Abstract

Tirzepatide (TZP), a novel once-weekly GIP/GLP-1 receptor agonist, demonstrated superior glycemic control vs insulin degludec (IDeg) in SURPASS-3 CGM. This post-hoc analysis evaluated changes from baseline to Week (Wk) 52 in Time in Range (TIR) (71-180 mg/dL), Time in Tight Range (TITR) (71-140 mg/dL), and glycemic variation (within-day coefficient of variation (CV) and Mean Amplitude of Glycemic Excursions (MAGE)) in TZP-treated patients achieving or not achieving HbA1c <5.7% at Wk 52. Interstitial glucose values were collected by CGM at 5-minute intervals for 7 days at baseline, Wk 24, and Wk 52 in a subset of patients in the SURPASS-3 trial. Analyses used pooled data from all TZP arms (5, 10, 15 mg) only due to limited sample size for IDeg patients achieving HbA1c <5.7% at Wk 52. Patients achieving HbA1c <5.7% were slightly younger, had lower HbA1c and FSG, and higher TITR and TIR vs those not achieving HbA1c <5.7% at baseline (Table). Increases in daily TITR and TIR from baseline (61.02% and 41.12% respectively) were seen in patients achieving HbA1c <5.7% while those not achieving HbA1c <5.7% had increased daily TITR and TIR of 36.62% and 32.40% (Table). Within-day CV and MAGE were reduced in both patient groups but more apparent in those achieving HbA1c <5.7%. In TZP-treated patients, improvements in TIR, TITR, and glycemic variability were more pronounced in those achieving HbA1c <5.7%. Disclosure R.M.Bergenstal: Advisory Panel; Abbott Diabetes, Eli Lilly and Company, Medtronic, Novo Nordisk, Roche Diabetes Care, Zealand Pharma A/S, Consultant; Ascensia Diabetes Care, Bigfoot Biomedical, Inc., CeQur SA, Dexcom, Inc., Hygieia, Onduo LLC, Sanofi, Vertex Pharmaceuticals Incorporated, Research Support; Abbott Diabetes, Dexcom, Inc., Eli Lilly and Company, Insulet Corporation, Medtronic, Novo Nordisk, Sanofi, UnitedHealth Group. Á.Rodríguez: Employee; Eli Lilly and Company, Stock/Shareholder; Eli Lilly and Company. B.D.Benneyworth: Employee; Eli Lilly and Company, Stock/Shareholder; Eli Lilly and Company. C.Nicolay: Employee; Eli Lilly and Company. K.Brown: Employee; Eli Lilly and Company. Funding Eli Lilly and Company

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