziness, a rapid or weak heartbeat, or you feel faint during or soon after you receive Fosaprepitant for Injection, as you may need emergency medical care. Severe skin reactions, which may include rash, skin peeling, or sores, may occur. Get medical care right away if you have signs of a severe skin reaction. Infusion site reactions (ISR) at or near the infusion site have happened with Fosaprepitant for Injection. Most severe ISR have happened with a certain type of chemotherapy medicine that can burn or blister your skin (vesicant) with side effects, including pain, swelling and redness. Death of skin tissue (necrosis) has happened in some people getting this type of chemotherapy medicine. Most ISR can happen with the first, second, or third dose and some can last up to 2 weeks or longer. Tell your healthcare provider right away if you get any infusion site side effects. The most common side effects of Fosaprepitant for Injection include:
tiredness	feeling weak or numb in your arms and legs
diarrhea	indigestion or heartburn
low white blood cell and red blood cell counts	urinary tract infection
weakness	pain in your arms and legs
Tell your healthcare provider if you have any side effect that bothers you or that does not go away. These are not all of the possible side effects of Fosaprepitant for Injection. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
General information about the safe and effective use of Fosaprepitant for Injection. If you would like more information about Fosaprepitant for Injection, talk with your healthcare provider. You can ask your healthcare provider or pharmacist for information about Fosaprepitant for Injection that is written for health professionals. For more information about Fosaprepitant for Injection call Teva Pharmaceuticals USA, Inc. at 1-888-838-2872.
What are the ingredients in Fosaprepitant for Injection? Active ingredient: fosaprepitant dimeglumine Inactive ingredients: edetate disodium, meglumine, povidone k12, and water for injection. Hydrochloric acid and/or meglumine may have been added for pH adjustment. Brands listed are trademarks of their respective owners. Manufactured by: Actavis Italy, S.p.A., Via Pasteur 10, Nerviano, Italy 20014 or Sindan Pharma SRL, 11th Ion Mihalache Blvd., Bucharest 1, Romania 011171 Manufactured for: Teva Pharmaceuticals USA, Inc. North Wales, PA 19454

This Patient Information has been approved by the U.S. Food and Drug Administration. Iss. 9/2019

Principal Display Panel ⮝

NDC 0591-4385-79
Rx only
Fosaprepitant for Injection
150 mg/vial
Sterile Lyophilized Powder for Intravenous Use Only After Reconstitution and Dilution
DO NOT USE WITH SOLUTIONS CONTAINING DIVALENT CATIONS (e.g., Ca2+, Mg2+) INCLUDING LACTATED RINGER S SOLUTION AND HARTMANN S SOLUTION.
Each vial contains:
Fosaprepitant .150 mg
(equivalent to 245.3 mg of fosaprepitant dimeglumine)
Single-Dose Vial
Discard Unused Portion
Teva

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:0591-4385 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength FOSAPREPITANT DIMEGLUMINE (UNII: D35FM8T64X) (APREPITANT - UNII:1NF15YR6UY) FOSAPREPITANT 150 mg

Inactive Ingredients Ingredient Name Strength EDETATE DISODIUM (UNII: 7FLD91C86K) MEGLUMINE (UNII: 6HG8UB2MUY) POVIDONE K12 (UNII: 333AG72FWJ) WATER (UNII: 059QF0KO0R) HYDROCHLORIC ACID (UNII: QTT17582CB)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:0591-4385-79 1 in 1 CARTON; Type 0: Not a Combination Product 09/19/2019

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date NDA NDA210064 09/19/2019

Labeler - Actavis Pharma, Inc. (119723554)

Revised: 9/2019 Document Id: 7e0829b6-367d-4e39-8185-367320f20989 34391-3 Set id: 9dbd4c29-d894-4839-9b22-a2f65c8c8ad1 Version: 10 Effective Time: 20190911 Actavis Pharma, Inc.

5 Warnings And Precautions  ⮝

5.1 Clinically Significant CYP3A4 Drug Interactions

Fosaprepitant, a prodrug of aprepitant, is a weak inhibitor of CYP3A4, and aprepitant is a substrate, inhibitor, and inducer of CYP3A4.

• Use of fosaprepitant for injection with other drugs that are CYP3A4 substrates, may result in increased plasma concentration of the concomitant drug.
  • Use of pimozide with fosaprepitant for injection is contraindicated due to the risk of significantly increased plasma concentrations of pimozide, potentially resulting in prolongation of the QT interval, a known adverse reaction of pimozide [see Contraindications (4)].
• Use of fosaprepitant for injection with strong or moderate CYP3A4 inhibitors (e.g., ketoconazole, diltiazem) may increase plasma concentrations of aprepitant and result in an increased risk of adverse reactions related to fosaprepitant for injection.
• Use of fosaprepitant for injection with strong CYP3A4 inducers (e.g., rifampin) may result in a reduction in aprepitant plasma concentrations and decreased efficacy of fosaprepitant for injection.

See Table 7 and Table 8 for a listing of potentially significant drug interactions [see Drug Interactions (7.1, 7.2)].

5.2 Hypersensitivity Reactions

Serious hypersensitivity reactions, including anaphylaxis and anaphylactic shock, during or soon after infusion of fosaprepitant have occurred. Symptoms including flushing, erythema, dyspnea, hypotension and syncope have been reported [see Adverse Reactions (6.2)].

Monitor patients during and after infusion. If hypersensitivity reactions occur, discontinue the infusion and administer appropriate medical therapy. Do not reinitiate fosaprepitant for injection in patients who experience these symptoms with previous use [see Contraindications (4)].

5.3 Infusion Site Reactions

Infusion site reactions (ISRs) have been reported with the use of fosaprepitant for injection [see Adverse Reactions (6.1)]. The majority of severe ISRs, including thrombophlebitis and vasculitis, were reported with concomitant vesicant (anthracycline-based) chemotherapy administration, particularly when associated with extravasation. Necrosis was also reported in some patients with concomitant vesicant chemotherapy. Most ISRs occurred with the first, second or third exposure to single doses of fosaprepitant for injection and in some cases, reactions persisted for two weeks or longer. Treatment of severe ISRs consisted of medical, and in some cases surgical, intervention.

Avoid infusion of fosaprepitant for injection into small veins or through a butterfly catheter. If a severe ISR develops during infusion, discontinue the infusion and administer appropriate medical treatment.

5.4 Decrease in INR with Concomitant Warfarin

Coadministration of fosaprepitant for injection with warfarin, a CYP2C9 substrate, may result in a clinically significant decrease in the International Normalized Ratio (INR) of prothrombin time [see Clinical Pharmacology (12.3)]. Monitor the INR in patients on chronic warfarin therapy in the 2-week period, particularly at 7 to 10 days, following initiation of fosaprepitant for injection with each chemotherapy cycle [see Drug Interactions (7.1)].

5.5 Risk of Reduced Efficacy of Hormonal Contraceptives

Upon coadministration with fosaprepitant for injection, the efficacy of hormonal contraceptives may be reduced during administration of and for 28 days following the last dose of fosaprepitant for injection [see Clinical Pharmacology (12.3)]. Advise patients to use effective alternative or back-up methods of contraception during treatment with fosaprepitant for injection and for 1 month following administration of fosaprepitant for injection [see Drug Interactions (7.1), Use in Specific Populations (8.3)].

6 Adverse Reactions  ⮝

The following clinically significant adverse reactions are described elsewhere in the labeling:

• Hypersensitivity Reactions [see Warnings and Precautions (5.2)]
• Infusion Site Reactions [see Warnings and Precautions (5.3)]

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.

The overall safety of fosaprepitant for injection was evaluated in approximately 1600 adult patients.

Adverse Reactions in Adults for the Prevention of Nausea and Vomiting Associated with MEC

In an active-controlled clinical trial in patients receiving MEC, safety was evaluated in 504 patients receiving a single dose of fosaprepitant for injection in combination with ondansetron and dexamethasone (fosaprepitant for injection regimen) compared to 497 patients receiving ondansetron and dexamethasone alone (standard therapy). The most common adverse reactions are listed in Table 6.

Table 6

*Reported in 2% of patients treated with the fosaprepitant for injection regimen and at a greater incidence than standard therapy.
Fosaprepitant for injection regimen
Standard therapy
Most Common Adverse Reactions in Patients Receiving MEC*
	Fosaprepitant for injection, ondansetron, and dexamethasone (N=504)	Ondansetron and dexamethasone (N=497)
fatigue	15%	13%
diarrhea	13%	11%
neutropenia	8%	7%
asthenia	4%	3%
anemia	3%	2%
peripheral neuropathy	3%	2%
leukopenia	2%	1%
dyspepsia	2%	1%
urinary tract infection	2%	1%
pain in extremity	2%	1%

Infusion-site reactions were reported in 2.2% of patients treated with the fosaprepitant for injection regimen compared to 0.6% of patients treated with standard therapy. The infusion-site reactions included: infusion-site pain (1.2%, 0.4%), injection-site irritation (0.2%, 0.0%), vessel puncture-site pain (0.2%, 0.0%), and infusion-site thrombophlebitis (0.6%, 0.0%), reported in the fosaprepitant for injection regimen compared to standard therapy, respectively.

Adverse Reactions in Adults for the Prevention of Nausea and Vomiting Associated with HEC

In an active-controlled clinical study in patients receiving HEC, safety was evaluated for 1,143 patients receiving a single dose of fosaprepitant for injection compared to 1,169 patients receiving the 3-day regimen of oral aprepitant [see Clinical Studies (14.1)]. The safety profile was generally similar to that seen in the MEC study with fosaprepitant and prior HEC studies with aprepitant. However, infusion-site reactions occurred at a higher incidence in patients in the fosaprepitant group (3.0%) compared to those in the aprepitant group (0.5%). The following additional infusion-site reactions occurred in the HEC study and were not reported in the MEC study described above: infusion-site erythema (0.5%, 0.1%), infusion-site pruritus (0.3%, 0.0%), and infusion-site induration (0.2%, 0.1%), reported in the fosaprepitant group compared to the aprepitant group, respectively.

Because fosaprepitant is converted to aprepitant, those adverse reactions associated with aprepitant might also be expected to occur with fosaprepitant for injection. See the full prescribing information for aprepitant capsules for complete safety information regarding studies performed with oral aprepitant.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.'s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.'s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

6.2 Postmarketing Experience

The following adverse reactions have been identified during post-approval use of fosaprepitant for injection. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possible to reliably estimate their frequency or establish a causal relationship to drug exposure.

Skin and subcutaneous tissue disorders: pruritus, rash, urticaria, Stevens-Johnson syndrome/toxic epidermal necrolysis [see Warnings and Precautions (5.2)].

Immune system disorders: hypersensitivity reactions including anaphylaxis and anaphylactic shock [see Contraindications (4), Warnings and Precautions (5.2)].

Nervous system disorders: ifosfamide-induced neurotoxicity reported after fosaprepitant for injection and ifosfamide coadministration.

7 Drug Interactions  ⮝

7.1 Effect of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs

When administered intravenously, fosaprepitant, a prodrug of aprepitant, is converted to aprepitant within 30 minutes. Therefore, drug interactions following administration of fosaprepitant for injection are likely to occur with drugs that interact with oral aprepitant.

Fosaprepitant, given as a single 150-mg dose, is a weak inhibitor of CYP3A4, and the weak inhibition of CYP3A4 continues for 2 days after single dose administration. Single dose fosaprepitant does not induce CYP3A4. Aprepitant is a substrate, an inhibitor, and an inducer of CYP3A4. Aprepitant is also an inducer of CYP2C9 [see Clinical Pharmacology (12.3)].

Some substrates of CYP3A4 are contraindicated with fosaprepitant for injection [see Contraindications (4)]. Dosage adjustment of some CYP3A4 and CYP2C9 substrates may be warranted, as shown in Table 7.

Table 7

Effects of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs
CYP3A4 Substrates
Pimozide
Clinical Impact	Increased pimozide exposure.
Intervention	Fosaprepitant for injection is contraindicated [see Contraindications (4)].
Benzodiazepines
Clinical Impact	Increased exposure to midazolam or other benzodiazepines metabolized via CYP3A4 (alprazolam, triazolam) may increase the risk of adverse reactions [see Clinical Pharmacology (12.3)].
Intervention	Monitor for benzodiazepine-related adverse reactions.
Dexamethasone
Clinical Impact	Increased dexamethasone exposure [see Clinical Pharmacology (12.3)].
Intervention	Reduce the dose of oral dexamethasone by approximately 50% [see Dosage and Administration (2.1)].
Methylprednisolone
Clinical Impact	Increased methylprednisolone exposure [see Clinical Pharmacology (12.3)].
Intervention	Reduce the dose of oral methylprednisolone by approximately 50% on Days 1 and 2 for patients receiving HEC and on Day 1 for patients receiving MEC. Reduce the dose of intravenous methylprednisolone by 25% on Days 1 and 2 for patients receiving HEC and on Day 1 for patients receiving MEC.
Chemotherapeutic agents that are metabolized by CYP3A4
Clinical Impact	Increased exposure of the chemotherapeutic agent may increase the risk of adverse reactions [see Clinical Pharmacology (12.3)].
Intervention	Vinblastine, vincristine, or ifosfamide or other chemotherapeutic agents Monitor for chemotherapeutic-related adverse reactions. Etoposide, vinorelbine, paclitaxel, and docetaxel No dosage adjustment needed.
Hormonal Contraceptives
Clinical Impact	Decreased hormonal exposure during administration of and for 28 days after administration of the last dose of fosaprepitant for injection [see Warnings and Precautions (5.5), Use in Specific Populations (8.3), and Clinical Pharmacology (12.3)].
Intervention	Effective alternative or back-up methods of contraception (such as condoms and spermicides) should be used during treatment with fosaprepitant for injection and for 1 month following administration of fosaprepitant for injection.
Examples	birth control pills, skin patches, implants, and certain IUDs
CYP2C9 Substrates
Warfarin
Clinical Impact	Decreased warfarin exposure and prolongation of prothrombin time (INR) [see Warnings and Precautions (5.4), Clinical Pharmacology (12.3)].
Intervention	In patients on chronic warfarin therapy, monitor the prothrombin time (INR) in the 2-week period, particularly at 7 to 10 days, following administration of fosaprepitant for injection with each chemotherapy cycle.
Other
5-HT3 Antagonists
Clinical Impact	No change in the exposure of the 5-HT3 antagonist [see Clinical Pharmacology (12.3)].
Intervention	No dosage adjustment needed.
Examples	ondansetron, granisetron, dolasetron

7.2 Effect of Other Drugs on the Pharmacokinetics of Fosaprepitant/Aprepitant

Aprepitant is a CYP3A4 substrate [see Clinical Pharmacology (12.3)]. Co-administration of fosaprepitant for injection with drugs that are inhibitors or inducers of CYP3A4 may result in increased or decreased plasma concentrations of aprepitant, respectively, as shown in Table 8.

Table 8

Effects of Other Drugs on Pharmacokinetics of Fosaprepitant/Aprepitant
Moderate to Strong CYP3A4 Inhibitors
Clinical Impact	Significantly increased exposure of aprepitant may increase the risk of adverse reactions associated with fosaprepitant for injection [see Adverse Reactions (6.1), Clinical Pharmacology (12.3)].
Intervention	Avoid concomitant use of fosaprepitant for injection.
Examples	Moderate inhibitor: diltiazem Strong inhibitors: ketoconazole, itraconazole, nefazodone, troleandomycin, clarithromycin, ritonavir, nelfinavir
Strong CYP3A4 Inducers
Clinical Impact	Substantially decreased exposure of aprepitant in patients chronically taking a strong CYP3A4 inducer may decrease the efficacy of fosaprepitant for injection [see Clinical Pharmacology (12.3)].
Intervention	Avoid concomitant use of fosaprepitant for injection.
Examples	rifampin, carbamazepine, phenytoin

10 Overdosage  ⮝

There is no specific information on the treatment of overdosage with fosaprepitant or aprepitant.

In the event of overdose, fosaprepitant for injection should be discontinued and general supportive treatment and monitoring should be provided. Because of the antiemetic activity of fosaprepitant for injection, drug-induced emesis may not be effective in cases of fosaprepitant for injection overdosage.

Aprepitant is not removed by hemodialysis.

12 Clinical Pharmacology  ⮝

12.1 Mechanism of Action

Fosaprepitant is a prodrug of aprepitant and accordingly, its antiemetic effects are attributable to aprepitant.

Aprepitant is a selective high-affinity antagonist of human substance P/neurokinin 1 (NK1) receptors. Aprepitant has little or no affinity for serotonin (5-HT3), dopamine, and corticosteroid receptors, the targets of existing therapies for chemotherapy-induced nausea and vomiting (CINV). Aprepitant has been shown in animal models to inhibit emesis induced by cytotoxic chemotherapeutic agents, such as cisplatin, via central actions. Animal and human Positron Emission Tomography (PET) studies with aprepitant have shown that it crosses the blood brain barrier and occupies brain NK1 receptors. Animal and human studies have shown that aprepitant augments the antiemetic activity of the 5-HT3-receptor antagonist ondansetron and the corticosteroid dexamethasone and inhibits both the acute and delayed phases of cisplatin-induced emesis.

12.2 Pharmacodynamics

Cardiac Electrophysiology

In a randomized, double-blind, positive-controlled, thorough QTc study, a single 200-mg dose of fosaprepitant (approximately 1.3 times the recommended dose) had no effect on the QTc interval.

12.3 Pharmacokinetics

Aprepitant after Fosaprepitant Administration

Following administration of a single intravenous 150-mg dose of fosaprepitant, a prodrug of aprepitant administered as a 20-minute infusion to healthy subjects, the mean AUC0- of aprepitant was 37.4 ( 14.8) mcg hr/mL and the mean maximal aprepitant concentration (Cmax) was 4.2 ( 1.2) mcg/mL. Plasma concentrations of fosaprepitant are below the limits of quantification (10 ng/mL) within 30 minutes of the completion of infusion.

Distribution

Aprepitant is greater than 95% bound to plasma proteins. The mean apparent volume of distribution at steady state (Vdss) was approximately 70 L in humans.

Aprepitant crosses the blood brain barrier in humans [see Clinical Pharmacology (12.1)].

Elimination

Metabolism

Fosaprepitant is converted to aprepitant in in vitro incubations with human liver preparations and in S9 preparations from multiple other human tissues including kidney, lung and ileum. Thus, it appears that the conversion of fosaprepitant to aprepitant can occur in multiple extrahepatic tissues in addition to the liver.

Aprepitant undergoes extensive metabolism. In vitro studies using human liver microsomes indicate that aprepitant is metabolized primarily by CYP3A4 with minor metabolism by CYP1A2 and CYP2C19. Metabolism is largely via oxidation at the morpholine ring and its side chains. No metabolism by CYP2D6, CYP2C9, or CYP2E1 was detected.

In healthy young adults, aprepitant accounts for approximately 24% of the radioactivity in plasma over 72 hours following a single oral 300-mg dose of [14C]-aprepitant, indicating a substantial presence of metabolites in the plasma. Seven metabolites of aprepitant, which are only weakly active, have been identified in human plasma.

Excretion

Following administration of a single intravenous 100-mg dose of [14C]-fosaprepitant to healthy subjects, 57% of the radioactivity was recovered in urine and 45% in feces.

Aprepitant is eliminated primarily by metabolism; aprepitant is not renally excreted. The apparent terminal half-life ranged from approximately 9 to 13 hours.

Specific Populations

Age: Geriatric Population

Following oral administration of a single 125-mg dose of aprepitant on Day 1 and 80 mg once daily on Days 2 through 5, the AUC0-24hr of aprepitant was 21% higher on Day 1 and 36% higher on Day 5 in elderly (65 years and older) relative to younger adults. The Cmax was 10% higher on Day 1 and 24% higher on Day 5 in elderly relative to younger adults. These differences are not considered clinically meaningful [see Use in Specific Populations (8.5)].

Sex

Following oral administration of a single dose of aprepitant, ranging from 40 mg to 375 mg, the AUC0-24hr and Cmax are 9% and 17% higher in females as compared with males. The half-life of aprepitant is approximately 25% lower in females as compared with males and Tmax occurs at approximately the same time. These differences are not considered clinically meaningful.

Race/Ethnicity

Following oral administration of a single dose of aprepitant, ranging from 40 mg to 375 mg, the AUC0-24hr and Cmax are approximately 27% and 19% higher in Hispanics as compared with Caucasians. The AUC0-24hr and Cmax were 74% and 47% higher in Asians as compared to Caucasians. There was no difference in AUC0-24hr or Cmax between Caucasians and Blacks. These differences are not considered clinically meaningful.

Renal Impairment

A single 240-mg oral dose of aprepitant was administered to patients with severe renal impairment (creatinine clearance less than 30 mL/min/1.73 m2 as measured by 24-hour urinary creatinine clearance) and to patients with end stage renal disease (ESRD) requiring hemodialysis.

In patients with severe renal impairment, the AUC0- of total aprepitant (unbound and protein bound) decreased by 21% and Cmax decreased by 32%, relative to healthy subjects (creatinine clearance greater than 80 mL/min estimated by Cockcroft-Gault method). In patients with ESRD undergoing hemodialysis, the AUC0- of total aprepitant decreased by 42% and Cmax decreased by 32%. Due to modest decreases in protein binding of aprepitant in patients with renal disease, the AUC of pharmacologically active unbound drug was not significantly affected in patients with renal impairment compared with healthy subjects. Hemodialysis conducted 4 or 48 hours after dosing had no significant effect on the pharmacokinetics of aprepitant; less than 0.2% of the dose was recovered in the dialysate.

Hepatic Impairment

Fosaprepitant is metabolized in various extrahepatic tissues; therefore hepatic impairment is not expected to alter the conversion of fosaprepitant to aprepitant.

Following administration of a single 125-mg oral dose of aprepitant on Day 1 and 80 mg once daily on Days 2 and 3 to patients with mild hepatic impairment (Child-Pugh score 5 to 6), the AUC0-24hr of aprepitant was 11% lower on Day 1 and 36% lower on Day 3, as compared with healthy subjects given the same regimen. In patients with moderate hepatic impairment (Child-Pugh score 7 to 9), the AUC0-24hr of aprepitant was 10% higher on Day 1 and 18% higher on Day 3, as compared with healthy subjects given the same regimen. These differences in AUC0-24hr are not considered clinically meaningful. There are no clinical or pharmacokinetic data in patients with severe hepatic impairment (Child-Pugh score greater than 9) [see Use in Specific Populations (8.6)].

Body Mass Index (BMI)

For every 5 kg/m2 increase in BMI, AUC0-24hr and Cmax of aprepitant decrease by 9% and 10%. BMI of subjects in the analysis ranged from 18 kg/m2 to 36 kg/m2. This change is not considered clinically meaningful.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.'s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc.'s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

Drug Interactions Studies

Fosaprepitant, given as a single 150-mg dose, is a weak inhibitor of CYP3A4, with no evidence of inhibition or induction of CYP3A4 observed on Day 4. The weak inhibition of CYP3A4 continues for 2 days after single dose administration of fosaprepitant. Aprepitant is a substrate, an inhibitor, and an inducer of CYP3A4. Aprepitant is also an inducer of CYP2C9.

Fosaprepitant or aprepitant is unlikely to interact with drugs that are substrates for the P-glycoprotein transporter.

Effects of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs

CYP3A4 Substrates

Midazolam: Fosaprepitant 150 mg administered as a single intravenous dose on Day 1 increased the AUC0- of midazolam by approximately 1.8-fold on Day 1 and had no effect on Day 4 when midazolam was coadministered as a single oral dose of 2 mg on Days 1 and 4 [see Drug Interactions (7.1)].

Corticosteroids:

Dexamethasone: Fosaprepitant administered as a single 150 mg intravenous dose on Day 1 increased the AUC0-24hr of dexamethasone, administered as a single 8-mg oral dose on Days 1, 2, and 3, by approximately 2-fold on Days 1 and 2 [see Dosage and Administration (2.1), Drug Interactions (7.1)].

Methylprednisolone: When oral aprepitant as a 3-day regimen (125-mg/80-mg/80-mg) was administered with intravenous methylprednisolone 125 mg on Day 1 and oral methylprednisolone 40 mg on Days 2 and 3, the AUC of methylprednisolone was increased by 1.34-fold on Day 1 and by 2.5-fold on Day 3 [see Drug Interactions (7.1)].

Chemotherapeutic agents:

Docetaxel: In a pharmacokinetic study, oral aprepitant administered as a 3-day regimen (125-mg/80-mg/80-mg) did not influence the pharmacokinetics of docetaxel.

Vinorelbine: In a pharmacokinetic study, oral aprepitant administered as a 3-day regimen (125-mg/80-mg/80-mg) did not influence the pharmacokinetics of vinorelbine to a clinically significant degree.

Oral contraceptives: When oral aprepitant was administered as a 3-day regimen (125-mg/80-mg/80-mg) with ondansetron and dexamethasone, and coadministered with an oral contraceptive containing ethinyl estradiol and norethindrone, the trough concentrations of both ethinyl estradiol and norethindrone were reduced by as much as 64% for 3 weeks post-treatment [see Drug Interactions (7.1)].

CYP2C9 substrates (Warfarin, Tolbutamide):

Warfarin: A single 125-mg dose of oral aprepitant was administered on Day 1 and 80 mg/day on Days 2 and 3 to subjects who were stabilized on chronic warfarin therapy. Although there was no effect of oral aprepitant on the plasma AUC of R(+) or S(-) warfarin determined on Day 3, there was a 34% decrease in S(-) warfarin trough concentration accompanied by a 14% decrease in the prothrombin time (reported as International Normalized Ratio or INR) 5 days after completion of dosing with oral aprepitant [see Drug Interactions (7.1)].

Tolbutamide: Oral aprepitant, when given as 125 mg on Day 1 and 80 mg/day on Days 2 and 3, decreased the AUC of tolbutamide by 23% on Day 4, 28% on Day 8, and 15% on Day 15, when a single dose of tolbutamide 500 mg was administered prior to the administration of the 3-day regimen of oral aprepitant and on Days 4, 8, and 15. This effect was not considered clinically important.

Other Drugs

P-glycoprotein substrates: Aprepitant is unlikely to interact with drugs that are substrates for the P-glycoprotein transporter, as demonstrated by the lack of interaction of oral aprepitant with digoxin in a clinical drug interaction study.

5-HT3 antagonists: In clinical drug interaction studies, aprepitant did not have clinically important effects on the pharmacokinetics of ondansetron, granisetron, or hydrodolasetron (the active metabolite of dolasetron).

Effect of Other Drugs on the Pharmacokinetics of Fosaprepitant/Aprepitant

Rifampin: When a single 375-mg dose of oral aprepitant was administered on Day 9 of a 14-day regimen of 600 mg/day of rifampin, a strong CYP3A4 inducer, the AUC of aprepitant decreased approximately 11-fold and the mean terminal half-life decreased approximately 3-fold [see Drug Interactions (7.2)].

Ketoconazole: When a single 125-mg dose of oral aprepitant was administered on Day 5 of a 10-day regimen of 400 mg/day of ketoconazole, a strong CYP3A4 inhibitor, the AUC of aprepitant increased approximately 5-fold and the mean terminal half-life of aprepitant increased approximately 3-fold [see Drug Interactions (7.2)].

Diltiazem: In a study in 10 patients with mild to moderate hypertension, administration of 100 mg of fosaprepitant as an intravenous infusion with 120 mg of diltiazem, a moderate CYP3A4 inhibitor administered three times daily, resulted in a 1.5-fold increase in the aprepitant AUC and a 1.4-fold increase in the diltiazem AUC.

When fosaprepitant was administered with diltiazem, the mean maximum decrease in diastolic blood pressure was significantly greater than that observed with diltiazem alone [24.3 10.2 mm Hg with fosaprepitant versus 15.6 4.1 mm Hg without fosaprepitant]. The mean maximum decrease in systolic blood pressure was also greater after co-administration of diltiazem with fosaprepitant than administration of diltiazem alone [29.5 7.9 mm Hg with fosaprepitant versus 23.8 4.8 mm Hg without fosaprepitant]. Co-administration of fosaprepitant and diltiazem; however, did not result in any additional clinically significant changes in heart rate or PR interval, beyond those changes observed with diltiazem alone [see Drug Interactions (7.2)].

Paroxetine: Coadministration of once daily doses of oral aprepitant 170 mg, with paroxetine 20 mg once daily, resulted in a decrease in AUC by approximately 25% and Cmax by approximately 20% of both aprepitant and paroxetine. This effect was not considered clinically important.

3 Dosage Forms And Strengths  ⮝

Fosaprepitant for injection: 150 mg fosaprepitant, white to off-white lyophilized powder in single-dose glass vial for reconstitution.

4 Contraindications  ⮝

Fosaprepitant for injection is contraindicated in patients:

• who are hypersensitive to any component of the product. Hypersensitivity reactions including anaphylactic reactions, flushing, erythema, and dyspnea have been reported [see Warnings and Precautions (5.2), Adverse Reactions (6.2)].
• taking pimozide. Inhibition of CYP3A4 by aprepitant, the active moiety, could result in elevated plasma concentrations of this drug, which is a CYP3A4 substrate, potentially causing serious or life-threatening reactions, such as QT prolongation, a known adverse reaction of pimozide [see Warnings and Precautions (5.1)].

Highlights Of Prescribing Information ⮝

These highlights do not include all the information needed to use FOSAPREPITANT FOR INJECTION safely and effectively. See full prescribing information for FOSAPREPITANT FOR INJECTION.
FOSAPREPITANT for injection, for intravenous use
Initial U.S. Approval: 2008

Recent Major Changes ⮝

Warnings and Precautions (5.2) 08/2017

Warnings and Precautions (5.3) 03/2018

Indications And Usage ⮝

Fosaprepitant for injection is a substance P/neurokinin-1 (NK1) receptor antagonist, indicated in adults, in combination with other antiemetic agents, for the prevention of (1):

• acute and delayed nausea and vomiting associated with initial and repeat coursesof highly emetogenic cancer chemotherapy (HEC) including high-dose cisplatin
• delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC).
  Limitations of Use (1)
• Fosaprepitant for injection has not been studied for treatment of established nausea and vomiting.

Dosage And Administration ⮝

• Recommended Dosage (2.1)
• Adults: 150 mg on Day 1.Administer fosaprepitant for injection on Day 1 as an intravenous infusion over 20 to 30 minutes (adults), completing the infusion approximately 30 minutes prior to chemotherapy.
• See Full Prescribing Information for dosages of concomitantantiemetic(s). (2.1)

Dosage Forms And Strengths ⮝

Fosaprepitant for injection: 150 mg fosaprepitant, lyophilized cake or powder in single-dose vial for reconstitution (3)

Contraindications ⮝

• Known hypersensitivity to any component of this drug. (4, 5.2)
• Concurrent use with pimozide. (4)

Warnings And Precautions ⮝

• CYP3A4 Interactions: Fosaprepitant is a weak inhibitor of CYP3A4, and aprepitant, the active moiety, is a substrate, inhibitor, and inducer of CYP3A4; see Full Prescribing Information for recommendations regarding contraindications, risk of adverse reactions, and dosage adjustment of fosaprepitant and concomitant drugs. (4, 5.1, 7.1, 7.2)
• Hypersensitivity Reactions (including anaphylaxis and anaphylactic shock): May occur during or soon after infusion; if symptoms occur, discontinue the drug. Do not reinitiate fosaprepitant if symptoms occur with previous use. (4, 5.2)
• Infusion Site Reactions (including thrombophlebitis, necrosis, and vasculitis): Majority of reactions reported in patients receiving vesicant chemotherapy. Avoid infusion into small veins. Discontinue infusion and administer treatment if a severe reaction develops. (5.3)
• Warfarin (a CYP2C9 substrate): Risk of decreased INR of prothrombin time; monitor INR in 2 week period, particularly at 7 to 10 days, following initiation of fosaprepitant. (5.4, 7.1)
• Hormonal Contraceptives: Efficacy of contraceptives may be reduced during and for 28 days following administration of fosaprepitant. Use effective alternative or back-up methods of contraception. (5.5, 7.1, 8.3)

Adverse Reactions ⮝

Most common adverse reactions in adults ( 2%) are: fatigue, diarrhea, neutropenia, asthenia, anemia, peripheral neuropathy, leukopenia, dyspepsia, urinary tract infection, pain in extremity. (6.1)

To report SUSPECTED ADVERSE REACTIONS, Dr. Reddy s Laboratories Inc., at 1-888-375-3784 at 1-848-200-1906 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.

Drug Interactions ⮝

See Full Prescribing Information for a list of clinicallysignificant drug interactions. (4, 5.1, 5.4, 5.5, 7.1, 7.2)

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

See 17 for PATIENT COUNSELING INFORMATION.

Revised: 9/2019

1 Indications And Usage  ⮝

Fosaprepitant for injection, in combination with other antiemetic agents, is indicated in adults for the prevention of:

acute and delayed nausea and vomiting associated with initial and repeat courses of highly emetogenic cancer chemotherapy (HEC) including high-dose cisplatin.

delayed nausea and vomiting associated with initial and repeat courses of moderately emetogenic cancer chemotherapy (MEC).

Limitations of Use

Fosaprepitant for injection has not been studied for the treatment of established nausea and vomiting.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2 Dosage And Administration  ⮝

2.1 Prevention of Nausea and Vomiting Associated with HEC and MEC in Adult Patients

The recommended dosage of fosaprepitant for injection, dexamethasone, and a 5-HT3 antagonist for the prevention of nausea and vomiting associated with administration of HEC or MEC in adults is shown in Table 1 or Table 2, respectively. Administer fosaprepitant for injection as an intravenous infusion on Day 1 over 20 to 30 minutes, completing the infusion approximately 30 minutes prior to chemotherapy.

Table 1

Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with Highly Emetogenic Cancer Chemotherapy (HEC)

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none	none
Dexamethasone*	12 mg orally	8 mg orally	8 mg orally twice daily	8 mg orally twice daily
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage	none	none	none

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Also administer dexamethasone in the evenings on Days 3 and 4. A 50% dosage reduction of dexamethasone on Days 1 and 2 is recommended to account for a drug interaction with fosaprepitant for injection [see Clinical Pharmacology (12.3)].

Table 2

Recommended Adult Dosing for the Prevention of Nausea and Vomiting Associated with MEC

	Day 1
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy
Dexamethasone*	12 mg orally
5-HT3 antagonist	See selected 5-HT3 antagonist prescribing information for the recommended dosage

*Administer dexamethasone 30 minutes prior to chemotherapy treatment on Day 1. A 50% dosage reduction of dexamethasone is recommended to account for a drug interaction with fosaprepitant for injection [see Clinical Pharmacology (12.3)].

Fosaprepitant for Injection 115 mg (3-Day Dosing Regimen of Fosaprepitant for Injection):

Fosaprepitant for injection 115 mg is administered on Day 1 only as an infusion over 15 minutes initiated 30 minutes prior to chemotherapy. Capsules of aprepitant 80 mg should be administered on Days 2 and 3. Fosaprepitant for injection 115 mg should be administered in conjunction with a corticosteroid and a 5-HT3 antagonist as specified in Table 3. The recommended dosage of dexamethasone with fosaprepitant for injection 115 mg differs from the recommended dosage of dexamethasone with fosaprepitant for injection 150 mg on Days 3 and 4. The package insert for the co-administered 5-HT3 antagonist must be consulted prior to initiation of treatment with fosaprepitant for injection.

Capsules of aprepitant 125 mg may be substituted for fosaprepitant for injection 115 mg on Day 1.

Table 3

Recommended Dosing (3-Day Dosing Regimen of Fosaprepitant for Injection) for the Prevention of Nausea and Vomiting Associated with Highly Emetogenic Cancer Chemotherapy

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant for Injection	115 mg intravenous	80 mg orally	80 mg orally	none
Dexamethasone*	12 mg orally	8 mg orally	8 mg orally once daily	8 mg orally once daily
5-HT3 antagonist	See the package insert for the selected 5-HT3 antagonist for appropriate dosing information.	none	none	none

*Dexamethasone should be administered 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. The dose of dexamethasone accounts for drug interactions.

Prevention of Nausea and Vomiting Associated with Moderately Emetogenic Chemotherapy (MEC)

Fosaprepitant for Injection 115 mg (3-Day Dosing Regimen of Fosaprepitant):

Fosaprepitant for injection 115 mg is administered on Day 1 only as an infusion over 15 minutesinitiated 30 minutes prior to chemotherapy. Capsules of aprepitant 80 mg should be administered on Days 2 and 3. Fosaprepitant for injection 115 mg should be administered in conjunction with a corticosteroid and a 5-HT3 antagonist as specified in Table 4. The recommended dosage of dexamethasone with fosaprepitant for injection 115 mg differs from the recommended dosage of dexamethasone with fosaprepitant for injection 150 mg on Days 3 and 4. The package insert for the co-administered 5-HT3 antagonist must be consulted prior to initiation of treatment with fosaprepitant for injection.

Capsules of aprepitant 125 mg may be substituted for fosaprepitant for injection 115 mg on Day 1.

Table 4

Recommended Dosing (3-Day Dosing Regimen of Fosaprepitant for Injection) for the Prevention of Nausea and Vomiting Associated with Moderately Emetogenic Cancer Chemotherapy

	Day 1	Day 2	Day 3
Fosaprepitant for injection	115 mg intravenous	80 mg orally	80 mg orally
Dexamethasone*	12 mg orally	none	none
5-HT3 antagonist	See the package insert for the selected 5-HT3 antagonist for appropriate dosing information.	none	none

*Dexamethasone should be administered 30 minutes prior to chemotherapy treatment on Day 1. The dose of dexamethasone accounts for drug interactions.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

2.3 Preparation of Fosaprepitant for Injection

Table 5

Preparation Instructions for Fosaprepitant for Injection (115 mg and 150 mg)

	115 mg	150 mg
Step 1	Aseptically inject 5 mL 0.9% Sodium Chloride for Injection, USP into the vial. Assure that normal saline is added to the vial along the vial wall in order to prevent foaming. Swirl the vial gently. Avoid shaking and jetting 0.9% Sodium Chloride Injection, USP into the vial.	Aseptically inject 5 mL 0.9% Sodium Chloride Injection, USP into the vial. Assure that 0.9% Sodium Chloride Injection, USP is added to the vial along the vial wall in order to prevent foaming. Swirl the vial gently. Avoid shaking and jetting 0.9% Sodium Chloride Injection, USP into the vial.
Step 2	Aseptically prepare an infusion bag filled with 110 mL of normal 0.9% Sodium Chloride Injection, USP.	Aseptically prepare an infusion bag filled with 145 mL of 0.9% Sodium Chloride Injection, USP.
Step 3	Aseptically withdraw the entire volume from the vial and transfer it into the infusion bag containing 110 mL of normal 0.9% Sodium Chloride Injection, USP to yield a total volume of 115 mL and a final concentration of 1 mg/1 mL.	Aseptically withdraw the entire volume from the vial and transfer it into the infusion bag containing 145 mL of 0.9% Sodium Chloride Injection, USP to yield a total volume of 150 mL and a final concentration of 1 mg/mL.
Step 4	Gently invert the bag 2 to 3 times.	Gently invert the bag 2 to 3 times.
Step 5		Adults The entire volume of the prepared infusion bag (150 mL) should be administered.
Step 6	Before administration, inspect the bag for particulate matter and discoloration. Discard the bag if particulate and/or discoloration are observed.	Before administration, inspect the bag for particulate matter and discoloration. Discard the bag if particulate and/or discoloration are observed.

Caution: Do not mix or reconstitute fosaprepitant for injection with solutions for which physical and chemical compatibility have not been established. Fosaprepitant for injection is incompatible with any solutions containing divalent cations (e.g., Ca2+, Mg2+), including Lactated Ringer s Solution and Hartmann's Solution.

Storage

The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

3 Dosage Forms And Strengths  ⮝

Fosaprepitant for Injection: 115 mg and 150 mg fosaprepitant, white to off-white lyophilized powder in single-dose glass vials for reconstitution.

4 Contraindications ⮝

Fosaprepitant is contraindicated in patients:

• who are hypersensitive to any component of the product Hypersensitivity reactions includinganaphylactic reactions, flushing, erythema, and dyspnea have been reported [see Warnings and Precautions (5.2), Adverse Reactions (6.2)].
• taking pimozide. Inhibition of CYP3A4 by aprepitant, the active moiety,could result in elevated plasma concentrations of this drug, which is a CYP3A4 substrate, potentially causing serious or life- threatening reactions, such as QT prolongation, a known adverse reaction of pimozide [see Warnings and Precautions(5.1)].

5 Warnings And Precautions ⮝

5.1 Clinically Significant CYP3A4 Drug Interactions

Fosaprepitant, a prodrug of aprepitant, is a weak inhibitor of CYP3A4, and aprepitant is a substrate, inhibitor, and inducer of CYP3A4.

• Use of fosaprepitant with other drugs that are CYP3A4 substrates, may result in increased plasma concentration of the concomitant drug.
  o Use of pimozidewith fosaprepitant is contraindicated due to the risk of significantly increased plasma concentrations of pimozide, potentially resulting in prolongation of the QT interval, a known adverse reactionof pimozide [seeContraindications (4)].
• Use of Fosaprepitant with strong or moderate CYP3A4 inhibitors (e.g., ketoconazole, diltiazem) may increase plasma concentrations of aprepitant and result in an increased risk of adversereactions related to fosaprepitant.
• Use of fosaprepitant with strong CYP3A4 inducers(e.g., rifampin) may result in a reductionin aprepitant plasma concentrations and decreased efficacy of fosaprepitant.See Table 7 and Table 8 for a listing of potentially significant drug interactions [see Drug Interactions (7.1, 7.2)].

5.2 Hypersensitivity Reactions

Serious hypersensitivity reactions, including anaphylaxis and anaphylactic shock, during or soon after infusionof fosaprepitant have occurred. Symptoms including flushing, erythema,dyspnea, hypotension and syncope have been reported [see Adverse Reactions (6.2)].

Monitor patients during and after infusion. If hypersensitivity reactions occur, discontinue the infusion and administer appropriate medicaltherapy. Do not reinitiate fosaprepitant in patients who experience thesesymptoms with previous use [see contraindications (4)].

5.3 Infusion Site Reaction

Infusion site reactions (ISRs) have been reported with the use of fosaprepitant for injection [see Adverse Reactions (6.1)]. The majority of severe ISRs, including thrombophlebitis and vasculitis, were reported with concomitant vesicant (anthracycline-based) chemotherapy administration, particularly when associated with extravasation. Necrosis was also reported in some patients with concomitant vesicant chemotherapy. Most ISRs occurred with the first, second or third exposure to single doses of fosaprepitant for injection and in some cases, reactions persisted for two weeks or longer. Treatment of severe ISRs consisted of medical, and in some cases surgical, intervention.

Avoid infusion of fosaprepitant for injection into small veins or through a butterfly catheter. If a severe ISR develops during infusion, discontinue the infusion and administer appropriate medical treatment.

5.4 Decrease in INR with Concomitant Warfarin

Coadministration of fosaprepitant with warfarin, a CYP2C9 substrate, may result in a clinically significant decrease in the International Normalized Ratio (INR) of prothrombin time [see Clinical Pharmacology (12.3)]. Monitor the INR in patients on chronic warfarin therapy in the 2-week period, particularly at 7 to 10 days, following initiation of fosaprepitant with each chemotherapy cycle [see Drug Interactions (7.1)].

5.5 Risk of Reduced Efficacy of Hormonal Contraceptives

Upon coadministration with fosaprepitant, the efficacy of hormonal contraceptives may be reduced during administration of and for 28 days followingthe last dose of fosaprepitant [see ClinicalPharmacology (12.3)]. Advise patients to use effective alternative or back-up methods of contraception during treatment with fosaprepitant and for 1 month following administration of fosaprepitant [see Drug Interactions (7.1), Use in Specific Populations (8.3)].

6 Adverse Reactions ⮝

The following clinically significant adverse reactions are described elsewhere in the labeling:

• Hypersensitivity Reactions [see Warnings and Precautions (5.2)]
• Infusion Site Reactions [see Warnings and Precautions (5.3)]

6.1 Clinical Trials Experience

Because clinical trials are conducted under widely varying conditions, adverse reaction rates observed in the clinical trials of a drug cannot be directly compared to rates in the clinical trials of another drug and may not reflect the rates observed in clinical practice.

The overall safety of fosaprepitant for injection was evaluated in approximately 1600 adult patients.

Adverse Reactions in Adults for the Prevention of Nausea and Vomiting Associated with MEC

In an active-controlled clinical trial in patients receiving MEC, safety was evaluated in 504 patients receiving a single dose of fosaprepitant for injection in combination with ondansetron and dexamethasone (fosaprepitant dimeglumine regimen) compared to 497 patients receiving ondansetron and dexamethasone alone (standard therapy). The most common adverse reactions are listed in Table 6.

Table 6 Most Common Adverse Reactions in Patients Receiving MEC*

	Fosaprepitant for injection, ondansetron, and dexamethasone (N=504)	Ondansetron and dexamethasone (N=497)
fatigue	15%	13%
diarrhea	13%	11%
neutropenia	8%	7%
asthenia	4%	3%
anemia	3%	2%
peripheral neuropathy	3%	2%
leukopenia	2%	1%
dyspepsia	2%	1%
urinary tract infection	2%	1%
pain in extremity	2%	1%

*Reported in 2% of patients treated with the fosaprepitant dimeglumine regimen and at a greater incidence than standard therapy.

fosaprepitant dimeglumine regimen

Standard therapy

Infusion-site reactions were reported in 2.2% of patients treated with the fosaprepitant dimeglumine regimen compared to 0.6% of patients treated with standard therapy. The infusion-site reactions included: infusion-site pain (1.2%, 0.4%), injection-site irritation (0.2%, 0.0%), vessel puncture-site pain (0.2%, 0.0%), and infusion-site thrombophlebitis (0.6%, 0.0%), reported in the fosaprepitant dimeglumine regimen compared to standard therapy, respectively.

Adverse Reactions in Adults for the Prevention of Nausea and Vomiting Associated with HEC

In an active-controlled clinical study in patients receiving HEC, safety was evaluated for 1143 patients receiving a single dose of fosaprepitant for injection compared to 1169 patientsreceiving the 3-day regimen of oral aprepitant [see Clinical Studies (14.1)]. The safety profile was generallysimilar to that seen in the MEC study with fosaprepitant and prior HEC studies with aprepitant. However,infusion- site reactionsoccurred at a higher incidence in patients in the fosaprepitant group (3.0%) comparedto those in the aprepitant group (0.5%). The following additional infusion-site reactions occurredin HEC study and were not reportedin the MEC study describedabove: infusion-site erythema(0.5%, 0.1%), infusion-site pruritus (0.3%, 0.0%), and infusion-site induration (0.2%, 0.1%), reported in the fosaprepitant group compared to the aprepitant group, respectively.Because fosaprepitant is converted to aprepitant, those adverse reactions associated with aprepitant might also be expected to occur with fosaprepitant for injection. See the full prescribing information for aprepitant capsules for complete safety information regarding studies performed with oral aprepitant.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

6.2 Postmarketing Experience

The following adverse reactions have been identified during post-approval use of fosaprepitant. Because these reactions are reported voluntarily from a population of uncertain size, it is not always possibleto reliably estimatetheir frequency or establish a causal relationship to drug exposure.

Skin and subcutaneous tissue disorders: pruritus, rash, urticaria, Stevens-Johnson syndrome/toxic epidermalnecrolysis. [see Warnings and Precautions (5.2)].

Immune system disorders: hypersensitivity reactions including anaphylaxis and anaphylactic shock [see Contraindications (4), Warnings and Precautions (5.2)].

Nervous system disorders: ifosfamide-induced neurotoxicity reported after fosaprepitant and ifosfamide coadministration.

7 Drug Interactions ⮝

7.1 Effect of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs

When administered intravenously, fosaprepitant, a prodrug of aprepitant, is converted to aprepitant within 30 minutes.Therefore, drug interactions following administration of fosaprepitant for injection are likely to occur with drugs that interact with oral aprepitant.

Fosaprepitant, given as a single 150-mg dose, is a weak inhibitor of CYP3A4, and the weak inhibition of CYP3A4 continues for 2 days after single dose administration. Single dose fosaprepitant does not induce CYP3A4. Aprepitant is a substrate, an inhibitor, and an inducer of CYP3A4. Aprepitant is also an inducerof CYP2C9 [seeClinical Pharmacology (12.3)].

Some substrates of CYP3A4 are contraindicated with fosaprepitant [see Contraindications (4)].

Dosage adjustment of some CYP3A4 and CYP2C9 substrates may be warranted, as shown in Table 7.

Table 7 Effects of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs

CYP3A4 Substrates
Pimozide
Clinical Impact	Increased pimozide exposure
Intervention	Fosaprepitant is contraindicated [see Contraindications (4)].
Benzodiazepines
Clinical Impact	Increased exposure to midazolam or other benzodiazepines metabolized via CYP3A4(alprazolam, triazolam) may increase the risk of adverse reactions [see Clinical Pharmacology (12.3)].
Intervention	Monitor for benzodiazepine-related adverse reactions.
Dexamethasone
Clinical Impact	Increased dexamethasone exposure [see Clinical Pharmacology (12.3)].
Intervention	Reducethe dose of oral dexamethasone by approximately 50% [see Dosageand Administration (2.1)].
Methylprednisolone
Clinical Impact	Increased methylprednisolone exposure [see Clinical Pharmacology (12.3)].
Intervention	Reduce the dose of oral methylprednisolone by approximately 50% on Days 1 and 2 for patients receiving HEC and on Day 1 for patients receiving MEC.Reduce the dose of intravenous methylprednisolone by 25% on Days 1 and 2 for patients receiving HEC and on Day 1 for patients receiving MEC.
Chemotherapeutic agents that are metabolized by CYP3A4
Clinical Impact	Increased exposure of the chemotherapeutic agentmay increase the risk of adverse reactions [see Clinical Pharmacology (12.3)].
Intervention	Vinblastine, vincristine, or ifosfamide or other chemotherapeutic agentsMonitor for chemotherapeutic-related adverse reactions.Etoposide, vinorelbine, paclitaxel, and docetaxelNo dosage adjustment needed.
Hormonal Contraceptives
Clinical Impact	Decreased hormonal exposure duringadministration of and for 28 days after administration of the last dose of fosaprepitant [see Warnings and Precautions (5.5), Use in Specific Populations (8.3), and Clinical Pharmacology (12.3)].
Intervention	Effective alternative or back-up methods of contraception (such as condoms and spermicides) should be used during treatment with fosaprepitant and for 1 month following administration of fosaprepitant.
Examples	birth control pills, skin patches, implants, and certain IUDs
CYP2C9 Substrates
Warfarin
Clinical Impact	Decreased warfarin exposure and prolongation of prothrombin time (INR) [see Warnings and Precautions (5.4), Clinical Pharmacology (12.3)].
Intervention	In patients on chronic warfarin therapy, monitor the prothrombin time(INR) in the2-week period, particularly at 7 to 10 days, following administration of fosaprepitant with each chemotherapy cycle.
Other
5-HT3 Antagonists
Clinical Impact	No change in the exposure of the 5-HT3 antagonist [see Clinical Pharmacology (12.3)].
Intervention	No dosage adjustment needed
Examples	ondansetron, granisetron, dolasetron

7.2 Effect of Other Drugs on the Pharmacokinetics of Fosaprepitant/Aprepitant

Aprepitant is a CYP3A4 substrate [see Clinical Pharmacology (12.3)]. Co-administration of fosaprepitant with drugs that are inhibitors or inducers of CYP3A4 may result in increased or decreased plasma concentrations of aprepitant, respectively, as shown in Table 8.

Table 8 Effects of Other Drugs on Pharmacokinetics of Fosaprepitant/Aprepitant

Moderate to Strong CYP3A4 Inhibitors
Clinical Impact	Significantly increased exposure of aprepitant may increase the risk of adverse reactions associated with fosaprepitant [see Adverse Reactions (6.1) and Clinical Pharmacology (12.3)].
Intervention	Avoid concomitant use of fosaprepitant
Examples	Moderate inhibitor: diltiazemStrong inhibitors:ketoconazole, itraconazole, nefazodone, troleandomycin, clarithromycin, ritonavir, nelfinavir
Strong CYP3A4Inducers
Clinical Impact	Substantially decreased exposure of aprepitant in patients chronically taking a strong CYP3A4 inducer may decrease the efficacy of fosaprepitant [see Clinical Pharmacology (12.3)].
Intervention	Avoid concomitant use of fosaprepitant.
Examples	rifampin, carbamazepine, phenytoin

8 Use In Specific Populations  ⮝

8.1 Pregnancy

Risk Summary

There are insufficient data on use of fosaprepitant for injection in pregnant women to inform a drug associated risk. In animal reproduction studies, no adverse developmental effects were observed in rats or rabbits exposed during the period of organogenesis to systemic drug levels (AUC) approximately equivalent to the exposure at the recommended human dose (RHD) of 150 mg [see Data].

The estimated background risk of major birth defects and miscarriage for the indicated populations is unknown. In the U.S. general population, the estimated background risk of major birth defects and miscarriage in clinically recognized pregnancies is 2% to 4% and 15% to 20%, respectively.

Data

Animal Data

In embryofetal development studies in rats and rabbits, aprepitant was administered during the period of organogenesis at oral doses up to 1,000 mg/kg twice daily (rats) and up to the maximum tolerated dose of 25 mg/kg/day (rabbits). No embryofetal lethality or malformations were observed at any dose level in either species. The exposures (AUC) in pregnant rats at 1,000 mg/kg twice daily and in pregnant rabbits at 25 mg/kg/day were approximately equivalent to the exposure at the RHD of 150 mg. Aprepitant crosses the placenta in rats and rabbits.

8.2 Lactation

Risk Summary

Lactation studies have not been conducted to assess the presence of aprepitant in human milk, the effects on the breastfed infant, or the effects on milk production. Aprepitant is present in rat milk. The developmental and health benefits of breastfeeding should be considered along with the mother s clinical need for fosaprepitant for injection and any potential adverse effects on the breastfed infant from fosaprepitant for injection or from the underlying maternal condition.

8.3 Females and Males of Reproductive Potential

Contraception

Upon administration of fosaprepitant for injection, the efficacy of hormonal contraceptives may be reduced. Advise females of reproductive potential using hormonal contraceptives to use an effective alternative or back-up non-hormonal contraceptive (such as condoms and spermicides) during treatment with fosaprepitant for injection and for 1 month following the last dose [see Drug Interactions (7.1), Clinical Pharmacology (12.3)].

8.4 Pediatric Use

The safety and effectiveness of fosaprepitant for injection for the prevention of nausea and vomiting associated with HEC or MEC have not been established in patients less than 6 months of age.

Juvenile Animal Toxicity Data

In juvenile dogs treated with fosaprepitant, changes in reproductive organs were observed. In juvenile rats treated with aprepitant, slight changes in sexual maturation were observed without an effect on reproduction. No effects on neurobehavior, sensory and motor function, or learning and memory were observed in rats.

In a toxicity study in juvenile dogs treated with fosaprepitant from postnatal day 14 (equivalent to a newborn human) to day 42 (approximately equivalent to a 2 year old human), decreased testicular weight and Leydig cell size were seen in the males at 6 mg/kg/day and increased uterine weight, hypertrophy of the uterus and cervix, and edema of vaginal tissues were seen in females from 4 mg/kg/day. A study was also conducted in young rats to evaluate the effects of aprepitant on growth and on neurobehavioral and sexual development. Rats were treated at oral doses up to the maximum feasible dose of 1000 mg/kg twice daily from the early postnatal period (Postnatal Day 10 (equivalent to a newborn human) through Postnatal Day 58 (approximately equivalent to a 15 year old human)). Slight changes in the onset of sexual maturation were observed in female and male rats; however, there were no effects on mating, fertility, embryonic-fetal survival, or histomorphology of the reproductive organs. There were no effects in neurobehavioral tests of sensory function, motor function, and learning and memory.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

8.5 Geriatric Use

Of the 1,649 adult cancer patients treated with intravenous fosaprepitant for injection in HEC and MEC clinical studies, 27% were aged 65 and over, while 5% were aged 75 and over. Other reported clinical experience with fosaprepitant for injection has not identified differences in responses between elderly and younger patients. In general, use caution when dosing elderly patients as they have a greater frequency of decreased hepatic, renal or cardiac function and concomitant disease or other drug therapy [see Clinical Pharmacology (12.3)].

8.6 Patients with Hepatic Impairment

The pharmacokinetics of aprepitant in patients with mild and moderate hepatic impairment were similar to those of healthy subjects with normal hepatic function. No dosage adjustment is necessary for patients with mild to moderate hepatic impairment (Child-Pugh score 5 to 9). There are no clinical or pharmacokinetic data in patients with severe hepatic impairment (Child-Pugh score greater than 9). Therefore, additional monitoring for adverse reactions in these patients may be warranted when fosaprepitant for injection is administered [see Clinical Pharmacology (12.3)].

10 Overdosage ⮝

There is no specificinformation on the treatment of overdosage with fosaprepitant or aprepitant.In the event of overdose, fosaprepitant should be discontinued and general supportive treatment and monitoring should be provided. Because of the antiemetic activity of fosaprepitant, drug-induced emesis may not be effective in cases of fosaprepitant overdosage.Aprepitant is not removedby hemodialysis.

11 Description  ⮝

Fosaprepitant for Injection is a sterile, lyophilized formulation containing fosaprepitant dimeglumine, a prodrug of aprepitant, a substance P/neurokinin-1 (NK1) receptor antagonist, an antiemetic agent, chemically described as 1-Deoxy-1-(methylamino)-D-glucitol[3-[[(2R,3S)-2-[(1R)-1-[3,5-bis(trifluoromethyl)phenyl]ethoxy]-3-(4-fluorophenyl)-4-morpholinyl]methyl]-2,5-dihydro-5-oxo-1H-1,2,4-triazol-1-yl]phosphonate (2:1) (salt).

Its empirical formula is C23H22F7N4O6P 2(C7H17NO5) and its structural formula is:

Fosaprepitant dimeglumine is a white to off-white amorphous powder with a molecular weight of 1,004.83. It is freely soluble in water.

Each vial of fosaprepitant for injection for administration as an intravenous infusion contains

115 mg of fosaprepitant (equivalent to 188 mg of fosaprepitant dimeglumine) and the following inactive ingredients: edetate disodium (14.4 mg), polysorbate 80 (57.5 mg), lactose anhydrous (287.5 mg), sodium hydroxide and/or hydrochloric acid (for pH adjustment).

Each vial of fosaprepitant for injection for administration as an intravenous infusion contains

150 mg of fosaprepitant (equivalent to 245.3 mg of fosaprepitant dimeglumine) and the following inactive ingredients: edetate disodium (18.8 mg), polysorbate 80 (75 mg), lactose anhydrous (375 mg), sodium hydroxide and/or hydrochloric acid (for pH adjustment).

12 Clinical Pharmacology ⮝

12.1 Mechanism of Action

Fosaprepitant is a prodrugof aprepitant and accordingly, its antiemetic effectsare attributable to aprepitant.Aprepitant is a selectivehigh-affinity antagonist of human substanceP/neurokinin 1(NK1) receptors. Aprepitant has little or no affinity for serotonin (5-HT3), dopamine, and corticosteroid receptors, the targets of existing therapiesfor chemotherapy-induced nausea and vomiting(CINV). Aprepitant has been shown in animal models to inhibit emesis induced by cytotoxicchemotherapeutic agents, such as cisplatin, via central actions. Animal and human Positron Emission Tomography (PET) studies with aprepitant have shown that it crosses the blood brain barrier and occupies brain NK1 receptors. Animal and humanstudies have shown that aprepitant augmentsthe antiemetic activityof the 5-HT3 -receptor antagonist ondansetron and the corticosteroid dexamethasone and inhibitsboth the acuteand delayed phasesof cisplatin-induced emesis.

12.2 Pharmacodynamics

Cardiac Electrophysiology

In a randomized, double-blind, positive-controlled, thorough QTc study, a single 200-mgdose of fosaprepitant (approximately 1.3 times the recommended dose) had no effect on the QTc interval.

12.3 Pharmacokinetics

Aprepitant after Fosaprepitant Administration

Following administration of a single intravenous 150-mg dose of fosaprepitant, a prodrug of aprepitant administered as a 20-minute infusion to healthy subjects, the mean AUC0- of aprepitant was 37.4 ( 14.8) mcg hr/mL and the mean maximal aprepitant concentration (Cmax) was 4.2 ( 1.2) mcg/mL. Plasma concentrations of fosaprepitant are below the limits of quantification (10 ng/mL) within 30 minutes of the completion of infusion.

Distribution

Aprepitant is greater than 95% bound to plasma proteins. The mean apparent volume of distribution at steady state(Vdss ) was approximately 70 L in humans.Aprepitant crossesthe blood brainbarrier in humans[see Clinical Pharmacology (12.1)].

Elimination

Metabolism

Fosaprepitant is converted to aprepitant in in vitro incubations with human liver preparations and in S9 preparations from multiple other human tissues including kidney, lung and ileum. Thus, it appears that the conversion of fosaprepitant to aprepitant can occur in multiple extrahepatic tissues in addition to the liver.Aprepitant undergoes extensive metabolism. In vitro studies using human liver microsomes indicate that aprepitant is metabolized primarily by CYP3A4 with minor metabolism by CYP1A2 and CYP2C19. Metabolism is largely via oxidation at the morpholine ring and its side chains. No metabolism by CYP2D6, CYP2C9, or CYP2E1 was detected.In healthy young adults,aprepitant accounts for approximately 24% of the radioactivity in plasma over 72 hours following a single oral 300-mg dose of [14C]-aprepitant, indicating a substantial presence of metabolites in the plasma. Seven metabolites of aprepitant, which are only weakly active, havebeen identified in human plasma.

Excretion

Following administration of a singleintravenous 100-mg dose of [14C]-fosaprepitant to healthy subjects, 57% of the radioactivity was recovered in urine and 45% in feces.Aprepitant is eliminated primarilyby metabolism; aprepitant is not renally excreted. The apparent terminal half-liferanged from approximately 9 to 13 hours.

Specific Populations

Age:Geriatric Population

Following oral administration of a single 125-mg dose of aprepitant on Day 1 and 80 mg once daily on Days 2 through 5, the AUC0-24hr of aprepitant was 21% higher on Day 1 and 36% higher on Day 5 in elderly (65 years and older) relativeto younger adults.The Cmax was 10% higher on Day 1 and 24% higher on Day 5 in elderly relative to younger adults. These differences are not considered clinically meaningful [see Use in Specific Populations (8.5)].

Sex

Following oral administration of a single dose of aprepitant, ranging from 40 mg to 375 mg, the AUC0-24hr and Cmax are 9% and 17% higher in females as compared with males. The half-life of aprepitantis approximately 25% lower in femalesas compared with males and Tmax occursat approximately the same time. These differences are not considered clinically meaningful.

Race/Ethnicity

Following oral administration of a single dose of aprepitant, ranging from 40 mg to 375 mg, the AUC0-24hr and Cmax are approximately 27% and 19% higher in Hispanicsas compared with Caucasians. The AUC0-24hr and Cmax were 74% and 47% higher in Asians as compared to Caucasians. There was no difference in AUC0-24hr or Cmax between Caucasians and Blacks.These differences are not considered clinicallymeaningful.

Renal Impairment

A single 240-mg oral dose of aprepitant was administered to patients with severe renal impairment (creatinine clearance less than 30 mL/min/1.73 m2 as measured by 24-hour urinary creatinine clearance) and to patients with end stage renal disease(ESRD) requiring hemodialysis.

In patients with severe renal impairment, the AUC0- of total aprepitant (unbound and protein bound) decreased by 21% and Cmax decreased by 32%, relative to healthy subjects (creatinine clearance greater than 80 mL/min estimated by Cockcroft-Gault method). In patients with ESRD undergoing hemodialysis, the AUC0- of total aprepitant decreased by 42% and Cmax decreased by 32%. Due to Hemodialysis conducted4 or 48 hours after dosing had no significant effect on the pharmacokineticsof aprepitant; less than 0.2% of the dose was recovered in the dialysate.

Hepatic Impairment

Fosaprepitant is metabolized in various extrahepatic tissues; therefore hepaticimpairment is not expected to alter the conversion of fosaprepitant to aprepitant.Following administration of a single 125-mg oral dose of aprepitant on Day 1 and 80 mg once daily on Days 2 and 3 to patients with mild hepatic impairment (Child-Pugh score 5 to 6), the AUC0-24hr of aprepitant was 11% loweron Day 1 and 36% lower on Day 3, as comparedwith healthy subjectsgiven the same regimen. In patientswith moderate hepatic impairment (Child-Pugh score 7 to 9), the AUC0-24hr of aprepitant was 10% higher on Day 1 and 18% higher on Day 3, as compared with healthy subjects given the same regimen. These differences in AUC0-24hr are not considered clinically meaningful. There are no clinical or pharmacokinetic data in patientswith severe hepaticimpairment (Child-Pugh scoregreater than 9) [see Use in Specific Populations (8.6)]

Body Mass Index (BMI)

For every 5 kg/m2 increase in BMI, AUC0-24hr and Cmax of aprepitant decrease by 9% and 10%. BMI of subjects in the analysis ranged from 18 kg/m2 to 36 kg/m2. This change is not considered clinically meaningful.

Pediatric use information is approved for Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s Emend (fosaprepitant) for injection. However, due to Merck Sharp & Dohme Corp., a subsidiary of Merck & Co., Inc. s marketing exclusivity rights, this drug product is not labeled with that pediatric information.

Drug Interactions Studies

Fosaprepitant, given as a single 150-mg dose, is a weak inhibitor of CYP3A4, with no evidence of inhibition or induction of CYP3A4 observed on Day 4. The weak inhibition of CYP3A4 continues for 2 days after single dose administration of fosaprepitant. Aprepitant is a substrate, an inhibitor, and an inducer of CYP3A4. Aprepitant is also an inducer of CYP2C9.Fosaprepitant or aprepitant is unlikely to interact with drugs that are substrates for the P glycoprotein transporter.

Effects of Fosaprepitant/Aprepitant on the Pharmacokinetics of Other Drugs

CYP3A4 Substrates

Midazolam:

Fosaprepitant 150 mg administered as a single intravenous dose on Day 1 increased the AUC0- of midazolam by approximately 1.8-fold on Day 1 and had no effect on Day 4 when midazolam was coadministered as a singleoral dose of 2 mg on Days 1 and 4. [see Drug interactions (7.1)].

Corticosteroids:

Dexamethasone: Fosaprepitant administered as a single 150 mg intravenous dose on Day 1 increased the AUC0-24hr of dexamethasone, administered as a single 8-mg oral dose on Days 1, 2, and 3, by approximately 2-foldon Days 1 and 2 [see Dosageand Administration (2.1),Drug Interactions (7.1)].

Methylprednisolone: When oral aprepitant as a 3-day regimen (125-mg/80-mg/80-mg) was administered with intravenous methylprednisolone 125 mg on Day 1 and oral methylprednisolone 40 mg on Days 2 and 3, the AUC of methylprednisolone was increased by 1.34-fold on Day 1 and by 2.5-fold on Day 3 [see Drug Interactions (7.1)].Chemotherapeutic agents:Docetaxel: In a pharmacokinetic study, oral aprepitant administered as a 3-day regimen (125 mg/80-mg/80-mg) did not influence the pharmacokinetics of docetaxel.

Vinorelbine:

In a pharmacokinetic study,oral aprepitant administered as a 3-day regimen (125 mg/80-mg/80-mg) did not influence the pharmacokinetics of vinorelbine to a clinically significant degree.Oral contraceptives: When oral aprepitant was administered as a 3-day regimen (125-mg/80-mg/80 mg) with ondansetron and dexamethasone, and coadministered with an oral contraceptive containing ethinyl estradiol and norethindrone, the trough concentrations of both ethinyl estradiol and norethindrone were reduced by as much as 64% for 3 weeks post-treatment [see Drug Interactions (7.1)].

CYP2C9 substrates (Warfarin, Tolbutamide):Warfarin: A single125-mg dose of oral aprepitant was administered on Day 1 and 80 mg/day on Days 2 and 3 to subjects who were stabilized on chronic warfarin therapy. Although there was no effect of oral aprepitant on the plasma AUC of R(+) or S(-) warfarindetermined on Day 3, there was a 34% decrease in S(-) warfarin trough concentration accompanied by a 14% decrease in the prothrombin time (reported as International Normalized Ratio or INR) 5 days after completion of dosing with oral aprepitant [see Drug Interactions (7.1)].

Tolbutamide:

Oral aprepitant, when given as 125 mg on Day 1 and 80 mg/day on Days 2 and 3, decreased the AUC of tolbutamide by 23% on Day 4, 28% on Day 8, and 15% on Day 15, when a single dose of tolbutamide 500 mg was administered prior to the administration of the 3-day regimen of oral aprepitant and on Days 4, 8, and 15. This effectwas not considered clinically important.

Other Drugs

P-glycoprotein substrates: Aprepitant is unlikely to interact with drugs that are substrates for the P glycoprotein transporter, as demonstrated by the lack of interaction of oral aprepitant with digoxin in a clinical drug interaction study.

5-HT3 antagonists: In clinicaldrug interaction studies,aprepitant did not have clinically important effects on the pharmacokinetics of ondansetron, granisetron, or hydrodolasetron (the active metabolite of dolasetron).

Effect of Other Drugson the Pharmacokinetics of Fosaprepitant/Aprepitant

Rifampin:

When a single 375-mgdose of oral aprepitant was administered on Day 9 of a 14-day regimen of 600 mg/day of rifampin, a strong CYP3A4 inducer, the AUC of aprepitant decreased approximately 11-fold and the mean terminal half-life decreased approximately 3-fold [see Drug Interactions (7.2)]..

Ketoconazole:

When a single 125-mg dose of oral aprepitant was administered on Day 5 of a 10-day regimen of 400 mg/day of ketoconazole, a strong CYP3A4 inhibitor, the AUC of aprepitant increased approximately 5-foldand the mean terminal half-life of aprepitant increased approximately 3-fold [see Drug Interactions (7.2)].

Diltiazem: In a study in 10 patients with mild to moderate hypertension, administration of 100 mg of fosaprepitant as an intravenous infusion with 120 mg of diltiazem, a moderate CYP3A4 inhibitor administered three times daily, resulted in a 1.5-fold increase in the aprepitant AUC and a1.4-fold increase in the diltiazem AUC.

When fosaprepitant was administered with diltiazem, the mean maximum decrease in diastolic blood pressure was significantly greater than that observed with diltiazem alone [24.3 10.2 mm Hg with fosaprepitant versus 15.6 4.1 mm Hg without fosaprepitant]. The mean maximumdecrease in systolic blood pressure was also greater after co-administration of diltiazem with fosaprepitant than administration of diltiazem alone [29.5 7.9 mm Hg with fosaprepitant versus 23.8 4.8 mm Hg without fosaprepitant]. Co-administration of fosaprepitant and diltiazem; however, did not result in any additional clinically significant changes in heart rate or PR interval, beyond those changes observed with diltiazem alone [see Drug Interactions (7.2)].

Paroxetine: Coadministration of once daily doses of oral aprepitant 170 mg, with paroxetine 20 mg once daily, resulted in a decrease in AUC by approximately 25% and Cmax by approximately 20% of both aprepitant and paroxetine. This effect was not considered clinically important.

13 Nonclinical Toxicology  ⮝

13.1 Carcinogenesis, Mutagenesis, Impairment of Fertility

Carcinogenesis

Carcinogenicity studies were conducted in Sprague-Dawley rats and in CD-1 mice for 2 years. In the rat carcinogenicity studies, animals were treated with oral doses ranging from 0.05 to 1,000 mg/kg twice daily. The highest dose produced systemic exposures to aprepitant approximately equivalent to (female rats) or less than (male rats) the adult human exposure at the RHD of 150 mg. Treatment with aprepitant at doses of 5 to 1,000 mg/kg twice daily caused an increase in the incidences of thyroid follicular cell adenomas and carcinomas in male rats. In female rats, it produced hepatocellular adenomas at 5 to 1,000 mg/kg twice daily and hepatocellular carcinomas and thyroid follicular cell adenomas at 125 to 1,000 mg/kg twice daily. In the mouse carcinogenicity studies, the animals were treated with oral doses ranging from 2.5 to 2,000 mg/kg/day. The highest dose produced a systemic exposure approximately 2 times the adult human exposure at the RHD of 150 mg. Treatment with aprepitant produced skin fibrosarcomas at 125 and 500 mg/kg/day doses in male mice. Carcinogenicity studies were not conducted with fosaprepitant.

Mutagenesis

Aprepitant and fosaprepitant were not genotoxic in the Ames test, the human lymphoblastoid cell (TK6) mutagenesis test, the rat hepatocyte DNA strand break test, the Chinese hamster ovary (CHO) cell chromosome aberration test and the mouse micronucleus test.

Impairment of Fertility

Fosaprepitant, when administered intravenously, is rapidly converted to aprepitant. In the fertility studies conducted with fosaprepitant and aprepitant, the highest systemic exposures to aprepitant were obtained following oral administration of aprepitant. Oral aprepitant did not affect the fertility or general reproductive performance of male or female rats at doses up to the maximum feasible dose of 1,000 mg/kg twice daily (providing exposure in male rats lower than the exposure at the recommended adult human dose of 150 mg and exposure in female rats approximately equivalent to the adult human exposure).

14 Clinical Studies  ⮝

14.1 Prevention of Nausea and Vomiting Associated with HEC in Adults

Fosaprepitant for Injection 115 mg (3-Day Dosing Regimen of Fosaprepitant For Injection)

Fosaprepitant 115 mg intravenous infused over 15 minutes can be substituted for 125 mg oral aprepitant on Day 1 of a 3-day regimen. Efficacy studies with the 3-day regimen were conducted with oral aprepitant.

In 2 multicenter, randomized, parallel, double-blind, controlled clinical studies, the aprepitant regimen (see Table 11) was compared with standard therapy in patients receiving a chemotherapy regimen that included cisplatin >50 mg/m2 (mean cisplatin dose = 80.2 mg/m2).

Of the 550 patients who were randomized to receive the aprepitant regimen, 42% were women, 58% men, 59% White, 3% Asian, 5% Black, 12% Hispanic American, and 21% Multi-Racial. The aprepitant-treated patients in these clinical studies ranged from 14 to 84 years of age, with a mean age of 56 years. 170 patients were 65 years or older, with 29 patients being 75 years or older.

Patients (N = 1,105) were randomized to either the aprepitant regimen (N = 550) or standard therapy (N = 555). The treatment regimens are defined in Table 11.

Table 11

Treatment Regimens Highly Emetogenic Chemotherapy Trials*

	Day 1	Day 2	Day 3	Day 4
CINV Aprepitant Regimen
Aprepitant	125 mg orally	80 mg orally	80 mg orally	None
Dexamethasone	12 mg orally	8 mg orally	8 mg orally	8 mg orally
5-HT3 antagonist	See package insert	none	none	none
CINV Standard Therapy
Dexamethasone	20 mg orally	8 mg orally twice daily	8 mg orally twice daily	8 mg orally twice daily
5-HT3 antagonist	See package insert	none	none	none

*Aprepitant placebo and dexamethasone placebo were used to maintain blinding.

Ondansetron 32 mg I.V. was used in the clinical trials of aprepitant. Although this dose was used in clinical trials, this is no longer the currently recommended dose. Refer to the ondansetron package insert for the current dosing.

During these studies, 95% of the patients in the aprepitant group received a concomitant chemotherapeutic agent in addition to protocol-mandated cisplatin. The most common chemotherapeutic agents and the number of aprepitant patients exposed follow: etoposide (106), fluorouracil (100), gemcitabine (89), vinorelbine (82), paclitaxel (52), cyclophosphamide (50), doxorubicin (38), docetaxel (11).

The antiemetic activity of oral aprepitant was evaluated during the acute phase (0 to 24 hours post-cisplatin treatment), the delayed phase (25 to 120 hours post-cisplatin treatment) and overall (0 to 120 hours post-cisplatin treatment) in Cycle 1. Efficacy was based on evaluation of the following endpoints in which emetic episodes included vomiting, retching, or dry heaves:

Primary endpoint:

complete response (defined as no emetic episodes and no use of rescue therapy as recorded in patient diaries)

Other prespecified endpoints:

complete protection (defined as no emetic episodes, no use of rescue therapy, and a maximum nausea visual analogue scale [VAS] score <25 mm on a 0 to 100 mm scale)

no emesis (defined as no emetic episodes regardless of use of rescue therapy)

no nausea (maximum VAS <5 mm on a 0 to 100 mm scale)

no significant nausea (maximum VAS <25 mm on a 0 to 100 mm scale)

A summary of the key study results from each individual study analysis is shown in Table 12 and in Table 13.

Table 12

Percent of Patients Receiving Highly Emetogenic Chemotherapy Responding by Treatment Group and Phase for Study 1 Cycle 1

ENDPOINTS	Aprepitant Regimen (N = 260) %	Standard Therapy (N = 261) %	p-Value
PRIMARY ENDPOINT
Complete Response
Overall	73	52	<0.001
OTHER PRESPECIFIED ENDPOINTS
Complete Response
Acute phase Delayed phase||	89 75	78 56	<0.001 <0.001
Complete Protection
Overall Acute phase Delayed phase	63 85 66	49 75 52	0.001 NS* <0.001
No Emesis
Overall Acute phase Delayed phase	78 90 81	55 79 59	<0.001 0.001 <0.001
No Nausea
Overall Delayed phase	48 51	44 48	NS** NS**
No Significant Nausea
Overall Delayed phase	73 75	66 69	NS** NS**

N: Number of patients (older than 18 years of age) who received cisplatin, study drug, and had

at least one post-treatment efficacy evaluation.

Overall: 0 to 120 hours post-cisplatin treatment.

Acute phase: 0 to 24 hours post-cisplatin treatment.

||Delayed phase: 25 to 120 hours post-cisplatin treatment.

*Not statistically significant when adjusted for multiple comparisons.

**Not statistically significant.

Visual analogue scale (VAS) score range: 0 mm = no nausea; 100 mm = nausea as bad as it could be.

Table 13

Percent of Patients Receiving Highly Emetogenic Chemotherapy Responding by Treatment Group and Phase for Study 2 Cycle 1

ENDPOINTS	Aprepitant Regimen (N = 261) %	Standard Therapy (N = 263) %	p-Value
PRIMARY ENDPOINT
Complete Response
Overall	63	43	<0.001
OTHER PRESPECIFIED ENDPOINTS
Complete Response
Acute phase Delayed phase||	83 68	68 47	<0.001 <0.001
Complete Protection
Overall Acute phase Delayed phase	56 80 61	41 65 44	<0.001 <0.001 <0.001
No Emesis
Overall Acute phase Delayed phase	66 84 72	44 69 48	<0.001 <0.001 <0.001
No Nausea
Overall	49	39	NS*
Delayed phase	53	40	NS*
No Significant Nausea
Overall	71	64	NS**
Delayed phase	73	65	NS**

N: Number of patients (older than 18 years of age) who received cisplatin, study drug, and had at least one post-treatment efficacy evaluation.

Overall: 0 to 120 hours post-cisplatin treatment.

Acute phase: 0 to 24 hours post-cisplatin treatment.

||Delayed phase: 25 to 120 hours post-cisplatin treatment.

*Not statistically significant when adjusted for multiple comparisons.

**Not statistically significant.

Visual analogue scale (VAS) score range: 0 mm = no nausea; 100 mm = nausea as bad as it could be.

In both studies, a statistically significantly higher proportion of patients (both p<0.001) receiving the aprepitant regimen in Cycle 1 had a complete response in the overall phase (primary endpoint), compared with patients receiving standard therapy. A statistically significant difference in complete response in favor of the aprepitant regimen was also observed when the acute phase and the delayed phase were analyzed separately.

In both studies, the estimated time to first emesis after initiation of cisplatin treatment was longer with the aprepitant regimen, and the incidence of first emesis was reduced in the aprepitant regimen group compared with standard therapy group as depicted in the Kaplan-Meier curves in Figure 2.

Figure 2: Percent of Patients Receiving Highly Emetogenic Chemotherapy Who Remain Emesis Free Over Time Cycle 1

p-Value <0.001 based on a log rank test for Study 1 and Study 2; nominal p-values not adjusted for multiplicity.

Additional Patient-Reported Outcomes: The impact of nausea and vomiting on patients daily lives was assessed in Cycle 1 of both phase 3 studies using the Functional Living Index Emesis (FLIE), a validated nausea- and vomiting-specific patient-reported outcome measure. Minimal or no impact of nausea and vomiting on patients daily lives is defined as a FLIE total score >108. In each of the 2 studies, a higher proportion of patients receiving the aprepitant regimen reported minimal or no impact of nausea and vomiting on daily life (Study 1: 74% versus 64%; Study 2: 75% versus 64%).

Multiple-Cycle Extension: In the same 2 clinical studies, patients continued into the Multiple-Cycle extension for up to 5 additional cycles of chemotherapy. The proportion of patients with no emesis and no significant nausea by treatment group at each cycle is depicted in Figure 3.

Figure 3: Proportion of Patients Receiving Highly Emetogenic Chemotherapy with No Emesis and No Significant Nausea by Treatment Group and Cycle

Fosaprepitant for Injection 150 mg

In a randomized, parallel, double-blind, active-controlled study, fosaprepitant for injection 150 mg as a single intravenous infusion (N=1,147) was compared to a 3-day oral aprepitant regimen (N=1,175) in patients receiving a HEC regimen that included cisplatin ( 70 mg/m2). All patients in both groups received dexamethasone and ondansetron (see Table 14). Patient demographics were similar between the two treatment groups. Of the total 2,322 patients, 63% were men, 56% White, 26% Asian, 3% American Indian/Alaska Native, 2% Black, 13% Multi-Racial, and 33% Hispanic/Latino ethnicity. Patient ages ranged from 19 to 86 years of age, with a mean age of 56 years. Other concomitant chemotherapy agents commonly administered were fluorouracil (17%), gemcitabine (16%), paclitaxel (15%), and etoposide (12%).

Table 14

Treatment Regimens in Adult HEC Trial*

	Day 1	Day 2	Day 3	Day 4
Fosaprepitant Regimen
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none	none
Oral dexamethasone	12 mg	8 mg	8 mg twice daily	8 mg twice daily
Ondansetron	Ondansetron	none	none	none
Oral Aprepitant Regimen
Aprepitant capsules	125 mg	80 mg	80 mg	none
Oral dexamethasone	12 mg	8 mg	8 mg	8 mg
Ondansetron	Ondansetron	none	none	none

*Fosaprepitant for injection placebo, aprepitant capsules placebo and dexamethasone placebo (in the evenings on Days 3 and 4) were used to maintain blinding.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. Dexamethasone was also administered in the evenings on Days 3 and 4. The 12 mg dose of dexamethasone on Day 1 and the 8 mg once daily dose on Day 2 reflects a dosage adjustment to account for a drug interaction with the fosaprepitant for injection regimen [see Clinical Pharmacology (12.3)].

Ondansetron 32 mg intravenous was used in the clinical trials of fosaprepitant. Although this dose was used in clinical trials, this is no longer the currently recommended dose. Refer to the ondansetron prescribing information for the current recommended dose.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1 and in the morning on Days 2 through 4. The 12 mg dose of dexamethasone on Day 1 and the 8 mg once daily dose on Days 2 through 4 reflects a dosage adjustment to account for a drug interaction with the oral aprepitant regimen [see Clinical Pharmacology (12.3)].

The efficacy of fosaprepitant for injection was evaluated based on the primary and secondary endpoints listed in Table 15 and was shown to be non-inferior to that of the 3-day oral aprepitant regimen with regard to complete response in each of the evaluated phases. The pre-specified non-inferiority margin for complete response in the overall phase was 7%. The pre-specified non-inferiority margin for complete response in the delayed phase was 7.3%. The pre-specified non-inferiority margin for no vomiting in the overall phase was 8.2%.

Table 15

Percent of Adult Patients Receiving Highly Emetogenic Chemotherapy Responding by Treatment Group and Phase Cycle 1

ENDPOINTS	Fosaprepitant for Injection Regimen (N = 1,106)* %	Oral Aprepitant Regimen (N = 1,134)* %	Difference (95% CI)
PRIMARY ENDPOINT
Complete Response
Overall	71.9	72.3	-0.4 (-4.1, 3.3)
SECONDARY ENDPOINTS
Complete Response
Delayed phase	74.3	74.2	0.1 (-3.5, 3.7)
No Vomiting
Overall	72.9	74.6	-1.7 (-5.3, 2)

*N: Number of patients included in the primary analysis of complete response.

Difference and Confidence interval (CI) were calculated using the method proposed by Miettinen and

Nurminen and adjusted for Gender.

Complete Response = no vomiting and no use of rescue therapy.

Overall = 0 to 120 hours post-initiation of cisplatin chemotherapy.

Delayed phase = 25 to 120 hours post-initiation of cisplatin chemotherapy.

14.2 Prevention of Nausea and Vomiting Associated with MEC in Adults

In a randomized, parallel, double-blind, active comparator-controlled study, fosaprepitant for injection 150 mg as a single intravenous infusion (N=502) in combination with ondansetron and dexamethasone (fosaprepitant regimen) was compared with ondansetron and dexamethasone alone (standard therapy) (N=498) (see Table 16) in patients receiving a MEC regimen. Patient demographics were similar between the two treatment groups. Of the total 1,000 patients included in the efficacy analysis, 41% were men, 84% White, 4% Asian, 1% American Indian/Alaska Native, 2% Black, 10% Multi-Racial, and 19% Hispanic/Latino ethnicity. Patient ages ranged from 23 to 88 years of age, with a mean age of 60 years. The most commonly administered MEC chemotherapeutic agents were carboplatin (51%), oxaliplatin (24%), and cyclophosphamide (12%).

Table 16

Treatment Regimens in Adult MEC Trial*

	Day 1	Day 2	Day 3
Fosaprepitant Regimen
Fosaprepitant for injection	150 mg intravenously over 20 to 30 minutes approximately 30 minutes prior to chemotherapy	none	none
Oral Dexamethasone	12 mg	none	none
Oral Ondansetron	8 mg for 2 doses	none	none
Standard Therapy
Oral Dexamethasone	20 mg	none	none
Oral Ondansetron	8 mg for 2 doses	8 mg twice daily	8 mg twice daily

*Fosaprepitant for injection placebo and dexamethasone placebo (on Day 1) were used to maintain blinding.

Dexamethasone was administered 30 minutes prior to chemotherapy treatment on Day 1. The 12 mg dose reflects a dosage adjustment to account for a drug interaction with the fosaprepitant for injection regimen [see Clinical Pharmacology (12.3)].

The first ondansetron dose was administered 30 to 60 minutes prior to chemotherapy treatment on Day 1 and the second dose was administered 8 hours after first ondansetron dose.

The primary endpoint was complete response (defined as no vomiting and no rescue therapy) in the delayed phase (25 to 120 hours) of chemotherapy-induced nausea and vomiting. The results by treatment group are shown in Table 17

Table 17

Percent of Adult Patients Receiving Moderately Emetogenic Chemotherapy Responding by Treatment Group

ENDPOINTS	Fosaprepitant for Injection Regimen (N = 502)* %	Standard Therapy Regimen (N = 498)* %	P-Value	Treatment Difference (95% CI)
PRIMARY ENDPOINT
Complete Response
Delayed phase	78.9	68.5	<0.001	10.4 (5.1, 15.9)

*N: Number of patients included in the intention to treat population.

Complete Response = no vomiting and no use of rescue therapy.

Delayed phase = 25 to 120 hours post-initiation of chemotherapy.

16 How Supplied/storage And Handling  ⮝

Single-dose glass vial containing 115 mg of fosaprepitant as a white to off-white lyophilized powder for reconstitution. Supplied as follows:

NDC 67457-888-10 1 vial per carton

Single-dose glass vial containing 150 mg of fosaprepitant as a white to off-white lyophilized powder for reconstitution. Supplied as follows:

NDC 67457-889-10 1 vial per carton

Storage

Fosaprepitant for Injection vials must be refrigerated, store at 2 to 8 C (36 to 46 F).

The reconstituted final drug solution is stable for 24 hours at ambient room temperature [at or below 25 C (77 F)].

Package/label Display Panel ⮝

NDC 67457-888-10

Fosaprepitant for Injection

115 mg per vial

STERILE LYOPHILIZED POWDER FOR INTRAVENOUS USE ONLY AFTER RECONSTITUTION AND DILUTION

DO NOT USE WITH SOLUTIONS CONTAINING DIVALENT CATIONS (e.g., Ca2+, Mg2+) INCLUDING LACTATED RINGER S SOLUTION.

Mylan

Rx only

Single-Dose Vial

Package/label Principal Display Panel ⮝

NDC 67457-889-10

Fosaprepitant for Injection

150 mg per vial

Reconstitute with 5 mL of 0.9% Sodium Chloride for Injection

STERILE LYOPHILIZED POWDER FOR INTRAVENOUS USE ONLY AFTER RECONSTITUTION AND DILUTION

DO NOT USE WITH SOLUTIONS CONTAINING DIVALENT CATIONS (e.g., Ca2+, Mg2+) INCLUDING LACTATED RINGER S SOLUTION AND HARTMANN'S SOLUTION.

Mylan

Rx only

Single-Dose Vial

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:67457-888 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength FOSAPREPITANT DIMEGLUMINE (UNII: D35FM8T64X) (APREPITANT - UNII:1NF15YR6UY) FOSAPREPITANT 115 mg in 5 mL

Inactive Ingredients Ingredient Name Strength EDETATE DISODIUM (UNII: 7FLD91C86K) 14.4 mg in 5 mL POLYSORBATE 80 (UNII: 6OZP39ZG8H) 57.5 mg in 5 mL ANHYDROUS LACTOSE (UNII: 3SY5LH9PMK) 287.5 mg in 5 mL HYDROCHLORIC ACID (UNII: QTT17582CB) SODIUM HYDROXIDE (UNII: 55X04QC32I)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:67457-888-10 1 in 1 CARTON 01/01/2029 1 5 mL in 1 VIAL, SINGLE-DOSE; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA204015 09/05/2019

FOSAPREPITANT fosaprepitant injection, powder, lyophilized, for solution

Product Information Product Type HUMAN PRESCRIPTION DRUG Item Code (Source) NDC:67457-889 Route of Administration INTRAVENOUS

Active Ingredient/Active Moiety Ingredient Name Basis of Strength Strength FOSAPREPITANT DIMEGLUMINE (UNII: D35FM8T64X) (APREPITANT - UNII:1NF15YR6UY) FOSAPREPITANT 150 mg in 5 mL

Inactive Ingredients Ingredient Name Strength EDETATE DISODIUM (UNII: 7FLD91C86K) 18.8 mg in 5 mL POLYSORBATE 80 (UNII: 6OZP39ZG8H) 75 mg in 5 mL ANHYDROUS LACTOSE (UNII: 3SY5LH9PMK) 375 mg in 5 mL HYDROCHLORIC ACID (UNII: QTT17582CB) SODIUM HYDROXIDE (UNII: 55X04QC32I)

Packaging # Item Code Package Description Marketing Start Date Marketing End Date 1 NDC:67457-889-10 1 in 1 CARTON 09/05/2019 1 5 mL in 1 VIAL, SINGLE-DOSE; Type 0: Not a Combination Product

Marketing Information Marketing Category Application Number or Monograph Citation Marketing Start Date Marketing End Date ANDA ANDA204015 09/05/2019

Labeler - Mylan Institutional LLC (790384502)

Revised: 9/2019 Document Id: 3cbec635-f8a2-4224-a086-d0fb64bb6a9a 34391-3 Set id: 9b6d5ea3-2f7a-4501-9a4a-6fa1a7c2d50a Version: 1 Effective Time: 20190904 Mylan Institutional LLC