Clinical trial Recruiting at 1 site Interventional Ages 55 to 70

Ketone supplements and insulin sensitivity in overweight older adults

Official title: KETO-SENSE - Effects of Ketone Bodies on Insulin Sensitivity

Run by University of Aarhus · NCT07359625 · Data updated 2026-11-12

This study will test whether an oral ketone supplement, given with or without growth hormone, can improve insulin sensitivity and energy use in overweight adults aged 55–70.

More Insulin Resistance trials

Quick facts

Study typeInterventional
Ages55 Years to 70 Years
SexAll
Enrollment10 (estimated)
SponsorUniversity of Aarhus
Academic / other
Locations1 site (Aarhus N)
StatusRecruiting
StartedDecember 2, 2025
Main results expectedApril 2027
Study endsApril 2028
Registry record updatedJanuary 22, 2026
Trial IDNCT07359625 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are adults 55–70 years old with BMI 25–35 kg/m2 who are otherwise healthy (well-controlled hypertension allowed) and able to attend four in-person visits in Aarhus, Denmark.

Probably not a fit

People with active acute or chronic illnesses, uncontrolled medical conditions (including untreated hypertension or diabetes), or those outside the 55–70 age or BMI 25–35 range are unlikely to be eligible or benefit from participation.

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

What this trial studies

In a randomized crossover design, ten overweight but otherwise healthy adults (age 55–70, BMI 25–35) will each complete four study visits at Aarhus University Hospital and receive four different interventions in random order. Interventions are: growth hormone plus ketone supplement, growth hormone plus placebo, saline infusion plus ketone supplement, and saline plus placebo. Advanced PET/CT imaging, indirect calorimetry, and tissue biopsies will be used to measure fat breakdown, tissue glucose uptake, and whole-body energy expenditure after each intervention. The within-subject crossover design is intended to isolate the acute metabolic effects of ketone supplementation and interactions with growth hormone.

Why it matters

Potential benefit: If successful, ketone supplementation could offer a non-pharmaceutical means to improve insulin sensitivity and metabolic health in older adults with overweight.

How similar studies have gone: Some small human studies have shown that exogenous ketone supplements produce acute changes in fuel use and substrate metabolism, but clear evidence that they improve insulin sensitivity in humans is limited, so this approach remains relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age range: 55-70 yr
* BMI: 25 - 35 kg/m2

Exclusion Criteria:

\- Any evidence of acute or chronic illnesses, apart from well-controlled hypertension, that is judged by the investigators to impact the study

Where it's running

  • Aarhus University Hospital
    Aarhus N, Denmark
    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.