Validation of the French Version of the CQR (Compliance Questionnaire Rheumatology)

Inclusion Criteria:

• The patient must have given their free and informed consent and signed the consentform

• 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 ofadministration for at least 1 month. And no planned change in Methotrexate intake atleast 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 ofexclusion 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 witha desire to become pregnant).