New supplement shows promise for prediabetes control
NCT ID NCT07210684
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 Hide 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.
Get updates
Get notified about this study
Sign up to get updates when this study changes or when new studies for Prediabetes are added.
Genom att skicka in godkänner du våra Användarvillkor
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.
-
The places running it
1 site. The list below names each one and where it is.
-
The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
-
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
RECRUITINGAddison, Illinois, 60101, United States
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Can four minutes of hard exercise match a longer workout for blood sugar?
- Can a Plant-Based diet program help patients lose weight and improve heart health?
- Can a health coach in your patient portal help you lose weight?
- Glucose sensor may flag diabetes risk in cystic fibrosis
- Diabetes drug tested to stop prediabetes in its tracks
- Can a 9-Hour eating window reset blood sugar and body rhythms?