Blanchfield joined Lantheus as chief commercial officer in January 2020 and was most recently chief operating officer. As president, he will continue to oversee all aspects of commercial, technical operations, and manufacturing and quality, Lantheus said.

Niedzwiecki joined Lantheus in 2013. In his new role as chief administration officer, Niedzwiecki will oversee legal and intellectual property as well as human resources and corporate communications. He will continue to serve as general counsel and corporate secretary, Lantheus added.