Clinical trial Recruiting at 1 site Phase2; Phase3 Interventional Ages 18 to 85

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

PhasePhase2; Phase3
Study typeInterventional
Ages18 Years to 85 Years
SexAll
Enrollment50 (estimated)
SponsorLaval University
Academic / other
Locations1 site (Québec, Quebec)
StatusRecruiting
StartedJuly 13, 2026
Main results expectedMay 1, 2029
Study endsDecember 1, 2029
Registry record updatedAugust 20, 2026
Trial IDNCT07539298 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

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 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.