The combination of mitomycin plus vindesine in advanced non-small cell lung cancer induced an objective response rate of 23% in 43 evaluable patients: 33% in nonpretreated patients (nine responses among 27 patients) and 6% in pretreated patients (one response among 16 patients). Toxicity was tolerable. We conclude that the regimen was a moderately active and easy to administer treatment for advanced non-small cell lung cancer.