PMID- 30572922 OWN - NLM STAT- MEDLINE DCOM- 20200109 LR - 20200309 IS - 1756-8722 (Electronic) IS - 1756-8722 (Linking) VI - 11 IP - 1 DP - 2018 Dec 20 TI - A phase 1, open-label study of LCAR-B38M, a chimeric antigen receptor T cell therapy directed against B cell maturation antigen, in patients with relapsed or refractory multiple myeloma. PG - 141 LID - 10.1186/s13045-018-0681-6 [doi] LID - 141 AB - BACKGROUND: Chimeric antigen receptor (CAR) T cell therapy has demonstrated proven efficacy in some hematologic cancers. We evaluated the safety and efficacy of LCAR-B38M, a dual epitope-binding CAR T cell therapy directed against 2 distinct B cell maturation antigen epitopes, in patients with relapsed/refractory (R/R) multiple myeloma (MM). METHODS: This ongoing phase 1, single-arm, open-label, multicenter study enrolled patients (18 to 80 years) with R/R MM. Lymphodepletion was performed using cyclophosphamide 300 mg/m(2). LCAR-B38M CAR T cells (median CAR+ T cells, 0.5 x 10(6) cells/kg [range, 0.07 to 2.1 x 10(6)]) were infused in 3 separate infusions. The primary objective is to evaluate the safety of LCAR-B38M CAR T cells; the secondary objective is to evaluate the antimyeloma response of the treatment based on the general guidelines of the International Myeloma Working Group. RESULTS: At data cutoff, 57 patients had received LCAR-B38M CAR T cells. All patients experienced >/= 1 adverse events (AEs). Grade >/= 3 AEs were reported in 37/57 patients (65%); most common were leukopenia (17/57; 30%), thrombocytopenia (13/57; 23%), and aspartate aminotransferase increased (12/57; 21%). Cytokine release syndrome occurred in 51/57 patients (90%); 4/57 (7%) had grade >/= 3 cases. One patient reported neurotoxicity of grade 1 aphasia, agitation, and seizure-like activity. The overall response rate was 88% (95% confidence interval [CI], 76 to 95); 39/57 patients (68%) achieved a complete response, 3/57 (5%) achieved a very good partial response, and 8/57 (14%) achieved a partial response. Minimal residual disease was negative for 36/57 (63%) patients. The median time to response was 1 month (range, 0.4 to 3.5). At a median follow-up of 8 months, median progression-free survival was 15 months (95% CI, 11 to not estimable). Median overall survival for all patients was not reached. CONCLUSIONS: LCAR-B38M CAR T cell therapy displayed a manageable safety profile and demonstrated deep and durable responses in patients with R/R MM. TRIAL REGISTRATION: ClinicalTrials.gov , NCT03090659 ; Registered on March 27, 2017, retrospectively registered. FAU - Zhao, Wan-Hong AU - Zhao WH AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Liu, Jie AU - Liu J AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Wang, Bai-Yan AU - Wang BY AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Chen, Yin-Xia AU - Chen YX AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Cao, Xing-Mei AU - Cao XM AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Yang, Yun AU - Yang Y AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Yi-Lin AU - Zhang YL AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Wang, Fang-Xia AU - Wang FX AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Peng-Yu AU - Zhang PY AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Lei, Bo AU - Lei B AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Gu, Liu-Fang AU - Gu LF AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Wang, Jian-Li AU - Wang JL AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Yang, Nan AU - Yang N AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Ru AU - Zhang R AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Hui AU - Zhang H AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Shen, Ying AU - Shen Y AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Bai, Ju AU - Bai J AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Xu, Yan AU - Xu Y AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Wang, Xu-Geng AU - Wang XG AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Rui-Li AU - Zhang RL AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Wei, Li-Li AU - Wei LL AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. FAU - Li, Zong-Fang AU - Li ZF AD - National-Local Joint Engineering Research Center of Biodiagnostics & Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, ShaanXi, China. FAU - Li, Zhen-Zhen AU - Li ZZ AD - National-Local Joint Engineering Research Center of Biodiagnostics & Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, ShaanXi, China. FAU - Geng, Yan AU - Geng Y AD - Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, ShaanXi, China. FAU - He, Qian AU - He Q AD - Department of Clinical Laboratory, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, ShaanXi, China. FAU - Zhuang, Qiu-Chuan AU - Zhuang QC AD - Nanjing Legend Biotech Inc., Nanjing, 210000, Jiangsu, China. FAU - Fan, Xiao-Hu AU - Fan XH AD - Nanjing Legend Biotech Inc., Nanjing, 210000, Jiangsu, China. FAU - He, Ai-Li AU - He AL AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. AD - National-Local Joint Engineering Research Center of Biodiagnostics & Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710004, ShaanXi, China. FAU - Zhang, Wang-Gang AU - Zhang WG AD - Department of Hematology, The Second Affiliated Hospital of Xi'an Jiaotong University, 157 West 5th Road, Xi'an, 710004, ShaanXi, China. zhangwanggang2003@yahoo.com. LA - eng SI - ClinicalTrials.gov/NCT03090659 PT - Clinical Trial, Phase I PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20181220 PL - England TA - J Hematol Oncol JT - Journal of hematology & oncology JID - 101468937 RN - 0 (B-Cell Maturation Antigen) RN - 0 (Receptors, Chimeric Antigen) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - B-Cell Maturation Antigen/*metabolism MH - Female MH - Humans MH - Male MH - Middle Aged MH - Multiple Myeloma/*drug therapy/pathology MH - Receptors, Chimeric Antigen/*metabolism MH - Remission Induction MH - Young Adult PMC - PMC6302465 OTO - NOTNLM OT - BCMA OT - CAR T OT - Chimeric antigen receptor OT - Multiple myeloma OT - Refractory OT - Relapsed COIS- ETHICS APPROVAL AND CONSENT TO PARTICIPATE: This study was performed in accordance with the Declaration of Helsinki and was approved by the institutional independent ethics committee (reference number: 2016002) of The Second Affiliated Hospital of Xi'an Jiaotong University. All patients provided written informed consent. CONSENT FOR PUBLICATION: Consent from patients whose data are included in this article has been obtained in writing. COMPETING INTERESTS: Q-CZ and X-HF are employees of Nanjing Legend Biotech Co. All other authors declare that they have no competing interests. PUBLISHER'S NOTE: Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations. EDAT- 2018/12/24 06:00 MHDA- 2020/01/10 06:00 PMCR- 2018/12/20 CRDT- 2018/12/22 06:00 PHST- 2018/11/14 00:00 [received] PHST- 2018/11/23 00:00 [accepted] PHST- 2018/12/22 06:00 [entrez] PHST- 2018/12/24 06:00 [pubmed] PHST- 2020/01/10 06:00 [medline] PHST- 2018/12/20 00:00 [pmc-release] AID - 10.1186/s13045-018-0681-6 [pii] AID - 681 [pii] AID - 10.1186/s13045-018-0681-6 [doi] PST - epublish SO - J Hematol Oncol. 2018 Dec 20;11(1):141. doi: 10.1186/s13045-018-0681-6.