Effects of Exogenous Ketones on Cognitive Function in Older Adults With Prediabetes?
Public ClinicalTrials.gov record NCT07546409. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Can Exogenous Ketone Supplementation Compensate for Glucose Hypometabolism and Improve Cognitive Processing Speed in Veterans With Prediabetes?
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Brief Summary The goal of this clinical trial is to learn whether older adults with prediabetes, but no diagnosed cognitive impairment, show early changes in brain energy use and thinking speed compared to older adults with normal blood sugar levels. The study will also test whether a single dose of an exogenous ketone supplement can improve brain energy use and cognitive processing speed. The main questions it aims to answer are: Do older adults with prediabetes have lower brain glucose uptake and slower cognitive processing speed compared to those with normal glucose levels? Does a single dose of an exogenous ketone monoester supplement improve cognitive processing speed and brain glucose uptake? Researchers will compare older adults with prediabetes to older adults with normal glucose levels to determine whether differences exist in brain glucose metabolism and cognitive performance. In a subset of participants, researchers will also compare brain and cognitive outcomes before and after consuming a ketone monoester supplement (DeltaG, Oxford, England). Participants will: Complete metabolic testing to determine glucose status Undergo brain imaging using fluorodeoxyglucose positron emission tomography combined with magnetic resonance imaging (18FDG-PET/MRI) while performing a cognitive processing speed task Consume a single dose of a commercially available ketone monoester supplement during one study visit Complete cognitive testing during imaging to measure processing speed and brain activity The results of this study will help determine whether early metabolic dysfunction is linked to reduced brain energy use and whether ketones can temporarily support brain function in individuals at risk for dementia.
Study identification
- NCT ID
- NCT07546409
- Recruitment status
- Recruiting
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 20 participants
Conditions and interventions
Conditions
Interventions
- Ketone Monoester (KE) Dietary Supplement
- Placebo Dietary Supplement
Dietary Supplement
Eligibility (public fields only)
- Age range
- 60 Years to 75 Years
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- May 20, 2025 (Actual)
- Primary completion
- May 31, 2027 (Estimated)
- Completion
- May 31, 2027 (Estimated)
- Last update posted
- Jul 2, 2026
2025 – 2027
United States locations
- U.S. sites
- 2
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| UAB Comprehensive Cancer Center | Birmingham | Alabama | 35205 | Recruiting |
| Webb Nutrition Sciences Building | Birmingham | Alabama | 35205 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT07546409, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Jul 2, 2026 · Synced Oct 20, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT07546409 live on ClinicalTrials.gov.