CPMC Early Undifferentiated Arthritis Registry

The CPMC early arthritis registry will recruit participants from a population of new patients undergoing evaluation at the office of participating physicians. Patients enrolled in the registry will undergo longitudinal observation and sampling. The investigators will collect questionnaire data and create a biological sample repository. The information obtained will be use to generate hypotheses aimed at explaining how environmental and genetic factors are interrelated to influence UA disease outcomes. Analysis will be performed on the patient's data and biological samples in order to; A. Assess the epidemiological and clinical characteristics of patients with early arthritis in the referral pool at CPMC. B. Analyze the phenotype and genotype of peripheral blood mononuclear cells (PBMC) from individual patients based on their chemokine/cytokine secretion, cell adhesion molecule expression, gene expression, DNA methylation and non coding RNA profiles. C. Generate hypothesis aimed to identify clinical criteria and novel biomarkers to be used in the diagnosis, prognosis, and therapeutic decisions for patients with early UA