Purdue Pharma L.P. v. United States ex rel. May

Issue: (1) Whether the False Claims Act"s pre-2010 "public-disclosure bar," 31 U.S.C. § 3730(e)(4) (2009), prohibits claims that are "substantially similar" to prior public disclosures, or instead bars a claim only if the plaintiff"s knowledge "actually derives" from prior disclosures; (2) whether the False Claims Act"s "first-to-file" bar, 31 U.S.C. § 3730(b)(5), precludes a later-filed action that is based on the same facts as an earlier-filed action only so long as the earlier case is still pending; and (3) whether the Wartime Suspension of Limitations Act, 18 U.S.C. § 3287, suspends the limitations period for civil claims, such as a False Claims Act claim brought by a private party.