医药生物行业周报（5月第2周）：减肥药重要性再度提升-20250512

Investment Rating - The report does not explicitly state an investment rating for the industry, but it suggests a long-term focus on the weight-loss drug industry chain due to the increasing importance of weight-loss medications [3]. Core Insights - The importance of weight-loss drugs has been reaffirmed, with the WHO developing new guidelines for obesity prevention and treatment, expected to be finalized by August or September 2025. This includes the use of GLP-1 medications for adult obesity management, which may standardize their application and increase their usage in weight-loss populations [3][13]. - The FDA has expanded surprise inspections of overseas manufacturing facilities, particularly in India and China, to ensure foreign companies meet the same regulatory standards as U.S. companies. This is expected to benefit leading CDMO companies in China that have established quality systems compliant with global standards [3][16]. Market Weekly Review - The pharmaceutical and biotechnology sector rose by 1.5% from April 28 to May 9, underperforming the Wind All A index (2.32%) and the CSI 300 index (1.56%). The best-performing segments included offline pharmacies (5.64%), medical devices (4.49%), and medical research outsourcing (2.78%), while vaccines (-0.45%), blood products (-0.43%), and in vitro diagnostics (-0.17%) lagged [3][8]. - Notable individual stock performances included Changshan Pharmaceutical (26.28%) and Haichuang Pharmaceutical (25.85%), both linked to the weight-loss drug concept [3][11]. Industry News and Key Company Announcements - On May 9, the NMPA approved a new indication for Hansoh Pharmaceutical's Amivantamab, targeting specific mutations in non-small cell lung cancer [12]. - The report highlights significant developments in the industry, including the approval of new drug applications and clinical trials by various companies, indicating a dynamic and evolving market landscape [16][17].