PT - JOURNAL ARTICLE AU - Oswaldo Castaneda AU - M Gopal Nair TI - Controlled trial of methotrexate versus CH-1504 in the treatment of rheumatoid arthritis. DP - 2006 May 01 TA - The Journal of Rheumatology PG - 862--864 VI - 33 IP - 5 4099 - http://www.jrheum.org/content/33/5/862.short 4100 - http://www.jrheum.org/content/33/5/862.full SO - J Rheumatol2006 May 01; 33 AB - OBJECTIVE: To investigate the clinical efficacy, safety, tolerability, and toxicity profile of a metabolically stable antifolate, CH-1504, compared to methotrexate (MTX) in the treatment of rheumatoid arthritis (RA). METHODS: A 24-week open-label trial of MTX and CH-1504 was performed in 20 patients with RA. RESULTS: Improvements in clinical and laboratory indicators were observed in both study groups. Improvement in the CH-1504 group was greater than in the MTX group. Both treatments were generally well tolerated; however, the liver function test abnormalities and gastrointestinal related adverse events expected with this class of medication were not seen with CH-1504. CONCLUSION: CH-1504 appears to be clinically efficacious and may possess a superior safety and tolerance profile compared to MTX.