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This study is being conducted to validate various biomarkers in patients with RA with varying levels of disease severity. Subjects with a diagnosis of rheumatoid arthritis (RA) will be included as controls. The sudy will measure the baseline levels and the intra- and inter-subject variability of exhaled nitric oxide (NO) in patients with inactive/mild and moderate/severe RA on stable therapy or during a course glucocorticoids. In addition exhaled NO levels will be correlated with intra-articular inflammation (power Doppler ultrasonography) as well as markers of systemic inflammation (CRP, ESR).
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Power doppler ultrasonography | Procedure | |||
| High frequency ultrasonography | Procedure |
| ||
| Exhaled nitric oxide assessment | Procedure |
Inclusion criteria:
Exclusion criteria:
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| Name | Affiliation | Role |
|---|---|---|
| GSK Clinical Trials, MD | GlaxoSmithKline | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| GSK Investigational Site | London | W6 8LH | United Kingdom |
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| ID | Term |
|---|---|
| D001172 | Arthritis, Rheumatoid |
| D010003 | Osteoarthritis |
| ID | Term |
|---|---|
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
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| D003240 |
| Connective Tissue Diseases |
| D017437 | Skin and Connective Tissue Diseases |
| D001327 | Autoimmune Diseases |
| D007154 | Immune System Diseases |