ADVERTISEMENT ADVERTISEMENT 9th Circ. 'Directly Supports' Zetia Class Fight, 4th Circ. Told Law360 (April 8, 2021, 11:34 PM EDT) -- Merck and Glenmark have told the Fourth Circuit that a newly issued Ninth Circuit decision upending class certification for buyers alleging price-fixing of canned tuna "directly supports" undoing certification of drug wholesalers accusing the two drugmakers of blocking a generic form of cholesterol drug Zetia. The Ninth Circuit's decertification of three separate classes of direct buyer retailers, individual consumers or end-payers and indirect buyer commercial food preparers suing StarKist Co. and Tri-Union Seafoods LLC, which does business as Chicken of the Sea, warrants Fourth Circuit decertification of the wholesaler class, according to a letter brief filed Wednesday.