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DE SIMONE v. ALFASIGMA USA, INC.

Nos. 19-1731, 19-1761, 19-1762.

CLAUDIO DE SIMONE; EXEGI PHARMA, LLC, Plaintiffs-Appellees, v. ALFASIGMA USA, INC., a Delaware corporation, Defendant-Appellant, and VSL PHARMACEUTICALS, INC.; LEADIANT BIOSCIENCES, INC., formerly known as Sigma-Tau Pharmaceuticals, Inc., Defendants. REBECCA TUSHNET, Intervenor, LAW PROFESSORS, Amicus Supporting Appellee. CLAUDIO DE SIMONE; EXEGI PHARMA, LLC, Plaintiffs-Appellees, v. VSL PHARMACEUTICALS, INC., Defendant-Appellant, and ALFASIGMA USA, INC., a Delaware corporation; LEADIANT BIOSCIENCES, INC., formerly known as Sigma-Tau Pharmaceuticals, Inc., Defendants. REBECCA TUSHNET, Intervenor, LAW PROFESSORS, Amicus Supporting Appellee. CLAUDIO DE SIMONE; EXEGI PHARMA, LLC, Plaintiffs-Appellees, v. LEADIANT BIOSCIENCES, INC., formerly known as Sigma-Tau Pharmaceuticals, Inc., Defendant-Appellant, and ALFASIGMA USA, INC., a Delaware corporation; VSL PHARMACEUTICALS, INC., Defendants. REBECCA TUSHNET, Intervenor, LAW PROFESSORS, Amicus Supporting Appellee.

United States Court of Appeals, Fourth Circuit.

Decided February 17, 2021.

Attorney(s) appearing for the Case

ARGUED: Robert Scott Brennen , MILES & STOCKBRIDGE, PC, Baltimore, Maryland; Brian Lawrence Schwalb , VENABLE LLP, Washington, D.C.; Liesel Johanna Schopler , RIFKIN WEINER LIVINGSTON, LLC, Bethesda, Maryland, for Appellants.

Jeremy Wyeth Schulman , SCHULMAN BATTACHARYA, LLC, Bethesda, Maryland, for Appellee.

ON BRIEF: Charles S. Fax , RIFKIN WEINER LIVINGSTON, LLC, Bethesda, Maryland, for Appellant Leadiant Biosciences, Inc. Mitchell Y. Mirviss , Calvin R. Nelson , Elizabeth C. Rinehart , VENABLE LLP, Washington, D.C., for Appellant VSL Pharmaceuticals, Inc. Erinn Maureen Maguire , Annie Meredith McGuire , MILES & STOCKBRIDGE, PC, Baltimore, Maryland, for Appellant Alfasigma USA, Inc. Jeffrey S. Gavenman , SCHULMAN BHATTACHARYA, LLC, Bethesda, Maryland, for Appellees.

Brian Wolfman , Washington, D.C., for Amici Law Professors.

Affirmed in part and vacated in part by unpublished per curiam opinion.

UNPUBLISHED

Unpublished opinions are not binding precedent in this circuit.

In this consolidated appeal, VSL Pharmaceuticals, Inc., Leadiant Biosciences, Inc., and Alfasigma USA, Inc. (collectively, the "VSL Parties") challenge two district court orders, in relevant parts: (1) denying Leadiant's and Alfasigma's motions for...

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