Comparing Entresto and placebo in patients with Tetralogy of Fallot and Ebstein's Anomaly

Effect of Sacubitril-Valsartan on Cardiac Structure and Function in Adults With Congenital Heart Disease

Phase 3 Interventional Mayo Clinic · NCT06693674

This study is testing whether the heart medication Entresto can help people with Tetralogy of Fallot and Ebstein's Anomaly feel better and improve their heart function compared to a placebo.

Quick facts

PhasePhase 3
Study typeInterventional
Enrollment45 (estimated)
Ages18 Years and up
SexAll
SponsorMayo Clinic Academic / other
Drugs / interventionsObinutuzumab
Locations1 site (Rochester, Minnesota)
Trial IDNCT06693674 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effects of Entresto, a heart failure medication, on patients with Tetralogy of Fallot (TOF) and Ebstein's Anomaly (EA). Participants will be randomized to receive either Entresto or a placebo, and the study will assess changes in right ventricular structure and function, biomarkers, and patient-reported outcomes. The research is designed to provide insights into the potential benefits of Entresto for these specific congenital heart conditions.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 or older diagnosed with Tetralogy of Fallot or Ebstein's Anomaly.

Not a fit: Patients with severe kidney disease, certain heart conditions, or those on specific disallowed medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could improve treatment options and outcomes for patients with Tetralogy of Fallot and Ebstein's Anomaly.

How similar studies have performed: While there may be limited studies specifically on Entresto for these conditions, the use of ARNI medications has shown promise in heart failure management, indicating potential for success.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Congenital Heart Disease Diagnosis
* Age 18 or Older

Exclusion Criteria:

* Stage IV chronic kidney disease defined as creatinine clearance \<30 ml/min
* Hyperkalemia defined as serum potassium \>5.2 mmol/l,
* Hypotension defined as systolic blood pressure \<100 mmHg,
* History of angioedema related to previous ACE or ARB therapy
* Patients diagnosed with diabetes using Aliskiren,
* Pregnancy.
* Drug Therapies

  * Amifostine
  * Droperidol
  * Dantrolene
  * CYP3A4 Inhibitors
  * Obinutuzumab
  * Aliskiren
  * Lithium
  * Sparsentan
  * ACE inhibitor
  * ARB
  * ARNI

Where this trial is running

Rochester, Minnesota

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 Congenital Heart Disease
Last reviewed 2026-06-10 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.