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Takeda Pharmaceuticals Usa, Inc. v. Par Pharmaceutical Companies, Inc.

United States District Court, D. Delaware

September 4, 2014

TAKEDA PHARMACEUTICALS U.S.A., INC., Plaintiff,
v.
PAR PHARMACEUTICAL COMPANIES, INC. and PAR PHARMACEUTICAL, INC., Defendants. TAKEDA PHARMACEUTICALS U.S.A., INC., Plaintiff,
v.
AMNEAL PHARMACEUTICALS, LLC, Defendant.

MEMORANDUM ORDER

SUE L. ROBINSON, District Judge.

At Wilmington this 4th day of September, 2014, having reviewed plaintiff Takeda Pharmaceuticals' ("Takeda") motions for leave to file an amended complaint, and the papers filed in connection therewith;

IT IS ORDERED that said motions for leave to find an amended complaint (Civ. No. 13-1524, D.I. 53; Civ. No. 13-1729, D.I. 36)[1] are granted, for the reasons that follow:

1. Background. Takeda is the holder of approved New Drug Application ("NDA") Nos. 22-351 and 22-353 for the manufacture and sale of single-ingredient oral colchicine[2] for the prevention and treatment of gout flares. ( See D.I. 54 at 3; D.I. 37 at 3) Takeda also holds NDA No. 22-352 for the manufacture and sale of single-ingredient oral colchicine for the treatment of Familial Mediterranean Fever ("FMF").[3] (D.I. 54 at 3; D.I. 37 at 3) In conjunction with the approval of its NDAs, Takeda listed seventeen patents in the publication titled "Approved Drug Products with Therapeutic Equivalence Evaluations" (known as the "Orange Book") for Colcrys®. (See D.I. 53, ex. 1 at ¶ 21; D.I. 36, ex. 1 at ¶ 17)[4] Fourteen patents - U.S. Patent Nos. 7, 619, 004 ("the 004 patent"); 7, 601, 758 ("the 758 patent"); 7, 820, 681 ("the 681 patent"); 7, 915, 269 ("the 269 patent"); 7, 964, 647 ("the 647 patent"); 7, 981, 938 ("the '938 patent"); 8, 093, 296 ("the 296 patent"); 8, 097, 655 ("the 655 patent"); 8, 415, 395 ("the 395 patent"); 8, 415, 396 ("the 396 patent"); 8, 440, 721 ("the 721 patent"); 8, 440, 722 ("the 722 patent"); 7, 964, 648 ("the 648 patent"); and 8, 093, 297 ("the 297 patent") - include claims directed to the treatment of gout (the "gout patents"). (D.I. 53, ex. 1 at ¶ 19; D.I. 36, ex. 1 at ¶ 15) Five patents - U.S. Patent Nos. 7, 906, 519 ("the '519 patent"); 7, 935, 731 ("the 731 patent"); 8, 093, 298 ("the 298 patent"); the 648 patent, and the 297 patent - include claims directed to the treatment of FMF (the "FMF patents"). (D.I. 53, ex. 1 at ¶ 18; D.I. 36, ex. 1 at ¶ 14) The 648 and 297 patents include claims directed to the treatment of both gout and FMF.

2. Par Pharmaceutical, Inc. ("Par"). In December 2011, Par sought approval of an Abbreviated New Drug Application ("ANDA") for a generic version of Colcrys® prior to the expiration of Takeda's patent rights. (DA. 53, ex. 1 at ¶ 28) On February 23, 2012 and March 15, 2012, AR Holding Company, Inc. (now Takeda)[5] received Notice Letters from Par, dated February 21, 2012 and March 13, 2012 respectively, stating that it had filed an ANDA seeking approval for a generic version of Colcrys® for the treatment and prevention of gout flares. (D.I. 54 at 4 n.3; see also D.I. 53, ex. 1 at ¶¶ 29-30) Both Notice Letters included a certification pursuant to 21 U.S.C. § 355(j)(2)(A)(vii)(IV) ("Paragraph IV Certification") certifying that the gout patents are invalid or would not be infringed by Par's proposed product. (D.I. 53, ex. 1 at ¶¶ 29-30) The letters also informed Takeda that Par was not seeking FDA approval for the treatment of the FMF indication based on a "carve out" pursuant too § 355(j)(2)(A)(viii). (See id. ) In response, Takeda filed a complaint on April 4, 2012 alleging ten counts of infringement of certain gout patents[6] pursuant to 35 U.S.C. § 271. ( See D.I. 53, ex. 1 at ¶ 31; Civ. No. 12-419, D.I. 1)

3. On or about July 22, 2013, Takeda received a third Notice Letter from Par informing it that Par had amended its ANDA to seek approval for the treatment of FMF and to "carve out, "[7] or disavow, gout as a treatment indication. ( See Civ. No. 13-1524, D.I. 53, ex. 1 at ¶¶ 33-35) The Paragraph IV Certification included in the third Notice Letter was limited to the five FMF patents. ( See id. at ¶ 33) The third Notice Letter "further informed Takeda that [Par's] proposed labeling does not include dosing instructions or safety information for the treatment or prevention of gout flares." ( Id. at ¶ 34) "Par recently submitted a label amendment to the FDA... for the purpose of limiting FDA approval of its Proposed Product to the treatment of FMF and that, pursuant to § 355(j)(2)(A)(viii), Par seeks to carve out from the FDA approved Colcrys® label... information regarding the treatment and prevention of gout flares...." ( Id. at ¶ 35) In response to Par's notice, Takeda filed the present action alleging infringement of the FMF patents under § 271 on August 30, 2013. (D.I. 1)

4. Amneal Pharmaceuticals, LLC ("Amneal"). In September 2012, Amneal sought approval of an ANDA for a generic version of Colcrys® prior to the expiration of Takeda's patent rights. ( See Civ. No. 13-1729, D.I. 36, ex. 1 at ¶24) On or about February 21, 2013, Takeda received a Notice Letter from Amneal, dated February 20, 2013, stating that it had filed an ANDA seeking approval for a generic version of Colcrys® for the treatment and prevention of gout flares. ( Id. at ¶ 25) The Notice Letter included a Paragraph IV Certification certifying that the gout patents are invalid or would not be infringed by Amneal's proposed product. (Id.) The letter also informed Takeda that Amneal was not seeking FDA approval for the treatment of the FMF indication based on a "carve out" pursuant too § 355(j)(2)(A)(viii). (See id.) In response, Takeda filed a complaint on March 28, 2013 alleging ten counts of infringement of certain gout patents[8] pursuant to 35 U.S.C. § 271. ( See id. at ¶ 26; Civ. No. 13-493, D.I. 1)

5. On August 28, 2013, during fact discovery in Civ. No. 13-493, Amneal notified Takeda that it had voluntarily decided to withdraw its request for FDA approval with respect to the treatment and prevention of gout flares. (Civ. No. 13-1729, D.I. 36, ex. 1 at ¶ 27) On or about September 10, 2013, Takeda received a second Notice Letter from Amneal, which included a Paragraph IV Certification limited to the five FMF patents. ( See id. at ¶ 28) The second Notice Letter "further informed Takeda that [Amneal's] proposed labeling does not include dosing instructions or safety information for the treatment or prevention of gout flares." ( Id. at ¶ 29) Takeda alleges that, "[u]pon information and belief, on or about September 6, 2013, Amneal submitted a label amendment to the FDA... for the purpose of limiting FDA approval of its Proposed Product to the treatment of FMF and that pursuant to § 355(j)(2)(A)(viii), Amneal seeks to carve out from the FDA approved Colcrys® label... information regarding the treatment and prevention of gout flares...." ( Id. at ¶ 30) In response to Amneal's notice, Takeda filed the present lawsuit alleging infringement of the FMF patents under § 271 on October 21, 2013. (D.I. 1)

6. Motions to amend. On May 30, 2014, Takeda filed the present motions seeking to amend its complaints to seek a declaratory judgment that Par's and Amneal's (collectively, "defendants") manufacture and/or sale of their proposed ANDA products will contributorily infringe the gout patents under § 271(c). (D.I. 53; D.I. 36)[9] Specifically, Takeda seeks to modify counts IV and V to seek a declaratory judgment that defendants, upon approval of their proposed ANDA products and expiration of Takeda's Orphan Drug exclusivity, "will contribute to the infringement of the 648 and 297 patents by others, [10] by offering to sell, selling, or distributing within the United States or importing into the United States generic Colcrys® for the treatment and prevention of gout flares" in violation of § 271(c). ( See D.I. 53, ex. 1 at counts IV-V; D.I. 36, ex. 1 at counts IV-V) Takeda also seeks to add twelve claims (counts VI-XVII) seeking declaratory judgments that defendants' proposed ANDA products will contribute to the infringement of the remaining gout patents under § 271(c). (D.I. 53, ex. 1 at counts VI-XVII; D.I. 36, ex. 1 at counts VI-XVII)

7. In support of its motions to amend, Takeda alleges that physicians will prescribe a drug for "off-label" uses of colchicine "whether or not that indication appears on the generic label" (D.I. 53, ex. 1 at ¶ 25; D.I. 36, ex. 1 at ¶ 21), and that pharmacists will substitute defendants' generic colchicine for Takeda's branded drug "irrespective of whether the generic drug is FDA-approved for the indication for which the brand drug was prescribed." (D.I. 53, ex. 1 at ¶ 26; D.I. 36, ex. 1 at ¶ 22) Takeda has provided the following allegation relating to the percentage of the prevalence of use of colchicine to treat FMF:

According to national prescription data from Encuity Research, for the ten-year period between June 2004 and June 2013, approximately only 15, 000 colchicine prescriptions were written for FMF patients in the United States over the past ten years. According to this national prescription data, less than one percent (0.16%) (or 1 in 625) of patients prescribed colchicine were being treated for FMF. And among prescriptions written for FDA-approved uses for colchicine-gout and FMF-approximately 0.18% (or 1 in 555) of the prescriptions were for FMF, while approximately 99.82% of the prescriptions were for gout.

(D.I. 53, ex. 1 at ¶ 23; D.I. 36, ex. 1 at ¶ 19)[11]

8. The court's scheduling order requires that all motions to amend the pleadings be filed by August 1, 2014. (D.I. 18; D.I. 14) The parties have stipulated to extend fact discovery to be completed by October 31, 2014. (D.I. 88; D.I. 63) Trial is scheduled for August 3, 2015. (D.I. 18; D.I. 14) Civ. Nos. 12-419 and 13-493, related to the gout patents, were stayed on September 17, 2013. (Civ. No. 12-419, D.I. 98; Civ. No. 13-493, D.I. 66)

9. Standard. Rule 15(a) of the Federal Rules of Civil Procedure provides that the court "should freely give leave [to amend the pleadings] when justice so requires." Fed.R.Civ.P. 15(a)(2). The factors to consider in weighing a motion for leave to amend are well-settled: (1) whether the amendment has been unduly delayed; (2) whether the amendment would unfairly prejudice the non-moving party; (3) whether the amendment is brought for some improper purpose; and (4) whether the amendment is futile. See Foman v. Davis, 371 U.S. 178, 182 (1962). Courts "ha[ve] discretion to deny a motion to amend for reasons of undue delay, bad faith or dilatory motive on the part of the movant, repeated failure to cure deficiencies by amendments previously allowed, undue prejudice to the ...


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