Abstract 268P
Background
Sodium-glucose cotransporter 2 inhibitors (SGLT2I) have been suggested to reduce new-onset cancer amongst type-2 diabetes mellitus (T2DM) patients.
Methods
This real-world study aims to compare the risks of prostate cancer between SGLT2I and dipeptidyl peptidase-4 inhibitors (DPP4I) amongst T2DM patients.This was a retrospective population-based cohort study of prospectively recorded data on type-2 diabetes mellitus (T2DM) male patients prescribed either SGLT2I or DPP4I between January 1st 2015 and December 31st 2020 from Hong Kong. The primary outcome was new-onset prostate cancer. The secondary outcomes included cancer-related mortality and all-cause mortality. Propensity score matching (1:1 ratio) using the nearest neighbour search was performed and multivariable Cox regression was applied to compare the risk. A three-arm sensitivity analysis including the glucagon-like peptide-1 receptor agonist (GLP1a) cohort was conducted.
Results
This study included 42129 male T2DM patients (median age: 61.0 years old [SD: 12.2]; SGLT2I: n=17120; DPP4I: n=25009). After matching, the number of prostate cancers was significantly lower in SGLT2I users (n = 60) than in DPP4I (n = 102). SGLT2I use was associated with lower prostate cancer risks (HR: 0.45; 95% CI: 0.30-0.70) after adjustments than DPP4I. The results remained consistent in the sensitivity analysis. SGLT2I reduced the risks of prostate cancer prominently amongst patients who were older (age >65), patients with 2nd and 3rd quartile of HbA1c, concurrent metformin uses, and concurrent sulphonylurea uses. SGLT2I was associated with higher risks of prostate cancer amongst sulphonylurea non-users.
Conclusions
The real-world study demonstrated SGLT2I was associated with lower risks of new-onset prostate cancer after matching and adjustments compared to DPP4I. This result warrants further prospective studies.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
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