Choueiri T K, Kuzel T M, Tykodi S S, Verzoni E, Kluger H, Nair S, Perets R, George S, Gurney H, Pachynski R K, Folefac E, Castonguay V, Lee C-H, Vaishampayan U, Miller W H, Bhagavatheeswaran P, Wang Y, Gupta S, DeSilva H, Lee C-W, Escudier B, Motzer R J
Lank Center for Genitourinary Oncology, Dana-Farber Cancer Institute, Boston, MA, USA; Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA.
Division of Hematology/Oncology/Cell Therapy, Rush University Medical Center, Chicago, IL, USA.
ESMO Open. 2024 Dec;9(12):104073. doi: 10.1016/j.esmoop.2024.104073. Epub 2024 Dec 5.
The Fast Real-time Assessment of Combination Therapies in Immuno-ONcology study in patients with aRCC (FRACTION-RCC) was designed to assess new immuno-oncology (IO) combinations in patients with advanced renal cell carcinoma (aRCC). We present results in IO-naive patients treated with nivolumab (NIVO) + relatlimab (RELA) or NIVO + ipilimumab (IPI) in track 1.
The open-label, randomised, phase II FRACTION-RCC trial enrolled patients with aRCC from 32 hospitals and cancer centres across six countries. Patients were enrolled in track 1 (IO-naive) or track 2 (IO-experienced). IO-naive patients were stratified by previous tyrosine kinase inhibitor therapy and randomised to NIVO (240 mg) + RELA (80 mg) intravenously once every 2 weeks or NIVO (3 mg/kg) + IPI (1 mg/kg) intravenously once every 3 weeks for four doses, followed by NIVO (480 mg) once every 4 weeks, each up to ∼2 years. The primary endpoints were objective response by investigator (RECIST version 1.1), duration of response (DOR), and progression-free survival (PFS) rate at 24 weeks. Safety was a secondary endpoint; biomarker analyses were exploratory.
FRACTION-RCC enrolled patients between 2 February 2017 and 23 January 2020. In track 1, 30 patients each were treated with NIVO + RELA or NIVO + IPI (clinical database lock, 1 November 2021). With NIVO + RELA [median follow-up, 48.6 months; interquartile range (IQR) 46.9-51.7 months], objective response was 30% [95% confidence interval (CI) 15% to 49%], with 33 weeks (95% CI 16-53 weeks) median DOR. The PFS rate at 24 weeks was 43% (95% CI 25% to 60%). With NIVO + IPI (median follow-up, 48.7 months; IQR 47.1-52.0 months), the objective response was 20% (95% CI 8% to 39%), with the median DOR not reached (95% CI 33 weeks-not estimable). The PFS rate at 24 weeks was 49% (95% CI 29% to 66%). Higher baseline lymphocyte activation gene 3 (LAG-3) and programmed death-ligand 1 (PD-L1) expression levels were detected among track 1 NIVO + RELA responders. Grade 3-4 treatment-related adverse events were reported in 4/30 (13%) patients treated with NIVO + RELA and 10/30 (33%) patients treated with NIVO + IPI. No deaths were attributed to study treatments.
Results showed antitumour activity and manageable safety with NIVO + RELA. Findings also support NIVO + IPI as an effective combination regimen in IO-naive patients with aRCC.
晚期肾细胞癌(aRCC)患者免疫肿瘤联合疗法快速实时评估研究(FRACTION - RCC)旨在评估晚期肾细胞癌患者的新型免疫肿瘤(IO)联合疗法。我们展示了在第1组中接受纳武利尤单抗(NIVO)+瑞派利单抗(RELA)或NIVO + 伊匹木单抗(IPI)治疗的初治IO患者的结果。
开放标签、随机、II期FRACTION - RCC试验纳入了来自六个国家32家医院和癌症中心的aRCC患者。患者被纳入第1组(初治IO)或第2组(经治IO)。初治IO患者根据既往酪氨酸激酶抑制剂治疗情况进行分层,随机分为每2周静脉注射一次NIVO(240 mg)+ RELA(80 mg)或每3周静脉注射一次NIVO(3 mg/kg)+ IPI(1 mg/kg),共注射四剂,随后每4周注射一次NIVO(480 mg),每种方案最长持续约2年。主要终点为研究者评估的客观缓解率(根据RECIST 1.1版标准)、缓解持续时间(DOR)以及24周时的无进展生存率(PFS)。安全性为次要终点;生物标志物分析为探索性研究。
FRACTION - RCC在2017年2月2日至2020年1月23日期间纳入患者。在第1组中,各有30例患者接受NIVO + RELA或NIVO + IPI治疗(临床数据库锁定时间为2021年11月1日)。接受NIVO + RELA治疗的患者(中位随访时间48.6个月;四分位间距[IQR] 46.9 - 51.7个月),客观缓解率为30%[95%置信区间(CI)15%至49%],中位DOR为33周(95% CI 16 - 53周)。24周时的PFS率为43%(95% CI 25%至60%)。接受NIVO + IPI治疗的患者(中位随访时间48.7个月;IQR 47.1 - 52.0个月),客观缓解率为20%(95% CI 8%至39%),中位DOR未达到(95% CI 33周 - 无法估计)。24周时的PFS率为49%(95% CI 29%至66%)。在第1组接受NIVO + RELA治疗的缓解者中检测到更高的基线淋巴细胞激活基因3(LAG - 3)和程序性死亡配体1(PD - L1)表达水平。接受NIVO + RELA治疗的4/30(13%)患者和接受NIVO + IPI治疗的10/30(33%)患者报告了3 - 4级治疗相关不良事件。没有死亡病例归因于研究治疗。
结果显示NIVO + RELA具有抗肿瘤活性且安全性可控。研究结果还支持NIVO + IPI作为初治aRCC患者的有效联合治疗方案。