Type 1 Diabetes Clinical Trials

282 recruitingLast updated: June 18, 2026

There are 282 actively recruiting type 1 diabetes clinical trials across 40 countries. Studies span Not Applicable, Phase 2, Phase 1, Phase 3, Phase 4, Early Phase 1. Top locations include Aurora, Colorado, United States, New Haven, Connecticut, United States, San Francisco, California, United States. Updated daily from ClinicalTrials.gov.


Type 1 Diabetes Trials at a Glance

282 actively recruiting trials for type 1 diabetes are listed on ClinicalTrialsFinder across 6 cities in 40 countries. The largest study group is Not Applicable with 113 trials, with the heaviest enrollment activity in Aurora, New Haven, and San Francisco. Lead sponsors running type 1 diabetes studies include Sanofi, University of Colorado, Denver, and McGill University Health Centre/Research Institute of the McGill University Health Centre.

Browse type 1 diabetes trials by phase

Treatments under study

Understanding Type 1 Diabetes Clinical Trials

Teplizumab (Tzield), approved in 2022, became the first drug proven through clinical trials to delay the onset of type 1 diabetes in high-risk individuals — a historic breakthrough that marked the first time any therapy could alter the disease's course before it fully developed. This approval was built on years of trial data showing that a single 14-day course of the drug delayed clinical diagnosis by a median of two years. Clinical trials in type 1 diabetes are now pursuing even more ambitious goals, including preserving insulin-producing beta cells after diagnosis, developing artificial pancreas systems, and working toward biological cures through cell replacement therapies.

Why Consider a Clinical Trial?

Type 1 diabetes management has improved dramatically with modern insulin pumps, continuous glucose monitors (CGMs), and hybrid closed-loop systems, but even the best technology cannot fully replicate a healthy pancreas. People with type 1 diabetes still face the daily burden of blood sugar management, the risk of hypoglycemia and hyperglycemia, and long-term complications affecting the eyes, kidneys, nerves, and heart. Clinical trials offer access to therapies aimed at the root cause of the disease — the autoimmune destruction of insulin-producing beta cells — rather than just managing its symptoms. Trials in type 1 diabetes span an unusually wide range, from prevention studies in people who have autoantibodies but have not yet developed clinical diabetes, to newly diagnosed studies testing drugs that may preserve remaining beta cell function, to advanced technology trials evaluating next-generation closed-loop insulin delivery systems. There are also trials studying islet cell transplantation and stem cell-derived beta cells that could one day eliminate the need for insulin injections entirely. Regardless of how long you have had type 1 diabetes, there are likely trials relevant to your situation.

Frequently Asked Questions

Common questions about Type 1 Diabetes clinical trials

Yes. While some trials focus on newly diagnosed individuals, many are open to adults who have had type 1 diabetes for years. Technology trials for closed-loop systems and adjunctive therapy trials for drugs used alongside insulin are often open regardless of disease duration. Cell replacement trials are also studying long-term patients.

Many type 1 diabetes trials include pediatric participants, and these trials undergo additional ethical review specifically focused on child safety. Trials in children use age-appropriate dosing and monitoring protocols. Parental consent and, depending on age, the child's assent are both required before enrollment.

This depends entirely on the trial. Technology trials may require you to switch to the study device. Drug trials generally allow you to continue using your current insulin delivery system and CGM, though they may ask you to use a specific CGM for standardized data collection. Ask the study team about device requirements before enrolling.

Cure-oriented trials aim to restore the body's ability to produce insulin, through approaches like beta cell replacement or immune reprogramming. Management trials aim to improve blood sugar control, reduce complications, or decrease the burden of daily disease management. Both types are valuable and serve different goals.

TrialNet offers free autoantibody screening to relatives (ages 2.5 to 45) of people with type 1 diabetes. You can visit the TrialNet website to find a screening location or request an at-home test kit. If autoantibodies are detected, TrialNet provides monitoring and may offer enrollment in prevention trials.

Showing 120 of 282 trials

Recruiting
Not Applicable

Circadian Mechanisms, Glucose, and CV Risks in T1D

Type 1 Diabetes (T1D)
University of Illinois at Chicago100 enrolled1 locationNCT06624046
Recruiting
Phase 2

INHALE-1st: Afrezza® For Youth With Newly-Diagnosed Type 1 Diabetes

Type 1 Diabetes Mellitus
Mannkind Corporation100 enrolled10 locationsNCT07224321
Recruiting
Not Applicable

Impact of MEnstruation on Glycemic Response and Exercise In Females With Type 1 Diabetes

Type 1 DiabetesHypoglycemiaHyperglycaemia Due to Type 1 Diabetes Mellitus+1 more
University of Colorado, Denver150 enrolled1 locationNCT06297980
Recruiting
Early Phase 1

Simultaneous Measurement and Responsive Treatment - Part 2

Type 1 DiabetesType 1 Diabetes MellitusT1D+1 more
ClinSurge Research40 enrolled1 locationNCT07655076
Recruiting
Not Applicable

Clinical Study to Evaluate the Impact of the Accu-Chek SmartGuide CGM Solution on the Mean Change in Time in Range Compared With Self-Monitoring of Blood Glucose in Participants With Type 1 and Type 2 Diabetes Mellitus

Type 1 Diabetes MellitusType 2 Diabetes Mellitus
Hoffmann-La Roche270 enrolled18 locationsNCT06704672
Recruiting
Not Applicable

DASH-Obesity: Explainable AI for Family-Centric Personalized Weight Control in Adolescents and Young Adults With Obesity and Chronic Conditions

Obesity, OverweightAsthma (Diagnosis)Type 1 Diabetes+3 more
Adhera Health, Inc.280 enrolled1 locationNCT07638345
Recruiting

Accuracy of Continuous Glucose Monitors During the Perioperative Period in Youth With Type 1 Diabetes

Type 1 Diabetes
University of Colorado, Denver120 enrolled1 locationNCT06575842
Recruiting
Not Applicable

Primary Care Pragmatic, Real World Experience for Automated Insulin Delivery

Diabetes MellitusDiabetes Mellitus, Type 2Diabetes+8 more
University of Colorado, Denver240 enrolled2 locationsNCT07011147
Recruiting
Not Applicable

Pediatric Insulin Plan Calculator for T1DM Management

Type 1 Diabetes Mellitus (T1DM)Type 1 Diabetes MellitusT1DM+1 more
Sultan Qaboos University440 enrolled2 locationsNCT07427134
Recruiting
Phase 3

A Study to Investigate Efficacy and Safety of Teplizumab Compared With Placebo in Participants 1 to 25 Years of Age With Stage 3 Type 1 Diabetes

Type 1 Diabetes Mellitus
Sanofi723 enrolled159 locationsNCT07088068
Recruiting
Not Applicable

GATEWAY: Safety Evaluation of the MiniMed™ NMX8-AID System in Children and Adults Living With Diabetes

Type 1 Diabetes MellitusType 2 Diabetes Mellitus
Medtronic MiniMed, Inc.400 enrolled38 locationsNCT07228117
Recruiting
Phase 2

Rezpegaldesleukin (NKTR-358) in New Onset Type 1 Diabetes Mellitus

Type 1 Diabetes Mellitus
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)66 enrolled3 locationsNCT07142252
Recruiting
Phase 1

A Research Study Investigating the Effect of NNC0497-0040 in Healthy Participants, Participants With Overweight or Obesity, and Participants With Type 1 Diabetes With Overweight or Obesity

ObesityHealthy VolunteersOverweight+1 more
Novo Nordisk A/S146 enrolled1 locationNCT07578584
Recruiting
Not Applicable

Type 1 Diabetes REst for Metabolic Health

Type 1 Diabetes (T1D)Sleep Health
University of Colorado, Denver50 enrolled1 locationNCT06627504
Recruiting
Phase 2

FrexalimAB in Preservation of Endogenous insULIN Secretion Compared to Placebo in adUlts and Adolescents on Top of inSulin Therapy (FABULINUS)

Type 1 Diabetes Mellitus
Sanofi192 enrolled79 locationsNCT06111586
Recruiting
Not Applicable

Safety Evaluation of MODI, an Insulin Titration Algorithm, in Adults With Diabetes

Type 1 Diabetes (T1D)Type 2 Diabetes (T2D)
DreaMed Diabetes102 enrolled3 locationsNCT07599982
Recruiting
Not Applicable

NOURISH - A Healthcare-community Partnership to Improve Nutrition for Optimal Glycemic Control and Pregnancy Outcomes With Pregestational Diabetes

Type 1 DiabetesType 2 DiabetesPregnancy, High Risk
Ohio State University174 enrolled1 locationNCT07560813
Recruiting
Phase 1Phase 2

A Randomized Phase 1/2 Trial of Low Dose Anti-thymocyte Globulin (ATG) With Subsequent Adalimumab or Verapamil in New Onset Type 1 Diabetes

Type 1 DiabetesNew Onset
City of Hope Medical Center120 enrolled11 locationsNCT07061574
Recruiting
Phase 2

Trial of Semaglutide for Diabetic Kidney Disease in Type 1 Diabetes

Type 1 DiabetesDiabetic Kidney Disease
University of Washington60 enrolled4 locationsNCT05822609
Recruiting

Omnipod-5 A French Prospective Multicentric Study in Real World (Optimal-B)

Diabetes MellitusDiabetesType 1 Diabetes
Insulet Corporation152 enrolled22 locationsNCT07317102