Van der Heijde et al., carried out a study to show whether upadacitinib offers an effective treatment option for bDMARD-naïve and bDMARD-IR patients with active AS. Their results indicated that upadacitinib 15 mg significantly improved the signs and symptoms of active AS. The treatment was well tolerated for 14 weeks in bDMARD-IR patients, consistent with results observed in the upadacitinib AS bDMARD-naïve study.