Tirzepatide is a dual action glucose-dependent insulinotropic polypeptide/glucagon-like peptide 1 (GLP-1) receptor agonist and the first drug in a new class known as twincretins. It is similar to GLP-1 receptor agonists but provides a synergistic enhancement of the incretin effect to control blood glucose levels and reduce weight. Across the SURPASS research program trials, tirzepatide lowered A1C by 1.7–2.4% from baseline. The proportion of patients using tirzepatide who achieved an A1C <7% ranged from 91 to 97%. Patients in the treatment groups averaged a weight loss of 5.44–11.34 kg (12–25 lb). Across all trials, patients on tirzepatide 15 mg lost 8.8–12.9 kg (19.4–28.44 lb) or 9.17–13.7% body weight. In the SURMOUNT-1 trial, maximum weight loss was 23.6 kg (52 lb) or 22.5% body weight. Tirzepatide is a potent new weapon in the arsenal against diabetes.

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2023
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