Group 1 - The core viewpoint of the articles highlights the promising clinical results of Rovadicitinib for treating acute graft-versus-host disease (aGVHD), showing an overall response rate (ORR) of 84.6% over 28 days and a 12-month overall survival rate of 92.3% [1][2] - Rovadicitinib is the first dual-pathway JAK/ROCK inhibitor globally, representing a significant breakthrough in the treatment of graft-versus-host disease (GVHD) [2] - The drug targets multiple pathways involved in aGVHD, potentially offering better treatment options for patients who are steroid-resistant [1] Group 2 - Clinical data indicates a median response time of only 4 days and an 80% intestinal response rate, demonstrating rapid efficacy and sustained relief [1] - Within 56 days, 38.5% of patients were able to completely discontinue steroid use, significantly reducing the long-term side effects associated with immunosuppression [1] - The company has initiated a Phase III clinical trial for Rovadicitinib in treating chronic graft-versus-host disease (cGVHD), currently in the subject enrollment phase [2]

Core Viewpoint - China Biopharmaceutical announced the results of preclinical and Phase Ib clinical studies for Rovadicitinib in treating acute graft-versus-host disease (aGVHD) at the 2025 European Hematology Association (EHA) annual meeting, highlighting a significant overall response rate (ORR) of 84.6% over 28 days and a median response time of 4 days, with a 12-month overall survival rate of 92.3% [1] Group 1 - Rovadicitinib is an oral, selective JAK1/2 and ROCK1/2 inhibitor targeting multiple pathways in aGVHD, potentially offering better treatment options for steroid-refractory (SR) aGVHD patients [1] - The drug is the first global JAK/ROCK dual-pathway inhibitor, marking a breakthrough in the treatment of graft-versus-host disease (GVHD) [1] - A Phase III clinical trial for Rovadicitinib in treating chronic graft-versus-host disease (cGVHD) has been initiated, currently in the subject enrollment phase [1]