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New study tests if cutting insulin boosts heart health in type 1 diabetes

NCT ID NCT06609356

Knowledge-focused Sponsor: Vanderbilt University Medical Center 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 early-phase study looks at whether reducing high insulin levels (common in type 1 diabetes) with an SGLT2 inhibitor can improve heart and blood sugar health. Researchers will compare people with type 1 diabetes, those with a mild genetic diabetes (GCK-MODY), and healthy volunteers. The goal is to understand how insulin levels affect blood vessel function and insulin sensitivity.

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 27 people

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

Started

Jul 2025

Expected to finish

Dec 2027

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

18 to 60 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: 18-60 years BMI: 18-28 kg/m² Weight: ≥ 50 kg T1DM Participants: Duration of T1DM: 1-30 years HbA1c: 5.7-7.5% Insulin Therapy: Using automated insulin delivery GCK-MODY Participants: HbA1c: 5.7-7.5% Genetic Confirmation: Positive GCK sequencing Control Participants: HbA1c: less than 5.5% \*\* Exclusion Criteria: Severe Hypoglycemia: ≥1 episode in the past 3 months Comorbidities: * Any hospital admissions for diabetic ketoacidosis in the past 6 months * SBP greater than 140 mmHg and DBP greater than 100 mmHg * eGFR by MDRD equation of less than 60 mL/min/1.73 m² * AST or ALT greater than 2.5 times ULN * Hct less than 35% Medications: * Any antioxidant vitamin supplement within 2 weeks before the study * Any systemic glucocorticoid * Antipsychotics * Atenolol, Metoprolol, Propranolol * Niacin * Any thiazide diuretic * Any oral contraceptive pill with greater than 35 mcg ethinyl estradiol * Growth hormone * Any immunosuppressant * Antihypertensive * Any antihyperlipidemic Other: * Pregnancy * Tanner stage less than 5 * Peri- or post-menopausal women * Active smoker T1DM Participants: Medications: Any diabetes medication except insulin C-peptide: greater than 0.7 ng/mL (fasting) GCK-MODY Participants: None specific

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Conditions

The condition(s) this trial relates to.

Insulin Resistance maturity-onset diabetes of the young type 2 type 1 diabetes mellitus

As listed by the trial registrant

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

Glucokinase-maturity onset diabetes of the young (GCK-mody) Healthy volunteer MODY2 diabetes Type 1 diabetes mellitus

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

  • Vanderbilt University Medical Center

    RECRUITING

    Nashville, Tennessee, 37232, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.