Heterogeneity of Treatment Effects Across Nine Glucose‐Lowering Drug Classes in Type 2 Diabetes: Extension of the LEGEND ‐ T2DM Network Study
Authors' conclusion
This hypothesis-generating study identified limited signals of HTE.
Study context
- Population
- Patients with T2D initiating one of nine antihyperglycemic drug classes, six data sources of the Observational Health Data Sciences and Informatics network
- Exposure
- Nine glucose-lowering drug classes compared head to head; Heterogeneous treatment effects (HTE) across clinical and demographic subgroups
- Outcome
- HTE assessed by comparing differences in log hazard ratios (HRs) (calibrated) across clinical and demographic subgroups
Methodological detailsnetwork study, random-effects meta-analysis across 6 data sources, new-user, active-comparator, large-scale propensity score adjustment, empirical calibration using negative controls, hypothesis-generating, Several subgroups (e.g., DKA and retinopathy) did not meet diagnostic criteria for clinical reliability and were not evaluated
- Network study, random-effects meta-analysis across 6 data sources
- New-user, active-comparator
- Large-scale propensity score adjustment
- Empirical calibration using negative controls
- Hypothesis-generating
- Several subgroups (e.g., DKA and retinopathy) did not meet diagnostic criteria for clinical reliability and were not evaluated
Main finding
As reported in the abstract
HTE across subgroups
- Nominal signals of HTE in hyperlipidemia, hypertension, obesity and sex subgroups
- Biguanides (vs DPP-4i): lower risk of acute MI in hyperlipidemia and of HF hospitalization in obesity
- SGLT2i (vs GLP-1 RA): reduced stroke risk only in non-obese patients
- Women: higher risk of diarrhoea with GLP-1 RA and lower stroke risk with SGLT2i (both vs DPP-4i)
- None of the signals statistically significant after multiple testing correction
- Nominal signals
Observational data: associations, not effects.
Original publication
Heterogeneity of Treatment Effects Across Nine Glucose‐Lowering Drug Classes in Type 2 Diabetes: Extension of the LEGEND ‐ T2DM Network Study. Diabetes Obes Metab. Published 3 June 2026. doi:10.
Composed by AI from the published abstract and checked against it. How Briefs are made →