Diet and exercise combo tested to stop prediabetes becoming diabetes
NCT ID NCT07326891
First seen Jun 24, 2026 · Last updated Sep 16, 2026 · Updated 5 times
Summary
This study looks at whether adding supervised cycling and rowing to a Mediterranean diet improves blood sugar control better than diet alone in women with prediabetes. Thirty women will be split into three groups based on their current blood sugar levels. They will follow the diet for 12 weeks, with some also doing exercise three times a week. The goal is to find a practical way to prevent type 2 diabetes.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Mediterranean diet and supervised cycling and rowing exercise
- What this could lead to
- If it works, this could point toward a practical lifestyle program to prevent type 2 diabetes in women with prediabetes.
- What could go wrong
- This is a small, non-randomized study with only 30 women, so results may not apply to everyone. The diet and exercise require strict adherence, which may be hard to maintain long-term.
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
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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
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About 30 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2025
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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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
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22 to 55 years
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Having a diagnosis of prediabetes (within the last 1 year) * Impaired Fasting Glucose (IFG) 100-125 mg/dl * OGTT result 2-hour postprandial Impaired Glucose Tolerance (IGT) 140-199 mg/dl * HbA1c 5.7-6.4% * Being between 22-55 years of age * Being female * Body Mass Index 18-34.9 kg/m2 * Meeting the criteria in the American College of Sports Medicine (ACSM) and American Heart Association (AHA) cardiovascular disease risk assessment scoring system * Not engaging in regular planned exercise or physical activity (sedentary) Exclusion Criteria: * Diabetes * Being pregnant * No self-reported low iron concentrations or anaemia * Use of medication, insulin, or weight loss injections known to affect lipid and glucose metabolism * Presence of cardiovascular disease * Current smoking or excessive alcohol consumption * Presence of abnormal electrocardiogram (ECG) * Presence of autonomic neuropathy * Presence of uncontrolled hypertension (systolic blood pressure \>135 mmHg, diastolic blood pressure \>85 mmHg) * Joint-muscle-bone injury limiting exercise
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Marmara University
RECRUITINGBeykoz, Istanbul, Turkey (Türkiye)
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