Tu SS, Goode R, Feldman WB - JAMA
Almost half of biologic patents have terminal disclaimers, with most issued 12-14 years after FDA approval, coinciding with the expiration of FDA market exclusivity. These patents typically do not disclose anything new and cover follow-on features of the drug, instead contributing to patent thickets that can delay biosimilar competition.
VIEW SOURCE
Costa E, Kesselheim AS - Journal of Law, Medicine, & Ethics
Kirby-Rivera L, Feldman WB, Kim M, Kosmopoulou G, Kesselheim AS, Tu SS - Journal of Law, Medicine, & Ethics
Eisenkraft Klein D, Kesselheim AS - Health Policy