Biosimilar Bridging Study Waivers: Public Health Prerogative Or Trade Secret ‘Taking’?

US FDA and PhRMA may be headed for showdown over use of foreign reference product bridging studies; PhRMA says that relying on sponsor’s non-public information to waive bridging studies  would violate firm’s commercial confidential information, while FDA Commissioner Gottlieb sees ‘public health prerogative’ in considering whether data-sharing agreements with foreign regulators could help eliminate need for unnecessary studies.