 22. Subjects on aminosalicylates, or Crohns-related antibiotics fluoroquinolones such as ciprofloxacin or nitroimidazole derivatives such as metronidazole that had not been on stable doses of these medications for at least 4 weeks prior to Baseline. In addition, subjects on aminosalicylates or Crohns-related antibiotic treatments who had discontinued these medications within four weeks of Baseline. 