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. 2016 Oct 13;35:91. doi: 10.1186/s40880-016-0151-x

Table 1.

Key oncological biologics whose patents either have expired or will expire soon

Biologic (brand name) Manufacturer Estimated patent expiry (month and year)
United States Europe
Supportive agents
Filgrastim (Neupogen) Amgen/Roche/Jassen Expired Expired
Pegfilgrastim (Neulasta) Amgen Expired Aug 2017
Epoetin alfa (Emprex/Epogen/Procrit) Amgen/Jassen Expired Expired
Darbepoetin alfa (Aranesp) Amgen May 2024 Jul 2016
Monoclonal antibodies
Trastuzumab (Herceptin) Genentech/Roche Jun 2019 Expired
Rituximab (Rituxan/MabThera) Roche Sep 2016 Expired
Cetuximab (Erbitux) Eli Lilly/Bristol-Myers
Squibb/Merck KgaA
Expired Expired
Bevacizumab (Avastin) Genentech/Roche Jul 2019 Jan 2022