Reactive Arthritis

Research Progress Related to Reactive Arthritis

Investigators at institutions across the country, many supported by the National Institutes of Health, are working to understand how reactive arthritis arises and to develop new treatment strategies.

Current research efforts include the following.

• Investigators are searching for clues to how infection with certain bacteria, such as Chlamydia or Yersinia, activates inflammatory pathways that lead to reactive arthritis.
• A small number of people get reactive arthritis following infection with certain bacteria, while most people do not develop the condition. By studying data from patient registries, researchers are seeking to identify genetic and environmental factors that contribute to raising a person’s risk of reactive arthritis.
• Scientists are testing the effectiveness of drugs called biologic response modifiers in people who do not respond to other therapies. These medications block the activity of specific immune molecules, helping to decrease or stop inflammation.