Experimental diabetes drug trial halted early

NCT ID NCT03895437

Terminated Disease control Sponsor: Tolerion, Inc. Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested an experimental drug called TOL-3021 in people with type 1 diabetes to see if it could help preserve the body's ability to produce insulin. The trial enrolled 78 participants aged 12 to 41 who had been diagnosed within the last 5 years. The study was terminated early, so results are limited.

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Conditions

The condition(s) this trial relates to.

diabetes mellitus type 1 diabetes mellitus type 1 diabetes mellitus 1

As listed by the trial registrant

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

DIABETES MELLITUS, TYPE 1

Contacts and locations

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Locations

Altman Clinical and Translational Research Institute UCSD

San Diego, California, 92093, United States
Baptist Health Research Institute

Jacksonville, Florida, 32258, United States
Barbara Davis Center - University of Colorado Denver

Denver, Colorado, 80045, United States
Children's Mercy Hospital

Kansas City, Missouri, 64108, United States
Diabetes and Glandular Disease Clinic, P.A.

San Antonio, Texas, 78229, United States
Emory University

Atlanta, Georgia, 30322, United States
Joslin Diabetes Center- Adult & Pediatric

Boston, Massachusetts, 02215, United States
MedStar Health Research Institute

Baltimore, Maryland, 21239, United States
MedStar Health Research Institute

Hyattsville, Maryland, 20782, United States
Mills-Peninsula Medical Center

San Mateo, California, 94401, United States
Mountain Diabetes and Endocrine Center

Asheville, North Carolina, 28803, United States
Naomi Berrie Diabetes Center, Columbia University

New York, New York, 10032, United States
Rocky Mountain Clinical Research

Idaho Falls, Idaho, 83404, United States
SUNY Upstate Medical University

Syracuse, New York, 13210, United States
Stanford University

Stanford, California, 94305, United States
University of California San Francisco

San Francisco, California, 94143, United States
University of Florida

Gainesville, Florida, 32610, United States
University of Iowa

Iowa City, Iowa, 52242, United States
University of Miami Diabetes Research Institute

Miami, Florida, 33136, United States
University of North Carolina Diabetes Care Center

Chapel Hill, North Carolina, 27517, United States
University of South Florida Diabetes Center

Tampa, Florida, 33612, United States
University of Virginia

Charlottesville, Virginia, 22903, United States
Yale University

New Haven, Connecticut, 06520, United States

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