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‹ Tue · 21 Apr 2026
Tirzepatide in T1D+obesity; expanding indication SR

Tirzepatide as Adjunct to Insulin in Adults With Type 1 Diabetes and Overweight or Obesity: A Systematic Review of Randomized and Real-World Evidence

Tirzepatide shows promise as an insulin add-on for Type 1 diabetes patients with obesity, addressing a previously underserved treatment gap.

This systematic review synthesizes randomized and real-world evidence for tirzepatide use alongside insulin in adults with Type 1 diabetes and obesity, a therapeutic gap with high unmet need. The review supports the emerging role of tirzepatide as an insulin adjunct in T1D, extending its established T2D benefits to a more complex patient population.

What the study was

Study design
Systematic review (RCT and real-world evidence)
Population
Adults with Type 1 diabetes and overweight or obesity on insulin
Category
Treatment Innovation
Maturity
Validated
Journal
Endocrinology, Diabetes & Metabolism

Why it surfaced

SR on tirzepatide in T1D+obesity fills a critical evidence gap; T1D+obesity is an underserved population with high cardiometabolic burden and no licensed GLP-1/GIP options in most markets.

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