Using beta-blockers to promote heart muscle cell growth in infants with congenital heart defects

Mechanistic Clinical Trial of Beta-Blocker Administration For Reactivating Cardiomyocyte Division In Tetralogy of Fallot

Phase 1 Interventional Weill Medical College of Cornell University · NCT04713657

This study is testing if a heart medication called Propranolol can help heart muscle cells grow better in infants with certain congenital heart defects.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment40 (estimated)
Ages30 Days to 60 Days
SexAll
SponsorWeill Medical College of Cornell University Academic / other
Locations3 sites (New York, New York and 2 other locations)
Trial IDNCT04713657 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the use of Propranolol, a beta-blocker, to enhance the proliferation of heart muscle cells in infants diagnosed with Tetralogy of Fallot or Double Outlet Right Ventricle. The study aims to understand how this medication can potentially normalize heart growth by examining discarded heart muscle tissue obtained during surgical procedures. By focusing on infants under 45 days of age, the trial seeks to provide insights into new treatment options for heart failure associated with congenital heart disease. The methodology includes various assessments such as echocardiograms and cardiac MRIs to monitor heart development.

Who should consider this trial

Good fit: Ideal candidates are male and female infants under 45 days of age with a diagnosis of Tetralogy of Fallot or Double Outlet Right Ventricle who weigh more than 2 kg.

Not a fit: Patients with congenital atrio-ventricular block, certain respiratory diseases, or those unable to comply with study requirements may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could lead to improved heart function and reduced long-term complications for infants with congenital heart defects.

How similar studies have performed: While the approach of using beta-blockers for heart muscle regeneration is novel, similar studies have shown promise in understanding heart cell proliferation in other contexts.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male and female infants \< 60 days of age with a diagnosis of tetralogy of Fallot (ToF) with pulmonary stenosis (PS) or double outlet right ventricle (DORV), tetralogy type by echocardiogram, who weigh greater than 2 kg at the time of consent and are tolerating enteral feeds.
* DORV variant

Exclusion Criteria:

* congenital atrio-ventricular block on EKG (PR interval \> 120 ms),
* concomitant medication administration that interacts with propranolol,
* patient family is, in the opinion of the investigator, unable to comply with the requirements of the study protocol or is unsuitable for the study for any reason,
* gestation age \< 35 weeks,
* infants of diabetic mothers, asthma or underlying respiratory disease,
* presence of metal implants in infants.

Where this trial is running

New York, New York and 2 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Tetralogy of FallotDouble Outlet Right Ventricle
Last reviewed 2026-06-13 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.