Nature Medicine：替尔泊肽能够有效治疗遗传性肥胖

Core Viewpoint - Tirzepatide, developed by Eli Lilly, is the most effective weight loss drug currently on the market, demonstrating a weight reduction of over 20% in clinical trials, particularly beneficial for patients with severe obesity (BMI > 40 kg/m²) [2][5] Group 1: Drug Efficacy - Tirzepatide has shown significant weight loss effects in obese patients, regardless of the presence of type 2 diabetes, with an approximate reduction of 20% [5] - The drug is particularly advantageous for patients with severe obesity, who face the highest burden of cardiovascular complications and mortality [5] Group 2: Genetic Obesity and MC4R Deficiency - MC4R deficiency is the most common hereditary obesity condition, characterized by hyperphagia and significant weight gain from early childhood, leading to severe obesity in adulthood [5][6] - Current treatments for MC4R deficiency have been ineffective, with no approved therapies available for this genetic condition [5][6] Group 3: Research Findings - A study published in Nature Medicine indicates that Tirzepatide effectively aids weight loss in patients with MC4R deficiency, achieving results comparable to non-genetic obesity patients [2][6] - In a clinical trial involving 2,291 participants, 32 individuals (1.4%) were found to carry pathogenic MC4R mutations, and both groups experienced similar weight loss trajectories over 72 weeks, with MC4R mutation carriers losing 18.3% of their body weight compared to 19.9% for non-carriers [6]