We retrospectively reviewed 292 patients who received a second line of therapy post ASCT for their light chain amyloidosis. Most patients (40%) were treated with an alkylator + PI ± dex or PI ± dex followed by an alkylator + 2nd-gen IMiD ± dex or 2nd-gen IMiD ± dex (26%), an alkylator ± steroid or steroid monotherapy (19%), a 2nd-gen IMiD + PI ± dex (6%), an alkylator + thalidomide ± dex (5%), or daratumumab-based therapy (4%). The rate of CR or VGPR was 70% among the daratumumab-based group, 62% in the alkylator + PI ± dex or PI ± dex group, 55% in the alkylator + 2nd-gen IMiD ± dex or 2nd-gen IMiD ± dex group, 47% in the 2nd-gen IMiD + PI ± dex group, 24% in the alkylator ± steroid or steroid monotherapy group, and 18% in the alkylator + thalidomide ± dex group. The median OS was NR for the 2nd-gen IMiD + PI ± dex group and the daratumumab group, 130.4 months in the alkylator + 2nd-gen IMiD ± dex or 2nd-gen IMiD ± dex group, 100 months for the alkylator + PI ± dex or PI ± dex group, 36 months for the alkylator ± steroid or steroid monotherapy group, and 21 months for the alkylator + thalidomide ± dex group (P < 0.0001). The median OS was 100 months in patients who received melphalan 200 mg/m2 compared to 41 months in the 140 mg/m2 group (P < 0.0001). In conclusion, patients receiving novel therapy post ASCT and melphalan conditioning dosing at 200 mg/m2 at diagnosis had better outcomes.
我们回顾性分析了292名在自体干细胞移植后接受二线治疗的轻链淀粉样变性患者。多数患者(40%)接受了烷化剂联合蛋白酶体抑制剂±地塞米松、或蛋白酶体抑制剂±地塞米松治疗;其次为烷化剂联合二代免疫调节剂±地塞米松、或二代免疫调节剂±地塞米松(26%);烷化剂±类固醇或类固醇单药治疗(19%);二代免疫调节剂联合蛋白酶体抑制剂±地塞米松(6%);烷化剂联合沙利度胺±地塞米松(5%);以及基于达雷妥尤单抗的治疗方案(4%)。完全缓解或非常好的部分缓解率在达雷妥尤单抗组为70%,烷化剂联合蛋白酶体抑制剂±地塞米松或蛋白酶体抑制剂±地塞米松组为62%,烷化剂联合二代免疫调节剂±地塞米松或二代免疫调节剂±地塞米松组为55%,二代免疫调节剂联合蛋白酶体抑制剂±地塞米松组为47%,烷化剂±类固醇或类固醇单药治疗组为24%,烷化剂联合沙利度胺±地塞米松组为18%。二代免疫调节剂联合蛋白酶体抑制剂±地塞米松组和达雷妥尤单抗组的中位总生存期未达到;烷化剂联合二代免疫调节剂±地塞米松或二代免疫调节剂±地塞米松组为130.4个月;烷化剂联合蛋白酶体抑制剂±地塞米松或蛋白酶体抑制剂±地塞米松组为100个月;烷化剂±类固醇或类固醇单药治疗组为36个月;烷化剂联合沙利度胺±地塞米松组为21个月(P < 0.0001)。接受200毫克/平方米马法兰治疗的患者中位总生存期为100个月,而140毫克/平方米组为41个月(P < 0.0001)。总之,在自体干细胞移植后接受新型治疗、且诊断时采用200毫克/平方米马法兰预处理剂量的患者具有更好的预后。