Core Viewpoint - Heng Rui Medicine's subsidiary Chengdu Shengdi Pharmaceutical has received a notice of acceptance from the National Medical Products Administration for the market approval application of HRS-5965 capsules, a treatment for Paroxysmal Nocturnal Hemoglobinuria (PNH) [1][2] Group 1: Product Development - The application for HRS-5965 is based on a pivotal study involving PNH patients who had not previously received complement inhibitor treatment [1] - The study, HRS-5965-301, is a Phase III clinical trial comparing HRS-5965 capsules with Eculizumab in treating PNH patients, involving 76 patients across 13 centers in China [1] - Results indicate that HRS-5965 significantly improves hemoglobin levels, reduces the need for blood transfusions, and alleviates fatigue compared to Eculizumab, enhancing patients' quality of life [1] Group 2: Market Context - PNH is a rare acquired hemolytic disease characterized by the deficiency of CD55 and CD59, leading to complement-mediated intravascular hemolysis [2] - HRS-5965 is a complement factor B inhibitor that can suppress complement-mediated hemolytic reactions and improve hemoglobin levels [2] - Currently, the only approved drug targeting this indication is Novartis's Iptacopan (Fabhalta), with projected global sales of approximately $129 million in 2024 [2] - The cumulative R&D investment for HRS-5965 has reached approximately 218 million yuan [2]