<qa>  What is the main activity of Docetaxel and Gemcitabine given on day 1 andDocetaxel and Gemcitabine given on day 1 and 8 of a 21-day schedule has substantial activity in non-small cell lung cancer. Both first and second-line patients have response rates comparable to or better than other standard combination regimens. Grade 34 neutropenia occurs in up to half of patients not given growth factor support. 