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摘要: 多发性骨髓瘤目前仍是一种无法治愈的血液恶性肿瘤,以蛋白酶体抑制剂、免疫调节剂为代表的新药治疗使多发性骨髓瘤的预后明显改善,但残存的骨髓瘤干细胞在药物的压力选择下会发生克隆演化,导致耐药,复发难治不可避免,预后极差。在免疫治疗时代,以CD38单抗、靶向BCMA为代表的抗原嵌合受体T细胞、抗体药物偶联物、双特异性抗体为代表的免疫治疗已经证实能明显改善复发难治骨髓瘤的预后,成为多发性骨髓瘤治疗方面的研究热点,本文将对新的免疫治疗研究进展进行综述。Abstract: Multiple myeloma is still an incurable hematologic malignant tumor, and the prognosis of multiple myeloma has been significantly improved by the new drug treatment represented by proteasome inhibitors and immunomodulators. However, the residual myeloma stem cells will undergo clonal evolution under the pressure of drug selection, resulting in drug resistance, refractory recurrence and extremely poor prognosis. In the era of immunotherapy, immunotherapy represented by CD38 monoclonal antibody, chimeric antigen receptor T cells targeting BCMA, antibody drug conjugate and bisspecific antibody has been proven to significantly improve the prognosis of relapsed refractory myeloma, and has become a research hotspot in the treatment of multiple myeloma. This paper will review the progress of new immunotherapy research.
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表 1 单克隆抗体临床试验数据
名称 靶点 试验名称及阶段 纳入人数 既往治疗线数 缓解率 无进展生存 不良反应 TAK-079 CD38 NCT02219256Ⅰ期NCT03499280Ⅰ/Ⅱa期 34 4(2~12) RP2(600 mg),ORR 33%(n=9)临床试验正在进行 NR* 疲劳21%,贫血18%,中性粒细胞减少18%,白细胞减少15%;唯一与药物相关的严重不良反应为3级憩室炎 SAR442085 CD38 临床前研究阶段 VIS832 CD138 临床前研究阶段 R8H283 CD98 临床前研究阶段 *NR:临床上未达到预期结果。 表 2 ADC临床试验数据
名称 靶点 化学毒物 试验名称及阶段 纳入人数 既往治疗线数 缓解率 无进展生存 不良反应 MDI2228 BCMA tesirine NCT03489525Ⅰ期 82 2~11 ORR 61%,≥VGPR率24% 未报道 畏光53.7%,血小板减少31.7%,皮疹29.3% HDP-101 BCMA α-天蒿素 NCT04879043Ⅰ/Ⅱa期 临床试验正在进行 表 3 双特异性抗体临床试验数据
名称 靶点 试验名称及阶段 纳入人数 既往治疗线数 缓解率 无进展生存/月 疗效持续时间/月 不良反应 ABBV-383(TNB-383B) BCMA×CD3 NCT03933735Ⅰ期 124 5 ORR 57%(n=122,所有剂量),≥VGPR率43%;≥60 mg剂量队列(n=49)中ORR和≥VGPR率分别为59%和39%;≥40 mg剂量队列(n=79)中ORR和≥VGPR率分别为68%和54% NR* NR* 中性粒细胞减少37%,贫血29%;CRS 57%(3/4级3%);疲劳30% Cevostamab FcRH5×CD3 NCT03275103Ⅰ期 160 6 160 mg剂量水平ORR 54.5%;90 mg剂量水平ORR 36.7% 未报道 15.6(95%CI6.4~21.6) CRS 80% Talquetamab(JNJ-64407-564) GPRC5D×CD3 NCT03399799Ⅰ期 78 5.5(2~14) 405 μg/kg组ORR 70%,≥VGPR率57% 未报道 NR* 中性粒细胞减少67%(3/4级53%);CRS 77%(3/4级3.3%);皮肤相关和指甲疾病83%,皮肤去角质37% 800 μg/kg组ORR 64%,≥VGPR率52% 中性粒细胞减少36%(3/4级23%);CRS 80%,无3/4级;皮肤及指甲疾病75%,皮肤去角质39% RO7297089 BCMA×CD16A NCT04434469Ⅰ期 21 8(2~11) ORR NR*达VGPR 1例 NR* NR* 贫血52.4%,输注相关反应47.6%,背痛23.8%,ALT升高19%,血小板减少19% CTX-8573 BCMA×NKp30 临床前研究阶段 IBI379 BCMA×CD3 临床前研究阶段 *NR:临床上未达到预期结果。 表 4 CAR-T细胞疗法临床试验数据
名称 靶点 试验名称阶段 纳入人数 既往治疗线数 缓解率 无进展生存 不良反应 CT103A(IBI326) BCMA NCT05066646Ⅰ/Ⅱ期 79 5(3~23) ORR 94.9%,≥CR率68.4%,MRD(-)CR率100% 所有队列的PFS尚未达到;在既往CAR-T患者中为7.5个月(95%CI 2.9~未达到) ≥3级93.7%:中性粒细胞减少82.3%,血小板减少59.5%,淋巴细胞减少58.2%;CRS 94.9% C-CAR088 BCMA NCT03815383
NCT03751293
NCT04295018
NCT04322292
Ⅰ期31 4 ORR 96.4%(n=28),≥CR率57.1%,MRD(-)CR率93.7% NR* CRS 93.5%,3例(9.6%)发生3级CRS,1例(3.2%)出现1级神经毒性 Decartes-08 BCMA NCT04816526Ⅱ期 临床试验正在进行 *NR:临床上未达到预期结果。 -
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