Category: Patent Litigation
Recently, in Amgen Inc. v. Hospira, Inc., the Federal Circuit clarified the limits of the Safe Harbor defense in cases involving patented manufacturing methods.
In a case brought in the District of Delaware, Amgen alleged that Hospira infringed several patent claims over methods of manufacturing erythropoietin (EPO), a biologic drug used to treat anemia. Following a trial, a jury issued a $70 million verdict for Amgen, which was based in part on the jury’s conclusion that fourteen batches of drug substance for Hospira’s EPO biosimilar product were not covered by the Safe Harbor provision of 35 U.S.C. § 271(e)(1). After the district court denied Hospira’s motion for judgment as a matter of law or alternatively for a new trial, Hospira appealed on a number of issues, including the jury instructions and jury findings on its Safe Harbor defense.
As 2019 draws to a close, a handful of actions regarding biologics are pending in the federal courts. The current cases are listed below, in order from most-recently-filed to oldest:
Federal Circuit Walks Back Its “Exceptional” Stance on the Doctrine of Equivalents in the Latest Amgen v. Sandoz Decision
In Amgen’s long-running dispute with biosimilar-maker Sandoz over biosimilar versions of Amgen’s filgrastim (Neupogen®) and pegfilgrastim (Neulasta®) biologics, the Federal Circuit earlier this year affirmed summary judgment of no literal infringement and no infringement under the doctrine of equivalents. Amgen Inc. v. Sandoz Inc., 923 F.3d 1023 (Fed. Cir. May 8, 2019). In so holding, the panel stated that “the doctrine of equivalents applies only in exceptional cases.” Amgen petitioned for rehearing en banc, arguing that the Federal Circuit had overstated the law. According to Amgen’s petition, “[s]uch a rule is contrary to Supreme Court precedent and [Federal Circuit] precedent.” This week, the Federal Circuit course-corrected, granting Amgen’s petition without explanation for the limited purposes of removing the “exceptional” language from its prior decision.
On July 23, 2019, Amgen, maker of the cancer treatment drug Neupogen (filgrastim), filed patent infringement claims in the Southern District of California against Tanvex Biopharma over Tanvex’s proposed filgrastim biosimilar. See Amgen Inc. v. Tanvex BioPharma USA, Inc., 3:19-cv-01374-BEN-MSB. Amgen asserts a patent that claims methods of refolding recombinant proteins used in the manufacture of Neupogen.
Prosecution History Estoppel Bars Amgen’s Doctrine-of-Equivalents Infringement Claim Against Neulasta (Pegfilgrastim) Biosimilar Maker Coherus
Amgen Inc. v. Coherus Biosciences Inc., No. 2018-1993, Slip op. at 6 (Fed. Cir. July 29, 2019) stems from a Biologics Price Competition and Innovation Act action brought by Amgen against Coherus seeking FDA approval to market a biosimilar version of Amgen’s pegfilgrastim product Neulasta.
In Enzo Life Sciences v. Roche Molecular Systems, No. 2017-2498, 2017-2499, 2017-2545, 2017-2546, Slip op. (Fed. Cir. July 5, 2019), the Federal Circuit affirmed summary judgment of invalidity for lack of enablement of Enzo’s two patents relating to non-radioactive labeling of polynucleotides. The decision highlights non-enablement issues that may arise with respect to broad functional claims in an unpredictable field.
On February 6, 2019, the Federal Circuit issued its latest opinion on patentable subject matter under 35 U.S.C. § 101 in Athena Diagnostics, Inc. v. Mayo Collaborative Servs., LLC, No. 2017-2508, slip. Op. (Fed. Cir. Feb. 6, 2019). Judge Lourie wrote for the majority in this split decision, expressing some regret but affirming an order invalidating a diagnostic patent involving proteins. Judge Newman dissented, voicing a concern that § 101 jurisprudence has become counterproductive to the goals of patent law. Though unsurprising, the decision further narrows an already shrinking space for patents to diagnostic methods. It is unclear from this decision what diagnostic methods, if any, are safe from future § 101 challenges.
Federal Circuit Dismisses Momenta IPR Appeal for Lack of Standing and Mootness After Momenta Abandons Orencia® Biosimilar
Last week, the Federal Circuit issued its long-awaited opinion in Momenta Pharmaceuticals, Inc. v. Bristol-Myers Squibb Co., No. 2017-1694, slip op. (Fed. Cir. Feb. 7, 2019). While many had hoped the decision would provide clarity on whether a biosimilar maker who has not yet filed an aBLA has standing to appeal a PTAB decision upholding an innovator patent, the Federal Circuit instead dismissed the appeal for lack of standing and mootness based on post-appeal developments making it clear that Momenta had abandoned its efforts to develop the biosimilar in question. Nevertheless, Momenta is important in that it illustrates the continued risk to biosimilar makers of unappealable IPR decisions when they bring IPRs years before filing an aBLA.
On December 22, 2018, the United States federal government entered a partial shutdown, which now enters its 19th day. If the shutdown continues through the weekend, it will be the longest federal government shutdown in U.S. history. While many federal offices and services are completely closed, agencies that impact biologics—including the FDA, the USPTO, and the Federal Judiciary—remain open in various capacities, at least for now. Nevertheless, if the shutdown continues, the biotech/pharmaceutical industry could begin to feel its effects.
Two cases decided by the Federal Circuit in 2018, Aatrix Software, Inc. v. Green Shades Software, Inc., 882 F.3d 1121, en banc rehearing denied, 890 F.3d 1354 and Berkheimer v. HP Inc., 881 F.3d 1360, en banc rehearing denied, 890 F.3d 1369, address what qualifies as patent-eligible subject matter under 35 U.S.C. § 101 and how courts should resolve that question. These cases expose divisions within the court on § 101 issues, however, and leave uncertainty in their wake. Many stakeholders, including judges, are therefore calling for guidance from the Supreme Court as to how to resolve such issues or seeking the aid of Congress.
Federal Circuit Clarifies Law of Obviousness-Type Double Patenting: Patent Term Extension and Patent Term Due to URAA Are Safe from Gilead v. Natco
In a pair of decisions on Friday, the Federal Circuit clarified the law of obviousness-type double patenting (ODP). In Novartis AG v. Ezra Ventures LLC, the court held that ODP does not invalidate an otherwise valid patent term extension (PTE) granted under 35 U.S.C. § 156 (extending the term of a pharmaceutical patent to compensate for regulatory delays). And in Novartis Pharmaceuticals Corp. v. Breckenridge Pharmaceutical Inc., the court clarified that its holding in Gilead Sciences, Inc. v. Natco Pharma Ltd., 753 F.3d 1208 (Fed. Cir. 2014), i.e., that a later-issuing, earlier-expiring patent can invalidate an earlier-issuing, later-expiring patent for ODP, applies only to post-URAA (Uruguay Round Agreements Act) patents. Under Breckenridge, where a later patent expires earlier only because of URAA’s change in patent term, the post-URAA patent is not an ODP reference against the pre-URAA patent. The two decisions provide certainty for the biopharma industry and put an end to post-Gilead ODP challenges to pre-URAA patents and patents with PTE based on term granted by Congress.
Earlier this month, the President signed into law the Patient Right to Know Drug Prices Act (Public Law 115-263). The Act mainly focuses on eliminating so-called “gag clauses” that prevent pharmacists from telling patients when paying for a drug out of pocket is cheaper than paying through insurance. In addition, the Act amends the Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (Public Law 108-173) to require branded drug companies and biosimilar applicants to disclose settlement agreements relating to the “manufacture, marketing, or sale” of biosimilar products to the Federal Trade Commission (“FTC”) and U.S. Department of Justice (“DOJ”) for evaluation under the antitrust laws. The new legislation brings biosimilar litigation in line with ANDA litigation, for which the same disclosure requirements were already in place.
In Momenta Pharmaceuticals, Inc. v. Bristol-Myers Squibb Co., No. 17-1694 (Fed. Cir. argued Dec. 5, 2017), BMS challenges Momenta’s standing to appeal a PTAB decision upholding the validity of BMS’s patent relating to a formulation of Orencia® (abatacept) in an IPR brought by Momenta before having filed a biosimilar marketing application. The Federal Circuit is expected to decide whether a petitioner must have filed a marketing application in order to have Article III standing to appeal from an unfavorable PTAB decision. As months have passed without a decision, Momenta and BMS have both used the time to further press their case.
Earlier this month, AbbVie filed suit against Sandoz’s proposed biosimilar to AbbVie’s HUMIRA® (adalimumab). Invoking the Biosimilar Price Competition and Innovation Act (“BPCIA”), AbbVie asserts two patents protecting Humira, a fraction of the 84 patents AbbVie wished to litigate. Taking full advantage of the pre-litigation “patent dance,” Sandoz limited the number of patents-in-suit to just two. As this case illustrates, following the patent dance affords biosimilar makers considerable control and power over the scope of biosimilar lawsuits.
The Supreme Court of the US handed patent owners a significant victory in WesternGeco v ION by overturning the Federal Circuit’s bright-line rule prohibiting recovery of lost profits accrued overseas as a result of domestic patent infringement under § 271(f)(2) of the Patent Act.§ 271(f)(2) prohibits supplying components of a patented invention from the US with the intent that they be combined abroad.
To continue reading Irena Royzman and Jordan Engelhardt's article from Intellectual Property Magazine, please click here.
Today FDA approved the first-ever “small interfering RNA” (siRNA) product, marking a significant milestone in the story of RNA interference (RNAi) technology and clearing the way for a new type of therapeutic. Alnylam® secured approval and Orphan Drug Designation for its siRNA product Onpattro (patisiran), a therapy for the rare hereditary disease transthyretin-mediated amyloidosis in adult patients. The disease is caused by mutations in a protein called “transthyretin” which leads to symptoms of neuropathic pain, loss of sensation in the hands and feet, and wheel-chair confinement. In Alnylam’s Phase III clinical trial, Onpattro improved multiple clinical manifestations of the disease and demonstrated safe administration of a siRNA product.
On July 20, 2018, FDA approved Pfizer’s biosimilar of Amgen’s Neupogen® (filgrastim). Pfizer’s product, Nivestym™, is the second biosimilar of Neupogen to be approved after Sandoz’s Zarxio®, the first approved biosimilar in the United States. Pfizer’s Nivestym gained approval for all eligible Neupogen indications.
Amgen has sued Apotex in connection with Apotex’s efforts to market biosimilar versions of Amgen’s cancer drugs Neupogen (filgrastim) and Neulasta (pegfilgrastim). In a complaint filed on August 7 in the Southern District of Florida, Amgen alleges infringement of U.S. Patent No. 9,856,287. This is the third time that Amgen has filed a BPCIA lawsuit against Apotex in connection with its filgrastim and pegfilgrastim biosimilars.
Allergan’s attempt to shield its Restasis patents from inter partes review by assigning the patents to the Saint Regis Mohawk Tribe was rejected last week by a unanimous Federal Circuit panel. The Federal Circuit affirmed the PTAB’s February 2018 decision holding that tribal sovereign immunity does not bar IPRs.
On July 18, FDA released its long-awaited Biosimilars Action Plan (“BAP”). In prepared remarks to the Brookings Institution the same day, FDA Commissioner Scott Gottlieb described the BAP as “enabling a path to competition for biologics from biosimilars” in order to “reduc[e] costs and to facilitat[e] more innovation.” While the BAP is straightforward, the Commissioner’s remarks included unexpected jabs at innovator drug makers for what FDA believes is anticompetitive conduct. The speech was likely driven by the Trump Administration’s American Patients First plan, which sets as a top FDA priority the reduction of prescription drug prices, including by reducing “gaming” of regulatory requirements, but what the speech achieves given the role of FDA remains unclear.
On Friday, June 22, 2018, the Supreme Court issued its decision in WesternGeco LLC v. ION Geophysical Corporation, 585 U.S. ___, Slip. Op. No. 16-1011 (June 22, 2018), reversing the Federal Circuit and holding that WesternGeco’s award for lost foreign profits was a permissible application of the damages provision of the Patent Act, 35 U.S.C. § 284. Justice Thomas wrote the opinion for a seven-justice majority while Justice Gorsuch wrote a dissent joined by Justice Breyer.
Generics and biosimilar makers have increasingly used inter partes reviews, proceedings made possible by the America Invents Act, to challenge patents protecting innovator small-molecule drugs and biologic medicines. Senator Orrin Hatch, co-author of the Hatch-Waxman Act, has introduced an amendment that would require these manufacturers either to take advantage of the abbreviated regulatory approval pathways provided by the Hatch-Waxman Act and BPCIA and challenge innovator patents in district court or to challenge innovator patents in IPRs before the PTAB, but not both. Senator Hatch explains that while he strongly supports IPRs and the America Invents Act and that IPRs are of particular importance to the tech community to fight “patent trolls,” they are also “producing unintended consequences in the Hatch-Waxman context” and “threaten to upend the careful Hatch-Waxman balance by enabling two separate paths to attack a brand patent.” If enacted, generics and biosimilar makers that choose to take advantage of the abbreviated regulatory process will challenge innovator patents in court rather than in IPRs before the PTAB.
As biosimilar litigation between Amgen, the maker of Enbrel® (etanercept), and Sandoz, the maker of biosimilar ErelziTM (etanercept-szzs) heads toward trial before Judge Claire Cecchi in the District of New Jersey, Sandoz is seeking to stave off Amgen’s infringement claims for three of the patents in suit by pointing to its recent amendment to the Erelzi label, which “carves out” certain treatment indications listed on the Enbrel reference label and, Sandoz argues, moots any claim that Erelzi infringes Amgen’s patents covering the use of etanercept to treat those conditions.
Two recent Federal Circuit decisions address when a party has standing to challenge the validity of a patent. Though the cases arose in different contexts, they both center on the question of what it means for a party to be facing an imminent and cognizable injury. In Altaire Pharmaceuticals, Inc. v. Paragon Bioteck, Inc., 17-1487, the Federal Circuit upheld a party’s standing to appeal from a post-grant review where it was at risk of an infringement suit. In AIDS Healthcare Foundation v. Gilead Sciences, Inc. et al., 16-2475, however, the court reached the opposite conclusion and determined that the immediacy requirement to bring a declaratory judgment action was not met for a party that had an interest in purchasing generic drugs, but did not itself produce them.
In a highly anticipated ruling, the Supreme Court upheld the constitutionality of inter partes review proceedings. Justice Thomas, writing for the seven-member majority in Oil States Energy Services, LLC v. Greene’s Energy Group, LLC, held that the Patent Trial and Appeal Board could reconsider and cancel patent claims through inter partes review without violating Article III or the Seventh Amendment of the Constitution.
In WesternGeco v. ION Geophysical Corp., the Supreme Court Weighs the Availability of Foreign Damages for U.S. Patent Infringement
On Monday, April 16, 2018, the Supreme Court heard oral argument in WesternGeco LLC, v. ION Geophysical Corporation, No. 16-1011, a case with broad implications for patent holders that sell products abroad. The case addresses whether lost profits accrued outside of the United States can be recovered for patent infringement occurring domestically. In the decision below, 791 F.3d 1340 (Fed. Cir. 2015), the Federal Circuit adopted a per se bar to recovery of such foreign damages, even when domestic patent infringement is established and proximately caused. Although WesternGeco involves infringement under 35 U.S.C.§ 271(f) – which prohibits the supply of components of a patented invention in the U.S. with the intent that they be combined abroad – in its argument in support of the petitioner, the Solicitor General framed the question more broadly as whether lost profits accrued outside of the United States can be recovered for any domestic act of patent infringement under § 271. Four key takeaways from the oral argument are discussed below.
Last month, Amgen sued Adello for patent infringement under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) in connection with Adello’s proposed biosimilar of Amgen’s Neupogen. Adello elected to bypass the pre-suit procedures of the BPCIA and did not provide any information regarding its biosimilar or how it is manufactured to Amgen. In its lawsuit, Amgen asserts 17 patents against Adello blind. The lawsuit illustrates the consequences of the Supreme Court’s and Federal Circuit’s recent decisions holding that provisions of the BPCIA requiring production of information to the innovator company are not enforceable under federal or state law and that information needed to assess infringement can only be obtained by filing a patent infringement lawsuit.
Win or Go Home? Standing to Appeal PTAB Decisions Upholding Patentability to the Federal Circuit Before Submitting a Biosimilar Marketing Application
Biosimilar developers have been aggressive in filing petitions for inter partes reviews (IPRs) of biologics patents before the Patent Trial and Appeal Board (PTAB), many of them preceding the filing of a marketing application. Such early IPRs are attractive to biosimilar makers, because they provide a chance to challenge innovator patents years before the biosimilar maker files a marketing application with FDA. Since a petitioner need not have Article III case-or-controversy standing to bring an IPR, the remoteness and uncertainty of future infringement in such circumstances does not preclude these early IPRs. Under settled precedent, however, a biosimilar maker must have Article III standing to seek a Federal Circuit appeal if the PTAB issues a final decision upholding the challenged patent. A decision expected from the Federal Circuit this quarter in Momenta Pharmaceuticals, Inc. v. Bristol-Myers Squibb Co., No. 17-1694 (Fed. Cir. argued Dec. 5, 2017) will address how and when a biosimilar maker can establish that standing.
USPTO Adopts Amgen v. Sanofi, Excises “Newly Characterized Antigen” Test from its Written Description Guidance for Antibody Claims
Last month, the USPTO issued a memorandum to its patent examining corps clarifying its guidance concerning the written description requirement for claims drawn to antibodies. In the memorandum, the USPTO adopts the Federal Circuit’s recent decision Amgen v. Sanofi, 872 F.3d 1367 (Fed. Cir. 2017). The Federal Circuit recently denied Amgen’s petition for rehearing and rehearing en banc in Amgen, confirming that Amgen is the law for written description for antibodies.
In a highly anticipated decision on the Saint Regis Mohawk Tribe’s motion to terminate inter partes review proceedings, the Patent Trial and Appeal Board rejected tribal sovereign immunity to IPRs. The PTAB’s decision also raised doubts about the effectiveness of assignments even in cases where the sovereign assignee has immunity but the assignor effectively still owns the patent. The portion of the decision broadly holding that tribal sovereign immunity does not apply to IPRs came as a surprise to some commentators, who observed that the PTAB could have reached the same result on narrower grounds. Following on the heels of the PTAB’s December 2017 University of Minnesota decision holding that a sovereign waives immunity to IPRs when it asserts the patent at issue in district court, Saint Regis Mohawk Tribe deals another blow for patentees seeking to avoid IPRs with sovereign immunity.
In a hard-fought patent battle involving “groundbreaking” work by both parties, Chief Judge Stark of the U.S. District Court for the District of Delaware ruled that plaintiff Idenix’s patent for treating Hepatitis C virus (HCV) infection was invalid as a matter of law for lack of enablement. The decision overturns a $2.5 billion award to Idenix, a Merck subsidiary. The opinion provides valuable insight into the court’s thinking on enablement of method of treatment claims encompassing a large genus of therapeutic agents.
2017 was a record-setting year for biosimilar approvals in the U.S. and Europe. In the U.S., five complex antibody products were approved, two of which are in new therapeutic areas for U.S. biosimilars. In Europe, 16 biosimilars were approved. The number of approved biosimilars in Europe has doubled in the past two years. These approvals have expanded European biosimilars into new therapeutic areas and new classes of biologics. In both markets, biosimilars of pegylated biologic products, such as pegfilgrastim, continue to pose challenges for biosimilar makers.
The Federal Circuit’s recent decision in Amgen v Sandoz provides a measure of clarity for innovator companies and biosimilar makers eyeing patent litigation. While the Supreme Court of the US held in June that initiating the pre-litigation information exchanges set out in the Biologics Price Competition and Innovation Act (BPCIA) – colloquially referred to as the “patent dance” – cannot be enforced under federal law, the Federal Circuit’s decision goes a step further. It holds that initiation of the exchanges cannot be enforced under state law, either. As a result, innovators seeking to compel disclosures from biosimilar makers have no recourse other than to sue for infringement. For a number of reasons, however, the decision might not prove as impactful in the long run as it may seem.
To continue reading Irena Royzman and Michael Fresco's article from Intellectual Property Magazine, please click here.
The Federal Circuit ruled that Amgen’s state law unfair competition claims, which were premised on Sandoz’s failure to follow the patent dance, are preempted by the BPCIA. The decision largely affirms the status quo, making clear that biosimilar applicants may opt out of the patent dance without incurring any consequences besides those specified in the statute.
Inter partes review proceedings for biosimilar products are soaring. Biosimilar makers are taking advantage of IPR proceedings to challenge patents protecting some of the world's most important biologic medicines due to the advantages that these proceedings offer: no standing requirement, no presumption of validity, a lower burden of proof and potentially broader claim construction. More than half of the IPR petitions challenging these patents were filed in fiscal 2017. But the results are mixed, with the Patent Trial and Appeal Board denying a high percentage of the petitions. Many of these patents are ultimately litigated in district court under the U.S. biosimilar statute, the Biologics Price Competition and Innovation Act of 2009 (BPCIA).
On November 13, The Federal Circuit issued a decision affirming a district court judgment that Apotex did not infringe Amgen’s recombinant protein patent in its abbreviated Biologics License Applications referencing Amgen’s Neulasta and Neupogen. Judge James Cohn of the Southern District of Florida ruled in Apotex’s favor in September 2016 after a bench trial. On appeal, the Federal Circuit found sufficient evidence in the record to support the judgment of noninfringement.
The Federal Circuit’s recent decision in Promega Corp. v. Life Technologies Corp. is a cautionary tale that failure to present evidence of damages closely tied to each alternative basis of liability may result in a hollow victory – infringement with no corresponding damages. The Federal Circuit, on remand from the Supreme Court, affirmed the district court’s rulings in a patent suit against Life Technologies that both overturned the jury’s $52 million infringement verdict in favor of Promega, and denied Promega’s motion for a new trial on damages and infringement. The Federal Circuit held that Promega was not entitled to any damages under the narrow “all-or-nothing” damages strategy that Promega had pursued throughout the litigation, and that Promega had waived any alternative damages arguments.
In Sandoz v. Amgen, the Supreme Court interpreted the U.S. biosimilars statute, the Biologics Price Competition and Innovation Act (BPCIA), for the first time. The Court held unanimously that provisions of the BPCIA requiring disclosure allowing innovator companies to assess whether their patents are infringed cannot be enforced under federal law. The ruling also allows biosimilar makers to provide notice of commercial marketing long before FDA approval of the biosimilar. The Court’s decision introduces uncertainty into provisions of the BPCIA that many viewed as necessary and enforceable. But, due to the value of certainty for both biosimilar makers and innovators alike in resolving patent disputes for blockbuster biologics, the impact of the Supreme Court’s decision may ultimately be modest.
To read the article by Irena Royzman and Nathan Monroe-Yavneh in Nature Biotechnology, please click here.
Amgen and Genentech have become embroiled in a novel procedural dispute relating to Mvasi, Amgen’s biosimilar of Genentech’s Avastin (bevacizumab). On October 6, in a complaint filed in the Central District of California, Amgen brought an action seeking a declaratory judgment that 27 of Genentech’s patents are not infringed, invalid, and unenforceable. Amgen’s suit appears to be the first post-approval declaratory judgment action brought by a biosimilar applicant under the young U.S. biosimilar statute, the Biologics Price Competition and Innovation Act (BPCIA). Shortly after Amgen filed its declaratory judgment action, Genentech filed its own suit in the District of Delaware, alleging that Amgen had failed to honor promises made during the pre-suit BPCIA process and infringed Genentech’s patents. Amgen then promptly moved to transfer the Delaware case to California. Genentech then filed another complaint in the District of Delaware, followed by another Amgen motion to transfer.
In July, a split panel of the Federal Circuit upheld the district court’s use of an adverse inference from litigation misconduct to hold a patent unenforceable for inequitable conduct. The Federal Circuit’s decision in the case, Regeneron Pharmaceuticals Inc. v. Merus NV, raises interesting questions about the relationship between attorney misconduct during litigation (which is not supposed to affect the enforceability of a patent) and misconduct during prosecution of the patent (which can). Because the court’s opinion gives no clear answer to these questions, it opens new tactical opportunities for defendants asserting inequitable conduct defenses in patent cases and may incrementally expand the use of a doctrine that the Federal Circuit has famously referred to as a “plague” and repeatedly tried to rein in.
To continue reading Aron Fischer and Rachel Schwartz's article from Law360, please click here.
Amgen filed patent infringement claims against Mylan over Mylan’s proposed Neulasta biosimilar. The suit is the latest in a number of litigations over the blockbuster drug.
Following Biosimilar Trial, Jury Awards Amgen $70 Million for Pfizer’s Pre-Approval Infringement of Now-Expired EPO Patent
In one of the first Biologics Price Competition and Innovation Act (BPCIA) litigations to reach trial, a jury on Friday awarded Amgen $70 million in damages for Pfizer’s infringement of one of Amgen’s expired patents protecting Epogen®. The jury found that Pfizer’s subsidiary Hospira, in manufacturing its proposed biosimilar ahead of FDA approval, was not protected by the statutory safe harbor, 35 U.S.C. § 271(e)(1). This action provides an important lesson in the potential value of expired or soon-to-expire patents in BPCIA litigation. Because a biosimilar maker’s pre-approval activity may not be covered by the statutory safe harbor, patents that are expired at the time of approval may still have been infringed.
On August 2, AbbVie sued Boehringer in the District of Delaware, alleging infringement of multiple patents related to AbbVie’s blockbuster biologic Humira (adalimumab). Though AbbVie has “more than 100 issued United States patents” that protect Humira and says that Boehringer infringes 74 of them, AbbVie explains that it was only able to assert 8 of the patents against Boehringer in its complaint. As AbbVie explains, Boehringer was able to limit the scope of litigation to 8 patents by complying with the procedures of the Biologics Price Competition and Innovation Act of 2009 (“BPCIA”).
Many biosimilar makers have tried and failed to obtain approval for biosimilar versions of Amgen’s Neulasta (pegfilgrastim), a long-acting version of Amgen’s Neupogen (filgrastim). Coherus BioSciences, Inc. is the latest biosimilar maker to encounter such hurdles. FDA denied Coherus’s biosimilar application in June, pushing any approval of the proposed biosimilar back by at least a year. Coherus was forced to lay off a third of its workforce after FDA’s rejection of the application. On Tuesday, it asked a federal court to stay the BPCIA litigation recently brought against it by Amgen. Coherus seeks to stay discovery until resolution of its pending motion to dismiss to allow it to conserve resources while preparing to resubmit its biosimilar application.
Pfizer’s proposed biosimilar of Amgen’s Epogen® and Johnson & Johnson’s Procrit® (epoetin alfa) is poised to be the first erythropoietin (EPO) biosimilar in the U.S. FDA staff recommended approval of Pfizer’s product as a biosimilar for the four indications of Epogen/Procrit. On May 25, 2017, FDA’s advisory committee agreed with that assessment, but FDA did not approve Pfizer’s product following the meeting. Instead, in a first for biosimilar products, FDA issued a complete response letter in June rejecting Pfizer’s EPO biosimilar application for a second time. Pfizer revealed that FDA did not approve the application after the advisory committee meeting due to FDA’s concerns with a manufacturing site for the EPO biosimilar. Pfizer’s product may not be approved, much less launched, this year due to outstanding manufacturing issues.
On Monday, the U.S. Supreme Court issued its first interpretation of the biosimilars statute, the Biologics Price Competition and Innovation Act of 2009. The BPCIA, part of Obamacare, introduced an abbreviated pathway for regulatory approval of biosimilars, allowing biosimilars to piggyback on the regulatory data of innovator biologics for their approval.
Supreme Court Decides Amgen v. Sandoz: Patent Dance Cannot Be Enforced by Federal Injunction, Notice of Commercial Marketing Can Be Given at Any Time
On June 12, 2017, the Supreme Court decided Amgen v. Sandoz, the landmark case about the meaning of the Biologics Price Competition and Innovation Act (BPCIA). First, the Supreme Court held that no federal injunction is available to force biosimilar applicants to participate in the BPCIA’s patent dispute resolution procedures (a/k/a the patent dance); but it remanded to the Federal Circuit to address whether such an injunction is available under state law. Second, the Court held that under the BPCIA, a biosimilar applicant may provide 180-day notice of commercial marketing before the biosimilar product is licensed, meaning that as a practical matter, the 180-day notice period need not affect the timing of the biosimilar product’s launch.
When a small pharmaceutical company discovers a new medicine, it’s not uncommon for the company – which may not itself have the resources or infrastructure to get that medicine to patients – to seek a distribution partner early in development. If the partners make a deal – say the distributor pays for the right to sell the drug (if it gets approved) – and the partners publicize the existence of the deal (but not the full details of the medicine), does the deal bar a patent filed more than one year later? In Helsinn Healthcare S.A v. Teva Pharms. USA, Inc. (May 1, 2017), a unanimous panel of the Federal Circuit ruled that the on-sale bar of the America Invents Act (AIA) precludes such a patent, just as the pre-AIA on-sale bar would. But, in a decision with the potential to chill deals between small bio/pharma companies and potential commercialization partners, the court left unresolved some important questions about the meaning of the AIA’s on-sale bar.
In Life Technologies Corp. v. Promega, the Supreme Court reversed the Federal Circuit’s interpretation of 35 U.S.C. § 271(f)(1), and held that a single component does not constitute a “substantial portion of the components of a patented invention” under the statute. The Court, however, declined to address how many components are needed to trigger liability.
On Wednesday, February 15, 2017, the Patent Trial and Appeal Board (“PTAB”) ruled in favor of the Broad Institute of MIT and Harvard in a closely watched patent fight with UC Berkeley over the breakthrough CRISPR genome-editing technology. The PTAB concluded that the Broad Institute’s later-filed patents for using CRISPR in eukaryotic cells did not interfere with Berkeley’s earlier-filed patent application that disclosed the use of CRISPR technology in vitro and claimed the use of CRISPR technology in general.
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