The lancet oncology
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The lancet oncology · Sep 2006
Meta AnalysisResponse rate or time to progression as predictors of survival in trials of metastatic colorectal cancer or non-small-cell lung cancer: a meta-analysis.
The duration and cost of cancer clinical trials could be reduced if a surrogate endpoint were used in place of survival. We did a meta-analysis to assess the extent to which two surrogates, tumour response and time to progression, are predictive of mortality in metastatic colorectal cancer and non-small-cell lung cancer. ⋯ Irrespective of trial size, large differences in tumour response rate are needed to predict a significant survival benefit. If surrogates are chosen as the primary endpoint in a clinical trial, time to progression is the preferred measure because more modest and achievable differences are needed for a significant survival benefit. Trials in metastatic lung cancer and colorectal cancer should measure survival as their primary outcome unless the surrogate outcome difference is anticipated to exceed the threshold effect size.
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The lancet oncology · Sep 2006
Randomized Controlled Trial Multicenter Study Comparative StudyAdjuvant vinorelbine plus cisplatin versus observation in patients with completely resected stage IB-IIIA non-small-cell lung cancer (Adjuvant Navelbine International Trialist Association [ANITA]): a randomised controlled trial.
Whether adjuvant chemotherapy improves survival of patients with non-small-cell lung cancer (NSCLC) is not known. We aimed to compare the effect of adjuvant vinorelbine plus cisplatin versus observation on survival in patients with completely resected NSCLC. ⋯ Adjuvant vinorelbine plus cisplatin extends survival in patients with completely resected NSCLC, better defining indication of adjuvant chemotherapy.