Cytotoxic chemotherapy in advanced non-small cell lung cancer: a review of standard treatment paradigms.

A 1995 meta-analysis of nine trials involving 1190 patients by the Non-Small Cell Lung Cancer Collaborative Group reported that in advanced metastatic disease, platinum-based chemotherapy provides a survival benefit compared with best supportive care. Since then, several randomized trials using either platinum-based combination regimens or selected new single agents have confirmed this observation of a modest survival advantage, as well as improved quality of life. New agents such as paclitaxel, docetaxel, vinorelbine, gemcitabine, and irinotecan have shown significant single-agent activity in advanced non-small cell lung cancer. Two recent meta-analyses have suggested that regimens including these newer agents offer modest improvement in outcomes compared with older regimens. Several randomized trials have evaluated these modern platinum-based doublets and suggested that no one combination is superior when using survival as the primary measure of outcome. Future research may improve outcomes through identifying prognostic markers of treatment response to both standard cytotoxic and newer "targeted" therapies.