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CTRI Number  CTRI/2025/11/097643 [Registered on: 18/11/2025] Trial Registered Prospectively
Last Modified On: 26/11/2025
Post Graduate Thesis  No 
Type of Trial  Interventional 
Type of Study   Drug 
Study Design  Other 
Public Title of Study   A Study to Learn About the Study Medicine Called Rimegepant in Women When Used for Intermittent Prevention of Menstrual Migraine 
Scientific Title of Study   An Interventional Efficacy and Safety, Phase 3, Double-Blind, Parallel-Group Study to Investigate Intermittent Prevention of Menstrual Migraine with Rimegepant Compared with Placebo in Women Participants 18 to 45 Years of Age 
Trial Acronym  NIL 
Secondary IDs if Any  
Secondary ID  Identifier 
NCT06641466  ClinicalTrials.gov 
Protocol C4951063, Final Protocol Amendment 1, 05 Dec 2024  Protocol Number 
 
Details of Principal Investigator or overall Trial Coordinator (multi-center study)  
Name   
Designation   
Affiliation   
Address 




 
Phone    
Fax    
Email    
 
Details of Contact Person
Scientific Query
 
Name  Dr Seema Pai 
Designation  Sr Director Clinical Site Operations India Cluster 
Affiliation  Pfizer Limited 
Address  The Capital, 1802-1901, Plot No. C-70, G Block, Bandra Kurla Complex, Bandra (East) Mumbai-400051,MAHARASHTRA, India

Mumbai
MAHARASHTRA
400051
India 
Phone  02266932000  
Fax    
Email  seema.pai@pfizer.com  
 
Details of Contact Person
Public Query
 
Name  Dr Seema Pai 
Designation  Sr Director Clinical Site Operations India Cluster 
Affiliation  Pfizer Limited 
Address  The Capital, 1802-1901, Plot No. C-70, G Block, Bandra Kurla Complex, Bandra (East) Mumbai-400051,MAHARASHTRA, India

Mumbai
MAHARASHTRA
400051
India 
Phone  02266932000  
Fax    
Email  seema.pai@pfizer.com  
 
Source of Monetary or Material Support  
Pfizer Inc. 66 Hudson Boulevard East New York, NY 10001 
 
Primary Sponsor  
Name  Pfizer Inc.  
Address  66 Hudson Boulevard East New York, NY 10001 United States 
Type of Sponsor  Pharmaceutical industry-Global 
 
Details of Secondary Sponsor  
Name  Address 
Ms Pfizer Limited  The Capital, 1802/1901, Plot No. C - 70, G Block, Bandra Kurla Complex, Bandra(East), Mumbai 400 051 
 
Countries of Recruitment     Argentina
Canada
China
Denmark
Germany
India
Italy
Japan
Mexico
Netherlands
Poland
Republic of Korea
Spain
United Kingdom
United States of America  
Sites of Study
Modification(s)  
No of Sites = 8  
Name of Principal Investigator  Name of Site  Site Address  Phone/Fax/Email 
Dr Amit Yeole  Chopda Medicare and Research Centre Pvt. Ltd  Magnum Heart Institute, 3/5, Patil Lane 1, Laxmi Nagar, Near K B H Vidyalaya, Canada Corner, Nashik-422005, Maharashtra, India
Nashik
MAHARASHTRA 
7588554530

amit_yeole37@rediffmail.com 
Dr Prafulla Shembalkar  Getwell Hospital and Research Institute  Room G-12, Getwell Hospital and Research Institute, 20/1, Dr. Khare Marg, Dhantoli, Nagpur 440012, Maharashtra, India
Nagpur
MAHARASHTRA 
9096050839

drshembalkar@gmail.com 
Dr Dilip Nagrawal  Jawahar Lal Nehru Medical College  Room 36, Jawahar Lal Nehru Medical College, Ajmer, Kala Bagh, Ajmer-305001, Rajasthan, India
Ajmer
RAJASTHAN 
7703841956

doctordilip.nagarwal@gmail.com 
Dr Vijaya Pamidimukkala  Lalitha Super Specialities Hospital  Kothapet, Guntur-522001, Andhra Pradesh, India
Guntur
ANDHRA PRADESH 
9940808621

drvijaya.lssh@gmail.com 
Dr Shankara Nellikunja  Mallikatta Neuro Centre  Opp. Mallikatta Circle, Kadri-575002, Mangaluru, Karnataka, India
Dakshina Kannada
KARNATAKA 
8242444933

dr.shankaramnc@gmail.com 
Dr Mukesh Sharma  Marengo CIMS Hospital, Ahmedabad  Plot No. 67/1, Opposite Panchamrut Bunglows, Near Shukan Mall, Off. Science City Road, Sola, Ahmedabad - 380060, Gujarat, India
Ahmadabad
GUJARAT 
9375488882

mukesh.sharma@marengoasia.com 
Dr Jayantee Kalita  Sanjay Gandhi Post Graduate Institute of Medical Sciences  Room 10, 11 &12, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raebareli Road, Lucknow-226014, Uttar Pradesh, India
Lucknow
UTTAR PRADESH 
9450411673

jayanteek@yahoo.com 
Dr Rahul Chakor  Topiwala National Medical College & B. Y. L. Nair Charitable Hospital  Dr. A. L. Nair Road, Mumbai Central, Mumbai-400008, Maharashtra, India
Mumbai
MAHARASHTRA 
9820747496

rahulchakor@gmail.com 
 
Details of Ethics Committee
Modification(s)  
No of Ethics Committees= 8  
Name of Committee  Approval Status 
Ethics Committee of Marengo Asia Healthcare Private Limited  Approved 
Getwell Institutional Ethics Committee  Approved 
Institutional Ethics Committee  Submittted/Under Review 
Institutional Ethics Committee  Approved 
Institutional Ethics Committee TNMC NAIR HOSPITAL  Submittted/Under Review 
Lalitha SuperSpecialities Hospital Ethics Committee  Approved 
Magna-Care Ethics Committee  Approved 
Mangala Institutional Ethics Committee  Approved 
 
Regulatory Clearance Status from DCGI  
Status 
Approved/Obtained 
 
Health Condition / Problems Studied  
Health Type  Condition 
Patients  (1) ICD-10 Condition: G998||Other specified disorders of nervous system in diseases classified elsewhere,  
 
Intervention / Comparator Agent  
Type  Name  Details 
Comparator Agent  Placebo   Matching placebo oral disintegrating tablets is given once daily orally for 7 days in each cycle. 
Intervention  Rimegepant (PF-07899801)  Rimegepant 75 mg is given once daily orally for 7 days in each cycle.  
 
Inclusion Criteria  
Age From  18.00 Year(s)
Age To  45.00 Year(s)
Gender  Female 
Details  1. Participant has regular menstrual cycles greater than equal to 24 days and less than equal to 34 days
2. A minimum 1-year history of migraine (with or without aura) consistent with a diagnosis according to the International Classification of Headache Disorders, 3rd Edition
3. A history of menstrual migraine attacks of at least 3 months
4. Participant reported history of experiencing at least 1 migraine attack during the perimenstrual period in at least 2 out of 3 menstrual cycles immediately prior to screening.
5. If the participant is receiving a permitted background continuous prophylactic migraine medication, the medication dose must be stable for at least 3 months prior to the Screening visit and, the dose is not expected to change during the course of the study 
 
ExclusionCriteria 
Details  1. Greater than 6 migraine days per month that are outside of the perimenstrual period in the 3 months prior to Screening
2. A diagnosis of chronic migraine or a history of more than 14 headache days per month on average, in the 3 months prior to Screening
3. History of retinal migraine, basilar migraine or hemiplegic migraine
4. Current diagnosis of schizophrenia, bipolar, or borderline personality disorder
5. Other pain syndromes (eg, fibromyalgia, complex regional pain syndrome), or significant neurological disorders (other than migraine), or other medical conditions (including endocrine and gynecological eg, severe dysmenorrhea 
 
Method of Generating Random Sequence   Other 
Method of Concealment   Centralized 
Blinding/Masking   Participant and Investigator Blinded 
Primary Outcome  
Outcome  TimePoints 
Mean change from the Observation Period in number of migraine days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months  
 
Secondary Outcome  
Outcome  TimePoints 
Mean change from the Observation Period in number of headache days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months 
Percentage of participants with greater than equal to 50 percent reduction from the Observation Period in number of migraine days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase   5 months  
Mean change from the Observation Period in number of acute migraine medication days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months  
Mean change from the Observation Period in number of acute migraine-specific medication days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Period in number of migraine days with moderate-severe functional disability per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Period in number of moderate-severe headache days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Period in number of moderate-severe migraine days per 5-day perimenstrual period across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from baseline in the MiCOAS Cognition score at postdosing (ie, 1 day after the 7-day dosing period) across each cycle of the Double-Blind Treatment PhaseMean change from baseline in the MiCOAS Cognition score at postdosing (ie, 1 day after the 7-day dosing period) across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Period in monthly migraine days (per cycle, normalized to 28-days) across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Period in monthly headache days (per cycle, normalized to 28-days) across each cycle of the Double-Blind Treatment Phase  5 months 
Mean change from the Observation Phase in monthly acute migraine-specific medication days (per cycle, normalized to 28-days) across each cycle of the Double-Blind Treatment Phase  5 months 
 
Target Sample Size   Total Sample Size="470"
Sample Size from India="35" 
Final Enrollment numbers achieved (Total)= "Applicable only for Completed/Terminated trials"
Final Enrollment numbers achieved (India)="Applicable only for Completed/Terminated trials" 
Phase of Trial   Phase 3 
Date of First Enrollment (India)   03/12/2025 
Date of Study Completion (India) Applicable only for Completed/Terminated trials 
Date of First Enrollment (Global)  11/03/2025 
Date of Study Completion (Global) Applicable only for Completed/Terminated trials 
Estimated Duration of Trial   Years="0"
Months="9"
Days="0" 
Recruitment Status of Trial (Global)   Open to Recruitment 
Recruitment Status of Trial (India)  Not Yet Recruiting 
Publication Details   N/A 
Individual Participant Data (IPD) Sharing Statement

Will individual participant data (IPD) be shared publicly (including data dictionaries)?  

Response - NO
Brief Summary  
The purpose of this study is to evaluate the efficacy and safety of Rimegepant when administered during the peri-menstrual period (PMP) for intermittent prevention of migraine in women who experience menstrual migraine attacks. This study supports the continued development of Rimegepant for use as a short-term preventive treatment for migraine attacks associated with specific and predictable triggers.
 
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