医药生物行业周报（8月第4周）：MRD有望成为新的免疫伴随诊断-20250825

Investment Rating - The report provides an investment rating of "G" for the pharmaceutical and biotechnology industry [1]. Core Viewpoints - The report highlights that MRD (Minimal Residual Disease) is expected to become a new paradigm in immune companion diagnostics, with significant advancements in tumor treatment and the development of new tumor markers [2][3]. - The pharmaceutical and biotechnology sector saw a weekly increase of 1.05%, underperforming compared to the Wind All A index (3.87%) and the CSI 300 index (4.18%) [3][8]. - Key sectors within the industry that performed well include medical devices (4.49%), vaccines (4.41%), and traditional Chinese medicine (2.86%), while medical research outsourcing (-3%), raw materials (-1.44%), and medical consumables (-0.01%) lagged [3][9]. Summary by Sections Market Weekly Review - The pharmaceutical and biotechnology sector increased by 1.05% from August 18 to August 22, 2025, underperforming against the Wind All A index and CSI 300 index [3][8]. - Notable stock performances included Xiangxue Pharmaceutical (40.4%), Olin Bio (38.3%), and Tuo Jing Life (29.5%) with significant declines seen in Linuo Pharmaceutical (-22.1%), Nanmo Bio (-17.9%), and Fuyuan Pharmaceutical (-17.9%) [3][11]. Industry News and Key Company Announcements - On August 22, Daiichi Sankyo's targeted TROP2 ADC Datopotamab deruxtecan was approved for treating HR-positive, HER2-negative breast cancer [12]. - Natera announced positive results from its IMvigor011 trial for muscle-invasive bladder cancer, leading to a submission for FDA approval of Signatera as a companion diagnostic [13]. - The report emphasizes the importance of MRD in tumor treatment, with advancements in both US and China regarding MRD products [3][12].