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Olive oil may boost heart rehab for heart failure patients

NCT ID NCT07644806

Symptom relief Sponsor: Old Dominion University Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether taking at least 4 tablespoons of extra-virgin olive oil daily for 12 weeks, alongside standard cardiac rehab, is feasible and helpful for people with heart failure with reduced ejection fraction. Researchers will measure changes in diet, exercise capacity (6-minute walk test), and quality of life in 40 participants. The goal is to see if this simple dietary addition can improve outcomes.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
extra-virgin olive oil
What this could lead to
If it works, this could show that adding olive oil to standard cardiac rehab helps heart failure patients exercise more and feel better.
What could go wrong
This is a very small, early feasibility study with only 40 participants. It may not show clear benefits, and results may not apply to all heart failure 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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Jul 2026

An estimate. Start dates often move.

Expected to finish

Mar 2028

An estimate. End dates often move.

Lead sponsor

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.

Ages

18 to 85 years

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show 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: * Diagnosed with HFrEF with left ventricular ejection fraction ≤35 %. * Referred to and enrolled in the standard cardiac rehabilitation program at Sentara Cardiac Rehabilitation Center, but has not yet initiated/started cardiac rehabilitation (i.e., has not attended the first cardiac rehab session). * Able and willing to comply with study procedures and provide informed consent. Exclusion Criteria: * Co-morbidity expected to limit survival (e.g., terminal illness). * End-stage renal disease. * Unstable fluid overload. * Current pregnancy (self-disclose). * Habitual use of EVOO greater than 4 tablespoons per day. * Known allergy or sensitivity to olive oil or its components. * Unwillingness or inability to incorporate EVOO or dietary recommendations.

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Conditions

The condition(s) this trial relates to.

cardiomyopathy systolic heart failure

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Heart failure with reduced ejection fraction (hfref)

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Strelitz Diabetes Center (Williams Hall)

    Norfolk, Virginia, 23510, United States

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