(BUSINESS WIRE)--Pfizer Inc. commented on an abstract concerning the ORAL Sync Phase 3 study of tofacitinib in patients with rheumatoid arthritis (RA) which has been posted for the European League Against Rheumatism (EULAR) conference. In this study, four deaths were reported in the tofacitinib arms, three of which were determined by the investigators not to be study drug related. The cases reported that were determined not to be
