Arthritis, Rheumatoid

• Aclaris Investigational Site — El Cajon, California, United States
• Aclaris Investigational Site — Encino, California, United States
• Aclaris Investigational Site — La Jolla, California, United States
• Aclaris Investigational Site — Palm Desert, California, United States

• Catalina Pointe Clinical Research, Inc. — Tucson, Arizona, United States
• C. Michael Neuwelt, MD, Inc. — San Leandro, California, United States
• Javed Rheumatology Associates, Inc. — Newark, Delaware, United States
• Allergy, Asthma, Arthritis, and Lung Center — Daytona Beach, Florida, United States

• Jingjing Li — Shenzhen, Guangdong, China

• Soonchunhyang University Cheonan Hospital, Department of Rheumatology — Chunan-si, Chungcheongnam-do, South Korea
• Keimyung University Dongsan Medical Center — Jung-Gu, Daegu, South Korea
• Kongyang University Hospital / Rheumatology — Seogu, Daejon, South Korea
• Myongji Hospital / Rheumatology — Goyang-si, Deogyang-gu, South Korea

• Department of Rheumatology and Immunology, Peking University People's Hospital — Beijing, Beijing Municipality, China

• Comac Medical Ltd — Sofia, Bulgaria
• ICS ARENSIA Exploratory Medicine SRL, a daughter company of ARENSIA Exploratory Medicine GmbH,Republican Clinical Hospital — Chisinau, Moldova

• Pfizer Investigational Site — Ehime, Japan
• Pfizer Investigational Site — Fukui, Japan
• Pfizer Investigational Site — Kanagawa, Japan
• Pfizer Investigational Site — Miyagi, Japan

• McGill University Health Centre — Montreal, Quebec, Canada

Not specified

• CHRU de Brest — Brest, France