A Study to Validate Questionnaires FLARE and OM-RA-FLARE Measuring Disease Flares in Patients With Rheumatoid Arthritis.

There will be 6 months of follow up including 3 medical visits for each patients:

• M0 (medical visit for inclusion)
• follow up between M0 - M3
• M3 (medical visit at 3 months after inclusion)
• follow up between M3 - M6
• M6 (medical visit at 6 months after inclusion)

At the inclusion visit (M0), after the verification of inclusion and non-inclusion criteria, the following information will be collected:

• Socio-demographical data : age, sex, level of education (primary, secondary, college, university), occupational category (INSEE in 6 categories)
• Items of the ACR 1987 and ACR/EULAR 2010;
• Length of the RA
• Erosive or not (presence Yes / no)
• IgM rheumatoid factor (presence Yes / No)
• Anti CCP antbodies (presence Yes / No)

During follow-up visits (M3 and M6), the elements collected are:

• by the study technician (TEC)

• the inflammatory activity index, evaluated by patient (RAPID-3);
• the functional limitations index (HAQ);
• the PASS questionnaire;
• the OM-RA-FLARE questionnaire;
• the FLARE questionnaire.
• by the doctor :

• elements of DAS 28, this includes a blood test that will be done in the city or in the hospital ;
• the doctor's decision at the end of the consultation, in terms of :

• DMRADs: continuing the treatment, decreasing or increasing the dose, changing it due to its ineffectiveness, changing it due to patients' intolerance.
• Symptomatic treatments: continuing corticosteroids, increase the dose of corticosteroids, corticosteroid infiltration.

Inclusion criteria

• Age ≥ 18 years;
• Having Rheumatoid Arthritis (RA) since more than 6 months, meeting the ACR 1987 and the ACR / EULAR 2010;
• Treatment of RA:

• Treatment of disease modifying anti-rheumatic drugs (DRMADs) or biological treatment stable for more than 2 months;
• Symptomatic treatment (including corticosteroid) stable for more than 2 months;
• Receive the medical exam first;
• Agreed and signed the informed consent form;
• Ability to comply with the study protocol;
• Having the social insurance coverage

Exclusion criteria

• Patients undergoing surgery during the study period;
• Patients without any affiliation to a social security coverage (or entitled beneficiary);
• Patients under guardianship or trusteeship.