Evaluating pregnancy outcomes in women exposed to rimegepant

Retrospective Cohort Study of Pregnancy Outcomes in Women Exposed to Rimegepant During Pregnancy

Observational Pfizer · NCT05198245

This study is trying to see if using the migraine medication rimegepant during pregnancy affects the health of both the mother and baby compared to women who didn't use it.

Quick facts

Study typeObservational
Enrollment1 (estimated)
Ages16 Years to 49 Years
SexFemale
SponsorPfizer Industry-sponsored
Drugs / interventionserenumab, fremanezumab, eptinezumab, galcanezumab
Locations1 site (Research Triangle Park, North Carolina)
Trial IDNCT05198245 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the risks associated with pregnancy outcomes in women who have been exposed to rimegepant, a medication used for migraine treatment, during pregnancy. It will compare these outcomes with two groups of women who were not exposed to rimegepant. The study will include pregnant women aged 16 to 49 years and will gather data on various pregnancy and infant outcomes. The goal is to provide insights into the safety of rimegepant use during pregnancy.

Who should consider this trial

Good fit: Ideal candidates for this study are pregnant women aged 16 to 49 years who are experiencing migraines.

Not a fit: Patients who are not pregnant or those who have used other migraine treatments within the specified time frame may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide valuable information regarding the safety of rimegepant for pregnant women suffering from migraines.

How similar studies have performed: While there have been studies on migraine treatments during pregnancy, the specific evaluation of rimegepant's effects is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria (All Pregnancies):

All pregnant women aged 16 to 49 years, inclusive, at the estimated LMP within the study observation period are eligible to enter in the study.

Exclusion Criteria (All Pregnancies):

* Has insufficient information to estimate LMP
* Has at least 1 pharmacy dispensing for ditans (i.e., lasmiditan) within a 5-half-life time window before the estimated LMP through whichever is first: end of pregnancy or end of the study period
* Has at least 1 pharmacy dispensing for a CGRP receptor antagonist other than rimegepant (i.e., ubrogepant, atogepant, and zavegepant) within a 5-half-life time window before the estimated LMP through whichever is first: end of pregnancy or end of the study period
* Has at least 1 pharmacy dispensing for CGRP monoclonal antibodies (i.e., erenumab, fremanezumab, eptinezumab, and galcanezumab) within a 5-half-life time window before the estimated LMP through whichever is first: end of pregnancy or end of the study period

Additional Eligibility Criteria (Rimegepant-Exposed Group):

* Have a migraine diagnosis any time before the estimated LMP and through whichever is first: end of pregnancy or end of the study period
* Have at least 1 pharmacy dispensing for rimegepant within the 30-day time window before the estimated LMP and through whichever is first: end of pregnancy or end of the study period
* Have a recorded outcome of pregnancy within the study period
* Had continuous enrollment in a health care plan with medical and pharmacy benefits during the 6-month period before the estimated LMP through a postpartum period of 42 days

Additional Inclusion Criteria (Primary Comparator Group):

* Have a migraine diagnosis any time before the estimated LMP and through whichever is first: end of pregnancy or end of the study period
* Have at least 1 pharmacy dispensing for a medication indicated for the treatment of migraine within the 30-day time window before the estimated LMP and ending with whichever is first: end of pregnancy or end of the study period.
* Have a recorded outcome of pregnancy within the study period
* Had continuous enrollment in a health care plan with medical and pharmacy benefits during the 6-month period before the estimated LMP through a postpartum period of 42 days

Additional Exclusion Criteria (Primary Comparator Group):

• Have at least 1 pharmacy dispensing for rimegepant within the 30-day time window before the estimated LMP and through whichever is first: end of pregnancy or end of the study period

Additional Inclusion Criteria (Secondary Comparator Group):

* Have no migraine diagnosis any time before the estimated LMP through whichever is first: end of pregnancy or end of the study period
* Have a recorded outcome of pregnancy within the study period
* Had continuous enrollment in a health care plan with medical and pharmacy benefits during the 6-month period before the estimated LMP through a postpartum period of 42 days

Additional Exclusion Criteria (Secondary Comparator Group):

• Have at least 1 pharmacy dispensing for rimegepant within the 30-day time window before the estimated LMP through whichever is first: end of pregnancy or end of the study period

Where this trial is running

Research Triangle Park, North Carolina

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions MigraineMigraine DisorderMigraine PreventionPrevention of MigrainePregnantPregnancyInfant
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.