This study collected blood samples from adults with rheumatoid arthritis (RA) who were not responding well — or could not tolerate — their current disease-modifying medication and were starting a new biologic or targeted treatment.
The goal was to better understand how these treatments work in real patients over time.
No experimental drug was given; participation involved providing blood samples at regular visits.
Condition: Rheumatoid Arthritis
Learn more: View on ClinicalTrials.gov