Lachowiez Curtis A, Atluri Himachandana, DiNardo Courtney D
Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.
Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA.
Ther Adv Hematol. 2022 Apr 29;13:20406207221093964. doi: 10.1177/20406207221093964. eCollection 2022.
The B-cell lymphoma 2 (BCL-2) inhibitor venetoclax (VEN) in combination with lower-intensity therapy is an efficacious treatment for acute myeloid leukemia (AML). VEN in combination with the hypomethylating agent azacitidine improved rates of response and measurable residual disease (MRD)-negative remissions in addition to overall survival in the pivotal phase 3 VIALE-A trial compared with azacitidine monotherapy and has since emerged as the current standard of care in older or unfit patients with AML. In younger, fit patients with AML, intensive induction and consolidation chemotherapy (IC) is commonly employed as frontline therapy; however, relapse remains the principal cause of treatment failure in approximately 30-40% of patients. Improved IC regimens that increase MRD-negative response rates, result in durable remissions, and enable transition to curative allogeneic hematopoietic stem cell transplantation in appropriate patients remain an area of active inquiry. Preliminary results from trials investigating the combination of VEN with IC have reported promising findings to date, with composite complete remission and MRD-negative remission rates of approximately 89-94% and 82-93%, respectively, correlating with improved 12-month event-free and overall survival compared to historical outcomes with IC. Herein, we discuss ongoing trials investigating VEN in combination with IC in addition to outcomes within specific molecularly defined subgroups; review the molecular mechanisms of sensitivity and resistance to VEN, and highlight future combinations of VEN with novel targeted therapies for the treatment of AML.
B细胞淋巴瘤2(BCL-2)抑制剂维奈克拉(VEN)与低强度疗法联合应用是急性髓系白血病(AML)的一种有效治疗方法。在关键的3期VIALE-A试验中,与阿扎胞苷单药治疗相比,VEN与低甲基化药物阿扎胞苷联合应用提高了缓解率、可测量残留病(MRD)阴性缓解率以及总生存率,此后已成为老年或身体不适的AML患者的当前标准治疗方法。在年轻、身体状况良好的AML患者中,强化诱导和巩固化疗(IC)通常作为一线治疗;然而,复发仍然是约30%-40%患者治疗失败的主要原因。提高MRD阴性缓解率、实现持久缓解并使合适患者能够过渡到治愈性异基因造血干细胞移植的改良IC方案仍然是一个积极探索的领域。迄今为止,研究VEN与IC联合应用的试验初步结果报告了有前景的发现,复合完全缓解率和MRD阴性缓解率分别约为89%-94%和82%-93%与IC的历史结果相比,12个月无事件生存率和总生存率有所提高。在此,我们讨论正在进行的研究VEN与IC联合应用的试验以及特定分子定义亚组内的结果;回顾对VEN敏感和耐药的分子机制,并强调VEN与新型靶向疗法联合用于治疗AML的未来组合。