The state Supreme Court has declined to hear the appeal of a class of plaintiffs fighting a decertification order in an off-label marketing case against drug maker Pfizer.

That leaves stand a January Superior Court ruling that determined the proposed class, in a case regarding Pfizer’s alleged off-label marketing of an epilepsy drug, was properly decertified when Pfizer presented new evidence that the main expert for the class didn’t prove class members’ individual doctors relied on the marketing.