A Study to Learn About the Study Medication, Zavegepant, in Healthy Volunteers

Study Overview
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Brief Summary
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This trial is designed to compare the rate and extent of absorption of four different formulations of zavegepant. 52 healthy male and female volunteers will receive a single dose of each formulation at least 7 days apart over a period of about 7 weeks and the amount of drug in their blood will be assessed over the 24 hour period after each dose.

Detailed Description
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This is a Phase 1, single centre, open-label, single dose, 4-period, crossover study designed to compare the pharmacokinetics (PK) of zavegepant from three Test products and a Reference product (treatment D). 52 male and female healthy volunteers will be randomly assigned to one of 4 treatment sequences: ACBD, CDAB, BADC, and DBCA. In each period, subjects will receive one of the following: Treatment A, B, C, or D on Day 1, followed by 24 hours of PK and safety assessments. On Day 2 subjects will be discharged from the clinical site and instructed to return after at least a 7 day washout time has passed for subsequent periods of treatment. The study will include a screening visit from Day -28 to Day -2. Eligible subjects will be admitted to the clinical site on Day -1 and will be confined until completion of the assessments on Day 2. There will be a washout period of at least 7 days between doses. Study Exit procedures will be performed after the last assessment on the morning of Day 2 of Period 4. Study Exit procedures will be performed as soon as possible in case of Early Termination. The total duration of study participation for each subject from Screening through Study Exit is anticipated to be approximately 6.5 weeks.

Official Title
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A PHASE 1, OPEN-LABEL, RANDOMIZED, 4-PERIOD, 4-WAY CROSSOVER, RELATIVE BIOAVAILABILITY STUDY OF ZAVEGEPANT (BHV-3500) ORAL FORMULATIONS UNDER FASTING CONDITIONS

Conditions
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Biological Availability

Intervention / Treatment
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* Drug: Zavegepant 100mg non-enteric coated soft gel capsule
* Drug: Zavegepant 100mg immediate release tablet
* Drug: Zavegepant 2 x 100mg immediate release tablets
* Drug: Zavegepant 4 x 25mg enteric coated soft gel capsule


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Participants must provide Informed Consent Form (ICF) obtained prior to the conduct of any study activities. Healthy Male or female participants at least 18 and less than 56 years of age, Participants must be Non-smokers and not have used any nicotine-containing products for 3 months prior to screening. Body Mass Index (BMI) >18.5 and <30.0kg/m2 and body weight ≥ 50.0kg for males and ≥ 45.0kg for females. All females participants must not be breastfeeding and have a negative urine pregnancy test at Screening. Females of childbearing potential must be willing to use acceptable contraceptive methods throughout the study and for 30 days after the last study drug administration. Male participants with a female partner of childbearing potential must be willing to use acceptable contraceptive methods from the first study drug administration until at least 90 days after the last study drug administration. Exclusion Criteria: Current diagnosis of viral hepatitis or a history of liver disease. Any history of seizure disorder (e.g., epilepsy) other than a single childhood febrile seizure. Current or recent (within 3 months of the first study drug administration) gastrointestinal disease that may interfere with drug absorption. Prior gastrointestinal surgery that interferes with absorption and motility (e.g., gastric bypass, duodenectomy or gastric banding). History of drug or alcohol abuse. History of anaphylaxis, a documented hypersensitivity reaction, or a clinically significant reaction to any drug or to any of the excipient supporting the zavegepant formulations. Donation of plasma within 7 days prior to dosing, or donation or loss of blood (excluding volume drawn at Screening) of 50 mL to 499 mL of blood within 30 days, or more than 499 mL within 56 days prior to dosing. Participation in a clinical research study involving the administration of an investigational or marketed drug or device within 30 days prior to the dosing, extended to 90 days for biological products. Inability or difficulty to swallow tablets or capsules. Subjects with any clinically significant abnormality or significant abnormal laboratory test results found during medical screening or Day-1. Positive test for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), or hepatitis C virus (HCV) antibody during screening. Inadequate renal function - estimated glomerular filtration rate (eGFR) according to the Modification of Diet in Renal Disease (MDRD) study equation ≤ 60 mL/min/1.73 m2 at Screening. Any of the following laboratory parameters greater than the upper limit of normal (ULN) values at Screening or Baseline (Day -1): alkaline phosphatase (ALP) aspartate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin, direct bilirubin, and indirect bilirubin, and alkaline phosphatase. Any clinically significant abnormalities on 12-lead ECG or blood pressure (BP) at Screening or Baseline (Day -1) visits. Any clinically significant abnormal haematological laboratory test values at Screening or Baseline (Day -1) visits. Positive test for COVID-19 performed on Day -1 of each period.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 55 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Basic Science
Allocation: Randomized
Intervention Model: Crossover Assignment
Interventional Model Description: Randomized, open-label, single dose, 4-period cross-over, comparative bioavailability study in healthy volunteer participants.
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Sequence 1<br>Period 1 - Single zavegepant 100mg non-enteric coated soft gel capsule (Treatment A) followed by at least 7 days washout; Period 2 - Two zavegepant 100mg immediate release tablets (Treatment C) followed by at least 7 days washout; Period 3 - Single zavegepant 100mg immediate release tablet (Treatment B) followed by at least 7 days washout; Period 4 - Four zavegepant 25mg enteric coated soft gel capsule (Treatment D). | Drug: Zavegepant 100mg non-enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 100mg non-enteric coated soft gel capsule<br>* Other names: Treatment A;Drug: Zavegepant 100mg immediate release tablet<br>* Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablet<br>* Other names: Treatment B;Drug: Zavegepant 2 x 100mg immediate release tablets<br>* 2 x Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablets - total dose 200mg<br>* Other names: Treatment C;Drug: Zavegepant 4 x 25mg enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 25 mg enteric coated soft gel capsules - total dose 100mg<br>* Other names: Treatment D;|
| Experimental: Sequence 2<br>Period 1 - Two zavegepant 100mg immediate release tablets (Treatment C) followed by at least 7 days washout; Period 2 - Four zavegepant 25mg enteric coated soft gel capsule (Treatment D) followed by at least 7 days washout; Period 3 - Single zavegepant 100mg non-enteric coated soft gel capsule (Treatment A) followed by at least 7 days washout; Period 4 - Single zavegepant 100mg immediate release tablet (Treatment B). | Drug: Zavegepant 100mg non-enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 100mg non-enteric coated soft gel capsule<br>* Other names: Treatment A;Drug: Zavegepant 100mg immediate release tablet<br>* Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablet<br>* Other names: Treatment B;Drug: Zavegepant 2 x 100mg immediate release tablets<br>* 2 x Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablets - total dose 200mg<br>* Other names: Treatment C;Drug: Zavegepant 4 x 25mg enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 25 mg enteric coated soft gel capsules - total dose 100mg<br>* Other names: Treatment D;|
| Experimental: Sequence 3<br>Period 1 - Single zavegepant 100mg immediate release tablet (Treatment B) followed by at least 7 days washout; Period 2 - Single zavegepant 100mg non-enteric coated soft gel capsule (Treatment A) followed by at least 7 days washout; Period 3 - Four zavegepant 25mg enteric coated soft gel capsule (Treatment D) followed by at least 7 days washout; Period 4 - Two zavegepant 100mg immediate release tablets (Treatment C). | Drug: Zavegepant 100mg non-enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 100mg non-enteric coated soft gel capsule<br>* Other names: Treatment A;Drug: Zavegepant 100mg immediate release tablet<br>* Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablet<br>* Other names: Treatment B;Drug: Zavegepant 2 x 100mg immediate release tablets<br>* 2 x Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablets - total dose 200mg<br>* Other names: Treatment C;Drug: Zavegepant 4 x 25mg enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 25 mg enteric coated soft gel capsules - total dose 100mg<br>* Other names: Treatment D;|
| Experimental: Sequence 4<br>Period 1 - Four zavegepant 25mg enteric coated soft gel capsule (Treatment D) followed by at least 7 days washout; Period 2 - Single zavegepant 100mg immediate release tablet (Treatment B) followed by at least 7 days washout; Period 3 - Two zavegepant 100mg immediate release tablets (Treatment C) followed by at least 7 days washout; Period 4 - Single zavegepant 100mg non-enteric coated soft gel capsule (Treatment A). | Drug: Zavegepant 100mg non-enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 100mg non-enteric coated soft gel capsule<br>* Other names: Treatment A;Drug: Zavegepant 100mg immediate release tablet<br>* Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablet<br>* Other names: Treatment B;Drug: Zavegepant 2 x 100mg immediate release tablets<br>* 2 x Zavegepant (PF-07930207/BHV3500) 100mg dodecylmaltoside dosage form immediate release tablets - total dose 200mg<br>* Other names: Treatment C;Drug: Zavegepant 4 x 25mg enteric coated soft gel capsule<br>* Zavegepant (PF-07930207/BHV3500) 25 mg enteric coated soft gel capsules - total dose 100mg<br>* Other names: Treatment D;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Curve From Time Zero to Extrapolated Infinite Time [AUC (0 - ∞)] | AUC (0 - ∞)= Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0 - ∞). It is obtained from AUC (0 - t) plus AUC (t - ∞). | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 
| Maximum Observed Plasma Concentration (Cmax) | Maximum observed plasma concentration (Cmax) for zavegepant | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 
| Area Under the Curve From Time Zero to Last Quantifiable Concentration (AUClast) | Area under the plasma concentration time-curve from zero to the last measured concentration (AUClast) | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Time to Reach Maximum Observed Plasma Concentration (Tmax) | Time at which Maximum Observed Plasma Concentration (Tmax) is observed | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 
| Plasma Decay Half-Life (t1/2) | Plasma decay half-life is the time measured for the plasma concentration to decrease by one half. | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 
| Apparent Oral Clearance (CL/F) | Clearance of a drug is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the fraction of the dose absorbed. Clearance was estimated from population pharmacokinetic (PK) modelling. Drug clearance is a quantitative measure of the rate at which a drug substance is removed from the blood. | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose | 
| Apparent Volume of Distribution (Vz/F) | Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose (Vz/F) is influenced by the fraction absorbed. | 0, 0.25, 0.5, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 16, and 24 hours post-dose |