Lauren Guth Barnes


Hagens Berman Sobol Shapiro, LLP

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Lauren Guth Barnes is a partner in Hagens Berman Sobol Shapiro’s Boston office where she has worked since 2003. Her practice focuses on antitrust, consumer protection, and RICO litigation against drug and medical device manufacturers, in complex class actions and personal injury cases for consumers, large and small health plans, direct purchasers, and state governments.

Although active in a number of cases, Ms. Barnes is co-lead class counsel for direct purchasers in MDL No. 23460: In re. Niaspan Antitrust Litigation and represents direct purchasers in numerous other matters, including the Skelaxin, Suboxone, and Solodyn MDLs. At the same time, Ms. Barnes currently represents health benefit providers in the firm’s Ketek and copay subsidies class litigation, and individuals harmed by pharmaceuticals such as Yaz, Actos, and Granuflo and medical devices including pelvic mesh. Ms. Barnes served as the primary contact for day-to-day operations in the State of Connecticut v. Eli Lilly and Co. Zyprexa litigation, shepherding the case through discovery and summary judgment briefing before reaching a $25 million settlement for the State.

Ms. Barnes has been active in the fight against federal preemption of consumer rights, working to ensure consumers and third party payers maintain an ability to seek remedies when medical device and pharmaceutical makers violate consumer protection laws. She recently co-authored an amicus brief to the Supreme Court in Pliva v. Mensing on this issue on behalf of practitioners and professors who teach and write on various aspects of pharmaceutical regulation and the delivery of healthcare.

Prior to joining the firm, Ms. Barnes worked with Conflict Management Group, a non-profit organization dedicated to promoting peaceful resolution of international disputes and teaching negotiation skills. During her association with the organization, Ms. Barnes worked with members of the United Nations High Commissioner for Refugees on a pilot project in Bosnia-Herzegovina designed to ease tensions and encourage reconciliation in post-conflict societies and contributed to Imagine Coexistence, a book developed out of the collaboration.

Ms. Barnes graduated cum laude from Williams College in 1998 with a Bachelor of Arts degree in International Relations. She earned her law degree cum laude from Boston College Law School in 2005, where she served as Articles Editor for the Boston College Law Review. She is admitted to practice law in the Commonwealth of Massachusetts, District of Massachusetts, Second and Eleventh Circuit Courts of Appeals, and the United States Supreme Court.

Ms. Barnes is active in the American Association for Justice, where she holds a seat on the Board of Governors, is the immediate past-chair of the Women Trial Lawyers Caucus, and serves on several other committees. She serves on the Executive Committee and Board of Governors of the Massachusetts Academy of Trial Attorneys and is co-chair of that organization’s Women’s Caucus. Ms. Barnes was recently honored with a 2013 Excellence in the Law Up & Coming Lawyer award by the Massachusetts Bar Association and Mass Lawyers Weekly.