Dechert Represents GSK in Victory Before Delaware Supreme Court

July 17, 2025

Dechert recently secured a victory before the Delaware Supreme Court, representing GlaxoSmithKline in the In Re Zantac (Ranitidine) Litigation.

This appellate proceeding challenged the Delaware Superior Court's denial of defense motions to exclude expert reports claiming that Zantac, containing ranitidine or its generic equivalent, is capable of causing ten types of cancer.

On July 10, 2025, the Delaware Supreme Court reversed the lower court’s ruling, stating that the Superior Court erred by favoring the admissibility of expert testimony. The defendants had objected to the methodologies of the plaintiffs' experts, but the Superior Court deemed these objections as matters for the jury. It cited Delaware’s evidentiary rules as more permissive than federal rules and allowed expert conclusions based on the alleged disease-causing agent rather than the specific product. The Supreme Court disagreed and reversed the decision.

The Dechert team serving as lead national counsel to GlaxoSmithKline in the Zantac matter included litigation partners Mark Cheffo, Lindsey Cohan, Hayden Coleman and Will Sachse.

Read the full decision here.

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