Type 2 & other diabetes

Thiazolidinedione and reduced epilepsy risk: A population-based study using target trial emulation

Diabetes Res Clin PractPublished Population-based cohort study using target trial emulation

Main finding · Incident epilepsyResult — go to the resultHazard ratio 0.77 95% CI 0.64–0.93

Authors' conclusion

Our results indicated that use of TZDs was associated with reduced risk of epilepsy in the study population. More studies are needed to confirm and replicate the study results in other settings and populations..

Study context

Population
Chinese patients with T2D aged 18–100 years, new users of TZDs or alpha glucosidase inhibitors (AGIs); mean age 60.3 (SD 12.8) years, 47.2% female
Participants
22,128 vs 79,166
Exposure
TZD vs alpha glucosidase inhibitors in T2D
  • TZDsn = 22,128
  • AGIsn = 79,166reference
Outcome
Incident epilepsy identified by ICD-10 codes
Methodological detailsactive-comparator new-user (ACNU) design, inverse probability of treatment weighting
  • Active-comparator new-user (ACNU) design
  • Inverse probability of treatment weighting

Main finding

Incident epilepsy

Hazard ratio

0.77

95% CI 0.64–0.93

By group

TZDs

140.1 per 100,000 person-years

AGIs

208.2 per 100,000 person-years

TZDsvs AGIs
HR 0.77 (95% CI 0.64–0.93)

As reported in the abstract

Observational data: associations, not effects.

Further findings

Association consistent in various subgroup and sensitivity analyses

Original publication

Thiazolidinedione and reduced epilepsy risk: A population-based study using target trial emulation. Diabetes Res Clin Pract. Published 23 February 2026. doi:10.1016/j.diabres.2026.113184

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