Dr. Brewster is Board certified toxicologist with over 25 years of research experience in toxicology and nearly 19 years experience in the pharmaceutical industry. He has extensive experience in the development of new molecular entities (small molecules), medical devices, large molecules, reformulations of marketed products and global product registration and support.  He has built programs and rejuvenated programs. At Monsanto he developed and led the thyroid biochemical toxicology and cell proliferation programs. During his tenure at Aventis and its predecessor companies he built and staffed an investigative toxicology group and assumed increasing responsibilities up to the Director of Toxicology and Head of US projects. At Purdue he reorganized and re-energized the organization and integrated the toxicology, pathology, bioanalytical, drug metabolism and toxicokinetic groups into a high performing team.  At Roche he is responsible for preclinical safety assessment at Roche Pharmaceuticals, Nutley, NJ. where he has oversight of the toxicology, pathology, drug metabolism, bioanalytics, and pharmacokinetics/toxicokinetics groups and is responsible for setting policy and directing strategic planning for non-clinical safety testing.