טיפול בקו שני

I answer from abroad.<br />most drug combinations for lung cancer contain the drug cis platinum, used in 1st line. <br />If first line has failed, there is no sense in giving cis platin in 2nd line, again, as it already failed and is no more active. This is why second line does not include this drug <br />combining 2 other drugs (for example taxotere + navelbine) is too toxic and has not been shown to be more effective