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Celltrion Files IPR on Regeneron’s EYLEA® Patent

On January 15, 2025, Celltrion filed IPR2025-00456 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”), challenging claims 1-17, 19-42, 44-50 as anticipated and claims 1-50 as obvious....more

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

Pegfilgrastim 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

Spotlight On: Enbrel® (etanercept) / Erelzi® (etanercept-szzs) / Eticovo® (etanercept-ykro) - January 2025

Etanercept 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

Spotlight On: Actemra® (tocilizumab) / Tofidence™ (tocilizumab-bavi) / Tyenne® (tocilizumab-aazg) - January 2025

Tocilizumab Challenged Claim Types in IPRs: Claims are counted in each IPR, so claims from the same patent challenged in multiple IPRs are counted more than once. Within each IPR, claims are counted only once, whether they...more

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

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

Spotlight On: Lantus® / Lantus® SoloSTAR® (insulin glargine recombinant) / Basaglar® (insulin glargine) / Semglee® (insulin...

Insulin Glargine 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

PTAB Grants Institution of Eight IPRs challenging The Johns Hopkins University Pembrolizumab Patents

Earlier this year, Merck Sharp & Dohme, LLC (“Merck”) requested inter partes review (“IPR”) of a number of patents owned by the Johns Hopkins University (“JHU”). ...more

PTAB Issues Final Written Decision Invalidating Regeneron’s EYLEA® Patent (IPR2023-00442)

On June 14, 2024, the PTAB issued a Final Written Decision (FWD) in Samsung Bioepis’s IPR2023-00442 (“the -00442 IPR) determining that the challenged claims of Regeneron’s U.S. Patent No. 10,130,681 (the ’681 patent) that...more

PTAB Grants Institution of IPR Challenging The Johns Hopkins University Pembrolizumab Patent

On June 13, 2024, the PTAB granted institution of IPR2024-00240 that Merck Sharp & Dohme, LLC (“Merck”) filed in November 2023 challenging claims 1-42 of The Johns Hopkins University’s (“JHU”) U.S. Patent No. 11,591,393 (“the...more

PTAB Issues Final Written Decisions On Zynteglo® Gene Therapy Patents

On April 22, 2024, the PTAB issued Final Written Decisions in two related inter partes reviews, IPR2023-00070 and IPR2023-00074, upholding two patents that cover Zynteglo® (betibeglogene autotemcel), a gene therapy treatment...more

PTAB Proposes Rules Governing Director Review of PTAB Decisions

On April 16, 2024, the PTAB proposed new rules (“proposed rules”) governing the Director Review process, which would remain consistent with the Interim review process currently in place, and codify those procedures....more

PTAB Denies Seagen’s Request for Director Review of Unpatentability Decision in Adcetris® Patent PGR

On March 27, 2024, the PTAB summarily denied Seagen’s February 14, 2024 request for Director Review of the PTAB’s January 16, 2024 Final Written Decision (“FWD”) in PGR2021-00030 related to Adcetris® (brentuximab vedotin)....more

EYLEA® IPR Appeals Filed

On March 13, 2024, Regeneron appealed the PTAB Board’s (“the Board”) recent Final Written Decisions (“FWDs”) that found claims of two Regeneron patents related to EYLEA® (aflibercept) unpatentable....more

Stelara® Biosimilar Updates: Settlement of IPR and FDA Review of Proposed Biosimilar

On March 4, 2024, the PTAB granted Biocon and Janssen’s joint motion to terminate IPR2023-01444 due to a settlement reached prior to an institution decision. The parties announced in a press release that their settlement and...more

Seagen Requests Director Review of Unpatentability Decision in Adcetris® Patent PGR

On February 14, 2024, Seagen requested director review of the PTAB’s January 16th Final Written Decision (“FWD”) in PGR2021-00030 finding antibody-drug conjugate claims in U.S. Patent No. 10,808,039 (the “’039 patent”)...more

Chugai, Genentech, and Hoffmann-La Roche Dismiss Appeals of Actemra® Patent IPR Final Written Decisions

On February 12, 2024, Chugai, Genentech, and Hoffmann-La Roche (Roche) filed a motion to voluntarily dismiss CAFC Appeals 24-1111 and 24-1115, appealing the Final Written Decisions (FWDs) in IPR2022-00578 and IPR2022-00579,...more

The PTAB Finds Claims of Two EYLEA® Patents Unpatentable and Regeneron Files its Sixth Complaint Against a Proposed EYLEA®...

The new year has brought a wave of activity for EYLEA® (aflibercept) biosimilars. Following up on our previous report (EYLEA® (aflibercept) and Soliris® (eculizumab) IPR and BPCIA Litigation Updates, December 31, 2023), in...more

PTAB Issues Final Written Decision Finding Seagen’s Adcetris® Patent Claims Unpatentable

On January 16, 2024, the PTAB issued a Final Written Decision in a post-grant review (“PGR”) of claims in U.S. Patent No. 10,808,039 (the “’039 patent”) owned by Seagen Inc. (“Seagen”). PGR2021-00030 was filed by Daiichi...more

EYLEA® (aflibercept) and Soliris® (eculizumab) IPR Updates

On December 8, 2023, the PTAB instituted three of Samsung Bioepis’s pending IPRs against Alexion’s Soliris® (eculizumab), IPR2023-00933, IPR2023-00998, and IPR2023-00999. The challenged patents include composition of matter,...more

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