盘中跌超5%！微芯生物又陷专利风波

Core Viewpoint - Microchip Biotech's stock fell over 5% following the announcement of a patent invalidation decision by the National Intellectual Property Administration, declaring the patent related to its drug, Sidabamine, completely invalid [1][2]. Group 1: Patent Invalidation Impact - The invalidation decision regarding the patent for Sidabamine does not affect the overall patent protection system that the company has established around the drug, which includes multiple patents covering various aspects such as compound, crystal form, key processes, formulations, and indications [2][3]. - The invalidated patent pertains specifically to the indication for peripheral T-cell lymphoma (PTCL), but the company maintains that this does not undermine the validity of other patents protecting Sidabamine [2][3]. Group 2: Drug Approval and Market Position - Sidabamine has received approvals for three indications in China: PTCL in December 2014, breast cancer (BC) in November 2019, and diffuse large B-cell lymphoma (DLBCL) in April 2024, with PTCL and DLBCL being conditionally approved [3]. - The breast cancer indication has not yet been included in the national medical insurance catalog, and the market is competitive with several lower-priced alternatives already listed, resulting in a minor contribution to the company's revenue [3]. Group 3: Financial Performance - For the first half of 2025, Microchip Biotech reported a revenue of 407 million yuan, representing a year-on-year increase of 34.56%, and a net profit attributable to shareholders of 29.59 million yuan, up 172.16% year-on-year [3][4]. - The growth in revenue is attributed to increased sales of Sidabamine and Siglecatin [4].