上篇介绍了ADC作用机制与目前获批的T-DM1和DS-8201研究成果,本篇将聚焦ADC安全性。 我们在上篇了解了ADC的作用机制,即利用单抗将小分子药物准确地投送到目标肿瘤细胞,这种机制确保了ADC药物递送效率高、药物不良反应(ADR)可控。
TDM1治疗中最常见(发生率≥25%)的ADR包括恶心、乏力、骨骼肌肉疼痛、出血、头痛、转氨酶升高、血小板减少以及周围神经病变,多为1级或2级。最常见(发生率>0.5%)的严重ADR包括出血、发热、血小板减少、呼吸困难、腹痛、骨骼肌肉疼痛以及呕吐[1]。 与曲妥珠单抗 紫杉醇相比,T-DM1的临床相关毒性反应总发生率较低或无差异[4,5]。T-DM1治疗的患者生活质量更优,神经病变或脱发更少,工作效率更高,尤其治疗开始后12周内,某些差异在随访期延长时仍持续[4,5]。
目前,TDM1为唯一在中国获批乳腺癌适应证(辅助治疗)的ADC。在全球,T-DM1已批准用于早期与晚期乳腺癌。近期DS-8201的加速审批为后线用药提供了选择。另外,ATEMPT [4]与MARIANNI研究[5]提示,T-DM1有望作为不适合紫杉烷类( 曲妥珠单抗)特定乳腺癌人群的替代策略。共克时艰,T-DM1与您同在。 参考文献 1.注射用恩美曲妥珠单抗说明书. 核准日期:2020年1月21日. 2.Modi ND, Sorich MJ, Rowland A, et al.Predicting Thrombocytopenia in Patients With Breast Cancer Treated WithAdo-trastuzumab Emtansine. Clin Breast Cancer. 2019pii:S1526-8209(19)30715-3. 3.Pondé N, Ameye L, Lambertini M, et al. Trastuzumabemtansine (T-DM1)-associated cardiotoxicity: Pooled analysis in advancedHER2-positive breast cancer. Eur J Cancer. 2020;126:65-73. 4.Tolaney SM, TrippaL, Barry W, et al. TBCRC 033: A randomized phase II study of adjuvanttrastuzumab emtansine vs paclitaxel in combination with trastuzumab for stage IHER2-positive breast cancer (ATEMPT). 2019 San Antonio Breast Cancer Symposium.Abstract GS1-05. Presented December 11, 2019. 5.Perez EA, BarriosC, Eiermann W, et al. Trastuzumab emtansine with or without pertuzumab versustrastuzumab with taxane for human epidermal growth factor receptor 2-positiveadvanced breast cancer: Final results from MARIANNE. Cancer. 2019;125(22):3974-3984. 6.Tamura K,Tsurutani J, Takahashi S, et al. Trastuzumab deruxtecan (DS-8201a) in patientswith advanced HER2-positive breast cancer previously treated with trastuzumabemtansine: a dose-expansion, phase 1 study. Lancet Oncol. 2019(6):816-826. |
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