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NCT Number: NCT05198245

Study of Pregnancy Outcomes in Women Exposed to Rimegepant During Pregnancy

The purpose of the study is to evaluate the risk of pregnancy and infant outcomes among women with migraine exposed to rimegepant during pregnancy and in two rimegepant unexposed comparator groups.

Active, Not Recruiting

This study is active but is not currently recruiting participants.

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Key information

Age range

16 year–49 year

Sex eligibility

Female

Study type

Observational

Primary location

Pfizer

New York, 10001, United States

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

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

Treatment and study plan

Rimegepant

Drug

Rimegepant 75mg

Various

Drug

Various

No intervention

Other

No intervention

Primary outcomes

  1. Major congenital malformations, spontaneous abortions, fetal deaths/stillbirths, small for gestational age births

    Time frame: Annually beginning April 2022

Secondary outcomes

  1. Elective terminations

    Time frame: Annually beginning April 2022

  2. Preterm births

    Time frame: Annually beginning April 2022

  3. Pre-eclampsia/eclampsia

    Time frame: Annually beginning April 2022

Sponsors and collaborators

Lead sponsor

Pfizer

Industry

Collaborators

  • Optum, Inc.
  • RTI Health Solutions

Registry information

Official study title

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

Important dates

Study start
2021
Primary completion
2028
Study completion
2028
First posted
Jan 20, 2022
Registry last updated
Jan 8, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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