BCMA/CS1双靶点CAR-T细胞治疗多发性骨髓瘤并发血小板减少1例报告并文献复习

被引:0
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作者
李沛儒
李莹莹
都孟仪
江慧雯
梅恒
机构
[1] 华中科技大学同济医学院附属协和医院血液科,武汉
关键词
多发性骨髓瘤; 血小板减少; 嵌合抗原受体T细胞治疗; B细胞成熟抗原;
D O I
暂无
中图分类号
R733.3 [骨髓肿瘤]; R558.2 [];
学科分类号
摘要
目的探讨BCMA/CS1双靶点嵌合抗原受体T细胞(CAR-T细胞)治疗多发性骨髓瘤后并发血小板减少的临床表现和诊疗策略。方法回顾性收集2021年6月于华中科技大学同济医学院附属协和医院血液科接受BCMA/CS1双靶点CAR-T细胞治疗的1例多发性骨髓瘤患者的临床资料并进行分析。以"嵌合抗原受体T细胞治疗"、"血小板减少"、"chimeric antigen receptor-T cell therapy"、"CAR-T"、"thrombocytopenia"、"BCMA"、"CS1"为检索词, 检索自建库至2024年11月中文数据库(中国知网数据库、万方数据库)及Pubmed数据库中的文献并进行文献复习。结果患者, 男, 72岁, 于当地医院诊断为轻链κ型多发性骨髓瘤(R-ISS Ⅱ期)。患者治疗周期较长, 多次调整化疗方案后疾病控制不佳。经筛选患者符合BCMA/CS1双靶点CAR-T细胞临床试验(NCT04662099)纳入标准, 回输低剂量CAR-T细胞2个月后患者达到完全缓解。CAR-T细胞回输后第8天患者发生3级细胞因子释放综合征, 随后出现严重消化道出血症状及持续≥3级血小板减少, 伴促血小板生成素水平显著升高, 骨髓细胞学未见巨核细胞。患者接受利妥昔单抗治疗后血小板逐渐回升, 疗效显著。后因患者持续营养不良伴消瘦, 转入消化科治疗后失访。文献检索共检索到相关英文文献24篇, 中文文献8篇。结论 CAR-T细胞治疗相关血小板减少表现为血小板减少和巨核细胞生成障碍, 持续性血小板减少增加出血风险, 应用CD20单抗及支持治疗可有效改善血小板减少。
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