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New supplement shows promise for prediabetes control

NCT ID NCT07210684

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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

Summary

This study tests whether a supplement called dihydroberberine (DHB) can improve blood sugar control, appetite, and energy in adults with prediabetes. About 54 participants will take either DHB or a placebo daily for 6 weeks. Researchers will measure blood sugar, insulin, and GLP-1 levels, and track how much time blood sugar stays in a healthy range.

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 54 people

The number the study aims to enrol. It can still change while the study runs.

Started

Aug 2025

Expected to finish

Mar 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

35 to 65 years

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: 1.35 - 65 years of age (inclusive). 2.BMI 25.0 - 35.0 kg/m2 (inclusive). 3.HbA1c 5.7% - 6.4% (39 - 47 mmol/mol, inclusive) measured at visit 1. 4.Participant has a score of 7 - 10 on the Vein Access Scale Assessment at visit 1. 5.Non-user or former user (daily use; cessation ≥12 months) of tobacco or nicotine products (e.g., cigarette smoking, vaping, chewing tobacco) within 12 months of visit 1, and has no plans to begin use during the study period. 6.Non-habitual users (i.e., daily or almost daily) of marijuana or hemp products, including CBD/THC products, and willing to abstain from use throughout the study period (topical creams/lotions are allowed). 7.Willing to wear a CGM sensor throughout study period and willing to adhere to instructions/ restrictions associated with the proper use and care of the CGM. 8.Willing to use personal smart phone with operating system capable of downloading and operating the Cronometer and Dexcom CGM apps for diet records and blood glucose, respectively. 9.Willing to adhere to all study procedures, including lifestyle considerations, and sign forms providing informed consent to participate in the study and authorization to release relevant protected health information to the Clinical Investigator. Exclusion Criteria: 1. Extreme Diets: Extreme dietary habits (e.g., ketogenic, vegan/vegetarian) at investigator's discretion. 2. Intense Exercise: Moderate-to-intense physical training (≥5 hours/week). 3. Weight Instability/Program: Recent weight changes (\>4.5 kg≤90 d) or current/planned weight change program. 4. Abnormal Labs: Abnormal lab test results of clinical significance at Visit 1 (one re-test allowed). 5. Uncontrolled Chronic Illness: Uncontrolled or clinically important pulmonary, cardiac, hepatic, renal, endocrine (T1D/T2D excluded), hematologic, immunologic, neurologic, psychiatric, or biliary disorders. 6. Clinically Important GI: Clinically important GI condition interfering with study product (e.g., IBD, celiac, weight loss surgery history). 7. Uncontrolled HTN: Uncontrolled hypertension (SBP≥160 mmHg and/or DBP≥100 mmHg). 8. Cancer History: History or presence of cancer in the prior 2 years (except non-melanoma skin cancer). 9. Active Infection: Signs/symptoms of active infection ≤5 d of Visit 1. 10. Anti-Hyperglycemics: Recent use (≤6 mo) of any prescription anti-hyperglycemic medication. 11. Other Supplements: Use of dietary supplements (other than approved multivitamin) ≤14 d of Visit 1. 12. Alcohol/Substance Abuse: History (≤12 months) of alcohol (\>14 drinks/week) or substance abuse. 13. Antibiotics: Antibiotic use ≤90 d of Visit 1. 14. Regular NSAIDs: Regular use (≥3 days/week≤30 d) of anti-inflammatory medications. 15. Steroid Use: Recent use (≤30 d) of oral/injectable steroids, or high-dose topical/inhaled steroids. 16. Unregistered Drug: Exposure to any non-registered drug product ≤30 d prior to Visit 1 17. Medication Instability: Unstable dose (≤90 d) of any other prescription medications (PRN excluded). 18. Psychiatric Hospitalization: Major affective/psychiatric disorder requiring hospitalization ≤12 months prior to Visit 1. 19. Recent Trauma/Surgery: Major trauma or any surgical event ≤30 d of Visit 1. 20. Recent GI Prep: Endoscopy or colonoscopy preparation ≤90 d prior to Visit 1. 21. Planned Surgery: Scheduled or planning elective surgical procedures during the study. 22. Female Status: Pregnancy, lactation, planning pregnancy, or unwillingness to use approved contraception. 23. Allergies: Known sensitivity or allergy to any study products or foods. 24. Investigator Discretion: Any condition that interferes with compliance, confounds results, or presents undue risk.

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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.

  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

    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

  • Merieux NutriSciences

    RECRUITING

    Addison, Illinois, 60101, United States

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