November 26, 2025
Health plans claiming Biogen Inc. illegally stifled competition for its multiple sclerosis drug Tecfidera have said an Illinois federal judge should let their latest complaint proceed to discovery because it fixes earlier pleading deficiencies and better outlines the drugmaker's allegedly anticompetitive scheme.
June 26, 2025
An Illinois federal court tossed a proposed class action accusing Biogen of reducing competition for its multiple sclerosis drug Tecfidera through payments to pharmacy benefit managers, after finding that only some drug pricing lists would have been affected.
June 10, 2025
An Illinois federal judge seemed skeptical Tuesday that health benefit plans accusing Biogen of impairing competition for its multiple sclerosis drug, Tecfidera, have standing to bring their lawsuit under decades-old precedent allowing only direct purchasers to recoup damages.
August 19, 2024
Biogen illegally impaired competition for its multiple sclerosis drug Tecfidera by paying major pharmacy benefit managers to prioritize the brand over generics while it worked to shift the market to a different version of the medication, a multi-employer welfare plan alleged Friday.