Rituximab Non-responders do not Benefit from Repeated Treatments


The efficacy of rituximab, a monoclonal antibody directed against CD20 positive B cells, has been demonstrated for the treatment of rheumatoid arthritis (RA) in a number of key studies. However, not all patients respond to therapy. Whether patients with initial non-response may benefit from follow-up treatments (i.e. initial treatment resistance) has not been investigated.

PAD-4 Autoantibodies Identified as a Novel Severity Factor in RA


Antibodies against citrullinated proteins have emerged as powerful diagnostic and prognostic tools in RA that may contribute to the initiation phases of the disease. The enzymes that catalyze the citrullination process, known as peptidyl argenine deiminases (or PADs), may also be involved in the initiation and propagation steps of the RA disease process. Additionally, autoimmunity to these catalysts may identify a subset of RA patients with unique disease phenotypes.

Ocrelizumab, a Humanized Anti-CD20 Monoclonal Antibody, Studied for the Treatment of RA


Anti-B cell therapy with rituximab has been shown to be safe and beneficial for RA treatment.  Rituximab is approved and marketed for the treatment of RA in patients who have failed other therapies.   Ocrelizumab, a fully human monoclonal antibody against CD20, may have less immunogenicity and less complement activation than rituximab which, theoretically, may reduce […]

Immune Tolerance Induced by Chicken Type II Collagen as Treatment for RA


Type II collagen is abundant in the joint and is a major target of immune-mediated damage in RA. As suggested in studies of experimental animals, induction of immune tolerance at the level of the cartilage may be a way of reducing the signs and symptoms of RA and prevent joint destruction. However, whether oral administration of Type II collagen is an efficacious treatment for humans with established active RA has not been established.