This is a prospective, open-label, multicenter study designed to evaluate the early predictive capacity of Tc 99m tilmanocept planar imaging for downstream clinical response(s) in individuals with moderate to severe RA who are candidates for change in anti-TNFα therapy. Temporal (Baseline to 5 week) differences in quantitative imaging will be correlated with longitudinal (Baseline to 12- and 24-week) assessments of clinical RA outcomes to evaluate the clinical utility of Tc 99m tilmanocept for the expedited evaluation of antirheumatic treatment efficacy when compared with longitudinal assessments in clinical practice.
This study will confirm the ability of Tc 99m tilmanocept imaging to predict clinical response in individuals with RA who are beginning anti-TNFα therapy.