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Can fasting diets reverse prediabetes? new trial aims to find out

NCT ID NCT07408791

Disease control Sponsor: DINA KEUMALA SARI Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study will test three types of intermittent fasting (5:2, alternate-day, and time-restricted eating) in 120 adults with prediabetes. Researchers will measure changes in blood sugar, cholesterol, body fat, and inflammation over 4-6 weeks. The goal is to see which fasting pattern works best to improve metabolic health and lower diabetes risk.

What this could mean

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

Active substance
Intermittent fasting (three patterns: 5:2, alternate-day, time-restricted)
What this could lead to
If successful, this could show that a specific intermittent fasting pattern helps control blood sugar and reduce diabetes risk in people with prediabetes.
What could go wrong
This is a small, early-stage trial with no phase, so results may not be conclusive. Fasting can be hard to stick with, and benefits may vary by individual.

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.

Expected to start

Feb 2026

An estimate. Start dates often move.

Expected to finish

Jun 2026

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

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: 1. Patients with prediabetes, defined according to ADA criteria (fasting plasma glucose 100-125 mg/dL or 2-hour postprandial glucose 140-199 mg/dL). 2. Willing to follow the fasting/diet intervention protocol for 4-6 weeks (depending on the study duration). 3. Signing informed consent and willing to be randomized into one of 3 intervention groups (Monday-Thursday Fasting/5:2, Alternate-Day Fasting/ADF, or Time-Restricted Fasting/IF). Exclusion Criteria 1. Diagnosis of type 2 diabetes mellitus. 2. Currently undergoing antidiabetic drug therapy (e.g., metformin, sulfonylurea, insulin). 3. Has a severe chronic disease (kidney failure, liver failure, heart failure, or eating disorder). 4. Pregnancy or breastfeeding. 5. History of eating disorders (anorexia nervosa, bulimia nervosa, or binge eating disorder). 6. Taking medications that affect glucose metabolism (e.g., systemic steroids, atypical antipsychotics, etc.). Diagnosis of type 2 diabetes

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Conditions

The condition(s) this trial relates to.

glucose intolerance prediabetes syndrome

As listed by the trial registrant

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

Pre diabetic

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

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Contacts and locations

Locations

  • Department of Internal Medicine - Endocrinology Division, Faculty of Medicine, Universitas Sumatera Utara / RSUP H. Adam Malik Medan

    Medan, North Sumatera, Indonesia

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