The purpose of this study is to develop a French language version of the Compliance-Questionnaire-Rheumatology for use in French and Francophone rheumatology services

Inclusion Criteria:

• The patient must have given their free and informed consent and signed the consent form
• The patient must be a member or beneficiary of a health insurance plan
• The patient is at least 18 years old
• The patient has rheumatoid polyarthritis as defined by the ACR-EULAR 2010 criteria, treated orally or subcutaneously with MTX for at least 3 months with a stable (unchanged) dosage for at least 1 month, and a stable (unchanged) route of administration for at least 1 month. And no planned change in Methotrexate intake at least until the second study visit. Other treatments at the same time are authorized

Exclusion Criteria:

• The subject is participating in an interventional study, or is in a period of exclusion determined by a previous study
• The subject refuses to sign the consent
• It is impossible to give the subject informed information
• The patient is under safeguard of justice or state guardianship
• The subject has a contraindication to taking methotrexate (including a patient with a desire to become pregnant).

Patients with rheumatoid polyarthritis as defined by the ACR-EULAR 2010 criteria, treated orally or subcutaneously with MTX for at least 3 months being followed in the rheumatology department of Montpellier, Toulouse, Bordeaux or Nîmes hospitals.