KPIX CBS Evening News With Scott Pelley November 19, 2011
with scott pelley. >> pelley: we're beginning tonight with news about one of the top selling cancer drugs, avastin. it's used to treat a variety of cancers but the f.d.a. said uld noit should no longer be used to treat breast cancer because there's no evidence it helps patients and it may actually hurt them. esastin is big business, with sales of $3 billion a year, and it's estimated that as many as a800 americans are taking it for breast cancer. 5,80 we asked dr. jon lapook what the f.d.a. announcement means for them. >> avastin is to me part of my safety net. >> reporter: breast ca...