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Sponsor: University Hospital, Tours
Conditions: Rheumatoid Arthritis
Interventions: adalimumab
Countries: France
Adalimumab is a fully human monoclonal antibody to tumor necrosis factor-alpha (TNF-α) approved in rheumatoid arthritis (RA) refractory to disease modifying anti rheumatic drugs (DMARDs) and for the treatment of severe, active and progressive RA in adults not previously treated with methotrexate. However, almost one third of patients have no response and approximately 15% develop antibodies towards adalimumab (ATA) after a 6 month course of treatment. There is a relationship between adalimumab concentration and clinical response obtained after 6 month of treatment. Furthermore adalimumab concentration measured 3 months after initiation seems to predict the clinical response at 6 months. There is an important inter individual pharmacokinetic variability of adalimumab. Side effects may occur at the recommended dose and more than 3 months of treatment are generally required to estimate the clinical response. A therapeutic drug monitoring could help clinicians to early adjust the dose to optimize the response and to avoid dose related side effects. To date there is no definite adalimumab target concentration predictive of the clinical response to allow such a pharmacologic monitoring.
Sex: ALL
Age: 18 Years to —
Healthy volunteers: No
Study type: INTERVENTIONAL
Inclusion Criteria: * RA according to the American College of Rheumatology (ACR) 1987 criteria * Treatment with Adalimumab has been chosen by the physician / patient * Treatment given in accordance to the SPC * Stable Disease modifying anti rheumatic drugs (DMARDs) and glucocorticoids 4 weeks before enrollment and during the study period. * Signed consent Exclusion Criteria: * more than one previous treatment with anti TNF-alpha * Past history of malignancy, AIDS * Pregnancy * Change in DMARDS or glucocorticoid dose 4 weeks before entering the study * Active or latent tuberculosis, other active infections * Surgery scheduled during the study period
- Brest, France
- Le Mans, France
- Nantes, France
- Orléans, France
- Poitiers, France
- Rennes, France
- Tours, France