What this phase means
Phase 3: this treatment already looked useful in smaller studies. Now it is tested in a large group, often against standard care or a dummy treatment, to see if it should be approved.
Phase labels are FDA/ICH categories applied to the registry Phase field. They are not a finding that this study succeeded.
What the registry says happens
If you join, the listed intervention(s) are Methotrexate, Abatacept, or Adalimumab. The registry lists allocation as randomized. Rheumatoid arthritis (RA) is a common disease with approximately 1% prevalence.
They plan to enroll about 400 people at Omaha. Taking part typically means taking a study drug (or dummy pill) plus check-ins.
Official title (unrewritten)
Treatment of Rheumatoid Arthritis With Disease-modifying Antirheumatic Drugs (DMARDs): Predictors of Response
Interventions: Methotrexate, Abatacept, Adalimumab, Azathioprine, Baricitinib, Certolizumab, Etanercept, Golimumab, Hydroxychloroquine, Infliximab, Leflunomide, Minocycline, Rituximab, Sarilumab, Sulfasalazine, Tofacitinib
Primary outcome (registry wording): Efficacy of Disease-modifying Antirheumatic Drugs Therapy for Rheumatoid Arthritis