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Ref Type Journal Article
PMID (32791048)
Authors Xuan L, Wang Y, Huang F, Fan Z, Xu Y, Sun J, Xu N, Deng L, Li X, Liang X, Luo X, Shi P, Liu H, Wang Z, Jiang L, Yu C, Zhou X, Lin R, Chen Y, Tu S, Huang X, Liu Q
Title Sorafenib maintenance in patients with FLT3-ITD acute myeloid leukaemia undergoing allogeneic haematopoietic stem-cell transplantation: an open-label, multicentre, randomised phase 3 trial.
Journal Vol Issue Date Pages Journal Short Title
The Lancet. Oncology 21 9 2020 Sep 1201-1212 Lancet Oncol
URL
Abstract Text Findings of retrospective studies suggest that sorafenib maintenance post-transplantation might reduce relapse in patients with FLT3 internal tandem duplication (FLT3-ITD) acute myeloid leukaemia undergoing allogeneic haematopoietic stem-cell transplantation. We investigated the efficacy and tolerability of sorafenib maintenance post-transplantation in this population.We did an open-label, randomised phase 3 trial at seven hospitals in China. Eligible patients (aged 18-60 years) had FLT3-ITD acute myeloid leukaemia, were undergoing allogeneic haematopoietic stem-cell transplantation, had an Eastern Cooperative Oncology Group performance status of 0-2, had composite complete remission before and after transplantation, and had haematopoietic recovery within 60 days post-transplantation. Patients were randomly assigned (1:1) to sorafenib maintenance (400 mg orally twice daily) or non-maintenance (control) at 30-60 days post-transplantation. Randomisation was done with permuted blocks (block size four) and implemented through an interactive web-based randomisation system. The primary endpoint was the 1-year cumulative incidence of relapse in the intention-to-treat population. This trial is registered with ClinicalTrials.gov, NCT02474290; the trial is complete.Between June 20, 2015, and July 21, 2018, 202 patients were enrolled and randomly assigned to sorafenib maintenance (n=100) or control (n=102). Median follow-up post-transplantation was 21·3 months (IQR 15·0-37·0). The 1-year cumulative incidence of relapse was 7·0% (95% CI 3·1-13·1) in the sorafenib group and 24·5% (16·6-33·2) in the control group (hazard ratio 0·25, 95% CI 0·11-0·57; p=0·0010). Within 210 days post-transplantation, the most common grade 3 and 4 adverse events were infections (25 [25%] of 100 patients in the sorafenib group vs 24 [24%] of 102 in the control group), acute graft-versus-host-disease (GVHD; 23 [23%] of 100 vs 21 [21%] of 102), chronic GVHD (18 [18%] of 99 vs 17 [17%] of 99), and haematological toxicity (15 [15%] of 100 vs seven [7%] of 102). There were no treatment-related deaths.Sorafenib maintenance post-transplantation can reduce relapse and is well tolerated in patients with FLT3-ITD acute myeloid leukaemia undergoing allogeneic haematopoietic stem-cell transplantation. This strategy could be a suitable therapeutic option for patients with FLT3-ITD acute myeloid leukaemia.None.

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Molecular Profile Treatment Approach
Gene Name Source Synonyms Protein Domains Gene Description Gene Role
Therapy Name Drugs Efficacy Evidence Clinical Trials
Drug Name Trade Name Synonyms Drug Classes Drug Description
Gene Variant Impact Protein Effect Variant Description Associated with drug Resistance
Molecular Profile Indication/Tumor Type Response Type Therapy Name Approval Status Evidence Type Efficacy Evidence References
FLT3 exon 14 ins acute myeloid leukemia sensitive Sorafenib Phase III Actionable In a Phase III trial, Nexavar (sorafenib) maintenance therapy, post-transplantation, was well tolerated in acute myeloid leukemia patients with FLT3-ITD mutations undergoing allogeneic hematopoietic stem-cell transplantation, and led to improved 1-year cumulative incidence of relapse (7 vs 24.5%, HR=0.25, p=0.0010), and improved rates of 2-year overall survival (82.1 vs 68.0%, HR=0.48, p=0.012) and leukemia-free survival (78.9 vs 56.6%, HR=0.37, p<0.0001) compared to control (PMID: 32791048; NCT02474290). 32791048