Purpura, Thrombocytopenic, Idiopathic

• Peking University Insititute of Hematology, Peking University People's Hospital — Beijing, Beijing Municipality, China
• Beijing Tongren hospital — Beijing, Beijing Municipality, China
• Department of Hematology, Beijing Friendship Hospital, Capital Medical University — Beijing, China
• Department of Hematology, Beijing Hospital — Beijing, China

• Georgetown Lombardi Comprehensive Cancer Center — Georgetown, District of Columbia, United States
• Massachusetts General Hospital - Cancer Center — Boston, Massachusetts, United States
• University of Pittsburgh Medical Center (UPMC) Hilman Cancer Center — Pittsburgh, Pennsylvania, United States
• Essen University Hospital Department of Hematology — Essen, Germany

• Novartis Investigative Site — Krasnodar, Russia
• Novartis Investigative Site — Moscow, Russia
• Novartis Investigative Site — Saint Petersburg, Russia

• GSK Investigational Site — Gifu, Japan
• GSK Investigational Site — Hiroshima, Japan
• GSK Investigational Site — Ibaraki, Japan
• GSK Investigational Site — Osaka, Japan

• Department of Hematology, Ospedale San Bortolo — Vicenza, Italy

• Pacific Cancer Medical Center, Inc — Anaheim, California, United States
• Comprehensive Blood and Cancer Center — Bakersfield, California, United States
• Bay Area Cancer Research Group, LLC — Concord, California, United States
• Pacific Coast Hematology/Oncology Medical Group Inc. — Fountain Valley, California, United States

• GSK Investigational Site — Overland Park, Kansas, United States

• Qilu hospital, Shandong University — Jinan, Shandong, China

Not specified

• CHRU de Brest — Brest, France