Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 18 to 50

Effects of ketones on heart recovery after intense exercise

Official title: Prospective Study Investigating the Effects of Intense Endurance Exercise on the Heart Muscle and the Effect of Exogenous Ketones on Acute Changes and Recovery of the Heart Muscle.

Run by Jessa Hospital · NCT06715748 · Data updated 2026-11-12

This study is testing if taking ketones can help healthy cyclists' hearts recover better after a tough three-hour ride.

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Quick facts

PhasePhase 4
Study typeInterventional
Ages18 Years to 50 Years
SexAll
Enrollment30 (estimated)
SponsorJessa Hospital
Academic / other
Locations1 site (Hasselt, Limburg)
StatusRecruiting
StartedOctober 17, 2024
Main results expectedDecember 22, 2026
Study endsDecember 22, 2026
Registry record updatedDecember 4, 2024
Trial IDNCT06715748 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are healthy recreational male and female cyclists aged 18 to 50 with high fitness levels.

Probably not a fit

Patients with cardiovascular, metabolic, or respiratory diseases, or those with cardiovascular risk factors will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This research evaluates how prolonged and intense exercise impacts heart muscle inflammation and recovery. Participants, who are healthy recreational cyclists, will cycle for three hours, with two hours at an intense pace, while their heart function is monitored. The study aims to determine if exogenous ketones can influence the occurrence and recovery of cardiac abnormalities following intense exercise. Advanced imaging techniques will be used to assess myocardial edema and cardiac function before, immediately after, and 20-24 hours post-exercise.

Why it matters

Potential benefit: If successful, this study could lead to improved recovery strategies for athletes and individuals engaging in intense exercise, potentially reducing the risk of heart damage.

How similar studies have gone: Previous studies have shown correlations between exercise-induced cardiac damage and recovery, but this specific approach using exogenous ketones is novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* healthy recreational male and female cyclists between 18 and 50 years old, who have signed an informed consent form.
* Participants will be included if they achieve a VO2-max/kg value above P90, corrected for age and sex, based on the reference value by E. Van der Steeg et al.

Exclusion Criteria:

* Cardiovascular, metabolic, or respiratory diseases
* Participants with cardiovascular risk factors
* Contraindications for maximum exercise
* Contraindications for MRI.

Where it's running

  • Jessa Hospital
    Hasselt, Limburg, Belgium
    Recruiting

Study contacts

Similar studies

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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.
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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.