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SWOG/NCI Phase II Dual Anti-CTLA-4/PD-1 Blockade in Rare Tumors (DART): Non-Epithelial Ovarian Cancer
Clinical Cancer Research ( IF 10.0 ) Pub Date : 2024-10-17 , DOI: 10.1158/1078-0432.ccr-24-0606
Young Kwang Chae, Megan Othus, Sandip Pravin. Patel, Kelly J. Wilkinson, Emily M. Whitman-Purves, Jayanthi Lea, John M. Schallenkamp, Nabil Adra, Leonard J. Appleman, Mitchell Alden, Jessica Thomes Pepin, John A. Ellerton, Andrew Poklepovic, Adam Walter, Murtuza M. Rampurwala, William R. Robinson, Hye Sung Kim, Liam IL-Young Chung, Christine M. McLeod, Gabby Lopez, Helen X. Chen, Elad Sharon, Howard Streicher, Christopher W. Ryan, Charles D. Blanke, Razelle Kurzrock

Background: The role of dual checkpoint inhibition in advanced rare/ultra-rare non-epithelial ovarian cancers (NEOCs) is yet to be explored. Methods: DART is a prospective, multicenter (1,016 US sites), multi-cohort, single-arm phase II trial conducted through the Early Therapeutics and Rare Cancer SWOG/NCI Committee, assessing ipilimumab (anti-CTLA-4) (1mg/kg every 6 weeks) and nivolumab (anti-PD-1) (240mg every 2 weeks) in adults with advanced NEOCs who lack beneficial standard therapy. Primary outcome was overall response rate [ORR; complete response (CR)/partial response (PR)]; secondary outcomes were progression-free survival (PFS), overall survival (OS), clinical benefit rate [CBR; stable disease (SD) ≥6 months plus ORR], and toxicity. Results: Seventeen patients (median age: 64; number of prior therapies ranged from 0-8 with no immunotherapy exposure; 8 granulosa, 6 carcinosarcomas, 1 Sertoli-Leydig, 1 yolk sac, 1 Wolffian) were evaluated. In granulosa cell tumors, ORR was 25% (n=2/8; 1 CR, 1 PR) and CBR, 50% (n=4/8); PFS of 58.3 (CR), 50.7+ (PR), 30.4 (SD), and 8.7 (SD) months. Median PFS was 3.5 months (95% confidence intervals (CI) 1.7-11.2 months); median OS, 42.5 months (95% CI 10.1 months-not reached). One Sertoli-Leydig cell tumor showed a 22% regression (PFS 11.2 months). Carcinosarcomas had no response. Three participants (18%) discontinued treatment due to grade 3-4 adverse events. Conclusions: Ipilimumab-nivolumab shows activity in treatment-refractory granulosa cell tumors, with 25% (n=2/8) of patients experiencing either CR or PR lasting over 4 years.​

中文翻译:


SWOG/NCI II 期双重抗 CTLA-4/PD-1 阻断罕见肿瘤 (DART):非上皮性卵巢癌



背景:双检查点抑制在晚期罕见/超罕见非上皮性卵巢癌 (NEOC) 中的作用尚待探索。方法:DART 是一项前瞻性、多中心 (1,016 个美国站点)、多队列、单臂 II 期试验,通过早期治疗和罕见癌症 SWOG/NCI 委员会进行,评估 ipilimumab (抗 CTLA-4) (每 6 周 1mg/kg) 和纳武利尤单抗(抗 PD-1)(每 2 周 240mg)在缺乏有益标准治疗的晚期 NEOCs 成人患者中。主要结局是总缓解率 [ORR;完全缓解 (CR)/部分缓解 (PR)];次要结局是无进展生存期 (PFS) 、总生存期 (OS)、临床获益率 [CBR;疾病稳定 (SD) ≥6 个月加 ORR] 和毒性。结果: 评估了 17 例患者 (中位年龄: 64;既往治疗次数为 0-8 例,无免疫治疗暴露;8 例颗粒瘤,6 例癌肉瘤,1 例睾丸睾丸间质,1 例卵黄囊,1 例 Wolffian)。在颗粒细胞瘤中,ORR 为 25% (n=2/8;1 CR,1 PR) 和 CBR,为 50% (n=4/8);PFS 为 58.3 (CR) 、 50.7+ (PR) 、 30.4 (SD) 和 8.7 (SD) 个月。中位 PFS 为 3.5 个月 (95% 置信区间 (CI) 为 1.7-11.2 个月);中位 OS 为 42.5 个月 (95% CI 10.1 个月 - 未达到)。1 例 Sertoli-Leydig 细胞瘤显示 22% 的消退 (PFS 11.2 个月)。癌肉瘤没有反应。3 名参与者 (18%) 因 3-4 级不良事件停止治疗。结论: Ipilimumab-nivolumab 在难治性颗粒细胞瘤中显示出活性,25% (n=2/8) 的患者经历 CR 或 PR 持续超过 4 年。
更新日期:2024-10-17
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