Clinical trial Recruiting at 1 site Observational Ages 15 and up Women only

Monitoring the effects of mavacamten during pregnancy and breastfeeding

Official title: Mavacamten Pregnancy Surveillance Program

Run by Bristol-Myers Squibb · NCT05939700 · Data updated 2026-11-12

This study is testing how safe the heart medication mavacamten is for mothers and their babies during pregnancy and breastfeeding.

More Pregnancy Related trials

Quick facts

Study typeObservational
Ages15 Years and up
SexWomen only
Enrollment20 (estimated)
SponsorBristol-Myers Squibb
Industry-sponsored
Locations1 site (Wilmington, North Carolina)
StatusRecruiting
StartedNovember 9, 2023
Main results expectedApril 30, 2027
Study endsApril 30, 2027
Registry record updatedNovember 6, 2025
Trial IDNCT05939700 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals who have taken mavacamten during pregnancy or breastfeeding and are at least 15 years old.

Probably not a fit

Patients who have not been exposed to mavacamten during pregnancy or breastfeeding will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational program aims to evaluate the safety of mavacamten exposure during pregnancy and breastfeeding by assessing maternal, fetal, and infant outcomes. Participants must have received at least one dose of mavacamten at any time from four months prior to conception through the outcome of the pregnancy or during breastfeeding. The study will gather data on the health effects for both mothers and infants to ensure safety and inform future use of the medication in these populations.

Why it matters

Potential benefit: If successful, this program could provide critical safety information for mothers and infants exposed to mavacamten during pregnancy and breastfeeding.

How similar studies have gone: While this specific approach is observational and may not have been extensively tested, similar studies assessing medication safety during pregnancy have shown the importance of monitoring outcomes.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Exposure to at least 1 dose of mavacamten at any time during pregnancy (from 4 months prior to conception to pregnancy outcome) and/or at any time during breastfeeding (up to 12 months of infant age or weaning, whichever comes first)
* At least 15 years of age or older at the time of enrollment
* Informed consent or institutional review board/ethics committee-approved waiver of informed consent

Exclusion Criteria:

\- None

Where it's running

  • The Mavacamten Pregnancy Surveillance Program, PPD Inc
    Wilmington, North Carolina, United States
    Recruiting

Study contacts

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.