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Can a Plant-Based diet calm the immune system after a heart attack?

NCT ID NCT06209723

Disease control Sponsor: Radboud University Medical Center Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 14, 2026 · Last updated Aug 14, 2026

Summary

This trial investigates whether a five-week vegetarian diet can dampen the inflammatory response of the immune system in people who recently had a heart attack, as well as in healthy volunteers. Participants will follow a vegetarian diet for five weeks, then return to their usual eating habits for six weeks, and then switch to the other diet for another five weeks. Blood samples are taken at several points to measure markers of inflammation, offering a glimpse into how food might influence immune health.

What this could mean

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

Active substance
A vegetarian diet followed for five weeks
What this could lead to
If a vegetarian diet reduces inflammation, it could become a simple lifestyle recommendation to support recovery after a heart attack.
What could go wrong
This is a small, early-stage trial, and the diet's effect on immunity may be modest or vary between individuals. Adherence to the diet is also a challenge.

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 120 people

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

Started

Jan 2024

Expected to finish

Sep 2027

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 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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 for patients: * Acute myocardial infarction (STEMI/NSTEMI) with a clear culprit lesion on angiography and successful primary percutaneous coronary intervention (PCI) \<1 week before randomisation * Body mass index between 18.5 and 35 kg/m2 * Written informed consent Inclusion Criteria for healthy volunteers (life partners / souses) * Body mass index between 18.5 and 35 kg/m2 * Written informed consent Exclusion Criteria for patients and healthy volunteers: * Already on a vegetarian or vegan diet * Previous myocardial infarction * Diabetes Mellitus * Medical history of any disease associated with immune deficiency (either congenital or acquired, including chemotherapy, chronic steroid use, organ transplant) * Use of immunomodulatory drugs * Vaccination less than one month before start of intervention * Clinically significant infections within 1 months prior to start of intervention (defined as fever \>38.5 degrees Celsius) * Active malignant haematological disease * Known eating disorder (e.g., Anorexia nervosa, Bulimia nervosa) Exclusion Criteria for healthy volunteers \- Use of lipid lowering therapy

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Conditions

The condition(s) this trial relates to.

acute myocardial infarction myocardial infarction

As listed by the trial registrant

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

Myocardial infarction

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

  • Radboudumc

    RECRUITING

    Nijmegen, Netherlands

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