RT Journal Article SR Electronic T1 Inhibitors of tumor necrosis factor: New treatment options for rheumatoid arthritis JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 367 OP 374 VO 66 IS 6 A2 Donald G. Vidt A1 Larry W. Moreland YR 1999 UL http://www.ccjm.org/content/66/6/367.abstract AB Infliximab and etanercept, both approved by the FDA in 1998, are examples of a new class of disease-modifying antirheumatic drugs that interfere with the action of tumor necrosis factor alpha, one of the key cytokines that promote inflammation. Infliximab is approved for Crohn disease and etanercept for rheumatoid arthritis. Both show promise in treating rheumatoid arthritis, although the long-term risks and benefits of these drugs are not yet known.