Sarah Frederick represents clients in complex product liability mass torts, antitrust multi-district litigation and putative class actions, and challenges to agency actions at the trial and appellate levels. She has considerable experience in the pharmaceutical industry, including the statutory and regulatory framework governing prescription pharmaceuticals. She has been recognized by The Legal 500 as a Key Lawyer for Product Liability: Pharmaceuticals & Medical Devices and by Benchmark Litigation’s Under 40 Hotlist for the most promising emerging talent in litigation. She also serves on the ABA’s Mass Torts Subcommittee on Multi-District Litigation and Class Procedures.





Ms. Frederick devotes much of her practice to representing pharmaceutical clients in complex products liability mass torts and antitrust putative class actions, particularly those that require specialized knowledge of the regulatory framework for the prescription pharmaceutical industry. Ms. Frederick also advises pharmaceutical companies on litigation avoidance, including assisting companies with clinical trial preparation, informed consent documentation and labeling. 

Below are significant matters on which Ms. Frederick has been involved:

  • Serves on National Defense Team for Leading Manufacturer Defending Pharmaceutical Mass Torts
    Secured a number of dismissals on the basis of federal preemption, including in the U.S. Supreme Court case of PLIVA, Inc. v. Mensing, 131 S. Ct. 2567 (2011), and before the Eleventh Circuit in Guarino v. Wyeth, LLC, 719 F.3d 1245 (11th  Cir. 2013). Significant experience litigating before state coordinated proceedings in California, New Jersey, Pennsylvania, Missouri, and Massachusetts.
  • Defends Leading Pharmaceutical Manufacturer in Putative Antitrust Class Actions Challenging Patent Litigation Settlements
    Defends clients in putative class actions challenging patent litigation settlements on antitrust grounds, initiated after the Supreme Court’s decision in FTC v. Actavis, 133 S. Ct. 2223 (2013). Obtained complete dismissal on the pleadings in FTC v. AbbVie Inc., 107 F. Supp. 3d 428 (E.D. Pa. 2015).
  • Protects Interests of Pharmaceutical Companies in Agency Actions
    Achieved victory for NDA holder in the face of a challenge to the FDA’s approval of its cutting-edge 505(b)(2) drug application. Protected interests of ANDA holders in retaining regulatory approval for the introduction of the first generic versions of drugs.
  • Regularly Practices Before State and Federal Appellate Courts
    Obtained reversal of adverse judgment on behalf of financial institution client in Vazquez-Robles v. CommoLoCo, Inc., 757 F.3d 1 (1st Cir. 2014). Drafted petition for certiorari to the U.S. Supreme Court on the breadth of immunity provided to financial institutions for Suspicious Activity Reporting. Drafted amicus brief on behalf of DRI – The Voice of the Defense Bar in Mutual Pharmaceutical Co. v. Bartlett, 133 S. Ct. 2466 (2013).
  • Secured Release of Pro Bono Client From Wrongful Imprisonment
    Represented client in post-conviction proceedings, including in a three-day evidentiary hearing on third-party guilt. Obtained an order vacating his conviction, and represented him successfully through the State’s appeal of that decision and his release from prison.
Professional Activities

Ms. Frederick co-chairs the Boston Bar Association Committee on Multidistrict Litigation and Class Actions and serves on the American Bar Associations’ MDL and Class Procedures Subcommittee of the Mass Torts Litigation Section. While attending law school, Ms. Frederick served as Executive Articles Editor for the North Carolina Law Review. Ms. Frederick was also inducted into the Order of the Coif.


Ms. Frederick has been recognized for three consecutive years by Benchmark Litigation’s Under 40 Hot List for the most promising emerging talent in litigation and by The Legal 500 as a Next Generation Partner and Key Lawyer for Product Liability, Mass Tort, and Class Action: Pharmaceuticals & Medical Devices Defense.

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