Rheumatoid arthritis (RA) is an autoimmune, chronic inflammatory disease and TNF-alpha has been recognized as a triggering cytokine in the induction of joints inflammation and is involved in the pathogenesis of RA.||Treatment for RA aims to reduce disease activity, prevent or manage joint deterioration and lower the risk of major comorbidities such as heart disease and stroke.||The strategy of targeting cytokines has significantly increased RA patient outcomes. Therefore management with biological disease-modifying antirheumatic drugs "bDMARD" (Etanercept, Infliximab, Adalimumab) should be considered, If the treatment goal is not met with the first conventional synthetic drug modifying antirheumatic drugs (csDMARD) strategy, or if there are poor prognostic factors.||The multi-biomarker disease activity test could be used to help standardise individual treatment decisions, especially in patients who failed to respond well to the traditional treatment.||Iraq does not currently have specific guidelines, which might pose a risk to patients' safety. More data about the choice of bDMARD is needed in terms of tracking therapeutic response, or whether TNF or other pro-inflammatory cytokines like interleukin-6 (IL-6) is the main factor for the development and severity of RA.||These data are important to improve the overall status of the patient, better choice of treatment and biomarkers to detect.||There is limited information on the treatment patterns of rheumatoid arthritis (RA) across Iraq including the Kurdistan Region. Therefore, the aim of this research is to evaluate the efficacy, and clinical responses of RA patients who have been treated with different anti-TNF, as well as on answering the research hypothesis, Can plasma TNF-alpha and IL-6 be used as markers of therapeutic response to TNF alpha antagonist in patients with RA?