Phase III Clinical Trial of NPB-01 in Patients With Guillain-Barré Syndrome

Inclusion Criteria: 1. In principle, patients are able to receive study drug within 2weeks(with limits of 4weeks) from the start of symptoms. 2. Patients with predominant motor neuropathy and Hughes's Functional Grade(FG) is grade4 or grade5(in this regard, if symptoms is progressive, patients with FG is grade3 involve in this study). 3. Patients with plasmapheresis, steroids(in prednisolone equivalent, more than 100mg/day) and immune globulin therapy is no operation for this onset. 4. Patients with greater than or equal to 18 years old at informed consent. Exclusion Criteria: 1. Patients with history of shock for NPB-01. 2. Patients with history of hypersensitivity for NPB-01. 3. Patients with history of volatile organic solvent abuse, abnormal porphyrin metabolism, history of pharynx or cutaneous diphtheria, plumbism, tephromyelitis, botulism, hysterical paralysis, toxic neuropathy(nitrofurantoin, dapsone, organophosphorous compound), serious diabetic neuropathy,peripheral neuropathy due to HIV,impaired peripheral neuropathy except Guillain-Barré syndrome. 4. Patients with malignancy at informed consent. 5. Patients treated with immune globulin at 8 weeks before informed consent. 6. Patients with IgA deficiency. 7. Patients with impaired liver function. 8. Patients with impaired renal function. 9. Patients with cerebro- or cardiovascular disorders. 10. Patients with high risk of thromboembolism. 11. Patients with hemolytic/hemorrhagic anemia. 12. Patients with decreased cardiac function. 13. Patients with decreased platelet.