4.Subjects must have a documented history of positive antinuclear antibody (ANA), OR a screening result of positive ANA, OR a documented history or positive screening result of elevated anti-dsDNA or ENA antibodies 5.Subjects must have been on prednisone (or prednisone equivalent) for ≥8 weeks prior to the Screening Visit and on a stable dose of 7.5 mg to 30 mg of prednisone (or prednisone equivalent) for ≥ 4 weeks prior to the Screening Visit.