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Could a higher metformin dose help young people with diabetes?

NCT ID NCT06120881

Disease control Sponsor: University of California, San Francisco Source: ClinicalTrials.gov ↗

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 compares the usual dose of metformin (1000 mg twice a day) with a higher dose (1350 mg twice a day) in 20 youth aged 10-21 with type 2 diabetes. The goal is to see if the higher dose is acceptable and feasible, and whether it improves blood sugar control. Participants will wear a continuous glucose monitor for 6 weeks to track their glucose levels.

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

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 20 people

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

Started

Apr 2024

Expected to finish

Dec 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

10 to 21 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Age 10-21 years * Provider diagnosis of T2D * Stable medication regimen for 2 weeks before screening visit (No addition or removal of medications and no more than 20% change in insulin dose) * ≥ 1 month from T2D diagnosis * Taking regular metformin (not extended-release formula) * Ability to wear CGM for a total of 6 weeks while in the study. * English or Spanish speakers. * Willing to abide by recommendations and study procedures. * Willing and able to sign the Informed Consent Form (ICF) and/or has a parent or guardian willing and able to sign the ICF. * Participant and parent(s)/guardian(s) willingness to participate in all training sessions as directed by study staff. Written informed consent (and assent when applicable) obtained from subject or subject's legal representative and ability for subject to comply with the requirements of the study. Exclusion Criteria: * Pancreatic autoantibody positivity (GAD-65, insulin, IA-2, ICA 512, Zn-T8). * Known history of ongoing renal or hepatic disease. * Known history of significant mental illness or developmental delay impacting the ability to complete study activities independently.

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Conditions

The condition(s) this trial relates to.

type 2 diabetes mellitus

As listed by the trial registrant

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

Type 2 diabetes

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    2 sites. 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

  • UCSF Benioff Children's Hospital Oakland, Pediatric Diabetes Clinic

    RECRUITING

    Oakland, California, 94609, United States

  • UCSF Benioff Children's Hospital San Francisco, Madison Clinic for Pediatric Diabetes

    RECRUITING

    San Francisco, California, 94158, United States

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