Clarence Ahlem has more than 30 years of pharmaceutical development experience. His scientific breadth includes synthetic bifunctional antibodies, hematopoietic stem cell purification, and pharmacological characterization of the dehydroepiandrosterone metabolome and associated pharmaceutical science. Clarence worked for four years at UCSD prior to joining the Therapeutics Division at Hybritech in San Diego, CA, where he worked for six years developing synthetic bifunctional antibodies and their applications to cancer therapy. Mr. Ahlem left Hybritech to initiate product development at Systemix, Inc. in Palo Alto, CA, where he was manager of bio-organic chemistry for 4 years. He left Systemix to join Prolinx Biochemistry in Bothell, WA, and moved to San Diego in 1997 to join Hollis-Eden Pharmaceuticals (subsequently Harbor BioSciences and Harbor Therapeutics), where he was Vice President of Product Development until 2014.