BOULDER, Colo.--(BUSINESS WIRE)--Array BioPharma Inc. (NASDAQ: ARRY) today announced that Karsten Witt, M.D., has joined the Company as Vice President of Clinical Sciences. With 26 years of experience in the field of medicine and 19 years working in the pharmaceutical industry, Dr. Witt will lead clinical science and drug safety activities for Array’s pipeline of targeted small molecule drugs to treat cancer and inflammatory diseases.