Research

Hormonal

GLP-1/GIP/Glucagon triple-agonists (e.g., Retatrutide) produce superior weight loss (up to 24.2%) compared to dual-agonists and GLP-1 monotherapies by simultaneously reducing food intake and increasing energy expenditure.

Retatrutide is a once-weekly injection that targets three hormones (GLP-1, GIP, Glucagon) to maximize weight loss. In clinical trials, doses up to 12mg resulted in an average 24.2% body weight loss over 48 weeks, outperforming single-hormone drugs. While it causes mild gastrointestinal side effects, the significant weight reduction makes it a highly effective option for obesity management.

GoodSupportsHIGH confidence
A dose of 1 to 8 mg once weekly was given for 48 weeks... The mean percentage weight reduction in the retatrutide groups at 48 weeks were 8.7%, 17.1%, 22.8%, and 24.2% for the groups treated with 1 mg, combined 4 mg, combined 8, and 12 mg, respectively.
Kibret Enyew Belay et al. · Journal of the Endocrine Society · 2024

Why this rating

Based on Phase 2 RCTs (LY3437943) with clear dose-response data, though Phase 3 results are noted as ongoing.

Source

Innovative Glucagon-based Therapies for Obesity

Kibret Enyew Belay et al. · Journal of the Endocrine Society · 2024

DOI 10.1210/jendso/bvae197

narrative_reviewCited 4×
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DOI resolved against Crossref · corpus check 2026-06-10

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