Zhi Tong Cai Jing·2025-09-26 06:39Core Viewpoint - The report from Open Source Securities indicates that small RNA drugs targeting weight loss are focusing on two main targets: INHBE and ALK7, with Arrowhead and Wave making the fastest progress in this area [1][2]. Group 1: Market Potential - The small RNA drug sector is expected to break into the billion-dollar weight loss market, with a focus on INHBE and ALK7 as key targets [1]. - INHBE is expressed in liver cells and plays a role in fat metabolism by encoding and secreting Activin E, which interacts with ALK7 [1]. Group 2: Company Progress - Arrowhead and Wave are leading in the development of INHBE siRNA molecules, with phase 1 trial data expected within the next six months [2]. - Alnylam, while slightly behind, has a comprehensive approach covering INHBE, ALK7, and GeneD for muscle targeting [2]. Group 3: Clinical Insights - Preclinical data shows that Arrowhead's ALK7 siRNA combined with Tirzepatide can enhance weight loss effects and provide longer-lasting efficacy, allowing for less frequent dosing [3]. - Genetic studies suggest that individuals with loss of function in INHBE or ALK7 exhibit healthier metabolic profiles, indicating that targeting these pathways may reduce visceral fat rather than just overall weight [3]. Group 4: Investment Recommendations - Short-term focus is recommended on Arrowhead and Wave's data readouts, particularly regarding safety, pharmacokinetics, dosing intervals, biomarker knockdown levels, early efficacy, and metabolic changes [4]. - Recommended stocks include Yuyuan Pharmaceutical (688658.SH), Sunshine Novo Nordisk (688621.SH), Rejuve Biotech (688068.SH), and Shiyao Group (01093), with beneficiaries including Frontier Biotech-U (688221.SH) and Hengrui Medicine (600276) (01276) [4].