Viking Therapeutics, Inc. has appointed Marianne Mancini as chief operating officer. Ms. Mancini has more than 30 years of experience in the pharmaceutical and biotechnology industry focusing on the management and oversight of clinical trials from early-stage to late-stage drug development and most recently served as the company's senior vice president of clinical operations. Prior to joining Viking in 2015 as vice president of clinical operations, Ms. Mancini was senior director of clinical operations at Ambit Biosciences Corporation, a company focused on the development of oncology therapies for the treatment of acute myeloid leukemia.