Otsuka Pharmaceutical Co. v. Torrent Pharmaceuticals Ltd.

151 F. Supp. 3d 525
District Court, D. New Jersey·Decided November 16, 2015·No. Civil Action Nos. 14-1078 (JBS/KMW), 14-2982 (JBS/KMW), 14-3168 (JBS/KMW), 14-3306 (JBS/KMW), 14-3996 (JBS/KMW), 14-4307 (JBS/KMW), 14-4508 (JBS/KMW), 14-4671 (JBS/KMW), 14-5537 (JBS/KMW), 14-5876 (JBS/KMW), 14-5878 (JBS/KMW), 14-6158 (JBS/KMW), 14-6397 (JBS/KMW), 14-6398 (JBS/KMW), 14-6890 (JBS/KMW), 14-7105 (JBS/KMW), 14-7252 (JBS/KMW), 14-7405 (JBS/KMW), 14-8074 (JBS/KMW), 14-8077 (JBS/KMW), 15-1585 (JBS/KMW), 15-161 (JBS/KMW)·Published·Cited by 5 cases

Opinion

MARKMAN OPINION

SIMANDLE, Chief Judge

Table of Contents

I. INTRODUCTION .. .529

II. BACKGROUND .. .532 ’

A.Factual and Procedural Background ...532

1. Aripiprazole, Generally ... 533

2. The ’615, ’796, and ’760 Patents: Otsu-ka’s Aripiprazole Polymorph Patents ...533

3; The ’350 Patent:: Otsuka’s Asserted Method of Use Patent... 534

4. Otsuka’s Infringement Litigation in this District .. .535

III. CLAIM CONSTRUCTION STANDARD...536

IV. DISCUSSION .. .537

A. “Anhydrous Aripiprazole Crystals B” ...537

B. “mean particle size” ... 543

• 1. Standard for Indefiniteness ... 544

2. The ’615 Patent fails to inform, with reasonable certainty, the meaning of the ■ phrase “mean particle size” ... 546

C. “wherein said low hygroscopicity is defined as a moisture content of [0.40%/0.10%] or less after placing said substance/Crystals for 24 hours in a desiccator maintained at a temperature of 60° C and a humidity level-of 100%” .. .549

D. “aripiprazole drug substance” ... 552
E. “a/the pharmaceutical composition” / “in combination with” .. .553

V. CONCLUSION .. 1557

I. INTRODUCTION

These related -patent infringement actions under the HatchWaxm’an Act, 35 U.S.C. §§ 271, 281, generally concern Plaintiff Otsuka Pharmaceutical Co, Ltd.’s (hereinafter, “Otsuka”) position that Defendants’- submissions' of abbreviated new drug applications (hereinafter,. “ANDAs”) infringe the various patents covering Otsu-ka’s Ability® aripiprazole product, U.S. Patent Nos. 5,006,528 (“the ’528 patent”), 7,053,092 (“the ’092 patent”), 8,017,615 (“the ’615 patent”),' 8,580,796 (“the ’796 patent”), 8,642,600 (“the ’600 patent”), 8,642,760 (“the ’760 patent”), and 8,759,350 (“the, ’350 patent” and collectively, the “patents-in-suit”).

[530]*530Following Otsuka’s preliminary injunction motion practice,' see Otsuka Pharm. Co., Ltd. v. Torrent Pharm. Ltd., Inc., 99 F.Supp.3d 461 (D.N.J.2015), and the parties’ lengthy period for claims construction discovery (marked by a plethora of discovery disputes and discovery motion practice before this Court),1 the parties now request that the Court construe the following five claim phrases:

1. “Anhydrous Aripiprazole Crystals B,” as it appears in asserted claims 3, 4, 15, and 16 of the ’615 Patent, claims 1 and 2 of .the ’796 Patent, and claims 4 and 12 of the ’350 Patent;
2. “mean particle size,” as it appears in asserted claims 3, 4, 15, and 16 of the ’615 Patent;
3. “wherein said low hygroscopicity is defined as a moisture content of [0,40%/0.10%] or less after placing said substance/Crystals for 24 hours in a desiccator. maintained at a temperature of 60° C and a humidity level of 100%,” as- it appears in asserted claims 3, 4, 15,- and -16 of the ’615 Patent, claims 1 and 2■ of the ’796 Patent, and claims 1 and 2 of the ’760 Patent;
4. “aripiprazole drug substance,” as it ■appears in asserted claims 1 and 2 of the ’760 Patent;2 and
5. “a/thé pharmaceutical composition” / “in combination with,” as it appears in asserted claims 1 through 18 of the ’350 Patent.

Otsuka, for its part, largely eschews the need for formal claim construction and submits, in each instance, that the disputed claim phrase should be construed in accordance with its plain and ordinary meaning as understood by a person of ordinary skill in the art. (See, e.g., Otsu-ka’s Opening Claim Constr. Br at 2 (arguing that claim construction proves overall unnecessary, bécausé the disputed phrases have “readily ascertainable and understandable” plain and ordinary meanings).) Defendants argue, by contrast, that the intrinsic record provides a specific definition for each of the disputed phrases, and/or demonstrates that the various claim phrases prove incapable of construction on indefiniteness grounds.3 (See, e.g., Defs.’ Opening Claim Cpnstr-. Br. at 2-3.)

The Court has had the benefit of extensive briefing, argument and testimony at an all-day Markman hearing.4 For the rea-

[531]*531sons that follow, the Court construes the • disputed phrases as follows:5

[532]*532[[Image here]]

II. BACKGROUND

A. Factual and Procedural Background 6

As this Court has summarized previously, Otsuka holds New Drug Application [533]*533(hereinafter, “NDA”) No. 21-436, approved by the Food and Drug Administration (hereinafter, the “FDA”), for aripiprazole tablets, which Otsuka markets for the treatment of certain psychiatric conditions under the trade name Ability®. In''connection with Ability's® listing in the Orange Book, the FDA’s book of drug products approved under the Food, Drug, and Cosmetic Act (hereinafter, the “Orange Book”), 21 U.S.C. § 355(3), Otsuka" identifies, in relevant part, the ’615, the ’796, the ’760, and the ’350 Patents.7

1, Aripiprazole, Generally .

Aripiprazole, an older compound with a complex molecular structure, acts as an atypical antipsychotic agent useful for the treatment of schizophrenia, among other central nervous system disorder^.' (See) e.g., Markman Hr’g Tr. at 21:19-22:2, 39:8-12.)

2. The ’615, ’796, and ’760 Patents: Otsuka’s Aripiprazole * ■ Polymorph Patents

The ’615, the ’796, and the ’760 Patents issued on separate dates,8 but all disclose a “Low Hygroscopic Aripiprazole Drug Substance and Processes for the' Preparation Thereof.”9 (See, e.g., ’615 Patent at 1:45-52.) In simple terms, these patents claim novel forms of anhydrous aripiprazole that have low hygroscopicity. i

Prior art anhydrous' aripiprazole forms proved “significantly, hygroscopic,” meaning that the forms would readily take on water and convert to a hydrous form if exposed to moisture. (Id at 1:50-57.) As a result, these prior art forms suffered from less bioavailability and dissolubility, bateh-to-batch variability, and a “significantly decreased” shelf-life. (Id. at 1:58-2:13; see also Markman Hr’g Tr. at 33:13-24; 60:22-61:12.)

■ The novel forms disclosed by the ’615, the.’796, and the ’760 Patents claim to have solved these problems, particularly the susceptibility to moisture that plagued pri- or art anhydrous aripiprazole forms. (See, e.g., ’615 Patent at 1:45-52.) The anhydrous aripiprazole forms disclosed by these patents specifically consist of “novel anhydrous aripiprazole crystals” that have “reduced ' hygroscopicity,”10

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Otsuka Pharmaceutical Co. v. Torrent Pharmaceuticals Ltd., 151 F. Supp. 3d 525 (D.N.J. 2015).

151 F. Supp. 3d 525 (Otsuka Pharmaceutical Co. v. Torrent Pharmaceuticals Ltd.) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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