Pharmaceutical The Italian Antitrust Authority has opened an investigation against Essetifin SpA, Leadiant Biosciences SpA, Leadiant Biosciences Ltd, Leadiant GmbH and Sigma-Tau Arzneimittel GmbH, belonging to the Leadiant group, to verify the allegation that the latter abused its dominant position in the Italian market for the production and sale of chenodeoxycholic acid (CDCA)-based medicines for the treatment of the rare disease, cerebrotendinous xanthomatosis. 19 October 2019