Sandoz Petitions the Supreme Court for Review of Enbrel® Patent License
The fight over proposed Enbrel® (etanercept) biosimilar Erelzi® continues. Sandoz Inc., Sandoz International GmbH and Sandoz GmbH (“Sandoz”) recently filed a petition for certiorari requesting review of the judgement of the Federal Circuit on whether:
2021 Biosimilar Approval and Litigation Update
The last two years saw the launch of several biosimilars. Looking ahead to 2021, several others may be on the horizon. In 2019-2020, the FDA approved thirteen biosimilars directed to seven reference products. Eight of the approved biosimilars have launched, while five are either embroiled in litigation or awaiting agreed-upon launch dates.
FDA’s Draft Guidance for Industry Seeks to Answer Questions on Biosimilar Interchangeability
FDA has published new draft guidance for industry titled “Biosimilarity and Interchangeability: Additional Draft Q&As on Biosimilar Development and the BPCI Act.”
The draft guidance supplements two prior documents concerning biosimilar interchangeability published in December 2018. This new guidance, in particular, has some useful information for prospective applicants who seek licensure of an “interchangeable” biosimilar product.
Future of Biosimilars at Issue in Latest Supreme Court Affordable Care Act Case
On Tuesday, November 10, 2020, the Supreme Court heard oral argument in California v. Texas, the latest in a long series of challenges to the Affordable Care Act (the “ACA”) brought by Republican Attorneys General and the Trump Administration. The central issue in California v. Texas is whether the ACA’s individual mandate remains constitutional now that it is no longer backed up by a tax penalty. However, the fate of the Biologics Price Competition and Innovation Act (“BPCIA”) also hinges on the Supreme Court’s decision in the case.
Federal Circuit Upholds Enbrel® Patents and Blocks Biosimilar
Earlier this month, in Immunex Corp. v. Sandoz Inc., the Federal Circuit upheld two patents covering Enbrel’s active protein and a process used to manufacture the drug, effectively blocking Sandoz’s Enbrel® biosimilar Erelzi from the U.S. market until 2029 and providing a major victory for Amgen. Enbrel is the brand name for the molecule etanercept, which is used to treat rheumatoid arthritis and several other inflammatory conditions. A blockbuster drug, last year Enbrel generated over $5.2 billion in sales for Amgen, representing 22% of the company’s revenue.
Federal Circuit Holds That Amendments to Biosimilar’s BLA Do Not Trigger Anew BPCIA’s Notice of Commercial Marketing Provision
Under Section 262(l)(8)(A) of the BPCIA, a biosimilar maker must provide notice to the reference product sponsor 180 days before the date of first commercial marketing of the biosimilar. While the Supreme Court has held that such notice can be provided at any time, including before a biosimilar maker’s abbreviated biologics license application (aBLA) has been approved, the statute makes clear that a biosimilar cannot be launched without a notice of commercial marketing. In Genentech, Inc. v. Immunex Rhode Island Corp., No. 2019-2155 (Fed. Cir. July 6, 2020), the Federal Circuit held that supplements to a biosimilar’s aBLA do not trigger a new Section 262(l)(8)(A) requirement.
No Antitrust Violations for Creating and Enforcing Humira Patent Thicket
Last month, Judge Manish Shah of the United States District Court of the Northern District of Illinois dismissed an antitrust complaint brought by indirect purchasers of AbbVie’s blockbuster rheumatoid arthritis drug, Humira®. The suit alleged antitrust violations under a novel “patent thicket” theory, citing § 2 of the Sherman Act, and “pay-for-delay” and “market allocation” theories under § 1 of the Sherman Act. Mem. Op. and Order (Dkt. 170), In Re: Humira (Adalimumab)Antitrust Litigation, No. 19-cv-1873 (N.D. Ill. June 8, 2020).
Q1 2020 Biosimilar IPR Update: Drop in New Filings
At the end of 2017, inter partes review (IPR) proceedings for biosimilar products were on the rise. This was followed by a dip in the number of new filings in FY 2018 and the first half of 2019. Through Q1 2020, this downward trend has continued. Specifically, there has been one new biosimilar IPR filing in the nine-month period from the beginning of Q3 2019 through the end of Q1 2020, leading to a total of 102 total biosimilar patent IPRs. See Fresenius Kabi USA, LLC et al. v. Amgen, Inc. et al., IPR2020-00314 (December 20, 2019).
FDA Finalizes New Definition of Biological Product
Last week, the U.S. Food and Drug Administration (“FDA”) issued a final rule to amend its regulation that defines the term “biological product” in line with the definition set by the Biologics Price Competition and Innovation Act of 2009 (“BPCIA”), as amended by the Further Consolidated Appropriations Act, 2020, enacted on December 20, 2019 (“FCA Act”).
Hospira Seeks En Banc Review of the Federal Circuit’s “Safe Harbor” Ruling in Amgen v. Hospira
In December, in Amgen v. Hospira, 944 F.3d 1327 (Fed. Cir. 2019), a panel of the Federal Circuit issued the first decision applying the statutory Safe Harbor of 35 U.S.C. § 271(e)(1) to BPCIA patent litigation. The Federal Circuit affirmed the jury’s finding that Hospira’s pre-approval manufacture of batches of its biosimilar was an act of infringement of Amgen’s manufacturing patents not protected by the Safe Harbor, even though data from those batches was used to support Hospira’s BLA. The court held that the relevant Safe Harbor inquiry “is not how Hospira used each batch it manufactured, but whether each act of manufacture was for uses reasonably related to submitting information to the FDA.” Hospira has now petitioned for rehearing en banc, arguing that the court’s holding “calls into question the continuing viability of the Safe Harbor, particularly in the context of BPCIA litigation.”
Federal Circuit Clarifies Limits of Safe Harbor Defense in Amgen v. Hospira
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.
Mylan and Biocon Launch Herceptin (trasuzumab) Biosimilar Ogivri™ in U.S.
Last week, Mylan and Biocon announced the U.S. launch of Ogivri™ (trasuzumab-dkst), a biosimilar to Herceptin® (trasuzumab). Genentech’s Herceptin, which was first approved in 1998, is a monoclonal antibody used to treat breast cancer and metastatic stomach cancer.
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.
Amgen Files New Patent Infringement Suit Over Neupogen Biosimilar
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.
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.
Bill Requiring Disclosure of Biosimilar Settlement Agreements to the FTC and DOJ Becomes Law
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.
New Arguments in Momenta On Standing to Appeal IPR Loss Before Filing a Biosimilar Application
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.
Sandoz Uses Patent Dance to Limit Humira® Biosimilar Lawsuit to Two Patents For Now
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.
FDA Approves Pfizer’s Biosimilar of Neupogen® as Amgen and Pfizer Litigate Patent Infringement
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 Brings Third BPCIA Lawsuit Against Apotex After Losing Two Others
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.
FDA Issues Final Guidance on Biosimilar Labeling, Sticking with Generic Model
Earlier this month, FDA issued final guidance on the labeling of biosimilar products. The final guidance continues the approach adopted in FDA’s March 2016 draft guidance. That approach largely treats biosimilars like generic drugs for purposes of labeling, even though biosimilars, unlike generic drugs, are not exact copies of innovator products.
FDA Announces Biosimilars Action Plan with Surprising Rhetoric
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.
FDA Withdraws Draft Guidance on Evaluating Analytical Similarity Following Industry Criticism
Analytical studies to demonstrate that a biosimilar is highly similar to its reference product are central to the biosimilar development and approval process. For this reason, there have been calls from industry for more guidance from FDA on its expectations for evaluating and demonstrating analytical similarity.
Senator Hatch’s New Legislation Would Eliminate IPR Challenges by Generics and Biosimilar Makers
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.
First Decision on Label Carve-Outs for Biosimilars Expected in Enbrel Litigation
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.
FDA Approves Pfizer’s EPO Biosimilar
Yesterday, Pfizer announced that FDA had approved Retacrit® (epoetin alfa-epbx), a biosimilar of Amgen’s Epogen® and Johnson & Johnson’s Procrit® (epoetin alfa). Epoetin alfa (EPO) is a blockbuster treatment for anemia. Retacrit is the first EPO biosimilar approved in the United States. EPO biosimilars have been marketed in the EU for over a decade. Hospira (now a Pfizer company) initially filed an application for approval of its EPO biosimilar in 2014. FDA rejected that application in a complete response later and Hospira later resubmitted it after addressing FDA's concerns. While Retacrit received a favorable FDA advisory committee recommendation in May 2017, it was rejected again in a second complete response letter due to concerns with the proposed manufacturing site for the biosimilar. Nearly a year later, FDA approved Retacrit. Pfizer plans to launch Retacrit this year.
Amgen v. Adello: A Blind Biosimilar Infringement Lawsuit
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.
U.S., European Biosimilar Approval Activity in 2017
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.
Patent dance remains on point
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.
2017 Biosimilar Approvals in Europe
2017 has been a record-setting year for biosimilar approvals in Europe. Although the first biosimilars to the European market were approved in 2006 and 2007, the number of approved biosimilars has doubled in the past two years. These approvals have expanded the market into new therapeutic areas and new classes of biologics.
US Biosimilar Approvals Soar in 2017
Marketing approval for US biosimilars has taken off in 2017. FDA has approved five biosimilar products this year, increasing the number of approved biosimilars from four to nine. In addition to new biosimilars of AbbVie’s Humira and Janssen’s Remicade, FDA has approved the first two biosimilars for the treatment of cancer. All five of the products approved this year are biosimilars of complex blockbuster therapeutic antibodies.
Federal Circuit: BPCIA Preempts State Law In Biosimilar Litigation
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.
Mixed Results as IPR Petitions for Biosimilars Soar
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).
Federal Circuit Affirms Apotex Bench Trial Win in Neulasta Biosimilar Suit
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 Supreme Court’s interpretation of the biosimilars statute and the value of certainty
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 Break New Ground in Avastin Biosimilar Dispute
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.
Amgen Files Infringement Suit Against Mylan Over Neulasta Biosimilar
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.
FDA Approves First Avastin Biosimilar
FDA announced Thursday that it has approved Mvasi (bevacizumab-awwb), Amgen and Allergan’s biosimilar of Genentech’s Avastin (bevacizumab), a monoclonal antibody used in the treatment of a number of different cancers. Mvasi is the seventh biosimilar approved in the United States under the BPCIA and the first biosimilar approved by FDA for cancer treatment. Mvasi was approved for all six indications of Avastin that are not protected by orphan drug exclusivities, with Avastin’s other indications protected by exclusivities expiring in 2021 and 2023.
New Biosimilar Litigation Reflects Benefits of Complying with BPCIA
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”).
Coherus Asks Court to Stay BPCIA Litigation After FDA Rejects its Neulasta Biosimilar
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.
First U.S. Avastin and Herceptin Biosimilars
On Thursday, July 13, 2017, FDA’s Oncological Drugs Advisory Committee (ODAC) unanimously recommended approval of biosimilars of two blockbuster cancer drugs. The first, Amgen and Allergan’s ABP-215, is a proposed biosimilar of Roche/Genentech’s Avastin (bevacizumab), a monoclonal antibody used in the treatment of a number of different cancers. The second, Mylan and Biocon’s MYL-1401O, is a proposed biosimilar of Roche/Genentech’s monoclonal antibody Herceptin (trastuzumab), a drug used in the treatment of HER2+ breast and gastric cancer. If, as expected, the drugs receive final FDA approval, each of these drugs will be the first U.S. biosimilar for its respective reference product.
The Travails of the First U.S. EPO Biosimilar
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.
High Court Interprets The Biosimilars Statute — What Now?
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.
Part III: Stakeholder Comments on FDA’s Interchangeability Guidance for Biosimilars
This post, Part III, of a three-part series (Part I and Part II) on FDA’s interchangeability draft guidance highlights a number of open issues that stakeholders have identified in their comments to FDA. These include the naming and labeling for interchangeable products as well as the relationship between multiple interchangeable products for the same reference product. Biosimilar makers also wanted FDA to make clear that physician-mediated switching is possible for non-interchangeable biosimilar products even if pharmacy-level substitution is not. A number of patient groups, by contrast, expressed concern that payers were in effect mandating pharmacy-level substitution for non-interchangeable biosimilars by taking innovator products off formularies.
Part II: Stakeholder Comments on FDA’s Interchangeability Guidance for Biosimilars
This post, Part II, of a three-part series (Part I) on FDA’s interchangeability draft guidance, highlights the key issues that were raised in the stakeholder comments provided to FDA. FDA received 52 comments in total from a variety of stakeholders, including patients, physicians, insurers, innovators and biosimilar makers. The stakeholders were divided in their views in a number of areas. Patient and physician groups and innovators urged FDA to adopt more stringent requirements for interchangeability assessments. Biosimilar makers and insurers, by contrast, generally pressed for a loosening of the guidance provided by FDA as well as clarification that interchangeable biosimilar products were not more similar to the innovator product than the non-interchangeable ones. The comments also raised a number of issues not addressed by the guidance, which will be discussed in the third post in this series.
Part I: Stakeholder Comments on FDA’s Interchangeability Guidance for Biosimilars
The comment period for FDA’s draft guidance Considerations in Demonstrating Interchangeability With a Reference Product closed on Friday, May 19, 2017. Innovators, biosimilar makers, patients, healthcare providers and other stakeholders have weighed in on the long-awaited guidance. Interchangeable biosimilars, unlike other biosimilars, may be substituted for the innovator product without the intervention of the healthcare provider who prescribed the innovator product. FDA’s guidance for interchangeable biosimilars is thus particularly important to stakeholders. This post, Part I of a three-part series, provides an overview of the key provisions of the guidance. Parts II and III will focus on the comments from stakeholders and open issues.
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