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Gene test may personalize heart drug dosing

NCT ID NCT07439952

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looks at how a person's genes affect their response to the heart drug mavacamten for obstructive hypertrophic cardiomyopathy. Researchers will collect DNA samples from 300 patients to see which genetic types respond best. The goal is to improve dosing safety and effectiveness based on genetic differences.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 300 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Jul 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

300 patients with obstructive hypertrophic cardiomyopathy treated with Mavacamten who underwent or are undergoing CYP2C19 genotyping at the start of treatment.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * \- Patients aged ≥18 years * Diagnosis of obstructive hypertrophic cardiomyopathy (OHCM), based on the guidelines of the European Society of Cardiology (Arbelo et al. 2023), with unexplained left ventricular hypertrophy and a maximum LVOT gradient ≥ 50 mmHg at rest, or after Valsalva manoeuvre or exercise at the time of diagnosis, and an LVOT gradient with Valsalva manoeuvre ≥ 30 mmHg at selection * With cardiac symptoms defined as NYHA class II/III, persistent despite background treatment (beta-blockers or calcium channel blockers) * LVEF ≥55% at the start of treatment with mavacamten * Initiation of treatment with mavacamten or patient already receiving treatment * Prescription of pre-treatment CYP2C19 genotyping performed * Consent to participate signed by the patient * Beneficiary of health insurance Exclusion Criteria: * Minors * Adults under guardianship (legal guardianship and curatorship) or judicial protection * Pregnant or breastfeeding women

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Conditions

The condition(s) this trial relates to.

hypertrophic cardiomyopathy

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Obstructive hypertrophic cardiomyopathy (OHCM)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    3 sites. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • APHP, Ambroise Paré

    Boulogne-Billancourt, 92100, France

  • APHP, Bicêtre hospital

    Le Kremlin-Bicêtre, France

  • APHP, La Pitié Salpetriere hospital

    Paris, 75013, France

More trials for these conditions

Other studies related to the condition(s) this trial covers.