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Drug Development.

Che-Yuan Wu1,2, Abhinav Sharma3, Jodi D Edwards4,5

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|December 25, 2025
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Summary
This summary is machine-generated.

Sodium-glucose cotransporter-2 inhibitors (SGLT2i) use was linked to a reduced dementia risk in patients with heart failure and diabetes. These findings highlight SGLT2i as a potential preventative measure for dementia in high-risk populations.

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Area of Science:

  • Cardiology
  • Neurology
  • Pharmacology

Background:

  • Heart failure patients face elevated dementia risk, compounded by comorbidities like diabetes.
  • Underrepresentation of heart failure patients in dementia clinical trials necessitates further research.
  • Investigating the neuroprotective potential of existing heart failure medications is crucial.

Purpose of the Study:

  • To assess the association between sodium-glucose cotransporter-2 inhibitor (SGLT2i) use and dementia risk.
  • To evaluate this association in individuals with heart failure and comorbid diabetes.
  • To identify potential preventative strategies for dementia in high-risk patient groups.

Main Methods:

  • Retrospective cohort study using administrative health databases in Ontario, Canada.
  • Inclusion of individuals aged ≥66 with heart failure and diabetes, initiating SGLT2i or DPP4i.
  • Propensity score fine stratification weights and Cox regression models used for analysis, adjusting for confounders and competing risks.

Main Results:

  • SGLT2i initiation was associated with a 26% lower risk of incident dementia compared to DPP4i (HR 0.74).
  • Reduced dementia risk with SGLT2i was observed in subgroups, including those with atrial fibrillation and aged ≥75.
  • Secondary as-treated analysis indicated a greater dementia risk reduction with SGLT2i use.

Conclusions:

  • SGLT2i initiation demonstrates a significant association with lower dementia risk in heart failure and diabetes patients.
  • The findings suggest a potential neuroprotective role for SGLT2i in high-risk populations.
  • Further randomized controlled trials are warranted to confirm these promising findings.