According to a study presented this week at the annual meeting of the American College of Rheumatology, researchers in Spain recently analyzed BIOBADASER, a drug registry established in 2001 for the purpose of tracking the safety of biologics used to treat arthritis. As of December 2007, the registry included 4,529 patients with rheumatoid arthritis who had been treated with TNF-alpha blockers. Researchers compared the group to a second control group of patients with rheumatoid arthritis (not treated with TNF-alpha blockers) to assess the incidence of cancer. Researchers found that the incidence of developing cancer in the group treated with TNF-alpha blockers was very close to that of the control group not treated with TNF-alpha blockers and concluded there was no increased risk associated with TNF blockers.
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