Tofacitinib Data Is In: As Effective As Humira, But Safety Remains A Question

Pfizer Inc. on Sept. 8 released some data from three previously undisclosed pivotal trials for tofacitinib, its high-profile, first-in-class JAK3 inhibitor for rheumatoid arthritis, which it says shows that the drug is equal in efficacy to Abbott Laboratory Inc.’s bestselling TNF inhibitor Humira.