Compare peptides

Compare peptides

This is a side-by-side of what is documented, not a ranking. Different compounds are studied for different things, in different people, at different amounts. A row that looks stronger for one compound does not make it the better choice for anyone.

Aleniglipron (GSBR-1290)Retatrutide
Highest evidence tier on the pageE2 Human clinical evidence
Registered or peer-reviewed human trial with reported results.
E2 Human clinical evidence
Registered or peer-reviewed human trial with reported results.
Regulatory statusNot statedIn clinical development, not approved
Research areaMetabolic and incretinMetabolic and incretin
Investigational pipelineObesityNot stated
Regulator-approved dose on fileNo approved doseNo approved dose
Molecular formulaC49H55FN9O6P, per PubChem (CID 164809721)Not reliably established
Molar massApproximately 916 g/mol, calculated from the PubChem formula; not independently cross-confirmedNot reliably established
CAS number2685823-26-9, per commercial chemical vendor listings; not independently cross-confirmed against a regulatory database2381089-83-2
Registered trials on this siteNone linked yet7 in the tracker
Furthest registered phaseNot statedPhase 3
Trials currently activeNot stated0
Trial sponsorsNot statedEli Lilly and Company
Published trials covered on its pageNot stated7
Amounts studied in those trialsNot statedNCT04867785: Retatrutide 0.5, 4, 8 or 12 mg once weekly, dulaglutide 1.5 mg once weekly, or placebo; the 4 mg and 8 mg maintenance doses were each given twice, differing only in starting dose for 36 weeks
NCT04881760: Retatrutide 1, 4, 8 or 12 mg once weekly, or placebo, across seven arms; the 4 mg and 8 mg arms each ran with a 2 mg or a 4 mg starting dose for 48 weeks
TRIUMPH-1, NCT05929066: Retatrutide 4, 9 or 12 mg once weekly after a 16 week fixed escalation, or placebo, 1:1:1:1 for 80 weeks, with an optional 24 week extension for about 500 participants
As reported on the compound page. Amounts are not comparable between compounds.
What is not knownNot statedIts molecular weight. Figures circulate in chemical catalogues, but no primary publication or regulatory document names one, so none is asserted here. Whether it prevents anything. No cardiovascular or kidney outcome data exist. TRIUMPH-Outcomes, 10,000 participants across 743 sites, has a primary completion date of...

Full pages: Aleniglipron (GSBR-1290) and Retatrutide. See also the clinical trial tracker and how we grade evidence.

Educational reference, not medical advice. Trial data from ClinicalTrials.gov. Everything else is drawn from the compound pages on this site, each of which cites its sources.