SUPERNUS PHARMACEUTICALS, INC. v. AJANTA PHARMA LIMITED

CourtDistrict Court, D. New Jersey
DecidedDecember 1, 2022
Docket3:21-cv-06964
StatusUnknown

This text of SUPERNUS PHARMACEUTICALS, INC. v. AJANTA PHARMA LIMITED (SUPERNUS PHARMACEUTICALS, INC. v. AJANTA PHARMA LIMITED) is published on Counsel Stack Legal Research, covering District Court, D. New Jersey primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
SUPERNUS PHARMACEUTICALS, INC. v. AJANTA PHARMA LIMITED, (D.N.J. 2022).

Opinion

UNITED STATES DISTRICT COURT DISTRICT OF NEW JERSEY

NOT FOR PUBLICATION

SUPERNUS PHARMACEUTICALS, INC,, Civ. No. 21-6964 (GC) Plaintiff, V. OPINION AJANTA PHARMA LIMITED and AJANTA PHARMA USA INC., Defendants. SUPERNUS PHARMACEUTICALS, INC., . Civ. No. 21-14628 (GC) Plaintiff, V. OPINION TORRENT PHARMACEUTICALS LTD. and TORRENT PHARMA INC., Defendants. CASTNER, District Judge THIS MATTER comes before the Court on the Joint Claim Construction and Prehearing Statement regarding U.S. Patent Nos. 8,298,580 (filed Dec. 17, 2010) (“the ’580 Patent”), 8,663,683 (filed Aug. 27, 2012) (“the ’683 Patent”), 8,877,248 (filed July 14, 2014) (“the °248 Patent”), 8,992,989 (filed Sept. 29, 2014) (the °989 Patent”), 9,549,940 (filed Sept. 8, 2016) (“the "940 Patent”), 9,622,983 (filed Sept. 8, 2016) (“the °983 Patent”), and 10,314,790 (filed March 30, 2017) (the °790 Patent”) (collectively, the “patents in suit”) submitted by Plaintiff Supernus

Pharmaceuticals, Inc. (“Plaintiff”) and Defendants Ajanta Pharma Ltd. and Ajanta Pharma USA Inc. (“Ajanta”), and Torrent Pharmaceuticals Ltd. and Torrent Pharma Inc. (“Torrent”) (collectively, “Defendants”) pursuant to L. Pat. R. 4.3. (ECF No. 61.) On May 9, 2022, Plaintiff and Defendants filed opening briefs. (ECF Nos. 67, 68.) Plaintiff submitted the Expert Declaration of Mansoor A. Khan, R.Ph., Ph.D., with its opening brief. (See generally Opening Declaration of Mansoor A. Khan (“Opening Khan Decl.”), ECF No. 68-2.) On July 1, 2022, Plaintiff and Defendants filed responsive briefs. (ECF Nos. 76, 77.) Plaintiff submitted another Declaration of Mansoor A. Khan, P.Ph., Ph.D., with its responsive brief. (See generally Responsive Declaration of Mansoor A. Khan (“Responsive Khan Decl.”}, ECF No. 77-1.) The parties dispute five claim terms that appear in the patents in suit, (See Joint Prehr’g Stmt. Ex. A, ECF No. 61.) On July 21, 2022, pursuant to L. Pat. R. 4.6, the Court held a Markman hearing to construe the claim terms. (ECF No. 78.) The claim terms are construed below. BACKGROUND A. Procedural Background This case arises out of Defendants’ filing of Abbreviated New Drug Applications (“ANDAs”) with the Food and Drug Administration (“FDA”) to seek approval to market a generic version of the pharmaceutical product Trokendi XR® (hereinafter, “Trokendi”), (Joint Prehr’g Stmt. {.) Plaintiff, the pharmaceutical company that holds the New Drug Application ((NDA”) for Trokendi, alleges that Defendants’ ANDAs infringe on the seven patents in suit, as well as three additional Trokendi patents, United States Patent Nos. 8,298,576 (“the *576 Patent”),

8,889,191 (“the °191 Patent”), and 9,555,004 (“the °004 Patent”), (collectively, the “Trokendi patents”). (id. at 1; Compl. 4 1, 54-133, ECF No. 1.)! To market and sell Trokendi, Plaintiff listed the Trokendi patents in the FDA’s Approved Drug Products with Therapeutic Equivalence Applications, commonly known as the Orange Book. See 21 U.S.C. § 355(b)(1), (c)(2); (Compl. | 28.) Thereafter, Defendants filed their ANDAs with the FDA to market generic versions of Trokendi. See 21 U.S.C. § 355G)(1); (Compl. ff] 39-42.) Accordingly, pursuant to 21 U.S.C. § 355()(S)(B)Gii), Plaintiff initiated this suit against Defendants because Defendants requested to market the generic version of Trokendi prior to the expiration of the Trokendi patents, (Compl. €§ 54-133.) B. The Patents in Suit All seven of the patents in suit are called “Sustained-Release Formulations of Topiramate,” and they share the same specification.” (’580 Patent col, 1 1. 1-2, Compl. Ex. B, ECF No. 1-2; Patent col. 1 1. 1-2, Compl. Ex. C, ECF No. 1-3; ’248 Patent col. 1 1. 1-2, Compl. Ex. D, ECF No. 1-4; °989 Patent col. 1 1. 1-2, Ex. F, ECF No. 1-6; °940 Patent col. 1 1. 1-2, Compl. Ex. G, ECF No, 1-7; °983 Patent col. 1 1, 1-2, Compl. Ex. I, ECF No. 1-9; °790 Patent col. 1 1. 1-2, Compl. Ex. J, ECF No, 1-10; see also Markman H1’g Tr. (“Tr.”) 15:25--16:3, 60:1-60:5, ECF No. 87.) Topiramate is a pharmaceutical product that has been approved for use as an “antiepileptic agent” to treat seizures and migraines under the trade name Topamax® (hereinafter, “Topamax”).

' The Torrent and Ajanta Defendants agreed to consolidate their actions on December 17, 2021. (ECF No, 43.) Unless specified otherwise, citations refer to the docket in the consolidated action, Supernus Pharmaceuticals, Inc. y. Ajanta Pharma Lid et al., Civ. No. 21-6964 (D.N.J. 2021). ? When citing to the shared specification of the patents in suit, the Court cites to the ’580 Patent. See Gemalto S.A. v. HTC Corp., 754 F.3d 1364, 1366 & n.2 (Fed, Cir. 2014),

Patent col. 1 1. 16-22.) Topamax is administered in “immediate release dosage form,” which means that the “topiramate is rapidly absorbed with plasma drug concentrations peaking in approximately 2 hours.” (Cd, col. 5 1, 23-26.) This type of administration is “associated with a peak in plasma concentrations of the drug, and the fluctuations associated with the peaks and valleys of blood plasma levels of the drug are undesirable.” (Ud. col. 1 1. 49-53.) The Trokendi patents address this problem by providing a “sustained release” of topiramate where the “sustained release formulation comprises an extended release (XR) component and an optional immediate release (IR) component.” (/d. col. 2 1, 6-10, 24-27.) With these sustained release formulations, the Trokendi patents aim to “reduc[e] in the frequency or severity of at least one side effect associated with the topiramate treatment,” and “provide a sustained release formulation that can be administered orally once a day” without the associated side effects. (dd. 21. 11-19; Tr. 19:19-20:11.) I, LEGAL STANDARD The meaning and scope of patent claims are questions of law to be decided by the court. Markinan v. Westview Instruments, Inc., 517 U.S. 370, 372 (1996). “It is a bedrock principle of patent law that the claims ofa patent define the invention to which the patentee is entitled the right to exclude.” Phillips vy. AWH Corp., 415 F.3d 1303, 1312 (Fed. Cir. 2005) (internal citation and quotation marks omitted). “[T]here is no magic formula or catechism for conducting claim construction.” /d. at 1324. Instead, the Court is free to attach the appropriate weight to appropriate sources “in light of the statutes and policies that inform patent law.” fd. (citing Vitronics Corp. v. Conceptronic, Inc., 90 F.3d 1576, 1582 (Fed. Cir. 1996)). “Claim construction begins with the

3 The claims and specification of the patents in suit refer to “extended release” and “XR” interchangeably, and “immediate release” and “IR” interchangeably. The Court does the same in this Opinion.

intrinsic evidence of the patent—the claims, the specification, and the prosecution history—and may require consultation of extrinsic evidence to understand the state of the art during the relevant □ time period.” Merck Sharp & Dohme Corp. v. Teva Pharms. USA, Inc., 2019 WL 943532, at *2 (D.N.J. Feb. 26, 2019); see also Phillips, 415 F.3d at 1317.

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SUPERNUS PHARMACEUTICALS, INC. v. AJANTA PHARMA LIMITED, Counsel Stack Legal Research, https://law.counselstack.com/opinion/supernus-pharmaceuticals-inc-v-ajanta-pharma-limited-njd-2022.