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K&L Gates LLP

First Circuit Adopts But-For Causation Standard for Kickback-Premised False Claims Act Actions

K&L Gates LLP on

On 18 February 2025, the First Circuit Court of Appeals issued its decision in United States v. Regeneron Pharmaceuticals, Inc., determining that “but-for” causation is the proper standard for False Claims Act (FCA) actions...more

Patterson Belknap Webb & Tyler LLP

The First Circuit Requires But-For Causation in False Claims Act Cases Predicated on Violations of the Anti-Kickback Statute,...

Patterson Belknap Webb & Tyler LLP on

On February 18, 2025, in United States v. Regeneron Pharmaceuticals, the First Circuit held that to establish civil liability under the False Claims Act (“FCA”) premised on violations of the Anti-Kickback Statute (“AKS”), the...more

Foley & Lardner LLP

Anti-Kickback Statute Premised False Claims Cases: The “But For” Causation Standard Finds Support from First Circuit

Foley & Lardner LLP on

It’s now 3–1, with the First Circuit (2025) aligning with the Sixth (2023) and Eighth (2022) Circuits finding the meaning of the words “resulting from” — as used in a 2010 amendment to the federal Anti-Kickback Statute (AKS)...more

Foley Hoag LLP

False Claim Act Liability Under Anti-Kickback Statute Requires But-For Causation: First Circuit Narrows Liability in Growing...

Foley Hoag LLP on

On February 18, 2025, the First Circuit Court of Appeals issued its decision in U.S. v. Regeneron Pharmaceuticals, ruling that the Anti-Kickback Statute (“AKS”) requires the government to prove that an AKS violation was the...more

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