At a glance
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Effect of Prophylactic Tyrosine Kinase Inhibitor Therapy Post-transplants on Philadelphia Chromosome-positive Acute Lymphoblastic Leukemia Undergoing Allo-HSCT With Minimal Residual Disease Positive Pre-transplants
In Brief
A Phase 3 clinical trial evaluating Tyrosine kinase inhibitor (TKIs) for Philadelphia Chromosome Positive Acute Lymphocytic Leukemia and 3 related conditions. Targeting 82 participants across 1 site.
Detailed Summary
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) in early first complete remission improves the long-term outcomes for Philadelphia chromosome-positive acute lymphoblastic leukemia (Ph+ ALL). Relapse remains a major cause of treatment failure even after allo-HSCT. The prevention of relapse is essential for improving the outcome of Ph+ ALL. Our previous clinical trial (ID: NCT01883219) demonstrated that pre-emptive tyrosine kinase inhibitor (TKIs) administration based on minimal residual disease (MRD) and BCR-ABL mutation after allo-HSCT might reduce the incidence of relapses and improve survival for patients with Ph+ ALL. Moreover, our result suggested that Ph+ ALL with MRD positive pre-transplants had the higher rate of molecular biology relapse. In this study, we will evaluate the safety and efficacy of prophylactic TKI therapy post-transplants on Ph+ ALL undergoing allo-HSCT with MRD positive pre-transplants.
Study Details
Timeline
Interventions
TKI was selected according to the mutation results of ABL kinase region. Imatinib was initiated at a dose of 200mg/d, dasatinib at a dose of 50mg/d, and ponatinib at a dose of 30mg/d. Then increase the dosage of TKI gradually and increase to therapeutic dose within one month. The duration of TKI was 180 days.