Active Not Recruiting PHASE3 INTERVENTIONAL 5-arm NCT06914895

A Study of Tirzepatide (LY3298176) Compared With Placebo in Adults With Type 1 Diabetes and Obesity or Overweight (SURPASS-T1D-1)

A Phase 3, Multicenter, Randomized, Double-Blind, Placebo-Controlled, Parallel-Group Study Evaluating the Efficacy and Safety of Tirzepatide Once Weekly Compared to Placebo in Adult Participants With Type 1 Diabetes and Obesity or Overweight

Sponsor: Eli Lilly and Company

Conditions Obesity Overweight Type 1 Diabetes

Interventions Placebo Tirzepatide

Updated 10 times since 2025 Last updated: Feb 13, 2026 Started: Apr 25, 2025 Primary completion: Nov 30, 2026 Completion: Dec 31, 2026

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This PHASE3 trial investigates Obesity and Overweight and is currently ongoing. Eli Lilly and Company leads this study, which shows 10 recorded versions since 2025 — indicating substantial longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

10 versions recorded

Feb 2026 — Present [monthly]

Active Not Recruiting PHASE3

Status: Recruiting → Active Not Recruiting
Jan 2026 — Feb 2026 [monthly]

Recruiting PHASE3
Dec 2025 — Jan 2026 [monthly]

Recruiting PHASE3
Nov 2025 — Dec 2025 [monthly]

Recruiting PHASE3
Oct 2025 — Nov 2025 [monthly]

Recruiting PHASE3

▶ Show 5 earlier versions

Sep 2025 — Oct 2025 [monthly]

Recruiting PHASE3
Aug 2025 — Sep 2025 [monthly]

Recruiting PHASE3
Jul 2025 — Aug 2025 [monthly]

Recruiting PHASE3
Jun 2025 — Jul 2025 [monthly]

Recruiting PHASE3
May 2025 — Jun 2025 [monthly]

Recruiting PHASE3

First recorded

Apr 2025

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Eli Lilly and Company

Data source: Eli Lilly and Company

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

A Coruña, Spain , Albany, United States , Atlanta, United States , Aurora, United States , Austin, United States , Bad Mergentheim, Germany , Barcelona, Spain , Bayamón, Puerto Rico , Beer Yaacov, Israel , Beersheba, Israel and 113 more locations