Glofitamab-Based Therapy for Relapsed or Refractory CNS Lymphoma: A Multicenter Retrospective Study
Ruixian Xing, Apeng Yang, Juan Huang, Liang Wang, Wei Guo, Qu Cui, Xiaoqiong Tang, Yuanyuan Ma, Kai Hu, Tianheng He, Danyang Wu, Xiaofang Deng, Yajing Zhang, Kaili Zhong, Yang Liu, Yixian Guo, Ying Wang, Chan Long, Chongyang Wu, Xin Lu, Fengmin Li, Jiefei Bai, Jun Qian, Xuefei Sun, Wenrong Huang, Hui Zhou, Huilai Zhang, Ou Bai, Xiaobing Huang, Zhiyong Zeng, Lin FuAbstract
Relapsed or refractory CNS lymphoma (R/R CNSL) has limited treatment options. This multicenter retrospective study enrolled 84 consecutive R/R CNSL patients (median age 59 years; 53 PCNSL, 31 SCNSL) to evaluate efficacy and safety profiles of glofitamab therapy. With a median of 2.5 prior lines of therapy, the objective response rates (ORR) and complete response rates (CRR) for PCNSL were 88% (CRR 59%) with glofitamab monotherapy (n=32) and 100% (CRR 81%) with combination therapy (n=21), respectively; for SCNSL, ORR and CRR were 88% (CRR 75%) with glofitamab monotherapy (n=8) and 91% (CRR 65%) with combination therapy (n=23). At 14.7 months follow-up, median progression-free survival was 19.5 months for PCNSL and 13.5 months for SCNSL. Cytokine release syndrome occurred in 40% (all grade 1-2) of patients, and ICANS in 8%. Glofitamab-based therapy demonstrated substantial activity with manageable toxicity in this study, offering a promising treatment paradigm for R/R CNSL patients.