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Category: BPCIA

Amgen and Hospira Square Off Over BPCIA Private Right of Action After Amgen v. Apotex Ruling

Amgen and Hospira have fired off a dueling letters to the court in their litigation over Amgen's Epogen biosimilar, debating whether the U.S. biosimilar statute, the Biologics Price Competition and Innovation Act of 2009 (BPCIA), contains a private right of action.  The letters come in the wake of the Federal Circuit’s Amgen v. Apotex decision, which held that the BPCIA’s 180-day notice of commercial marketing provision is mandatory and enforceable by an injunction.  

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Federal Circuit Decides Amgen v. Apotex, Holds that 180-Day Notice of Commercial Marketing is Always Mandatory in Biosimilar Litigation

Today, the Federal Circuit decided Amgen v. Apotex, No. 2016-1308 (Fed. Cir. July 5, 2016), its second decision interpreting the U.S. biosimilar statute, the Biologics Price Competition and Innovation of Act of 2009 (BPCIA).  The Federal Circuit affirmed the district court’s preliminary injunction barring Apotex from selling its proposed biosimilar on the U.S. market during the 180-day post-approval notice of commercial marketing period.  Writing for a unanimous panel that also included Judges Wallach and Bryson, Judge Taranto held that “the commercial marketing provision is mandatory and enforceable by injunction even for an applicant in Apotex’s position.”

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Apotex Drops Sham Litigation Counterclaims in Neupogen and Neulasta Biosimilar Litigation

In a consolidated litigation in the Southern District of Florida involving Apotex’s proposed biosimilars of Amgen’s Neupogen, an anti-infection drug for cancer patients, and of Amgen’s Neulasta, a long-acting version of Neupogen, Apotex participated in the pre-suit information exchanges of the BPCIA, agreed with Amgen as to what patents should be asserted in the BPCIA’s immediate litigation phase but then counterclaimed that Amgen engaged in sham litigation by bringing suit on one of the agreed patents.  With trial to begin in July, Apotex recently stipulated to dismissal of its sham litigation counterclaims, leaving for another case the question of whether a biosimilar maker can both agree as to which patents to litigate in the immediate litigation phase and sustain a claim of sham litigation against the innovator for asserting agreed patents.  

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Full Federal Circuit Denies En Banc Review of Jurisdictional Decision with Important Implications for BPCIA Litigation

On June 20, 2016, the full Federal Circuit declined to rehear Acorda Therapeutics Inc. v. Mylan Pharms. Inc., 817 F.3d 755 (Fed. Cir. 2016) en banc. Acorda affirmed two District of Delaware decisions finding specific jurisdiction over Mylan Pharms., an out-of-state ANDA filer, based on its plans to sell its proposed generic drugs in Delaware. After the Supreme Court’s decision in Daimler AG v. Bauman, 134 S.Ct. 746 (2014), Mylan has argued that it could only be sued in its home state of West Virginia in ANDA cases since future sales of its proposed generic drugs could not confer specific jurisdiction in Delaware.  The Federal Circuit disagreed.  Under Acorda, plaintiffs in ANDA cases as well as in cases brought under the Biologics Price Competition and Innovation Act (BPCIA) can bring suit in their forum of choice based on future sales of proposed generic or biosimilar products so long as considerations of fairness, such as efficiency or undue burden, do not render jurisdiction in the forum unreasonable.  

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Amgen Appeals Ruling on Requirement to Produce Manufacturing Information for a Biosimilar Product under Amgen v. Sandoz

Amgen has appealed a partial denial of its motion to compel in Amgen v. Hospira, which sought discovery of the formulation for the cell culture media that Hospira uses to manufacture its proposed biosimilar of Amgen’s Epogen. Judge Andrews of the District of Delaware granted Amgen’s motion to the extent it sought information relevant to infringement of an asserted patent, but did not agree with Amgen’s broader argument that disclosure of manufacturing information was required under the Federal Circuit’s decision in Amgen v. Sandoz, which held that an innovator company can commence suit when a biosimilar maker fails to provide required information under the statutory process set forth in the Biologics Price Competition and Innovation Act of 2009 (BPCIA) and “access the required information through discovery.”  Amgen’s discovery dispute with Hospira represents an important lesson in the aftermath of Amgen v. Sandoz.  Innovator companies that assert only a subset of their manufacturing patents, as Amgen did, may only be able to obtain discovery relevant to those patents.  As a result, innovator companies may choose to assert all of their manufacturing patents in order to obtain manufacturing information that biosimilar makers fail to provide under the BPCIA.

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Supreme Court Asks Solicitor General to Weigh In on Amgen v. Sandoz

Today, the Supreme Court deferred a decision on certiorari in Amgen v. Sandoz, inviting the Solicitor General to file a brief expressing the views of the United States. Sandoz petitioned for review of one aspect of the Federal Circuit’s 2015 decision, that court’s first and so far only interpretation of the Biologics Price Competition and Innovation Act of 2009 (BPCIA), and Amgen filed a conditional cross-petition asking for review of another aspect of the decision if Sandoz’s petition were granted.  The Supreme Court’s order asks the Solicitor General to comment on both petitions.

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Update on Naming Biosimilars

Last year, FDA published a draft guidance recommending that the nonproprietary names of biologics, including biosimilars, should consist of “core names” along with unique suffixes that are “devoid of meaning.” In a recent notice in the Federal Register, FDA stated that it will allow biologics sponsors to submit ten suggested suffixes for their products under FDA’s proposed naming scheme.  This new recommendation represents a change from last year’s guidance, which invited sponsors to submit three suggested suffixes.

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FDA Announces Approval of Second U.S. Biosimilar

On April 5, the FDA announced the approval of Inflectra, Celltrion and Pfizer’s biosimilar of Johnson & Johnson’s Remicade (infliximab).  Inflectra is now the second biosimilar approved for sale in the United States, after Sandoz’s Zarxio. Inflectra’s label and naming reflect the latest FDA guidance.

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Update on Enbrel Biosimilar and Related US Litigation

Amgen’s Enbrel (etanercept), a blockbuster biologic treatment for a number of autoimmune diseases, including rheumatoid arthritis and psoriasis, has been an attractive target for biosimilar makers.  Sandoz, the maker of Zarxio (filgrastim-sndz), the only biosimilar launched in the US to date, is also first in line with an Enbrel biosimilar in the US.  Last October, Sandoz announced that FDA accepted its regulatory application for a proposed Enbrel biosimilar for review.  Sandoz is seeking marketing approval for all of Enbrel’s medical indications.  But Sandoz’s proposed Enbrel biosimilar brought litigation under the US biosimilars statute, the Biologics Price Competition and Innovation Act of 2009 (BPCIA).

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Amgen Opposes Sandoz’s BPCIA Cert Petition and Files Conditional Cross-Petition on Patent Dance

Amgen has fired back in response to Sandoz’s cert petition in Amgen v. Sandoz, arguing that the Supreme Court should not hear the case—but that if it does, it should also review the Federal Circuit’s holding on the Biologics Price Competition and Innovation Act’s (BPCIA’s) “patent dance.”  Though Amgen declined to seek cert on the patent dance issue, which it lost at the Federal Circuit, it has now filed a conditional cross-petition on that issue along with its opposition to Sandoz’s petition for review of the Federal Circuit’s holding on the BPCIA’s notice of commercial marketing.

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Federal Circuit's Jurisdictional Decision for ANDA Cases Has Important Implications for BPCIA Litigation

The Federal Circuit affirmed two decisions by the District of Delaware to assert personal jurisdiction in ANDA cases over West Virginia-based manufacturer Mylan.  Mylan had argued that it could only be sued in West Virginia in ANDA cases post the Supreme Court's decision in Daimler AG v. Bauman, 134 S.Ct. 746 (2014) because such cases are litigated before actual sales of its generic drug product are made in Delaware (and elsewhere).  The Federal Circuit grounded its rejection of Mylan's approach on Mylan's filing of its ANDAs with the clear intent to market its proposed generic drugs in Delaware upon FDA approval, as well as the injury Mylan would cause in Delaware through such sales.  Under the Federal Circuit's decision, plaintiffs in ANDA and BPCIA cases can obtain jurisdiction over defendants in their forum of choice based on defendants' regulatory filings with the intent to market their proposed products so long as consideration of fairness, such as undue burden on defendants, do not render jurisdiction in the chosen forum unreasonable.

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Sandoz Sued for Cutting Short BPCIA “Patent Dance” for Neulasta Biosimilar

In the latest skirmish between Amgen and Sandoz under the U.S. biosimilars statute, the Biologics Price Competition and Innovation Act of 2009 (BPCIA), Amgen has filed a new declaratory judgment claim alleging violations of the BPCIA.  As described in Amgen’s March 4 complaint, after filing an application for a biosimilar version of Amgen’s cancer drug Neulasta, Sandoz cut short the BPCIA patent dance and demanded that Amgen file an immediate patent infringement suit, claiming that Amgen would otherwise lose its rights to seek lost profits and injunctive relief.  Amgen responded with a suit for a declaration that it had no obligation to go forward with the immediate litigation phase of the BPCIA after Sandoz cut off the pre-suit procedures.

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Sandoz Seeks Cert on 180-Day Issue in Amgen v. Sandoz

Sandoz has filed a petition for a writ of certiorari in Amgen v. Sandoz, the first and, to date, only Federal Circuit decision interpreting the Biologics Price Competition and Innovation Act (BPCIA).  Sandoz is challenging the Federal Circuit's ruling that biosimilar applicants must observe a 180-day notice period after their products are approved by the FDA.   

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AbbVie Submits Citizen Petition on Interchangeable Biosimilars

AbbVie, Inc., a biopharmaceutical company, has submitted a citizen petition to the FDA regarding determinations of interchangeability under the BPCIA.  An interchangeable biological product is biosimilar to a reference product and meets additional, heightened standards for interchangeability.  While biosimilars are required to be highly similar to an FDA-approved reference product, an interchangeable biological product is expected to produce the same clinical result as the reference product in any given patient.  A determination of interchangeability is significant because an interchangeable biological product may be substituted for a reference product by a pharmacist without requiring permission from the physician who prescribed the reference product.  While the FDA approved the first biosimilar biological product in early 2015, it has yet to issue a decision that one biological product is “interchangeable” with another.

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The US Biosimilars Pathway: Key Questions

In 2015, FDA issued a number of final guidance documents for biosimilars but many fundamental questions remain unsettled, including the requirements for labeling of biosimilars, interchangeability, and naming.   There is much ahead for the US biosimilars pathway in 2016.

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The US Biosimilar Pathway: What’s Ahead

2015 was a landmark year for biosimilars.  It began with the approval of the first US biosimilar, Sandoz’s Zarxio, in March 2015 under the biosimilars pathway.  Zarxio entered the US market in September.  Many expected the floodgates to open after Zarxio’s approval but Zarxio remains the only approved US biosimilar to this day, although that is expected to change this year.  Seven other biosimilar applications were filed in 2014/2015 and are either being reviewed by FDA or have to be refiled.  Most of these applications are to complex biologics.  2016 should provide significant insights into how FDA determines biosimilarity and extrapolation for these complex products.

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U.S. Biosimilar Litigation So Far

Nearly six years after the U.S. biosimilar statute was passed, the number of reported decisions addressing the statute can still be counted on the fingers of two hands, but this has been enough for some clear patterns to emerge.  Again and again, biosimilar applicants and innovators have taken consistent, but diametrically opposed, positions on fundamental issues concerning the operation of the statute.  As the courts have resolved these disputes, the basic framework for biosimilar patent litigation has taken shape – at least until the next generation of biosimilar applications raises new issues.

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Amgen Declines to Seek Cert in Amgen v. Sandoz

Amgen has decided not to seek Supreme Court review of the Federal Circuit’s Amgen v. Sandoz decision, as the January 14, 2016 deadline to file has now passed without Amgen petitioning for certiorari.  In Amgen, the Federal Circuit held that the BPCIA’s “patent dance” patent dispute resolution procedures are essentially optional.  With the Federal Circuit having already denied en banc review, Amgen’s decision not to seek cert appears to mean that the patent dance is now optional as a matter of settled law.  There is, however, one caveat: if Sandoz seeks cert and the Court accepts, Amgen could file a cross-motion on the patent dance issue.

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The Federal Circuit Will Hear Apotex’s Appeal from a Preliminary Injunction Under the BPCIA in Early 2016

In early 2016, the Federal Circuit will hear Apotex’s appeal from a preliminary injunction barring Apotex from selling its proposed Neulasta biosimilar for 180 days after FDA approval.  Briefing will be complete on February 12, 2016, and the Federal Circuit agreed to place the case on the oral argument calendar soon thereafter.  Apotex had asked for a more expedited schedule but was not able to provide any specific evidence of when its proposed biosimilar product will be approved.

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Florida Federal Court Enjoins Apotex from Selling Neulasta Biosimilar for 180 Days After Approval

On December 9, a federal district court in Florida issued a preliminary injunction prohibiting Apotex from selling a proposed biosimilar version of Amgen’s cancer drug Neulasta for 180 days after the biosimilar is approved.  In the decision, the district court resolved in Amgen’s favor a dispute over the meaning of the Federal Circuit’s recent decision in Amgen v. Sandoz, the first and to date the only appellate decision addressing the Biologics Price Competition and Innovation Act of 2009 (BPCIA).

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Ten Years of Biosimilars in Europe

This fall marks the tenth anniversary of the effective date of the European Medicines Agency's Guideline on Similar Biological Medicinal Products. Over the past ten years, the EMA has approved 19 biosimilars corresponding to 6 different reference drugs, under the Guideline, and a biosimilar of a seventh is nearing final approval.  Since the EU system served as the model, in many respects, for the biosimilar approval process in the U.S. and other developed countries, the European experience sheds light on what we can expect in the development and commercializations of biosimilars in the U.S. in the next several years.

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Enbrel Biosimilar in Europe and US

On November 19, 2015, the European Medicines Agency’s (EMA) Committee for Medicinal Products for Human Use (CHMP) gave a positive opinion, recommending marketing authorization of Samsung Bioepis’s Benepali, the first biosimilar of Enbrel (etanercept), in Europe.  Enbrel is a blockbuster treatment for rheumatoid arthritis and a number of other autoimmune conditions associated with elevated levels of tumor necrosis factor alpha (TNF-alpha), a protein that plays an important role in promoting inflammation.  The CHMP recommended approval of Benepali for these conditions.  In the US, FDA recently accepted Sandoz’s regulatory application for its proposed biosimilar of Enbrel for review.  Sandoz is seeking approval for all of Enbrel’s indications.  FDA’s review of Sandoz’s proposed biosimilar will provide important information on the requirements for biosimilarity and extrapolation for complex biologic products.

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Stakeholders Say Biosimilars Names Should Be Meaningful and Memorable

FDA has received comments from more than 170 groups on its proposal for naming biosimilars.  Biosimilar makers, insurers and pharmacies largely oppose distinct nonproprietary names (also known as proper names) for biosimilars. By contrast, innovators (including those that develop biosimilars), healthcare providers and patient advocacy groups view them as critical to ensuring patient safety.  However, most stakeholders in both camps urged FDA to use meaningful suffixes to distinguish biosimilars from originator products rather than suffixes “devoid of meaning.”  FDA proposed to add meaningless suffixes to the nonproprietary names of originator products to address concerns of biosimilar makers that distinct names would discourage adoption of biosimilar products.  But biosimilar makers expressed concern that such meaningless suffixes will lead to a variety of errors and ultimately endanger public safety.  FDA may now revisit its proposal given the largely uniform preference of innovators and biosimilar makers alike for meaningful and memorable nonproprietary names, such as those that identify the manufacturer of the biologic.  

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Naming of Interchangeable and Biosimilar Biological Products Likely to Be Same

In its draft guidance, FDA proposed distinguishable nonproprietary names for biosimilars to promote the safety of patients receiving biologic medicines and minimize inadvertent substitution of biologics that have not been determined to be interchangeable.  FDA did not make a proposal for naming interchangeable biological products.  Instead, FDA requested comments on how to name such products in addition to seeking comments on its approach to naming biosimilars.  Stakeholders’ comments are now in.  Innovator companies (including those that also develop biosimilars), healthcare providers and patient advocacy groups favor distinguishable nonproprietary names for biosimilars.  Biosimilar makers, insurers, pharmacies, and the FTC, by contrast, largely fall into a different camp; they argue that distinct names are unnecessary for monitoring biosimilars and will likely bias providers against prescribing them.  Notably, the two camps came together on the naming of interchangeable products.  Since interchangeable products will likely first be approved as biosimilars, both camps advocated keeping the initial biosimilar name rather than changing it after approval as an interchangeable product.  As a result of this unified view, FDA is likely to expand the naming approach it ultimately adopts for biosimilars to interchangeable products.  

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Amgen Uses Agreement to Litigate Patents Under the BPCIA to Rebuff Sham Litigation Claims

Last month, in a case under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) involving Apotex’s proposed biosimilar of Amgen’s Neulasta (pegfilgrastim), Apotex accused Amgen of sham litigation for bringing a patent infringement claim on a that the parties agreed to litigate during the immediate litigation phase of the BPCIA.  In its Answer to Apotex’s Counterclaims, Amgen pointed out that Apotex had agreed to include the patent in the BPCIA infringement action, despite having a statutory option to disagree.

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FDA Rejects Hospira’s EPO Biosimilar Application

After the FDA approved the first U.S. biosimilar, Sandoz’s Zarxio (filgrastim-sndz), earlier this year, many predicted that the floodgates would open for biosimilar products.  That has not been the case.  No other U.S. biosimilar product has been approved.  And, as FDA’s recent rejection of Hospira’s  EPO biosimilar application suggests, Zarxio’s approval may ultimately provide little guidance for more complex products.

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Final Text of Trans-Pacific Partnership Released

At long last, the final text of the Trans-Pacific Partnership, a free trade agreement among a dozen Pacific Rim nations, has now been made available to the public.  The chapter on intellectual property, however, does not appear to have any material changes relating to exclusivity for new biologics from the leaked draft released by WikiLeaks last month.  Just as the provisions in the leaked draft did, Articles 18.50 and 18.52 give countries a choice between, on the one hand, at least eight years of exclusivity or, on the other hand, at least five years of exclusivity plus unspecified “other measures” and protection through “market circumstances.”  Additionally, the agreement seems to provide for only market exclusivity, not data exclusivity.  The TPP bars biosimilar applicants from entering the market during the exclusivity period, but does not appear to prevent them from accessing innovators’ regulatory data.

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Apotex Follows the BPCIA “Patent Dance” Again

The first biosimilar makers to file regulatory applications with FDA attempted to bypass all or a subset of the patent litigation provisions of the Biologics Price Competition and Innovation Act of 2009 (BPCIA). Apotex, the third biosimilar maker to file an application for approval of a biosimilar product with FDA, chose a different course. Apotex participated in and completed the BPCIA’s pre-suit information exchanges (also known as the “patent dance”) for its proposed biosimilar of Amgen’s Neulasta (pegfilgrastim). As Amgen’s recent lawsuit shows, Apotex followed the patent dance again for its proposed biosimilar of Amgen’s Neupogen (filgrastim).    

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TPP Biologics Exclusivity Period Maintains The Status Quo

After half a decade of negotiations, the Trans-Pacific Partnership seems to do little more than maintain the status quo for biologics.  A leaked draft of the agreement appears to require member states to provide between five and eight years of exclusivity for new biologics. But almost all TPP signatories provide that duration under current law, and some governments have already said that the pact will not require them to change their laws. The United States will be able to maintain its current twelve years of protection. Additionally, the agreement appears to provide only market exclusivity, which prevents biosimilars from being sold, and not data exclusivity, which prevents biosimilar makers from using innovators’ regulatory data. Because the TPP largely reflects existing exclusivity periods for biologics, many view it as a missed opportunity for incentivizing global investment in new biologics.

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Federal Circuit Declines to Rehear Amgen v. Sandoz En Banc

This morning, the full Federal Circuit declined to rehear en banc Amgen v. Sandoz, the first appellate decision interpreting the Biologics Price Competition and Innovation Act of 2009 (BPCIA).  The decision to deny en banc review comes as something of a surprise, as the panel decision was fractured, and neither party disputed that it raised important issues of first impression.  Indeed, both parties sought en banc review, albeit on different issues.  In a per curiam order issued this morning, the court denied both petitions.  Unless the Supreme Court (or a later en banc court) intervenes, the panel’s decision will stand as the Federal Circuit’s authoritative statement on the issues presented.

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Hospira Moves to Dismiss Amgen’s BPCIA Claims in Epogen Biosimilars Suit

Last month, Amgen sued Hospira in Delaware under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) over Hospira’s proposed biosimilar version of Amgen’s Epogen (epoetin alfa).  Amgen brought, among others, two BPCIA-specific claims under 42 U.S.C. § 262(l)(2)(A) (relating to Hospira’s alleged failure to provide the required manufacturing information) and 42 U.S.C. § 262(l)(8)(A) (relating to Hospira’s allegedly ineffective 180-day notice of commercial marketing).  On October 13, Hospira moved to dismiss these claims, arguing that Congress did not create a private right of action to enforce the BPCIA.  The issues raised in Hospira’s motion to dismiss are currently before the Federal Circuit in Amgen’s and Sandoz’s petitions for rehearing en banc.

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Trans-Pacific Partnership: Compromise on Biologics Exclusivity Unclear

A final agreement has been reached on the Trans-Pacific Partnership that could provide for as little as five years of exclusivity for biologics.  The final text of the agreement is not yet officially available and its exact contours are unclear, but reports indicate that it includes a complicated compromise providing for between five and eight years of exclusivity.  This represents a setback for the United States, which sought twelve years of exclusivity throughout the negotiations.  Industry groups have also expressed disappointment.

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Apotex Accuses Amgen of Sham BPCIA Litigation

Amgen recently sued Apotex under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) over Apotex’s proposed biosimilar of Amgen’s Neulasta (pegfilgrastim), a long-lasting version of Neupogen.  This is the first BPCIA suit to reach the courts after completion of the BPCIA’s pre-suit information exchange, the so-called patent dance.  On October 5, 2015, Apotex filed its Answer with Counterclaims.  Despite agreeing on which patents should be the subject of immediate patent infringement litigation under the BPCIA, Apotex now alleges that Amgen’s suit on one of those patents is sham litigation in violation of the Sherman Act.

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FDA Accepts for Review Sandoz’s Application for a Biosimilar of Amgen’s Enbrel

Sandoz Inc. announced on October 2, 2015 that FDA accepted its regulatory application for a proposed biosimilar of Amgen Inc.’s biologic arthritis drug Enbrel for review.  The acceptance comes years after Sandoz attempted to bypass the litigation provisions of the Biologics Price Competition and Innovation Act of 2009 (BPCIA).  It remains to be seen whether Sandoz now will follow the BPCIA and provide its regulatory application and other manufacturing information to Amgen since the Federal Circuit has recently held that doing so is optional in Amgen v. Sandoz, another case involving the same parties and the Federal Circuit’s first decision to interpret the BPCIA.  Amgen is currently seeking en banc review of this ruling.

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Update on FDA’s Approach to Labeling Biosimilars Like Generics

The FDA approved label for the first U.S. biosimilar, Sandoz’s Zarxio, has raised concerns.  Zarxio was launched on September 3, 2015 with a label that does not state that the product was approved as a biosimilar to Amgen’s Neupogen and that it has not been determined to be interchangeable to Neupogen.  Instead, Zarxio’s label is nearly identical to that of Amgen’s Neupogen and does not identify the information provided by Sandoz to FDA to obtain Zarxio’s approval, including information on immunogenicity specific to Zarxio. AbbVie has supplemented its citizen petition urging FDA not to allow biosimilars to be labeled like generic drugs since biosimilars, unlike generic drugs, are not identical to the originator product and requesting distinct labeling for biosimilars.  In briefing U.S. senators on September 17, FDA promised to issue guidance on labeling of biosimilars.  

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Update on Personal Jurisdiction for BPCIA Litigants after the Supreme Court’s decision in Daimler

Defendants in Hatch-Waxman cases continue to contest personal jurisdiction outside of their "home" state, in reliance on the Supreme Court's decision in Daimler AG v. Bauman.  Most district courts have rejected such arguments, and found that jurisdiction is proper in the patent owner's preferred forum based on consent-by-registration jurisdiction or specific jurisdiction. Both theories of personal jurisdiction are on appeal before the Federal Circuit, and oral argument is likely to occur early in 2016. The lessons learned in the Hatch-Waxman context will provide guidance for litigation under the BPCIA. 

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Amgen Sues Hospira in Fourth Lawsuit Under the BPCIA

On September 18, 2015, Amgen sued Hospira in a fourth lawsuit under the Biologics Price Competition and Innovation Act of 2009 (BPCIA).  The lawsuit concerns Hospira’s proposed biosimilar of Amgen’s Epogen (epoetin alfa).  Amgen filed the case in Delaware and it has been assigned to Judge Andrews.  In addition to its claims for patent infringement, Amgen sued Hospira for failing to comply with the patent litigation provisions of the BPCIA.  Hospira’s proposed biosimilar has not been licensed by FDA.  FDA also has not announced plans for an advisory committee meeting for Hospira’s product.  

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FDA’s Proposal for Naming Biosimilars Pleases Some, Disappoints Others

The FDA has issued a long-awaited draft guidance document and proposed rule on the nonproprietary names for biosimilar medicines.  FDA proposes to give biosimilars a “core name” shared with all related biological products and a four-letter suffix, unique to each product.  The four-letter suffix, unlike the placeholder name for the first US biosimilar, Sandoz’s Zarxio (filgrastim-sndz), does not identify the product’s manufacturer.  Instead, it is a random collection of four letters, “devoid of meaning.”  Patient groups and physicians have applauded FDA’s use of unique suffixes to differentiate biological products but innovator companies prefer meaningful suffixes, such as the one for Zarxio, and biosimilar manufacturers argue for no distinguishing names at all.  

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Apotex Follows the Pre-Suit Information Exchange Provisions of the BPCIA

In the first skirmishes between biosimilar makers and innovator companies, biosimilar makers attempted to bypass the litigation provisions of the Biologics Price Competition and Innovation Act of 2009 (BPCIA) through the filing of declaratory judgment actions, or by not participating in all or a subset of the BPCIA’s pre-suit information exchanges (also known as the “patent dance”). Apotex, the third biosimilar maker to file an application for approval of a biosimilar product with FDA, chose a different path. As Amgen’s recent lawsuit against Apotex reveals, Apotex is the first biosimilar applicant to participate in and complete the carefully orchestrated pre-suit information exchanges of the BPCIA.

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The United States’ First-Ever Biosimilar Reaches the Market

Today, Sandoz (a Novartis subsidiary) launched the first biosimilar approved under the BPCIA: the cancer drug Zarxio (filgrastim-sndz), which is a biosimilar version of Amgen’s Neupogen.  The launch follows the Federal Circuit’s decision enjoining Sandoz from launching Zarxio for 180 days and the court’s recent denial of Amgen’s emergency motion to extend the injunction pending Amgen’s and Sandoz’s cross-petitions for rehearing en banc.  

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Biosimilar Makers’ IPR Strategy Yields Mixed Results

A number of biosimilar makers have turned  to inter partes review (IPR) proceedings to challenge innovator patents prior to submitting their biosimilar applications to FDA.  IPRs have been attractive to biosimilar makers because in addition to offering procedural and substantive advantages for challenging patents they do not require the filing of a biosimilar application.  As a result, they make it possible for biosimilar makers to obtain patent certainty at a time when litigation under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) is premature and, depending on the results of the IPRs, may be avoided entirely.  The first such IPRs, however, are yielding mixed results, leaving potential patent disputes for later BPCIA litigation.  

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Both Parties Seek En Banc Intervention in Amgen v. Sandoz

Last month, a divided panel of the Federal Circuit issued a split decision in Amgen v. Sandoz.  Amgen is the court’s first decision interpreting the patent dispute resolution provisions of the Biologics Price Competition and Innovation Act (BPCIA).  But if the parties have their way, the panel decision will not be the Federal Circuit’s last word on the issues in dispute – and the court’s next intervention may come sooner rather than later.  Last week, both parties petitioned for en banc rehearing of the panel’s decision.  And on Wednesday, Amgen filed an emergency motion for an injunction pending en banc consideration and review, asking the full court to make a preliminary assessment of the issues before September 2, when the injunction issued by the original panel expires.

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First Federal Register Notice of BPCIA Suit

Today, FDA published notice of Janssen’s lawsuit against Celltrion and Hospira on March 6, 2015 under the Biologics Price Competition and Innovation Act of 2009 (BPCIA) in the Federal Register.  Although Janssen’s lawsuit is not the first action under the BPCIA, today marks the first time the FDA published notice of any BPCIA lawsuit.

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