Study to Assess Change in Disease Activity and Adverse Events of Oral Upadacitinib Compared to Subcutaneous Adalimumab in Adult Participants With Moderate to Severe Rheumatoid Arthritis

Study Summary

Rheumatoid Arthritis (RA) is a chronic inflammatory disease causing pain, stiffness, swelling and loss of joint function. This study will assess how safe and effective upadacitinib is in treating RA when compared to adalimumab in adult participants with inadequate response or intolerance to one TNF-inhibitor who are on a stable dose of methotrexate (MTX). Adverse events and change in disease activity will be assessed. Upadacitinib is an approved drug for the treatment of RA. This study is double-blinded means that neither the participants nor the study doctors will know who will be given upadacitinib and who will be given adalimumab. Study doctors put the participants in 1 of the 2 groups, called treatment arms randomly, to receive either upadacitinib or adalimumab. There is 1 in 2 chance that participants will receive adalimumab. Each group consists of 2 periods. Approximately 480 participants diagnosed with RA will be enrolled in approximately 250 sites across the world. Participants will receive the oral upadacitinib once daily and matching adalimumab placebo every other week, or the subcutaneous adalimumab every other week and matching upadacitinib placebo once daily during Period 1. Eligible participants will continue to receive same study treatment in Period 2 as assigned in Period 1 and will be followed for 30 days and 70 days. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic. The effect of the treatment will be checked by medical assessments, checking for side effects and completing questionnaires.

Primary Outcome

The DAS28-CRP is a composite index used to assess rheumatoid arthritis disease activity, calculated based on the tender joint count (out of 28 evaluated joints), swollen joint count (out of 28 evaluated joints), Patient's Global Assessment of Disease Activity (NRS), and high-sensitivity C-reactive protein (hsCRP; in mg/L). Scores on the DAS28-CRP range from 0 to approximately 10, where higher scores indicate more disease activity. Low Disease Activity (LDA) based on DAS28 (CRP) is defined as ach

Conditions Studied

Interventions

• DRUG Adalimumab
• DRUG Upadacitinib
• DRUG Upadacitinib Matching Placebo
• DRUG Adalimumab Matching Placebo

Study Locations (20)