Seres Therapeutics, Inc. announced the appointment of Kevin Horgan, M.D., as Executive Vice President and Chief Medical Officer. Dr. Horgan will lead Seres’ clinical development, clinical operations, regulatory affairs, and medical affairs functions. Dr. Horgan will succeed Seres’ outgoing Chief Medical Officer, Michele Trucksis, Ph.D., M.D., who will continue to provide consulting services to the company. Over a three-decade academic and industry career, Dr. Horgan has contributed to the development and approval of multiple therapeutics across immunology and oncology indications. Most recently, Dr. Horgan was Vice President of Clinical Development at AstraZeneca where he led the development of combination immune-oncology programs. Dr. Horgan earlier co-founded Tucana Health. Previously, Dr. Horgan held Chief Medical Officer roles at Soligenix and Coronado. Prior to those roles, he was Vice President of Clinical Immunology at Centocor during the development and approval of Remicade, Stelara and Simponi, approved for inflammatory bowel disease indications. Dr. Horgan began his industry career at Merck, following positions in academic medicine at the University of California, Los Angeles and immunologic training at the National Cancer Institute.