Rheumatoid arthritis (RA) is a public health issue because of its frequency, its functional consequences, the risk of morbidity and mortality and the costs incurred. A collaborative multiprofessional intervention initiated during hospitalization and continued after hospital discharge (ambulatory care ) would improve medication adherence in RA and therefore the health status of patients. Main objective: To compare, 12 months after the index hospitalization or consultation, the impact of pharmaceutical care provided in multiprofessional collaboration (pharmacist-physician) on medication adherence to disease-modifying treatments of patients with RA compared to usual care without pharmaceutical care and specific multi-professional collaboration. Medication adherence to disease-modifying treatments will be assessed by the rate of coverage of disease-modifying treatments (or Medication Possession Ratio (MPR)). METHODOLOGY: Interventional, multicenter, controlled, randomized, open label study, comparing in parallel 2 groups of patients with rheumatoid arthritis initially hospitalized in a rheumatology department (pharmaceutical care provided in multiprofessional collaboration (pharmacist-physician), initiated in the hospital and continued after hospital discharge (ambulatory care) vs traditional follow-up.