Evidence summaries for obesity and weight management, including lifestyle trials, pharmacotherapy, bariatric/metabolic outcomes, cardiometabolic risk, and long-term safety.
A phase 1 mechanistic study in adults with obesity found tirzepatide did not alter metabolic adaptation but increased fat oxidation and reduced calorie intake versus placebo. PICO summary and expert commentary.
A phase 1 single-ascending-dose first-in-human trial of HEC88473, a dual GLP-1/FGF21 receptor agonist, reporting tolerability and early metabolic signals in healthy and obese adults. PICO summary and expert commentary.
Once-weekly semaglutide 2.4 mg cut body weight by an estimated 8.3% more than placebo over 44 weeks in Chinese adults with overweight or obesity in the STEP 7 trial. PICO summary and expert commentary.
A first-in-human Phase I dose-escalation study found the dual GLP-1/GIP receptor agonist BGM0504 was generally safe and well tolerated in 40 healthy volunteers, with dose-related weight reduction and gastrointestinal adverse events. PICO summary and expert commentary.
A prespecified, descriptive subgroup analysis of a phase 2 survodutide trial examined how sex and baseline BMI shaped weight and waist outcomes in 387 adults with overweight or obesity. PICO summary and expert commentary.
Post-hoc STEP 6 subgroup analysis of semaglutide versus placebo in 401 Japanese and Korean adults with overweight or obesity, testing whether sex, type 2 diabetes, and other baseline factors modify weight loss. PICO summary and expert commentary.
A phase 2 substudy found retatrutide produced dose-related reductions in total body fat mass at 36 weeks versus placebo and dulaglutide in type 2 diabetes. PICO summary and expert commentary.
A post hoc mediation analysis of the SURMOUNT-1 to -4 trials found that gastrointestinal adverse events contributed only slightly (up to 3.1%) to tirzepatide-associated weight reduction, which was similar regardless of nausea. PICO summary and expert commentary.
A 10-week whole-food plant-based community programme produced significant between-group weight loss but no significant glycaemic or lipid change in this small New Zealand RCT. PICO summary and expert commentary.
A phase 1, double-blind, placebo-controlled study of titrated noiiglutide (SHR20004) in obese Chinese adults without diabetes reported good tolerability and dose-related weight loss, with PICO summary and expert commentary.
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