Research

Hormonal

Retatrutide, a triple hormone agonist (GLP-1, GIP, glucagon), administered subcutaneously once weekly, produces substantial, progressive weight loss (up to 24.2%) and HbA1c reduction in adults with obesity and type 2 diabetes, significantly outperforming placebo and, in some metrics, the dual agonist tirzepatide.

Retatrutide is a once-weekly injection that combines three hormones to help you lose significant weight and lower blood sugar. It works best if you start with a low dose and increase it slowly to manage stomach side effects. While it causes more nausea than other drugs, it leads to greater weight loss, potentially helping you reach a level of weight loss that can put type 2 diabetes into remission. You should expect regular check-ins and lifestyle counseling alongside the medication.

ModerateSupportsMEDIUM confidence
In summary, retatrutide is highly effective drug in causing substantial weight loss and HbA1c reduction. ... At 48 weeks, the decrease was 8.7% to 24.2% versus 2.1% with placebo. ... retatrutide may be superior to tirzepatide in both parameters, particularly weight loss
Nasser Mikhail · Current Research in Diabetes & Obesity Journal · 2023

Why this rating

Based on Phase 2 randomized controlled trials (n=338 obesity, n=281 diabetes), which are robust but not yet Phase 3 large-scale outcomes data.

Source

Retatrutide as a Novel Treatment for Obesity and Type 2 Diabetes

Nasser Mikhail · Current Research in Diabetes & Obesity Journal · 2023

DOI 10.19080/crdoj.2023.16.555949

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DOI resolved against Crossref · corpus check 2026-06-10

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