News & Analysis as of

Biosimilars Pfizer Inter Partes Review (IPR) Proceeding

Venable LLP

Spotlight On: Rituxan® (rituximab) / Truxima® (rituximab-abbs) / Ruxience® (rituximab-pvvr) / Riabni™ (rituximab-arrx) - August...

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Rituximab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Herceptin® (trastuzumab) / Ogivri® (trastuzumab-dkst) / Herzuma® (trastuzumab-pkrb) / Ontruzant® (trastuzumab-dttb)...

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Trastuzumab Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Herbert Smith Freehills Kramer

Biosimilar Litigation Trends and Lessons Learned in 2019

It has been nearly 10 years since the U.S. Biosimilars Pathway (the Biologics Price Competition and Innovation Act) was enacted. The first biosimilar product in U.S. history was approved and launched in 2015. Ten biosimilars...more

Goodwin

Biosimilar Appellate Roundup: Upcoming Oral Arguments and Decisions

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On December 6, 2019, the Federal Circuit will hear oral argument in a rituximab-related appeal by Biogen.  The appeal stems from a final written decision of the Patent Trial and Appeal Board (PTAB) in an inter partes review...more

Goodwin

Biosimilar IPR Appeal Updates

Goodwin on

Following the Celltrion and Pfizer settlements of the trastuzumab litigation, the Federal Circuit granted the request of the Director of the PTO to intervene under 35 U.S.C. § 143 (i.e., defend a PTAB decision when a...more

Goodwin

Year in Review: Top Five Biosimilar Legal Developments of 2018

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Here are our picks for the top five most significant legal developments of 2018 that may impact the biosimilar industry: 1. New Law Requiring FTC/DOJ Review Of Biosimilar Patent Litigation Settlements - With the...more

Goodwin

IPR Updates

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Below are recent updates in biosimilar-related IPR proceedings: GENERAL BIOLOGICS PATENTS - On December 1, 2017, the Board granted institution of four IPRs on Celltrion’s petitions (IPR2017-01373 and IPR2017-01374) and...more

Fish & Richardson

The Herceptin® Battle Moves into the District Court

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On November 17, 2017, Genentech filed suit against Pfizer in the District of Delaware, alleging that Pfizer’s biosimilar of Herceptin® infringes forty Genentech patents covering Herceptin® and its methods of use and...more

Jones Day

Genentech to Defend 3 of 4 Herceptin® Patents Challenged by Hospira

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At least 19 IPRs have been filed against seven of Genentech’s patents covering its blockbuster antibody drug Herceptin® (trastuzumab). On July 27, 2017, the PTAB instituted IPRs filed by Hospira, Inc. (a subsidiary of Pfizer)...more

Fish & Richardson

Pfizer Takes Aim at Herceptin® Patent at the PTAB

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Pfizer has shown its muscle in the biosimilars field, purchasing Hospira in 2015 and launching the second biosimilar on the U.S. market, Inflectra® (infliximab), a biosimilar of Johnson & Johnson’s Remicade®. Pfizer is now...more

Knobbe Martens

PTAB Institutes Two IPRs in Hospira v. Genentech Avastin Dispute

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Bevacizumab (Avastin®) is the subject of the widely watched “patent dance” dispute between Genentech and Amgen regarding Amgen’s proposed biosimilar. Hospira, however, (now owned by Pfizer) has chosen a different path in...more

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