PMID- 36593170 OWN - NLM STAT- MEDLINE DCOM- 20230302 LR - 20230320 IS - 2152-2669 (Electronic) IS - 2152-2669 (Linking) VI - 23 IP - 3 DP - 2023 Mar TI - Efficacy and Safety of Blinatumomab for the Treatment of Relapsed/Refractory Acute Lymphoblastic Leukemia: A Systemic Review and Meta-Analysis. PG - e139-e149 LID - S2152-2650(22)01772-4 [pii] LID - 10.1016/j.clml.2022.12.009 [doi] AB - OBJECTIVE: The aim was to evaluate the efficacy and safety of blinatumomab monotherapy for the treatment of relapsed/refractory acute lymphoblastic leukemia (R/R B-ALL). METHODS: PubMed, Embase, Web of Science, and Cochrane Library were searched to collect clinical studies related to blinatumomab. The primary outcome measures were complete remission (CR), and minimal residual disease (MRD) response. Prognostic indicators included overall survival (OS) and relapse-free survival time (RFS). Grade >/=3 adverse reactions were mainly analyzed for safety, including cytokine release syndrome (CRS), neurological events and hematological toxicity. The heterogeneity was quantified by I(2) statistic, which reflected the proportion of the true heterogeneity to the variance of the total effect size. Studies were considered heterogeneous if the I(2) statistic was greater than 50%, and conversely, studies were homogeneous. RESULTS: A total of 18 studies involving 1,373 patients were included. The analysis results showed a CR rate of 54% (95%CI:44%-64%) and an MRD response rate of 43% (95%CI:34%-51%). The CR rate was higher in patients with bone marrow (BM) blast <50% than in patients with BM blast >/=50% (71% vs. 34%). The median OS and RFS were 8.16 months (95%CI:6.64-9.69) and 6.02 months (95%CI:4.63-7.41), respectively. For safety analysis, the incidence of grade >/=3 adverse events (AEs) was 80% (95%CI:72%-88%), the incidence of grade >/=3 neurological toxicity was 7% (95%CI:4%-11%), and the incidence of grade >/=3 CRS was 3% (95%CI:2%-5%). However, the mixture of retrospective and prospective studies led to heterogeneity to some extent in this meta-analysis. CONCLUSION: Blinatumomab is effective in the treatment of R/R B-ALL with a controlled occurrence of AEs and a reliable safety profile. CI - Copyright (c) 2022 Elsevier Inc. All rights reserved. FAU - Liu, Heng AU - Liu H AD - Department of Hematology, the 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, China. FAU - Xi, Rui AU - Xi R AD - Department of Hematology, the 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, China. FAU - Mao, Dongfeng AU - Mao D AD - Department of Hematology, the 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, China. FAU - Zhao, Xiaochen AU - Zhao X AD - Department of Hematology, the 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, China. FAU - Wu, Tao AU - Wu T AD - Department of Hematology, the 940th Hospital of Joint Logistic Support Force of the Chinese People's Liberation Army, Lanzhou 730050, China. Electronic address: wutaozhen@yeah.net. LA - eng PT - Journal Article PT - Meta-Analysis PT - Review PT - Systematic Review DEP - 20221217 PL - United States TA - Clin Lymphoma Myeloma Leuk JT - Clinical lymphoma, myeloma & leukemia JID - 101525386 RN - 0 (Antibodies, Bispecific) RN - 4FR53SIF3A (blinatumomab) SB - IM MH - Humans MH - *Antibodies, Bispecific MH - *Leukemia, Lymphoid/drug therapy MH - *Precursor B-Cell Lymphoblastic Leukemia-Lymphoma/therapy MH - Prospective Studies MH - Recurrence MH - Retrospective Studies OTO - NOTNLM OT - Adverse event OT - Bispecific antibody OT - CD19 OT - Complete remission OT - Outcome COIS- Disclosure The authors have no relevant financial or non-financial interests to disclose. The authors declare that no funds, grants, or other support were received during the preparation of this manuscript. EDAT- 2023/01/03 06:00 MHDA- 2023/03/03 06:00 CRDT- 2023/01/02 21:53 PHST- 2022/10/13 00:00 [received] PHST- 2022/12/08 00:00 [revised] PHST- 2022/12/14 00:00 [accepted] PHST- 2023/01/03 06:00 [pubmed] PHST- 2023/03/03 06:00 [medline] PHST- 2023/01/02 21:53 [entrez] AID - S2152-2650(22)01772-4 [pii] AID - 10.1016/j.clml.2022.12.009 [doi] PST - ppublish SO - Clin Lymphoma Myeloma Leuk. 2023 Mar;23(3):e139-e149. doi: 10.1016/j.clml.2022.12.009. Epub 2022 Dec 17.