Heart drug swap tested for safer symptom control
NCT ID NCT07600177
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether people with a type of heart disease called obstructive hypertrophic cardiomyopathy can safely switch from one medication (mavacamten) to another (aficamten). The goal is to keep the heart working better and reduce symptoms. About 40 adults who are already taking mavacamten will be enrolled and closely monitored for side effects and heart function changes.
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.
- Phase
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Phase 4
Runs after approval, following long-term safety and how well the treatment works in everyday use.
- Participants
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About 40 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2026
- Expected to finish
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Mar 2027
An estimate. End dates often move.
- Lead sponsor
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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.
- Ages
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18 to 90 years
- Sex
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Anyone
- Healthy volunteers
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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 Hide 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: * Documented history of oHCM with documented resting and/or Valsalva LVOT obstruction ≥ 50 mmHg who are currently receiving mavacamten commercially. * Echo-derived LVEF ≥55% on mavacamten at the time of enrollment. * Patient willing to consent for the study and undergo the study procedures. Exclusion Criteria: * Severe aortic stenosis or sub-aortic obstruction * Known infiltrative or storage disorder causing cardiac hypertrophy that mimics HCM (eg, Noonan syndrome, Fabry disease, amyloidosis). * History of LVEF \<30%. * Paroxysmal atrial fibrillation (AF) with documented episode within 3 months. * Atrial fibrillation (paroxysmal or permanent) not on systemic anticoagulation. * Documented history of current obstructive coronary artery disease (\> 70% stenosis in one or more epicardial coronary arteries) or documented history of myocardial infarction.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Oregon Health & Science University
RECRUITINGPortland, Oregon, 97239, United States
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St. Luke's Hospital - Mid America Heart Institute
NOT_YET_RECRUITINGKansas City, Missouri, 64111, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- 3,000 hearts, one goal: mapping how hypertrophic cardiomyopathy unfolds in china
- Heart scan AI could predict sudden cardiac death risk in common heart condition
- Experimental pill aims to ease thick heart muscle symptoms
- Massive HCM database aims to unlock better heart care
- Real-World HCM drug use under the microscope
- Heart drug mavacamten shows promise in Real-World study