FILE - In this June 15 2005 file photo, a sign stands in front of the Bristol-Myers Squibb Company's headquarters in Lawrence Township, N.J. The Food and Drug Administration has approved a breakthrough cancer medication from Bristol-Myers Squibb Co. Friday, March 25, 2011, that researchers have heralded as the first drug to prolong the lives of patients with melanoma. (AP Photo/Mel Evans, file)

Photo by: Mel Evans

FILE - In this June 15 2005 file photo, a sign stands in front of the Bristol-Myers Squibb Company's headquarters in Lawrence Township, N.J. The Food and Drug Administration has approved a breakthrough cancer medication from Bristol-Myers Squibb Co. Friday, March 25, 2011, that researchers have heralded as the first drug to prolong the lives of patients with melanoma. (AP Photo/Mel Evans, file)