Arthritis, Psoriatic

• Encinitas, California, United States
• La Jolla, California, United States
• San Diego, California, United States
• Denver, Colorado, United States

• Birmingham, Alabama, United States
• Huntsville, Alabama, United States
• Los Angeles, California, United States
• San Diego, California, United States

• Pfizer Investigational Site — Toerwang-Samerberg, Germany

• Pfizer Investigational Site — München, Germany

Not specified

• Huntsville, Alabama, United States
• La Jolla, California, United States
• Upland, California, United States
• Aventura, Florida, United States

• Pfizer Investigational Site — Leuven, Belgium

• Pfizer Investigational Site — Camperdown, New South Wales, Australia
• Pfizer Investigational Site — Darlinghurst, New South Wales, Australia
• Pfizer Investigational Site — St Leonards, New South Wales, Australia
• Pfizer Investigational Site — Westmead, New South Wales, Australia

Not specified

• Metro Manila, Philippines