肾细胞癌
舒尼替尼
肿瘤科
医学
毒性
置信区间
临床试验
内科学
随机化
随机对照试验
析因分析
酪氨酸激酶抑制剂
意向治疗分析
癌症
作者
Elaine Chang,Jiaxi Zhou,Chi Song,Haley Gittleman,Laura L. Fernandes,Chana Weinstock,Michael B. Atkins,Sundeep Agrawal,Rajeshwari Sridhara,Nicole Gormley,Shenghui Tang,Daniel L. Suzman,Laleh Amiri‐Kordestani,Paul G. Kluetz,Richard Pazdur,Brian I. Rini,David F. McDermott,Meredith M. Regan
标识
DOI:10.1158/1078-0432.ccr-23-3719
摘要
Abstract Purpose: A clinically meaningful attribute of some immune-oncology (IO) regimens is potential durable clinical benefit during a treatment-free interval. We characterize treatment-free survival (TFS) with and without ongoing toxicity in trials of frontline IO-VEGF tyrosine kinase inhibitor (TKI) combinations in patients with advanced renal cell carcinoma (aRCC). Patients and Methods: Individual patient data were pooled by treatment arm from randomized trials submitted to the FDA evaluating IO-TKI combination in treatment-naïve aRCC with at least 30 months of median follow-up. OS, TFS, TFS with and without toxicity, and time to all protocol therapy cessation were assessed. TFS was estimated by 30-month restricted mean times defined as area between Kaplan-Meier curves for two time-to-event endpoints originating at randomization: time to all protocol therapy cessation and time to subsequent systemic therapy initiation or death. Results: Three trials met criteria for analysis; 1183 pts received IO-TKI versus 1184 on control arms received TKI alone (sunitinib [SUN]). IO-TKI and SUN groups spent 9% (2.7 months [95% confidence interval (CI): 1.8, 3.5]) and 10% (2.9 months [95% CI: 2.1, 3.8]) of the 30-mo period alive and treatment-free, respectively. Mean TFS without grade ≥3 toxicity was 1.7 and 2.3 months in IO-TKI and SUN groups, respectively. Conclusions and Relevance: In this post hoc partitioned survival analysis, TFS and TFS without toxicity appeared similar in the IO-TKI group compared to the SUN group. These findings may reflect continuation of TKI until progression per protocol design in all trials and discontinuation of IO after 2 years in 2 trials.
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