A Phase 1 First-in-Human Study of the MCL-1 Inhibitor AZD5991 in Patients with Relapsed/Refractory Hematologic Malignancies.

IF 10 1区 医学 Q1 ONCOLOGY
Pinkal Desai, Sagar Lonial, Amanda Cashen, Manali Kamdar, Ian Flinn, Susan O'Brien, Jacqueline S Garcia, Neha Korde, Javid Moslehi, Margaret Wey, Patricia Cheung, Shringi Sharma, Damilola Olabode, Hong Chen, Firasath Ali Syed, Mary Liu, Jamal Saeh, Marcio Andrade-Campos, Tapan M Kadia, James S Blachly
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引用次数: 0

Abstract

Purpose: AZD5991, a human MCL-1 inhibitor, was assessed for safety, tolerability, pharmacokinetics, and antitumor activity as monotherapy and in combination with venetoclax in patients with relapsed or refractory hematologic malignancies.

Patients and methods: In the monotherapy cohort (n = 61), patients with hematologic malignancies received AZD5991 intravenously in escalating doses either once or twice weekly, following intrapatient dose escalation, during a 3-week cycle. In the combination cohort (n = 17), patients with acute myeloid leukemia and myelodysplastic syndrome received escalating doses of AZD5991 and venetoclax during either a 3- or 4-week cycle. Primary objectives were safety and maximum tolerated dose; secondary objectives included plasma pharmacokinetics and antitumor activity.

Results: The most common (≥30%) adverse events were diarrhea (59.0%), nausea (55.1%), and vomiting (47.4%). Four deaths occurred because of adverse events: cardiac arrest, sepsis, tumor lysis syndrome, and acute respiratory failure; only tumor lysis syndrome was related to AZD5991. Dose-limiting toxicities occurred in five patients. Three patients with myelodysplastic syndrome achieved an objective response: one marrow complete remission without hematologic improvement, one partial remission with AZD5991 monotherapy, and one marrow complete remission with AZD5991 + venetoclax. Asymptomatic elevations of troponin I or T were observed in eight (10.3%) patients. Post hoc retrospective analysis revealed elevated troponin T in 14/31 patients before any AZD5991 dose and in 54/65 patients after any AZD5991 dose at or after Cycle 1. No associations were found between elevated troponin and cardiovascular risk factors.

Conclusions: Treatment with AZD5991 was associated with high incidence of laboratory troponin elevation and a low overall response rate.

一项针对复发/难治性血液系统恶性肿瘤患者的 mcl-1 抑制剂 azd5991 的 1 期首次人体试验研究。
研究背景在复发性或难治性(R/R)血液恶性肿瘤患者中,评估了AZD5991(一种人类MCL-1抑制剂)作为单一疗法和与venetoclax联合疗法的安全性、耐受性、药代动力学(PK)和抗肿瘤活性:在单药治疗队列(61人)中,血液恶性肿瘤患者静脉滴注AZD5991,剂量递增,每周1次或2次。在联合用药队列(人数=17)中,急性髓性白血病(AML)和骨髓增生异常综合征(MDS)患者接受递增剂量的AZD5991和venetoclax治疗,周期为3周或4周。首要目标是安全性和最大耐受剂量;次要目标包括血浆PK和抗肿瘤活性:最常见(≥30%)的不良事件(AEs)是腹泻(59.0%)、恶心(55.1%)和呕吐(47.4%)。有四例死亡病例是由不良反应引起的:心脏骤停、败血症、肿瘤溶解综合征(TLS)和急性呼吸衰竭;只有TLS与AZD5991有关。5名患者出现了剂量限制性毒性反应。3 名 MDS 患者获得了客观应答:1例骨髓完全缓解(mCR),无血液学改善;1例部分缓解,AZD5991单药治疗;1例mCR,AZD5991+venetoclax治疗。8例(10.3%)患者观察到肌钙蛋白I或T无症状升高。事后回顾性分析显示,14/31 的患者在服用任何 AZD5991 药物前肌钙蛋白 T 升高,54/65 的患者在服用任何 AZD5991 药物后第一周期或之后肌钙蛋白 T 升高。肌钙蛋白升高与心血管风险因素之间没有关联:结论:AZD5991治疗与实验室肌钙蛋白升高的高发生率和低总体反应率有关。
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来源期刊
Clinical Cancer Research
Clinical Cancer Research 医学-肿瘤学
CiteScore
20.10
自引率
1.70%
发文量
1207
审稿时长
2.1 months
期刊介绍: Clinical Cancer Research is a journal focusing on groundbreaking research in cancer, specifically in the areas where the laboratory and the clinic intersect. Our primary interest lies in clinical trials that investigate novel treatments, accompanied by research on pharmacology, molecular alterations, and biomarkers that can predict response or resistance to these treatments. Furthermore, we prioritize laboratory and animal studies that explore new drugs and targeted agents with the potential to advance to clinical trials. We also encourage research on targetable mechanisms of cancer development, progression, and metastasis.
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