News & Analysis as of

Hatch-Waxman Patent Litigation Clinical Trials

Knobbe Martens

Federal Circuit Review | May 2025

Knobbe Martens on

In Jazz Pharmaceuticals, Inc. v. Avadel Cns Pharmaceuticals, LLC, Appeal No. 24-2274, the Federal Circuit held that injunctions prohibiting the initiation of new clinical trials for paper NDA drugs before patent expiration...more

Fish & Richardson

Federal Circuit Reverses Injunction That Barred Clinical Trials in Jazz v. Avadel

Fish & Richardson on

The Federal Circuit recently considered the scope of a permanent injunction that prohibited a drug manufacturer from conducting certain clinical and regulatory activities in Jazz Pharmaceuticals, Inc. v. Avadel CNS...more

McDermott Will & Emery

Hatch-Waxman or Not, Clinical Trials Aren’t Subject to Injunction

McDermott Will & Emery on

Analyzing the permissible scope of an injunction under the Hatch-Waxman Act, the US Court of Appeals for the Federal Circuit reversed the district court’s prohibitions on an open-label extension (OLE) of a then-running...more

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

Jazz Pharma. v. Avadel CNS Pharma: Federal Circuit Applies a Fact-Specific Approach to the Patent Infringement Safe Harbor

In a precedential ruling, the U.S. Court of Appeals for the Federal Circuit in Jazz Pharma. v. Avadel CNS Pharma., 2025 WL 1298920, — F.4th — (Fed. Cir. May 6, 2025), addressed the scope of the 35 U.S.C. § 271(e)(1) “safe...more

Womble Bond Dickinson

Unexpected Results in Hatch Waxman Litigation: A Review of Legal Decisions from 2023

Womble Bond Dickinson on

Patent owners generally look to secondary indicia to bolster their nonobvious defenses when prior art and/or knowledge of a person of ordinary skill in the art (“POSA”) seem to make the obviousness decision a close call. This...more

Robins Kaplan LLP

Novartis Pharms. Corp. v. Accord Healthcare, Inc.

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Case Name: Novartis Pharms. Corp. v. Accord Healthcare, Inc., No. 2021-1070, 2022 WL 16759 (Fed. Cir. Jan. 3, 2022) (Circuit Judges Moore, Linn, and O’Malley presiding; Opinion by O’Malley, J.; Dissenting Opinion by Moore,...more

Haug Partners LLP

No Clear Error to Find Lack of Written Description for a Method of Treatment Patent Despite Separate Disclosures of the Drug,...

Haug Partners LLP on

Biogen International GMBH, Biogen MA, Inc., v. Mylan Pharmaceuticals Inc. marks the Federal Circuit’s most recent interpretation of the 35 U.S.C. § 112 written description requirement in the Hatch-Waxman context. No....more

Robins Kaplan LLP

Teva Pharms. USA, Inc. v. Sandoz Inc.

Robins Kaplan LLP on

Case Name: Teva Pharms. USA, Inc. v. Sandoz Inc. (In re Copaxone Consol. Cases), 906 F.3d 1013, Fed. Cir. No. 2017-1575, 2018 U.S. App. LEXIS 28751 (Fed. Cir. Oct. 12, 2018) (Circuit Judges Reyna, Bryson, and Stoll; Opinion...more

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