Valsartan for Atrial Functional Mitral Regurgitation (AFMR) — Pilot
Official title: Effects of VALsartan On atRIAl Mitral Regurgitation: A Pilot Randomized Controlled Trial
Run by Laval University · NCT07539298 · Data updated 2026-11-12
Atrial functional mitral regurgitation is studied to see if valsartan can slow its progression in adults with good heart pump function.
Quick facts
| Phase | Phase2; Phase3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years to 85 Years |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Laval University Academic / other |
| Locations | 1 site (Québec, Quebec) |
| Status | Recruiting |
| Started | July 13, 2026 |
| Main results expected | May 1, 2029 |
| Study ends | December 1, 2029 |
| Registry record updated | August 20, 2026 |
| Trial ID | NCT07539298 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with AFMR, preserved LV systolic function, moderate left atrial dilatation, and moderate MR by multiparametric assessment.
✕Probably not a fit
Patients with contraindications to ARB therapy, uncontrolled hypertension, renal impairment, or those needing ongoing ACEI/ARB therapy may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This interventional trial tests whether valsartan, an angiotensin receptor blocker, can slow the progression of AFMR compared with placebo in adults with preserved ejection fraction. The study also looks at changes in mitral valve leaflets and heart structure on imaging, as well as safety and tolerability in participants who are not already on ARB/ACE inhibitors. It combines phase 2 and phase 3 elements to assess both preliminary signals and more robust outcomes. Participants are randomized to valsartan or placebo and followed with clinical and imaging assessments. Eligibility requires moderate-to-severe atrial enlargement, preserved LV function, and MR without organic mitral disease.
Why it matters
Potential benefit: If successful, valsartan could slow AFMR progression and improve heart structure and function, potentially reducing symptoms and hospitalizations.
How similar studies have gone: Previous data suggest ARBs may influence tissue remodeling, but direct evidence for AFMR progression slowing is limited and this study addresses that gap.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: 1. No evidence of mitral organic disease 2. At least moderate left atrial dilatation (left atrial volume index ≥34 mL/m²) 3. Normal (≥ 50%) left ventricular ejection fraction and 4. At least moderate MR grade by multiparametric assessment. Exclusion Criteria: 1. Inability to provide informed consent 2. Indication for or ongoing treatment with ACEI/ARB 3. History of hypotension 4. Hypertension (\>140/90 mmHg) \* 5. Planned cardiac surgery (CABG or valve) 6. Ongoing or planned pregnancy 7. Chronic renal failure with eGFR \< 30 mL/min/1.73m2 8. Neurocognitive disorder 9. History of hyperkalemia 10. Medication interacting with valsartan
Where it's running
-
Institut universitaire de cardiologie et de pneumologie de Québec-ULaval
Québec, Quebec, Canada Recruiting
Study contacts
- Study coordinator: Jonathan Beaudoin
- Email: jonathan.beaudoin@criucpq.ulaval.ca
- Phone: 1 (418) 656-8711
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Transcatheter Edge-to-Edge Repair for Atrial Functional Mitral Regurgitation
This trial tests whether a transcatheter edge-to-edge repair device helps people with atrial functional mitral regurgitation who still have symptoms despite standard therapy.
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Evaluating a procedure for treating atrial functional mitral regurgitation
This study looks at how well a new heart procedure works for people with atrial functional mitral regurgitation to see if it helps improve their health.
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Catheter ablation for people with persistent atrial fibrillation and severe atrial functional mitral regurgitation
This will test whether adding catheter ablation to usual medicines helps adults with persistent atrial fibrillation and moderate-to-severe or severe atrial functional mitral regurgitation reduce valve leakage and improve symptoms and outcomes.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.