Group 1 - The core point of the article is that Zai Lab (688266) has filed an international patent application for a multi-specific antibody targeting the LRRC15 antigen, with the application number PCT/CN2025/075637 and an international publication date of August 7, 2025 [1][2] - Zai Lab has announced a total of three international patent applications this year, representing a 200% increase compared to the same period last year [2] - In the 2024 annual report, Zai Lab reported a research and development expenditure of 388 million yuan, which is a decrease of 21.83% year-on-year [2]