News & Analysis as of

Pharmaceutical Patents Abbreviated New Drug Application (ANDA) Food and Drug Administration (FDA)

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Norwich Pharms., Inc. v. Kennedy Jr.

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Nature of the Case and Issue(s) Presented: Salix holds NDAs for 200mg and 550mg Xifaxan. The 550mg strength product was approved to treat irritable bowel syndrome with diarrhea (“IBS-D indication”) and hepatic encephalopathy...more

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Ingenus Pharms., LLC v. Nexus Pharms., Inc.

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Nature of the Case and Issue(s) Presented: Cyclophosphamide is an antineoplastic agent used to treat various cancers, including lymphomas, myeloma, leukemia, and breast carcinoma. The ’952 patent, issued to Plaintiffs in May...more

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Generic Launches

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Abbreviated New Drug Applications and 505(b)(2) Applications - This chart tracks the date, drug, reference-listed company, applicant, and indications of publicly available drug launches resulting from Abbreviated New Drug...more

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ANDA Litigation Settlements

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Reported settlements in federal district court cases - This chart summarizes the case name, drug, patents-in-suit, and publicly available terms for reported settlements in federal district court cases that are filed pursuant...more

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ANDA Approvals

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New Drug Applications and 505(B)(2) Applications - This chart tracks the date, drug, reference-listed company, and applicant of Abbreviated New Drug Applications and 505(b)(2) Applications receiving final approval by the FDA....more

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Janssen Pharms., Inc. v. Mylan Labs. Ltd.

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Invega Trinza® (paliperidone palmitate) - Case Name: Janssen Pharms., Inc. v. Mylan Labs. Ltd., No. 2023-2042, 2025 WL 946390 (Fed. Cir. Mar. 28, 2025) (Circuit Judges Dyk, Prost, and District Judge Goldberg presiding;...more

Foley & Lardner LLP

GLP-1 Receptor Agonists: Drug Litigation Overview and Trends

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The recent uptick and rise in popularity of GLP-1 drugs for addressing weight loss and obesity has led to an increase in U.S. litigation involving this class of drugs. Over the past few years, litigation has focused on a wide...more

McDermott Will & Schulte

What’s the (Re)issue? Patent Term Extensions for Reissue Patents

Addressing the calculation of patent term extensions (PTEs) under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit affirmed a district court decision that under the act the issue date of the original...more

BakerHostetler

A Later-Discovered Improvement to an Invention Cannot Be Used To Reach Back and Invalidate an Earlier-Filed Patent

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Novartis markets and sells a combination therapy of valsartan and sacubitril under the brand name Entresto® for the treatment of various forms of heart failure. MSN submitted an Abbreviated New Drug Application seeking...more

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Novartis Pharms. Corp. v. Becerra

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Entresto® (sacubitril/valsartan) - Case Name: Novartis Pharms. Corp. v. Becerra, Civ. No. 24-cv-2234 (DLF), 2024 WL 4492072 (D.D.C. Oct. 15, 2024) (Friedrich, J.)  Drug Product and Patent(s)-in-Suit: Entresto®...more

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Melinta Therapeutics, LLC v. Nexus Pharms., Inc.

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Minocin® (minocycline) - Case Name: Melinta Therapeutics, LLC v. Nexus Pharms., Inc., Civ. No. 21-2636, 2024 WL 4799896 (N.D. Ill. Nov. 15, 2024) (Kness, J.)  Drug Product and Patent(s)-in-Suit: Minocin® (minocycline);...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Personal Jurisdiction Over Foreign Companies that File an ANDA or aBLA in the U.S.

On January 29, 2025, the Federal Circuit issued paired decisions addressing Samsung Bioepis’s (“SB”) and Formycon AG’s (“Formycon”) appeals of preliminary injunctions entered in ongoing aflibercept biosimilar litigations with...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Federal Circuit Reverses Decision Finding Lack of Written Description for Patent Claiming a Pharmaceutical Composition Comprising...

The Federal Circuit recently reversed a District of Delaware decision that invalidated claims of Novartis’s Orange Book listed patent, U.S. Patent No. 8,101,659 (the “’659 patent”), for its blockbuster drug Entresto®, a...more

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Purdue Pharma L.P. v. Accord Healthcare, Inc.

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OxyContin® (oxycodone HCl) - Case Name: Purdue Pharma L.P. v. Accord Healthcare, Inc., No. 2023-1953, 2024 WL 5244764 (Fed. Cir. Dec. 30, 2024) (Circuit Judges Prost, Reyna, and Taranto presiding; Opinion by Prost, J.)...more

Womble Bond Dickinson

2024 Hatch-Waxman Year in Review

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In 2024, the Hatch-Waxman Act continued to play a critical role in the U.S. pharmaceutical landscape, driving the dynamics between brand-name drugmakers and generics. This landmark legislation, enacted to encourage innovation...more

McDermott Will & Schulte

Transparency Is the Best Medicine: Device Parts Don’t Justify Orange Book Listing

The US Court of Appeals for the Federal Circuit affirmed a district court’s delisting of patents from the Orange Book because the patent claims did not “claim the drug that was approved” or the active ingredient of the drug...more

Fish & Richardson

Hatch-Waxman 201

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For branded drugmakers, the development of a pharmaceutical product approved by the Food and Drug Administration (FDA) all but assures generic competition. As discussed during the first installment of our Hatch-Waxman series,...more

Wolf, Greenfield & Sacks, P.C.

CAFC Decision on Orange Book Listings for Drug/Device Combination Patents

On December 20th, 2024, the Court of Appeals for the Federal Circuit issued an important decision in Teva Branded Pharmaceutical Products R&D v. Amneal Pharmaceuticals that impacts Orange Book (OB) listings for patents...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - December 2024 #3

CloudofChange, LLC v. NCR Corp., Appeal No. 2023-1111 (Fed. Cir. Dec. 18, 2024) In our Case of the Week, the Federal Circuit addressed the question of divided infringement in the context of system claims. In its...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Federal Circuit: Patent Must Claim Active Ingredient for Orange Book Listing

On December 20, 2024, the U.S. Court of Appeals for the Federal Circuit issued a significant ruling in the Teva v. Amneal case following oral arguments before the Federal Circuit, which we discussed in our previous article. ...more

McCarter & English, LLP

Drug Delivery Device Patents Removed from Orange Book

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The listing of patents in the Orange Book has an important role in intellectual property protection for pharmaceuticals. Patents listed in the Orange Book can include, without question, patents covering compositions or...more

WilmerHale

USA: Unpacking the shift – Heightened antitrust scrutiny on Orange Book listings

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Forty years ago, Congress passed the Hatch-Waxman Act, which streamlined the generic drug approval process and revamped how patent infringement claims would be litigated against those prospective generic drug applicants. At...more

DLA Piper

Silvergate Pharmaceuticals v. Bionpharma: The Relevance of Offers of Confidential Access Under the Hatch-Waxman Statute and Awards...

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In Silvergate Pharmaceuticals, Inc. v. Bionpharma Inc., the US District Court for the District of Delaware decided an open question regarding pre-filing investigation and attorney fees under Title 35 of the US Code, Section...more

Rothwell, Figg, Ernst & Manbeck, P.C.

Defining an Orange Book ‘Drug’

The Federal Circuit heard oral argument on November 8, 2024, grappling with the issue of what patent claims may properly be listed in the Orange Book. In late 2023, Teva filed a complaint for patent infringement in response...more

Robins Kaplan LLP

Generic Launches - Abbreviated New Drug Applications and 505(b)(2) Applications

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This chart tracks the date, drug, reference-listed company, applicant, and indications of publicly available drug launches resulting from Abbreviated New Drug Applications and 505(b)(2) Applications....more

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