Type 2 & other diabetes

GLP-1 RA initiation versus metformin and risk of cardiomyopathy in patients with cancer and diabetes treated with chemotherapy, radiation, or immunotherapy: a target trial emulation

Diabetes Res Clin PractPublished Retrospective cohort study

Authors' conclusion

GLP-1 RA initiation was associated with a lower risk of cardiomyopathy compared with metformin among patients with cancer and T2D, supporting a potential role for GLP-1 RA in cardio-oncology prevention strategies.

Study context

Population
Adults aged 18–75 years with cancer and T2D, with prior exposure to chemotherapy, radiation, or immunotherapy; initiation between January 2006 and July 2024matched
Participants
10,382 adults
Exposure
GLP-1 RA initiation vs metformin initiation
Outcome
Incident cardiomyopathy
Follow-up
18.5 years
Methodological detailstarget trial emulation, 1:1 propensity score-matched, global electronic health record database
  • Target trial emulation
  • 1:1 propensity score-matched
  • Global electronic health record database

Main finding

As reported in the abstract

Cardiomyopathy risk
Each group vs metforminHazard ratio (95% CI)
GLP-1 RA
0.43(0.24–0.76)
GLP-1 RA
Risk differences (RD) - 0.64% (95% CI - 0.90 to - 0.30)

Observational data: associations, not effects.

Further findings

Results were consistent across high-risk subgroups

Original publication

GLP-1 RA initiation versus metformin and risk of cardiomyopathy in patients with cancer and diabetes treated with chemotherapy, radiation, or immunotherapy: a target trial emulation. Diabetes Res Clin Pract. Published 26 January 2026. doi:10.1016/j.diabres.2026.113119

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

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