ESMO open · 2024
Tislelizumab plus chemotherapy as first-line treatment of locally advanced or metastatic nonsquamous non-small-cell lung cancer (final analysis of RATIONALE-304: a randomized phase III trial).
СтатьяРандомизированное исследованиеКлиническое исследование III фазыМногоцентровое исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Lu S, Wang J, Yu Y, Yu X, Hu Y, Ma Z, Li X, He W, Bao Y, Wang M
Аннотация
BACKGROUND: The purpose of this study was to report an updated, final analysis with longer follow-up for the open-label phase III RATIONALE-304 study of first-line tislelizumab plus chemotherapy versus chemotherapy alone for advanced nonsquamous non-small-cell lung cancer (nsq-NSCLC).
MATERIALS AND METHODS: Patients with histologically confirmed stage IIIB/IV nsq-NSCLC were randomized (2 : 1) to 4-6 cycles of tislelizumab plus platinum-based chemotherapy and pemetrexed every 3 weeks, followed by maintenance tislelizumab and pemetrexed, or platinum-based chemotherapy and pemetrexed alone every 3 weeks followed by maintenance pemetrexed. The primary endpoint was independent review committee (IRC)-assessed progression-free survival (PFSIRC). Overall survival (OS), safety, and tolerability were secondary endpoints.
RESULTS: Overall, 334 patients were randomized (tislelizumab plus chemotherapy: n = 223; chemotherapy: n = 111). At final analysis (median follow-up 16.1 months), safety/tolerability profiles in both arms were consistent with the interim analysis. Tislelizumab plus chemotherapy continued to demonstrate prolongation of PFSIRC versus chemotherapy alone {stratified hazard ratio (HR) 0.63 [95% confidence interval (CI) 0.47-0.86]; median PFSIRC 9.8 months (95% CI 8.9-11.7 months) versus 7.6 months (95% CI 5.6-8.0 months), respectively}. OS stratified HR for tislelizumab plus chemotherapy versus chemotherapy was 0.90 (95% CI 0.63-1.28), with median OS of 21.4 months (95% CI 17.7 months-not estimable) versus 21.3 months (95% CI 15.6 months-not estimable), respectively. At a subsequent ad hoc analysis (median follow-up 19.3 months), OS HR between arms was 0.85 (95% CI 0.63-1.14); when adjusted for crossover using the two-stage method, the OS HR was 0.68 (95% CI 0.48-0.96).
CONCLUSIONS: After longer follow-up, first-line tislelizumab plus chemotherapy continued to demonstrate a manageable safety profile and a favorable PFS benefit over chemotherapy alone in patients with advanced/metastatic nsq-NSCLC.
MATERIALS AND METHODS: Patients with histologically confirmed stage IIIB/IV nsq-NSCLC were randomized (2 : 1) to 4-6 cycles of tislelizumab plus platinum-based chemotherapy and pemetrexed every 3 weeks, followed by maintenance tislelizumab and pemetrexed, or platinum-based chemotherapy and pemetrexed alone every 3 weeks followed by maintenance pemetrexed. The primary endpoint was independent review committee (IRC)-assessed progression-free survival (PFSIRC). Overall survival (OS), safety, and tolerability were secondary endpoints.
RESULTS: Overall, 334 patients were randomized (tislelizumab plus chemotherapy: n = 223; chemotherapy: n = 111). At final analysis (median follow-up 16.1 months), safety/tolerability profiles in both arms were consistent with the interim analysis. Tislelizumab plus chemotherapy continued to demonstrate prolongation of PFSIRC versus chemotherapy alone {stratified hazard ratio (HR) 0.63 [95% confidence interval (CI) 0.47-0.86]; median PFSIRC 9.8 months (95% CI 8.9-11.7 months) versus 7.6 months (95% CI 5.6-8.0 months), respectively}. OS stratified HR for tislelizumab plus chemotherapy versus chemotherapy was 0.90 (95% CI 0.63-1.28), with median OS of 21.4 months (95% CI 17.7 months-not estimable) versus 21.3 months (95% CI 15.6 months-not estimable), respectively. At a subsequent ad hoc analysis (median follow-up 19.3 months), OS HR between arms was 0.85 (95% CI 0.63-1.14); when adjusted for crossover using the two-stage method, the OS HR was 0.68 (95% CI 0.48-0.96).
CONCLUSIONS: After longer follow-up, first-line tislelizumab plus chemotherapy continued to demonstrate a manageable safety profile and a favorable PFS benefit over chemotherapy alone in patients with advanced/metastatic nsq-NSCLC.