
This Targeted Oncology Case-Based Peer Perspective program, led by Dr. Zachariah DeFilipp of Massachusetts General Hospital, focuses on optimizing treatment sequencing in chronic graft-versus-host disease (cGVHD) following allogeneic stem cell transplantation. The discussion emphasizes practical, real-world decision-making across lines of therapy, integrating NIH diagnostic criteria, patient-reported symptoms, and evolving clinical trial data. Dr. DeFilipp reviews the limitations of corticosteroids as first-line therapy, the central role of ruxolitinib in steroid-refractory disease, and emerging targeted agents such as belumosudil and axatilimab in later lines. Through a longitudinal patient case, the program highlights challenges with durability of response, fibrotic and pulmonary involvement, and timing of therapy escalation. He also explores discrepancies between clinical trial outcomes and real-world experience, logistical considerations influencing oral versus IV therapy selection, and the growing interest in combination strategies and earlier use of targeted agents to alter the long-term trajectory of cGVHD.





























