Core Viewpoint - Haichuang Pharmaceutical has decided to suspend the development of its self-developed drug HP501 due to intense market competition and the presence of similar products already approved for the URAT1 target [2][6]. Group 1: Project Development and Market Competition - HP501, a small molecule chemical innovation drug, is a URAT1 inhibitor that showed superior biological activity compared to similar drugs in preclinical studies [3]. - The project has faced significant delays, with its clinical progress lagging behind competitors, leading to the decision to halt its development [5][6]. - As of the announcement, several domestic companies have launched products targeting the URAT1 pathway, increasing competitive pressure on HP501 [6][7]. Group 2: Financial and Strategic Adjustments - The company has invested approximately 81.11 million yuan (about 11.5 million USD) into the HP501 project before deciding to suspend it [2]. - Following the suspension, Haichuang Pharmaceutical plans to redirect the remaining funds, approximately 122 million yuan (about 17.3 million USD), towards the development of other projects, specifically HP518 and HP537 [7][8]. - HP518 is the first oral AR PROTAC drug in clinical trials in China, with ongoing studies showing promising safety and efficacy signals in treating metastatic castration-resistant prostate cancer (mCRPC) [7][8].