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Safety Concerns Over Doctors Prescribing an Experimental Weight-Loss Drug

National reporting on prescribing and access to an unapproved investigational drug shows how retatrutide is entering mainstream safety coverage.

CBS Evening News channel2:11 runtime10K views when checked

Published Jun 9, 2026. Metadata checked Jul 12, 2026.

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Primary and peer-reviewed records

Retatrutide for Obesity: A Phase 2 Trial

New England Journal of Medicine · Peer reviewed · 2023-06-26 · accessed 2026-07-01

Phase 2 randomized trial of retatrutide (LY3437943), a triple GLP-1/GIP/glucagon receptor agonist, showing dose-dependent weight loss up to 17.5% at 48 weeks in adults with obesity.

TRIUMPH Phase 3 Trial Program for Retatrutide: ClinicalTrials.gov

ClinicalTrials.gov / U.S. National Library of Medicine · Primary regulatory · 2023-07-01 · accessed 2026-07-01

ClinicalTrials.gov registry entry for the TRIUMPH Phase 3 trial program evaluating retatrutide for obesity, sponsored by Eli Lilly. Retatrutide is not FDA-approved for any indication.