X4 Pharmaceuticals, Inc. announced that Christophe Arbet-Engels, MD, PhD, will be joining the company as its new Chief Medical Officer, bringing more than 25 years' experience in strategic global drug development across a wide range of therapeutic areas including rare and orphan diseases. Dr. Arbet-Engels previously served as Chief Medical Officer at several life science companies, including Neurogastrx, Millendo Therapeutics, and Poxel Pharmaceuticals, where he provided research and development leadership, advancing multiple candidates from pre-clinical through to late-stage clinical trials. Prior to these roles, he held a variety of senior medical and clinical positions at Biogen, Boehringer-Ingelheim Pharmaceuticals, Hoffmann-La Roche, Merck Research Laboratories, Aventis Pharmaceuticals, and Ligand Pharmaceuticals, where he led clinical development and registration, launch and lifecycle management efforts for several new medicines, including blockbuster therapies such as LANTUS and JARDIANCE.

Dr. Arbet-Engels has also served in educational roles at The Salk Institute for Biological Studies, University of Paris VI, and the Assistance Publique, Hospitals of Paris, and currently serves as a Member of the Board of Tutors in Biochemical Sciences at Harvard University. He received his MD and PhD in internal medicine/endocrinology-metabolism from the University of Paris, France, and completed his MBA at Rutgers University.