Amarillo Biosciences Inc. announced that Dr. Stephen T. Chen has been appointed as Chairman of the Board and Chief Executive Officer. Dr. Joseph Cummins will remain as President and become Chief Operating Officer. Dr. Chen has been a director of the company since February 1996. He received a PhD degree in Industrial and Physical Pharmacy from Purdue University in 1977 with an emphasis on drug delivery systems. Dr. Chen has over thirty years of international business experience, including an extensive background in pharmaceutical product acquisition and licensing, development of joint venture agreements, execution of business strategy, and leadership of start-up companies in the pharmaceutical, biotechnology and nutraceutical industries. Dr. Chen has held executive positions in R&D and business development at several major pharmaceutical companies, including Burroughs Wellcome (presently GlaxoSmithKline), Miles Pharmaceuticals (presently Bayer), ICI America (presently AstraZeneca), and Ciba-Geigy (presently Novartis).