Ge Long Hui·2025-10-14 04:52Core Insights - China Biopharmaceutical presented positive Phase II clinical results for its PDE3/4 inhibitor TQC3721 at the European Respiratory Society 2025 conference, showing rapid improvement in lung function and symptoms for COPD patients [1][2] Group 1: Clinical Results - TQC3721 demonstrated significant improvements in FEV1 peak values compared to the placebo group, with increases of 100ml and 147ml for the 3mg and 6mg groups respectively after 4 weeks of treatment [1] - In the subgroup of patients using LAMA and LABA/LAMA, the 6mg group showed a FEV1 peak increase of 239ml compared to the placebo group [1] - The safety profile of TQC3721 was favorable, with no significant adverse effects observed in gastrointestinal, cardiovascular, or liver and kidney functions during the clinical trial [1] Group 2: Comparative Analysis - TQC3721's clinical data suggests it has best-in-class potential, with the 6mg group showing FEV1 peak values consistent with those of the recently approved drug ensifentrine [2] - The baseline characteristics of TQC3721 trial participants were poorer compared to those in the ensifentrine trials, indicating a greater potential for clinical benefit in real-world COPD patients [2] Group 3: Market Potential - The global COPD market is substantial, with nearly 480 million affected individuals worldwide, and over 100 million in China, making it a significant health and economic burden [3] - The recent acquisition of Verona by Merck for $10 billion highlights the market potential for PDE3/4 inhibitors, with ensifentrine's sales showing strong growth [3] - TQC3721, being the second globally in development and the only PDE3/4 inhibitor in Phase III trials, is positioned for significant overseas licensing opportunities [3]