RecruitingPhase 2Drug trialVenetoclax and Decitabine in R/R T-ALLThe goal of this phase 2 clinical trial is to test the efficacy of decitabine and venetoclax combination chemotherapy in relapsed or refractory adult T-cell acute lymphoblastic leukemia/lymphoblastic lymphoma. This study use a modified regimen of decitabine and venetoclax.