Cencora, Insurers at Odds Over Choosing Law in Opioid Litigation

Insurance units of American International Group Inc., Hartford Group, and other carriers worked Thursday to convince a Delaware judge to keep a choice-of-law analysis out of opioid-defense litigation.

Special Magistrate Judge Mary Miller Johnston of the Delaware Superior Court questioned the insurers and AmerisourceBergen Corp.—now known as Cencora Inc.—over whether she should consider two Pennsylvania cases that the pharmaceutical company said change the standard in the case.

The insurers sued in 2022, seeking to avoid paying defense costs and any settlements stemming from the underlying opioid litigation. The court, in 2024, found that the insurers had no duty ...