One-Time gene infusion aims to repair hearts in rare genetic condition
NCT ID NCT07426419
First seen Jun 26, 2026 · Last updated Sep 02, 2026 · Updated 10 times
Summary
This early-stage trial tests a single intravenous dose of AFTX-201, a gene therapy designed to deliver a working copy of the BAG3 gene to heart cells. It enrolls 22 adults aged 18–55 with dilated cardiomyopathy and a BAG3 mutation. The study primarily checks safety and tolerability over 12 months, while also measuring changes in heart function and biomarkers.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- AFTX-201 (gene therapy)
- What this could lead to
- If successful, this could point toward a one-time gene therapy treatment to improve heart function in people with BAG3-related dilated cardiomyopathy.
- What could go wrong
- This is an early Phase 1/2 trial with only 22 participants, so safety and effectiveness are not yet proven. Gene therapies can have unexpected side effects, and long-term benefits are uncertain.
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
-
Phase 1/2
Runs two stages together: safety and dose first, then whether the treatment works.
- Participants
-
About 22 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
-
Sep 2026
An estimate. Start dates often move.
- Expected to finish
-
Dec 2032
An estimate. End dates often move.
- Lead sponsor
-
A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
-
18 to 70 years
- 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 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: Male or female, 18 to 70 years of age Truncating mutation in BAG3 Dilated cardiomyopathy with left ventricular ejection fraction (LVEF) \< 45% NYHA Class II or III heart failure symptoms NT-proBNP ≥ 300 pg/mL for subjects in sinus rhythm or paced rhythm, or ≥ 600 pg/mL for subjects in atrial fibrillation Willing and able to sign informed consent and comply with study procedures Exclusion Criteria: Prior myocardial infarction, heart transplant, or presence/requirement of a left ventricular assist device (LVAD) IV therapy with positive inotropes, vasodilators, or diuretics for heart failure within 30 days prior to enrollment Positive neutralizing antibodies to ATC-0187 Any condition that, in the investigator's opinion, would place the subject at undue risk or interfere with study participation or interpretation of results
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for BAG3 mutation associated dilated cardiomyopathy are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The places running it
4 sites in 2 countries. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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
-
Houston Methodist Hospital
RECRUITINGHouston, Texas, 77030, United States
-
Institut de Cardiologie de Montréal / Montreal Heart Institute
RECRUITINGMontreal, Quebec, QC H1T 1C8, Canada
-
St. Lukes Hospital
RECRUITINGKansas City, Missouri, 64111, United States
-
University of Miami Hospital and Clinics
RECRUITINGMiami, Florida, 33136, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Second infusion of designer cells aims to rescue failing hearts
- New study tracks rare genetic heart condition
- 5,000 heart patients to wear smart patches for Years-Long observation
- Experimental cell therapy targets End-Stage heart disease
- One-Time gene shot aims to mend broken hearts
- New heart MRI study could simplify diagnosis without dye