Study Evaluating the Tolerance and Safety of Enbrel (Etanercept) in Adults and Children

Inclusion Criteria: * Inclusion in this study will be as per the approved indications in the package insert. * Patients with moderately to severely active RA. * Children with JRA who have had an inadequate response to one or more DMARDs. Exclusion Criteria: * Known hypersensitivity to etanercept or any of its components. * Known significant concurrent medical disease, including: * Congestive heart failure, uncontrolled angina pectoris, recent history of myocardial infarction * Cancer or history of cancer * Active infection * Sepsis or risk of sepsis * Active tuberculosis or a past history of tuberculosis * Pancytopenia * Females who are pregnant, breast feeding or at risk of pregnancy and not using a medically acceptable form of contraception. * Patients who are planning to undergo elective surgery during the study period.