OUTLINE:~Patients complete questionnaires over 10 minutes about physical symptoms, activity level, and emotional well-being and have their medical records reviewed at baseline, 1, 3, and 6 months after starting index treatment, and at start of a new systemic treatment. Patients also undergo collection of blood samples over 1-2 minutes at baseline and at 1 month after starting index treatment, or at a treatment change visit if new therapy has not started.
This trial collects clinical data and blood samples to predict the quality of response to specific treatments in patients with chronic graft-versus-host disease (cGVHD) who are about to start initial or second-line therapy. Collecting and analyzing clinical data and blood samples from patients with cGVHD before and after treatment initiation may help doctors identify changes that may predict treatment response.