Astellas Pharma Inc. v. Sandoz Inc.

CourtDistrict Court, D. Delaware
DecidedOctober 22, 2024
Docket1:20-cv-01589
StatusUnknown

This text of Astellas Pharma Inc. v. Sandoz Inc. (Astellas Pharma Inc. v. Sandoz Inc.) is published on Counsel Stack Legal Research, covering District Court, D. Delaware primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Astellas Pharma Inc. v. Sandoz Inc., (D. Del. 2024).

Opinion

IN THE UNITED STATES DISTRICT COURT FOR THE DISTRICT OF DELAWARE

ASTELLAS PHARMA INC., et al.

Plaintiffs, 1:20CV1589

v. MEMORANDUM AND ORDER SANDOZ INC., et. al.

Defendants.

This matter arises on Plaintiffs’ (“Astellas”) motion to supplement the complaint and demand for a jury trial. D.I. 620, 622. Defendants (collectively, “the Generics Manufacturers”) oppose supplementation and assert the Court should decide infringement and validity based on the record developed at the bench trial. D.I. 628. The Court agrees with the Generics Manufacturers. This litigation is in advanced stages and the Federal Circuit contemplated a narrow role for the Court on remand. Therefore, adding additional allegations on this issue would prejudice the Generics Manufacturers and the Court, who have completed a bench trial based on Astellas’s ANDA claims, and delay resolution of this matter even further. Moreover, this matter has been litigated as an ANDA case and it would be prejudicial to change the focus to a traditional infringement case at this stage. To the extent Astellas seeks a jury trial on the issue submitted to the bench in 2023, they waived the right by trying the issues in equity and the Court declines to retry with an advisory jury under Rule 39(c) as a matter of discretion. Nothing in this order precludes Astellas from litigating the Generics Manufacturers’ entry to the market and seeking a jury trial on infringement by filing a related case. The Court only concludes, in its discretion based on the unique circumstances in this case, that the issues arising from the Generics Manufacturers’ launch of their competing product are best addressed in a separate action. BACKGROUND This case is one of several in a long running patent dispute regarding a sustained release mirabegron formulation sold by Astellas under the brand name Myrbetriq®. The

drug is covered by several patents held by Astellas, including the patent in suit, United States Patent No. 10,842,780 (“‘780 Patent”). This case initially arose when the Generics Manufacturers filed Abbreviated New Drug Applications (“ANDAs”) for their generic sustained release formulations of mirabegron. D.I. at 1. ANDAs are a procedure that allows a manufacturer of a generic drug to receive FDA approval based on the existing brand-name drug’s safety and efficacy studies. 21 U.S.C. § 355(j). This procedure allows the generics manufacturers to enter the market on an abbreviated time frame compared to the traditional application process. Laura J. Grebe, Comment, Generic Entry in a Rough Economy- Proposed Legislation

May Ease Health Care Costs, 14 Marq. Intell. Prop. L. Rev. 167, 172 (2010). Under the Hatch-Waxman Act, an innovative manufacturer is permitted to file a patent infringement action based on the ANDA and seek an injunction preventing the drug from entering the market. 35 U.S.C. § 271(e)(2). However, because ANDA proceedings usually occur before the generic drug has gone to market and caused damage to the innovative manufacturer, only equitable remedies (i.e., injunctive and declaratory relief) are generally available. See Robert A. Matthews, 6 Annotated Patent Digest § 39:154 (collecting cases). As a result, issues in ANDA cases, including infringement and validity, are usually resolved by a bench trial rather than a jury trial. Id. This legal context shaped the way this case has been litigated. In its initial complaint, Astellas sought equitable relief including: (1) a declaration that the products described in the Generics Manufacturers’ ANDAs infringed the ‘780 Patent, and (2) a permanent injunction barring the Generics Manufacturers from bringing

their products to market. D.I. 1 at 40–41. The original complaint did not seek damages, but reserved the right to assert damages claim, should the Generics Manufacturers market their products. Id. at 41. After filing the complaint, the Parties litigated this case as an ANDA case, focused on the propriety of injunctive relief. See e.g., D.I. 495 ¶ 124 (listing relief sought at trial). This culminated in a bench trial, where the Court considered infringement, the Generics Manufacturers’ enablement invalidity theory, and Astellas’s entitlement to injunctive relief. See D.I. 526–530, transcripts. After trial, the Court entered judgement after concluding the ‘780 Patent was an invalid attempt to patent a natural law applied via routine, conventional, and well-known methods. See D.I. 571.

The Federal Circuit reversed. Astellas Pharma, Inc. v. Sandoz Inc., No. 2023- 2032, 2024 WL 4219374, at *7 (Fed. Cir. Sept. 18, 2024). The panel determined the Court overstepped its bounds and abused its discretion by finding the ‘780 Patent invalid on a theory not argued or developed by the parties. Id. at *6. The panel instructed the Court to “adjudic[ate] the issues properly raised and supported by the record. Those issues are limited to infringement and validity under 35 U.S.C. § 112.” Id. The panel did not reverse based on trial error or order a new trial. Instead, the panel remanded “for adjudication of the case as it was shaped by the parties.” Id. at *7. While the case was before the Federal Circuit, the Generics Manufacturers launched their sustained release mirabegron formulations. See D.I. 623. After the Federal Circuit issued its mandate, Astellas filed the present motion to supplement and sought to add allegations regarding the product launch, willfulness, and infringement damages. D.I. 620, 622.

LEGAL STANDARDS Fed. R. Civ. P. 15(d) provides “[o]n motion and reasonable notice, the court may, on just terms, permit a party to serve a supplemental pleading setting out any transaction, occurrence, or event that happened after the date of the pleading to be supplemented.” Supplementation under Rule 15(d) is within the discretion of the trial court but “[l]eave to supplement should be granted if it will promote the just disposition of the case, will not cause undue prejudice or delay and will not prejudice the rights of any parties.” Medeva Pharma Ltd. v. Am. Home Prod. Corp., 201 F.R.D. 103, 104 (D. Del. 2001). A court “should apply the Rule in a manner securing the just, speedy, and inexpensive

determination of every action.” Id. “Substantial or undue prejudice to the non-moving party” in the form of “additional discovery, cost, and preparation to defend against new facts or new theories” “is a sufficient ground for denial of leave” Cureton v. Nat’l Collegiate Athletic Ass’n, 252 F.3d 267, 273 (3d Cir. 2001).1 Fed. R. Civ. P. 38 governs the right to a jury trial in a civil case. It preserves “the right of trial by jury as declared by the Seventh Amendment of the Constitution––or as provided by federal statute.” Id. The Seventh Amendment provides for a jury trial for “suits at common law” and does not extend to cases seeking equitable relief. U.S. Const.

1 In patent cases, the district court applies regional circuit law for general procedural issues. Wordtech Sys., Inc v. Integrated Networks Sols., Inc., 609 F.3d 1308, 1318 (Fed. Cir. 2010). amend. VII; Lytle v. Household Mfg., Inc., 494 U.S. 545

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