THU244 Clinical Factors Affecting Dapagliflozin Response For Glycemic Control And Body Weight Reduction: Post-hoc Analysis Of BEYOND Study

Disclosure: K. Ahn: None. J. Ji Eun: None. J. In-Kyung: None. Background: Dapagliflozin, a sodium-glucose cotransporter-2 inhibitor, ameliorates hyperglycemia and obesity by inhibiting renal glucose reabsorption. However, significant heterogeneity exists in glucose-lowering efficacy and the magnitude of the weight loss among patients with type 2 diabetes. Herein, we aimed to evaluate the clinical factors affecting response to dapagliflozin treatment. Methods: We performed a post-hoc analysis of the BEYOND (Effects of Dapagliflozin Compared with Glimepiride on Body Composition in Patients with Type 2 Diabetes Inadequately Controlled with Metformin) randomized, double-blind, parallel-group trial. Patients were randomly assigned (1:1) to receive the addition of either dapagliflozin 10 mg per day or glimepiride 1∼2 mg per day to background metformin therapy for 52 weeks. Changes in HbA1c and body weight from baseline during the observation period were assessed for all patients. Responder to dapagliflozin was defined by >1% reduction in A1c and >3% reduction in body weight at week 52. Then, we classified the total subjects into 4 groups: non-responder of both A1c reduction and body weight reduction, responders of A1c reduction but non-responder of body weight reduction, non-responder of A1c reduction but responders of body weight reduction, and responders of both A1c reduction and body weight reduction. Results: Among 56 patients in a dapagliflozin arm, 55.4% (N = 31) and 57.1% (N = 32) experienced clinical responses as indicated by reductions in HbA1c and in body weight reduction, respectively. Younger age and higher HbA1c level at baseline were significantly associated with a greater HbA1c reduction, and a higher estimated glomerular filtration rate (eGFR) was significantly associated with a greater body weight reduction. However, there was no association between the change in HbA1c and the change in body weight (r = −0.133, P = 0.328). Responders of both A1c reduction and body weight reduction were most common (32.1%), non-responders of A1c reduction but responders of body weight reduction were second-most (25.0%), responders of A1c reduction but non-responders of body weight reduction were 23.2%, and non-responders of both A1c reduction and body weight reduction were 19.6%. Subjects with higher fasting plasma glucose (FPG) and HbA1c in addition to lower eGFR at baseline had a greater reduction in HbA1c, but less reduction in body weight. Conversely, those with lower FPG and HbA1c in addition to higher eGFR at baseline had a greater reduction in body weight, but less reduction in HbA1c level. Conclusion: Patients with type 2 diabetes actually exhibit a heterogeneous response to dapagliflozin treatment. Glucose-lowering efficacy of dapagliflozin was associated with worse baseline glycemic status, and body weight reduction was associated with baseline higher eGFR. Presentation: Thursday, June 15, 2023