Hai Cheng , Lingyan Shao , Dandan Wang , Yegan Chen , Yingjun Sun , Zihan Chen , Jiaying Liu , Xue Wang , Wei Chen , Wei Sang , Kunming Qi , Zhenyu Li , Cai Sun , Ming Shi , Jianlin Qiao , Qingyun Wu , Lingyu Zeng , Junnian Zheng , Li Li , Kailin Xu , Jiang Cao
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引用次数: 0
Abstract
Background
Many studies have demonstrated the effectiveness of chimeric antigen receptor-T (CAR-T) cell therapy for relapsed or refractory multiple myeloma (RRMM), but the hematologic toxicity has not been well characterized.
Methods
A total of 111 adults with RRMM who received BCMA CAR-T cells, BCMA + CD19 CAR-T cells or tandem BCMA/CD19 dual-target (BC19) CAR-T cells infusion were enrolled. We characterized cytopenia and hematologic recovery at different time points after CAR-T-cell therapy, analyzed the effect of cytopenia on prognosis and identified the risk factors.
Results
Patients had a high probability of cytopenia, with anemia, neutropenia and thrombocytopenia occurring in 92%, 95% and 73%, respectively. There were 60 (54%) patients had prolonged hematologic toxicity (PHT) after D28. The median hemoglobin and platelet count were significantly lower at D28 post-CAR-T cell therapy than at baseline. Hemoglobin increased to above baseline at D90. The median absolute neutrophil count was lower than baseline at D0 and D28, and it recovered to baseline at D180. The baseline level of lactate dehydrogenase was associated with thrombocytopenia. Extramedullary involvement was associated with hemoglobin recovery, while the baseline level of albumin and types of CAR-T were related to platelet recovery. Patients with anemia at baseline and at D0, D180 and D360 had shorter progression-free survival (PFS), while anemia at D0, D60, D180 and D360 was associated with shorter overall survival (OS). Neutropenia at D0 was associated with shorter PFS and patients with neutropenia at D90 or D180 had shorter OS. Patients with thrombocytopenia at any time had shorter PFS and OS. Compared to patients without PHT, patients with PHT had shorter PFS and OS.
Conclusions
The majority of RRMM patients treated with CAR-T cells experienced cytopenia. Cytopenia occurred at specific time points was associated with a poorer prognosis.
期刊介绍:
The journal brings readers the latest developments in the fast moving field of cellular therapy in man. This includes cell therapy for cancer, immune disorders, inherited diseases, tissue repair and regenerative medicine. The journal covers the science, translational development and treatment with variety of cell types including hematopoietic stem cells, immune cells (dendritic cells, NK, cells, T cells, antigen presenting cells) mesenchymal stromal cells, adipose cells, nerve, muscle, vascular and endothelial cells, and induced pluripotential stem cells. We also welcome manuscripts on subcellular derivatives such as exosomes. A specific focus is on translational research that brings cell therapy to the clinic. Cytotherapy publishes original papers, reviews, position papers editorials, commentaries and letters to the editor. We welcome "Protocols in Cytotherapy" bringing standard operating procedure for production specific cell types for clinical use within the reach of the readership.