Reducing or Maintaining the Dose of Subcutaneous Tocilizumab in Patients With Rheumatoid Arthritis in Clinical Remission: A Randomized, Open-Label Trial.

Objective: To evaluate the efficacy and safety of increasing the dose interval of subcutaneous tocilizumab (TCZ-SC) in patients with rheumatoid arthritis (RA) who are in clinical remission.

Methods: RA patients with active disease and an inadequate response to conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) or to a biologic agent were entered into a single-arm treatment phase with 162 mg of TCZ-SC administered once weekly (TCZ-SC 162 mg qw) as monotherapy or in combination with a csDMARD for 24 weeks. Patients who achieved clinical remission at weeks 20 and 24 were randomized to continue with the same regimen or to switch to 162 mg TCZ-SC administered every 2 weeks (TCZ-SC 162 mg q2w) for 24 weeks (open-label).