Genetic Variants in the GLP-1 Receptor Affect How Well Oral Semaglutide Works
Two GLP-1 receptor gene variants (rs6923761 and rs761387) influence the clinical response to oral semaglutide in type 2 diabetes patients.
Quick Facts
What This Study Found
GLP1R polymorphisms rs6923761 and rs761387 significantly influenced clinical response to oral semaglutide in a retrospective cohort of T2DM patients.
Key Numbers
How They Did This
Retrospective cohort study of adult T2DM patients on oral semaglutide, genotyped for GLP1R rs6923761 and rs761387 polymorphisms and assessed for treatment response.
Why This Research Matters
Pharmacogenomics could allow personalized GLP-1 drug prescribing, ensuring patients receive the medication most likely to work for their genetic profile.
The Bigger Picture
This moves GLP-1 therapy toward precision medicine, where genetic testing guides drug selection rather than trial-and-error prescribing.
What This Study Doesn't Tell Us
Retrospective design with likely modest sample size. Single oral formulation studied — results may not apply to injectable semaglutide. Ethnic/population genetics may vary.
Questions This Raises
- ?Should GLP-1 receptor genotyping become standard before prescribing?
- ?Do these variants also affect response to injectable GLP-1 drugs or tirzepatide?
Trust & Context
- Key Stat:
- 2 SNPs affect response GLP1R rs6923761 and rs761387 variants influenced oral semaglutide efficacy
- Evidence Grade:
- Retrospective pharmacogenomic cohort — provides initial evidence for genetic influences on drug response but needs prospective validation.
- Study Age:
- Published in 2026; advances pharmacogenomics of GLP-1 therapy.
- Original Title:
- Influence of GLP1 receptor rs6923761 and rs761387 genetic variants on oral semaglutide response in patients with type 2 diabetes.
- Published In:
- Acta diabetologica, 63(2), 303-311 (2026)
- Authors:
- Candido, Riccardo(2), Toffoli, Barbara, Baccichetto, Gabriele, Marchese, Francesca, Carpenè, Silvia, Gaiotti, Sara, Fabris, Bruno, Bernardi, Stella
- Database ID:
- RPEP-14931
Evidence Hierarchy
Frequently Asked Questions
Why does semaglutide work better for some people?
Genetic variations in the GLP-1 receptor itself can change how well the drug binds and activates the receptor. This study found two specific gene variants that affect oral semaglutide response.
Should I get genetic testing before starting semaglutide?
Not yet — this research is still early. In the future, genetic testing may help doctors choose the best weight loss or diabetes medication for your specific genetic profile.
Read More on RethinkPeptides
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Cite This Study
https://rethinkpeptides.com/research/RPEP-14931APA
Candido, Riccardo; Toffoli, Barbara; Baccichetto, Gabriele; Marchese, Francesca; Carpenè, Silvia; Gaiotti, Sara; Fabris, Bruno; Bernardi, Stella. (2026). Influence of GLP1 receptor rs6923761 and rs761387 genetic variants on oral semaglutide response in patients with type 2 diabetes.. Acta diabetologica, 63(2), 303-311. https://doi.org/10.1007/s00592-025-02626-9
MLA
Candido, Riccardo, et al. "Influence of GLP1 receptor rs6923761 and rs761387 genetic variants on oral semaglutide response in patients with type 2 diabetes.." Acta diabetologica, 2026. https://doi.org/10.1007/s00592-025-02626-9
RethinkPeptides
RethinkPeptides Research Database. "Influence of GLP1 receptor rs6923761 and rs761387 genetic va..." RPEP-14931. Retrieved from https://rethinkpeptides.com/research/candido-2026-influence-of-glp1-receptor
Access the Original Study
Study data sourced from PubMed, a service of the U.S. National Library of Medicine, National Institutes of Health.
This study breakdown was produced by the RethinkPeptides research team. We analyze and report published research findings without making health recommendations. All interpretations are based solely on the published abstract and study data.