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Clinical Trial 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.


Clinical Trial Description

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. Overall, patients experiencing relapse have a dismal prognosis despite salvage treatment with TKIs. The prevention of relapse is essential for improving the outcome of Ph+ ALL. Strategies to prevent relapse include tyrosine kinase inhibitor (TKIs) use, donor lymphocyte infusions (DLI), CAR-T and so on. At present, the utility of TKIs administration post-transplants is controversial. Our previous clinical trial (ID: NCT01883219) demonstrated that pre-emptive TKI 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, we found that 58% Ph+ ALL with MRD positive pre-transplants would MRD positive post-transplants, whereas only 11.4% Ph+ ALL with MRD negative pre-transplants would MRD positive post-transplants, suggesting 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 Design


Related Conditions & MeSH terms


NCT number NCT03624530
Study type Interventional
Source Nanfang Hospital of Southern Medical University
Contact Li Xuan
Phone +86-020-62787883
Email 356135708@qq.com
Status Recruiting
Phase Phase 2/Phase 3
Start date August 2018
Completion date July 2022

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