Retatrutide (LY3437943)

Triple agonist of GLP-1, GIP and glucagon receptors — the newest generation of metabolic peptides.

Retatrutide is the most complex molecule in metabolic research to date: it activates three receptor pathways at once (GLP-1, GIP and the glucagon receptor), where older compounds worked with one or two.

In a Phase 2 trial published in the New England Journal of Medicine, participants on the highest dose lost an average of 24.2 % of body weight over 48 weeks — and were still losing when the trial ended. Studied in the context of energy expenditure, lipolysis and satiety regulation.

Compound identity

Development codeLY3437943
SequenceYXQGTFTSDY SILLDKKAQX AFIEYLLEGG PSSGAPPPSX = α-aminoisobutyric acid (Aib). The molecule is further chemically modified (an attached fatty acid chain), so the molecular formula does not match the plain sequence.
Chain length39 amino acids
Molecular formulaC221H342N46O68
Molecular weight4,731.34 g/mol
CAS number2381089-83-2
Data sourceKEGG DRUG D12430

Available forms

Article about this compound

Retatrutide: Mechanism of Action and Trial Results

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This information is strictly educational and summarises publicly available research. It is not medical advice. All compounds are intended exclusively for laboratory and research purposes, are not medicines or food supplements, and are not intended for human consumption.