Safety and efficacy of GZR18, a long-acting GLP-1 analog, in Chinese patients with type 2 diabetes: A randomized, double-blind, phase 1b/2a trial.
rct · Level II
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- Also identified by DOI 10.1016/j.xcrm.2026.102874.
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Abstract
GZR18 is a long-acting glucagon-like peptide-1 receptor agonist that is under development for the treatment of type 2 diabetes mellitus (T2DM). In this randomized, double-blind, placebo-controlled phase 1b/2a trial in Chinese adults with T2DM, the safety and efficacy of once-weekly GZR18 are evaluated using different dose-titration regimens in two separate parts: Part A (0.5-4 mg over 26 weeks) and Part B (1.5-13 mg over 23 weeks). Overall, 72 participants are enrolled, of whom 62 complete the trial. GZR18 significantly reduces glycated hemoglobin (HbA1c) in both parts (Part A: -1.32% for GZR18 versus 0.86% for placebo; Part B: -1.81% for GZR18 versus 0.12% for placebo). Improvements in body weight and other metabolic parameters are also observed. GZR18 is safe and well tolerated, with mostly mild-to-moderate gastrointestinal adverse events; no severe hypoglycemia or treatment-related serious adverse events occurred. These findings support further development of GZR18 in larger, longer-term trials. The trial is registered at ClinicalTrials.gov (NCT06256523).