Piv­otal da­ta for Am­gen’s Tavneos have been re­tract­ed from the New Eng­land Jour­nal of Med­i­cine, cre­at­ing an­oth­er ob­sta­cle for the be­lea­guered au­toim­mune drug. Two aca­d­e­m­ic au­thors re­quest­ed the re­trac­tion cit­ing an on­go­ing FDA in­ves­ti­ga­tion that sug­gest­ed re­sults for nine pa­tients were reeval­u­at­ed af­ter the tri­al was un­blind­ed...