1230-P: Low Real-World Use of SGLT2 Inhibitors in People with Diabetes and Heart Failure—A Population Cohort Study

Background: One of the most striking benefits of sodium-glucose cotransporter 2 inhibitors (SGTL2is) in clinical trials has been the reduction in heart failure (HF) hospitalization. Thus, guidelines recommend SGLT2i use in people with diabetes and HF.

Objective: We assessed the real-world dispensation of SGTL2is and the factors associated with their dispensation in people with diabetes and HF.

Methods: This retrospective, population-based cohort study identified people with diabetes and HF between Jan 1, 2014 to Dec 31, 2017 in Alberta, Canada (population ~ 4.3 million). Individuals were followed until Dec 31, 2020. The index date was the date of physician or hospitalization claim for HF. The primary exposure was SGTL2i dispensation after HF index date. Demographic and clinical characteristics were summarized, and multivariate logistic regression assessed the factors associated with SGTL2i dispensation adjusting for age, sex, baseline HbA1c, diabetes duration, chronic kidney disease (CKD), atherosclerotic cardiovascular disease (ASCVD), comorbidities (Charlson Comorbidity Index (CCI) score), material deprivation, and urban/rural residence.

Results: We identified 22,025 people (43.4% female, mean age 74.7 years ± 11.8 years) with diabetes and HF. Only 10.2% (n=2,247) of individuals with diabetes and HF were dispensed an SGTL2i. Male sex (aOR 1.55; 95% CI 1.39-1.72), age < 65 years (aOR 2.28; 95% CI 2.05-2.54), higher HbA1c (aOR 1.35; 95% 1.31-1.40), no CKD (aOR 3.11; 95% CI 2.78-3.49), ASCVD (aOR 1.48; 95% CI 1.33-1.64), and urban residence (aOR 1.17; 95% CI 1.05-1.31) were associated with SGTL2i dispensation while more co-morbidities were associated with less dispensation (CCI score ≥ 5 aOR 0.36; 95% CI 0.30-0.43).

Conclusions: Only 1 in 10 people with diabetes and HF were dispensed an SGTL2i. We identified several factors associated with SGTL2i dispensation and importantly this study highlights a significant opportunity to improve management in people with diabetes and HF.