Can shedding pounds help heart failure patients move better?
NCT ID NCT06930495
First seen Jun 25, 2026 · Last updated Sep 04, 2026 · Updated 3 times
Summary
This observational study follows 95 people with heart failure and preserved ejection fraction who are already receiving weight loss treatment as part of their standard care. Researchers will measure muscle blood flow, fat content, and inflammation before and after at least 7% weight loss. The goal is to understand how excess weight harms muscle and heart function, and whether weight loss can reverse some of that damage.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Weight loss medications (incretin-based drugs) as part of standard care
- What this could lead to
- If successful, this study could clarify how weight loss improves muscle function and exercise tolerance in people with heart failure and obesity.
- What could go wrong
- This is an observational study, not a controlled trial, so it cannot prove cause and effect. Results may not apply to all HFpEF patients.
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.
- Participants
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About 95 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2024
- Expected to finish
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Jun 2028
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Group 1: Patients with HFpEF \- UTSW HFpEF clinic: lead by Dr. Ambarish Pandey Group 2: non-HFpEF controls * subjects in the UTSW volunteer research registry who meet inclusion/exclusion criteria * community outreach (emailers, word of mouth, referrals)
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
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: Group 1: Patients with HFpEF * Diagnosis of heart failure or clear heart failure hospitalization * Stable ejection fraction \> 0.50 * Objective evidence of elevated left ventricular filling pressure by one of the following i) pulmonary capillary wedge pressure ≥25 mmHg during supine cardiopulmonary exercise testing or ii) a change in pulmonary capillary wedge pressure of \>15 mmHg during upright exercise * Must be candidates for pharmacological incretin-based directed intensive weight loss therapies as part of their SOC * BMI\>32kg/m2 * ≥45 years old * Incretin naïve for 6 months Group 2: Non-HFpEF controls * Adults who do not have heart failure with preserved ejection fraction * Age ≥ 18 years Exclusion Criteria: Group 1 * Prior history of reduced ejection fraction (\<50%) * Infiltrative cardiomyopathy * NYHA Class IV chronic heart failure * Left bundle branch block * Unstable coronary artery disease * Uncontrolled arrhythmia * CKD 4 or higher * Currently taking incretin-based drugs (SGL2, GLP1) * Severe valvular heart disease * BMI \> 50kg/m2 * Other debilitating illness that would preclude participation * Any contra-indication to MRI * Any contra-indication to muscle biopsies. Group 2 * Age \< 18 years * BMI \> 50 kg/m2 * Atrial fibrillation with poorly controlled heart rate * PDE5 inhibitor use * Severe valvular disease * Severe COPD * CKD 4 or higher * Currently taking incretin-based drugs (SGL2, GLP1) * Any contra-indication to MRI * Any contra-indication to muscle biopsies.
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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.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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
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University of Texas Southwestern Medical Center
Dallas, Texas, 75390, United States
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