Survodutide for treatment of obesity: Baseline characteristics of participants in a randomized, double‐blind, placebo‐controlled, phase 3 trial ( SYNCHRONIZE ™‐1)

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Abstract Aims Survodutide, a novel glucagon receptor and glucagon‐like peptide‐1 (GLP‐1) receptor dual agonist, elicited significant weight loss in a phase 2 trial in individuals with obesity without type 2 diabetes (T2D). Two multinational phase 3 trials are investigating survodutide for obesity management in individuals with or without T2D. We report the baseline characteristics of participants in the SYNCHRONIZE‐1 trial in adults with obesity without T2D ( ClinicalTrials.gov : NCT06066515). Materials and methods Participants aged ≥18 years with BMI ≥30 or ≥27 kg/m 2 with ≥1 obesity complication without T2D were randomized 1:1:1 to double‐blind, once‐weekly, subcutaneous injections of survodutide (up‐titrated to 3.6 or 6.0 mg) or placebo for 76 weeks. The primary endpoints are percent body weight change and achievement of body weight reduction ≥5% from baseline to Week 76. Efficacy and safety analyses will include all randomized and treated participants. Results At baseline, participants ( n = 725 from 14 countries) had a mean age of 47.1 years, BMI 37.9 kg/m 2 , and waist circumference 115.2 cm. Most participants (59.4%) were female; 47.3% were from North America, 21.0% from Europe, and 20.0% from East Asia. Obesity complications included hypertension (40.0%), dyslipidaemia (33.7%), and prediabetes (30.2%). Mean haemoglobin A1c was 5.5%, estimated glomerular filtration rate 93.0 mL/min/1.73 m 2 , systolic/diastolic blood pressure 127.0/82.7 mmHg, and low‐density lipoprotein cholesterol 116.4 mg/dL; 21.8% were taking lipid‐lowering drugs. Conclusions SYNCHRONIZE‐1 will determine the efficacy, safety, and tolerability of survodutide, a glucagon receptor/GLP‐1 receptor dual agonist, for weight loss in a representative cohort of people with obesity without T2D.

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