- Acceptable stable treatments during study: oral glucocorticoids (less than or equal to 10 mg/d) and/or NSAIDs at recommended doses and/or one of the following options: methotrexate (less than or equal to 20.0 mg/week); sulfasalazine (less than or equal to 3 grams/d); azathioprine (less than or equal to 2 mg/kg/d); methotrexate and sulfasalazine combination at doses listed above; 6-mercaptopurine (less than or equal to 1.5 mg/kg/d)