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1.
Cancer Research and Treatment ; : 937-946, 2017.
Artículo en Inglés | WPRIM | ID: wpr-160278

RESUMEN

PURPOSE: The phase 3 randomized SQUIRE study revealed significantly longer overall survival (OS) and progression-free survival (PFS) for necitumumab plus gemcitabine and cisplatin (neci+GC) than for gemcitabine and cisplatin alone (GC) in 1,093 patients with previously untreated advanced squamous non-small cell lung cancer (NSCLC). This post hoc subgroup analysis assessed the efficacy and safety of neci+GC among East Asian (EA) patients enrolled in the study. MATERIALS AND METHODS: All patients received up to six 3-week cycles of gemcitabine (days 1 and 8, 1,250 mg/m²) and cisplatin (day 1, 75 mg/m²). Patients in the neci+GC arm also received necitumumab (days 1 and 8, 800 mg) until disease progression or unacceptable toxicity. Hazard ratios (HRs) and 95% confidence intervals (CIs) were estimated from stratified Cox proportional hazards models. RESULTS: In EA patients, there were improvements for neci+GC (n=43) versus GC (n=41) in OS (HR, 0.805; 95% CI, 0.484 to 1.341) and PFS (HR, 0.720; 95% CI, 0.439 to 1.180), consistent with the results for non-EA patients observed in the present study. The overall safety data were consistent between EA and non-EA patients. A numerically higher proportion of patients experienced serious adverse events (AEs), grade ≥ 3 AEs, and AEs with an outcome of death for neci+GC versus GC in EA patients and EA patients versus non-EA patients for neci+GC. CONCLUSION: Although limited by the small sample size and post hoc nature of the analysis, these findings are consistent with those of the overall study and suggest that neci+GC offers a survival advantage and favorable benefit/risk for EA patients with advanced squamous NSCLC.


Asunto(s)
Humanos , Brazo , Pueblo Asiatico , Carcinoma de Pulmón de Células no Pequeñas , Cisplatino , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Modelos de Riesgos Proporcionales , Receptores ErbB , Tamaño de la Muestra
2.
Cancer Research and Treatment ; : 1177-1186, 2016.
Artículo en Inglés | WPRIM | ID: wpr-109758

RESUMEN

PURPOSE: REVEL demonstrated improved overall survival (OS), progression-free survival (PFS), and objective response rate (ORR) with docetaxel+ramucirumab versus docetaxel+placebo in 1,253 intent-to-treat (ITT) stage IV non-small cell lung cancer patients with disease progression following platinum-based chemotherapy. Results from the East Asian subgroup analysis are reported. MATERIALS AND METHODS: Subgroup analyses were performed in the East Asian ITT population (n=89). Kaplan-Meier analysis and Cox proportional hazards regression were performed for OS and PFS, and the Cochran-Mantel-Haenszel test was performed for response rate. RESULTS: In docetaxel+ramucirumab (n=43) versus docetaxel+placebo (n=46), median OS was 15.44 months versus 10.17 months (hazard ratio [HR], 0.762; 95% confidence interval [CI], 0.444 to 1.307), median PFS was 4.88 months versus 2.79 months (HR, 0.658; 95% CI, 0.408 to 1.060), and ORR was 25.6% (95% CI, 13.5 to 41.2) versus 8.7% (95% CI, 2.4 to 20.8). Due to increased incidence of neutropenia and febrile neutropenia in East Asian patients, starting dose of docetaxel was reduced for newly enrolled East Asian patients (75 to 60 mg/m², n=24). In docetaxel+ramucirumab versus docetaxel+placebo, incidence of neutropenia was 84.4% versus 72.7% (75 mg/m²) and 54.5% versus 38.5% (60 mg/m²). Incidence of febrile neutropenia was 43.8% versus 12.1% (75 mg/m²) and 0% versus 7.7% (60 mg/m²). CONCLUSION: Results of this subgroup analysis showed a trend favoring ramucirumab+docetaxel for median OS, PFS, and improved ORR in East Asian patients, consistent with ITT population results. Reduction of starting dose of docetaxel in East Asian patients was associated with improved safety.


Asunto(s)
Humanos , Pueblo Asiatico , Carcinoma de Pulmón de Células no Pequeñas , Progresión de la Enfermedad , Supervivencia sin Enfermedad , Quimioterapia , Asia Oriental , Neutropenia Febril , Incidencia , Estimación de Kaplan-Meier , Neutropenia
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