In Re Cyclobenzaprine Hydrochloride Extended-Release Capsule Patent Litigation

CourtCourt of Appeals for the Federal Circuit
DecidedFebruary 14, 2013
Docket12-1280
StatusUnpublished

This text of In Re Cyclobenzaprine Hydrochloride Extended-Release Capsule Patent Litigation (In Re Cyclobenzaprine Hydrochloride Extended-Release Capsule Patent Litigation) is published on Counsel Stack Legal Research, covering Court of Appeals for the Federal Circuit primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
In Re Cyclobenzaprine Hydrochloride Extended-Release Capsule Patent Litigation, (Fed. Cir. 2013).

Opinion

NOTE: This disposition is nonprecedential.

United States Court of Appeals for the Federal Circuit ______________________

IN RE CYCLOBENZAPRINE HYDROCHLORIDE EXTENDED-RELEASE CAPSULE PATENT LITIGATION ---------------------------------------------------------------------------------

EURAND, INC. (now known as Aptalis Pharmatech, Inc.), CEPHALON, INC., AND ANESTA AG, Plaintiffs-Appellees,

v.

IMPAX LABORATORIES, INC., Defendant-Appellant,

AND

MYLAN INC. AND MYLAN PHARMACEUTICALS, INC., Defendants-Appellees,

PAR PHARMACEUTICAL INC. AND TWI PHARMACEUTICALS INC., Defendants. ______________________

2012-1280 ______________________ 2 EURAND, INC. v. IMPAX LABORATORIES, INC.

Appeal from the United States District Court for the District of Delaware (Wilmington) in no. 09-MD-2118, Judge Sue L. Robinson. ______________________

Decided: February 1, 2013 ______________________

JONATHAN E. SINGER, Fish & Richardson P.C., of Min- neapolis, Minnesota, argued for plaintiffs-appellees. With him on the brief were WILLIAM J. MARSDEN, JR., of Wil- mington, Delaware; and CHERYLYN ESOY MIZZO, of Wash- ington, DC; and JOHN R. LANE, of Houston, Texas. Of counsel on the brief was TRYN T. STIMART, Cooley LLP, of Washington, DC.

C. KYLE MUSGROVE, Haynes and Boone, LLP, of Washington, DC, argued for defendant-appellant. With him on the brief was MICHAEL M. SHEN. Of counsel on the brief was DEBRA J. MCCOMAS, of Dallas Texas.

JAMES H. WALLACE, JR., Willey Rein LLP, of Washing- ton, DC, for defendants-appellees. With him on the brief were MARK A. PACELLA, ROBERT J. SCHEFFEL and MATTHEW J. DOWD. ______________________

Before NEWMAN, O'MALLEY, and REYNA, Circuit Judges. O’MALLEY, Circuit Judge. Impax Laboratories, Inc. (“Impax”) appeals from the November 8, 2011 decision of the United States District Court for the District of Delaware explicitly adding Impax to a preliminary injunction originally entered in May 2011. The injunction barred all generic versions of AMRIX® from the market. Because Impax was subject to EURAND, INC. v. IMPAX LABORATORIES, INC. 3 the May 2011 injunction and failed to file a timely appeal, we lack jurisdiction over Impax’s appeal of the district court’s November 8, 2011 order clarifying that injunction. Impax also complains of the district court’s failure to require Cephalon to post a bond in its favor upon entry of the injunction. Because we have no jurisdiction over Impax’s appeal from the injunction which bars its entry into the market for generic AMRIX®, we also have no jurisdiction to assess the niceties thereof. Impax next appeals from the district court’s refusal to modify or discontinue the injunction prospectively, following a motion asking that it do so. While we have jurisdiction over that aspect of Impax’s appeal, we affirm the district court’s conclusion that Impax failed to justify its request for modification. Impax finally appeals from the district court’s March 15, 2012 decision that Impax’s right to enter the generic market for extended-release cycloben- zaprine hydrochloride had not been triggered under the terms of Impax’s settlement agreement with Plaintiffs Aptalis Pharmatech, Inc., Cephalon, Inc. and Anesta AG (collectively “Cephalon”). Because the district court correctly interpreted the agreement, however, we affirm. I. We only recite the facts necessary to address the cur- rent issues on appeal. A more detailed history of the underlying action appears in In re Cyclobenzaprine Hy- drochloride Extended-Release Patent Litig., 676 F.3d 1063 (Fed. Cir. 2012). Cephalon manufactures and sells AMRIX®, an ex- tended-release formulation of cyclobenzaprine hydrochlo- ride. Cephalon is the owner of U.S. Patent Nos. 7,387,793 and 7,544,372 (collectively “patents-in-suit”), that cover the formulation of and method of administering AMRIX®. The United States Food and Drug Administration (“FDA”) approved Cephalon’s New Drug Application (“NDA”) for AMRIX® in 2007. 4 EURAND, INC. v. IMPAX LABORATORIES, INC. Shortly thereafter, Impax, Mylan Inc. and Mylan Pharmaceuticals, Inc. (collectively “Mylan”), and Par Pharmaceutical, Inc. (“Par”), among others, filed Abbrevi- ated New Drug Applications (“ANDAs”) seeking FDA approval to make and sell generic versions of AMRIX®. Mylan, as the first party to file a complete Paragraph IV certification, was granted a 180-day exclusive marketing period for its generic product. See 23 U.S.C. § 355(j)(2)(A)(vii)(IV) (2006). Cephalon sued for patent infringement and proceeded to trial against Mylan, Par, and Impax, with Impax only participating in the validity portions of the trial. 1 On the last day of trial, Cephalon and Impax settled (“Cephalon-Impax Settlement Agree- ment”). Cephalon granted Impax a non-exclusive license to the patents-in-suit as part of the parties’ agreement. Section 3.2 of the Cephalon-Impax Settlement Agreement controls the timing of Impax’s entry date into the generic market. Section 3.2 is entitled “License Effective Date,” and provides five different “triggering events,” upon the earliest of which Impax may enter the generic market. The first, and baseline date, is one year prior to the expiration of the ’793 patent. Another trigger is when and if Cephalon grants a license to, or authorizes, a third party entitled to first-to-file exclusivity to sell a generic product following expiration of the exclusivity period. Impax would also be granted a right to enter the generic market should Cephalon license or authorize a third party, not entitled to first-to-file exclusivity, to sell a

1 The district court precluded Impax from presenting a non-infringement defense because, during the course of discovery, Impax failed to serve non-infringement conten- tions, produce documents, take or attend depositions, identify witnesses, participate in claim construction, or serve expert reports. EURAND, INC. v. IMPAX LABORATORIES, INC. 5 generic product. And, Impax may enter the market on the same date an ANDA filer with first-to-file exclusivity enters prior to that party obtaining a final non-appealable judgment of non-infringement, invalidity, or unenforcea- bility of the patents-in-suit, otherwise known as an “at- risk” launch. Finally, Impax may enter the market if a third party obtains a final, non-appealable judgment of invalidity, unenforceability, or non-infringement of the “Orange Book Patents,” following the expiration of any applicable first-to-file exclusivity period. Upon the occurrence of a triggering event, Impax may choose to market either its own ANDA product, or an authorized generic supplied by Cephalon. Impax and Cephalon, however, also signed an attendant “Transfer Price Agreement” (“TPA”) on the same day as the settle- ment agreement. Impax, via the TPA, essentially surren- dered its right to produce its own ANDA product and concedes that Cephalon will be its sole and exclusive manufacturer of generic AMRIX®, unless Cephalon fails to deliver the product. In other words, for all intents and purposes, Impax agreed not to pursue the sale of its own ANDA product in the near term, absent narrow circum- stances. In return, Cephalon agreed to, and did begin to, supply its generic product to Impax in anticipation of a possible triggering event by which Impax could enter the market with that product. In addition to settling with Impax, Cephalon also made contingency plans to launch its own generic version of AMRIX® should Mylan and the other defendants prevail at trial. As is common industry practice, Cepha- lon partnered with a generic company to gain access to generic distribution channels and marketing expertise.

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