~603 spots leftby May 2027

Tirzepatide for Type 1 Diabetes and Obesity

(SURPASS-T1D-1 Trial)

Recruiting at147 trial locations
Age: 18+
Sex: Any
Travel: May Be Covered
Time Reimbursement: Varies
Trial Phase: Phase 3
Waitlist Available
Sponsor: Eli Lilly and Company
Pivotal Trial (Near Approval)
Prior Safety Data

Trial Summary

What is the purpose of this trial?

The main purpose of this study is to find out how well and how safely tirzepatide works in adults who have type 1 diabetes and obesity or overweight. Participation in the study will last about 49 weeks.

Research Team

C1

Call 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 9 AM - 5 PM Eastern time (UTC/GMT - 5 hours, EST)

Principal Investigator

Eli Lilly and Company

Eligibility Criteria

This trial is for adults with type 1 diabetes who are also overweight or obese. Participants will be involved in the study for approximately 49 weeks.

Inclusion Criteria

Have a body mass index (BMI) of ≥25 kilograms per square meter (kg/m2) at screening
Are of stable weight for at least 90 days prior to screening and agree to not start an intensive diet or exercise program during the study
Have an HbA1c value of 7.0% to 10.5% inclusive, at screening
See 1 more

Exclusion Criteria

Have experienced one or more events of severe hypoglycemia during the period of 90 days prior to screening and until randomization
I've been hospitalized twice for poor blood sugar control in the last 6 months.
I am being treated for diabetic eye problems.
See 2 more

Treatment Details

Interventions

  • Tirzepatide (GLP-1 Receptor Agonist)
Trial OverviewThe study is testing the effectiveness and safety of a medication called Tirzepatide compared to a placebo, which has no active ingredients.
Participant Groups
5Treatment groups
Experimental Treatment
Placebo Group
Group I: Tirzepatide Dose 4Experimental Treatment1 Intervention
Participants will receive tirzepatide SC
Group II: Tirzepatide Dose 3Experimental Treatment1 Intervention
Participants will receive tirzepatide SC
Group III: Tirzepatide Dose 2Experimental Treatment1 Intervention
Participants will receive tirzepatide SC
Group IV: Tirzepatide Dose 1Experimental Treatment1 Intervention
Participants will receive tirzepatide subcutaneously (SC)
Group V: PlaceboPlacebo Group1 Intervention
Participants will receive placebo SC

Find a Clinic Near You

Who Is Running the Clinical Trial?

Eli Lilly and Company

Lead Sponsor

Trials
2,708
Recruited
3,720,000+
Dr. Daniel Skovronsky profile image

Dr. Daniel Skovronsky

Eli Lilly and Company

Chief Medical Officer since 2018

MD from Harvard Medical School

David A. Ricks profile image

David A. Ricks

Eli Lilly and Company

Chief Executive Officer since 2017

BSc from Purdue University, MBA from Indiana University