10. Use within 30 days before the Baseline Visit of: 1) systemic corticosteroids, 2) Ultraviolet light therapy, or 3) systemic anti-inflammatory agents* (e.g., mycophenolate mofetil, sulfasalazine, 6-thioguanine). * Over-the-counter strength non-steroidal anti-inflammatory drugs used for transitional and common aches are permitted during the study.