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This is a randomized, double-blind study comparing ABT-494 to placebo in Japanese participants with moderately to severely active rheumatoid arthritis who are on a stable dose of conventional synthetic disease-modifying anti-rheumatic drugs (csDMARDs) and have an inadequate response.
Following marketing approval of upadacitinib for rheumatoid arthritis in Japan, this study will become a post-marketing clinical study and include a long-term extension period.
Full description
This study consisted of a 35-day screening period; a 12-week randomized, double-blind, parallel-group, placebo-controlled treatment period (Period 1); a 248-week blinded long-term extension period (Period 2); and a 30-day follow-up period (call or visit).
Participants who met eligibility criteria were randomized in a 3:3:3:1:1:1 ratio to one of six treatment groups:
Enrollment
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Inclusion criteria
Diagnosis of rheumatoid arthritis (RA) for >= 3 months who also fulfill the 2010 American College of Rheumatology (ACR)/European League Against Rheumatism (EULAR) classification criteria for RA.
Subjects have been receiving conventional synthetic disease-modifying anti-rheumatic drug (csDMARD) therapy >= 3 months and on a stable dose for >= 4 weeks prior to the first dose of study drug.
Subject has >= 6 swollen joints (based on 66 joint counts) and >= 6 tender joints (based on 68 joint counts) at Screening and Baseline Visits.
Subjects with prior exposure to at most one biological disease-modifying anti-rheumatic drug (bDMARD) may be enrolled (up to 20% of total number of subjects) after the required washout period. Specifically, prior to enrollment:
Exclusion criteria
Primary purpose
Allocation
Interventional model
Masking
197 participants in 6 patient groups
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Data sourced from clinicaltrials.gov
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