This study was designed to evaluate the efficacy and safety of valemetostat tosylate monotherapy. The primary objective will evaluate objective response rate of valemetostat tosylate monotherapy as measured by blinded independent central review (BICR) in relapsed/refractory peripheral T-cell lymphoma.
This study will characterize the safety and clinical benefit of valemetostat tosylate in participants with relapsed/refractory peripheral T-cell lymphoma, including relapsed/refractory adult T-cell leukemia/lymphoma.