Obesity

Association between plausible genetic factors and weight loss from GLP1-RA and bariatric surgery

Nat MedPublished Multiancestry biobank genetic association study

Authors' conclusion

Our findings suggest known genetic factors have limited impact on GLP1-RA effectiveness with respect to weight change and confirm treatment efficacy across ancestry groups.

Study context

Population
Individuals from 9 multiancestry biobank studies across 6 countries treated with GLP1-RA or bariatric surgery (BS)
Participants
10,960 individuals9 biobank studies
Comparison
Known genetic factors vs weight loss after GLP1-RA or BS
Outcome
Weight change and its association with known genetic factors
Methodological details9 biobank studies, 6 countries
  • 9 biobank studies
  • 6 countries

Main finding

As reported in the abstract

Association of genetic factors with weight loss

Higher BMI polygenic score modestly linked to lower weight loss after BS, per s.d. (P = 1.24 × 10-4); effect attenuated in sensitivity analyses

+0.7%

Further findings

OutcomeGLP1-RABS
Average weight changeaverage −3.93% or −6.00%−21.17%
  • Average weight change: GLP1-RA: between 6 and 12 months, depending on outcome definition
  • Average weight change: BS: between 6 and 48 months

Average weight change

Modest ancestry-based differences in GLP1-RA weight change

Original publication

Association between plausible genetic factors and weight loss from GLP1-RA and bariatric surgery. Nat Med. Published 18 April 2025. doi:10.1038/s41591-025-03645-3

Composed by AI from the published abstract and checked against it. How Briefs are made →

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