Rheumatoid Arthritis
Conditions
Keywords
Rheumatoid arthritis, cardiovascular disease, adalimumab
Brief summary
The purpose of this study is to determine whether anti-inflammatory treatment with adalimumab (Humira) reduces endothelial activation in blood vessels in patients with active rheumatoid arthritis. Markers of endothelial activation are assessed in muscle tissue before treatment and after 3 months, and related to other biomarkers and clinical outcomes.
Interventions
40 mg IV every 14 days
Sponsors
Study design
Eligibility
Inclusion criteria
* Clinical diagnosis of rheumatoid arthritis * Fulfillment of the American College of Rheumatology 1987 criteria for rheumatoid arthritis * Active disease despite treatment with at least one disease modifying anti-rheumatic drug * Treatment with adalimumab indicated according to the the patient's rheumatologist * At least six swollen joints in 28-joint index * CRP \> 8 mg / L within the last three months
Exclusion criteria
* Treatment with anti-TNF drugs in the last three months * Treatment with intravenous corticosteroids within fourteen days * Ongoing treatment with oral high-dose corticosteroids (equivalent to ≥ 20 mg of prednisolon daily) or completed such treatment less than fifteen days before inclusion * Severe bleeding disorder * Extensive or refractory leg ulcers * Severe peripheral vascular disease
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Endothelial expression of HLA-DQ in muscle biopsies | 3 months | Vascular tissue area stained for HLA-DQ by immunohistochemistry, quantified by computer assisted image analysis |
| Endothelial expression of interleukin-1 alpha in muscle biopsies | 3 months | Vascular tissue area stained for interleukin-1 alpha by immunohistochemistry, quantified by computer assisted image analysis |
| Carotid artery intima-media thickness | 3 months | Thickness of the intima and media of the common carotid artery, measured by ultrasound. Mean of two measures of the right and left common carotid artery. |
Countries
Sweden