[Therapeutic Strategy for Multiple Sclerosis Resistant to Standard Treatment: MS Cases When Relapses Cannot be...

Eight disease-modifying drugs have been approved for treating multiple sclerosis in Japan., The drugs show some differences in for the degree to which they prevent relapses; among them, natalizumab and ofatumumab are significantly effective in preventing relapses. If relapses are not suppressed when treated with natalizumab, the presence of anti-natalizumab antibodies should be investigated. When relapses cannot be suppressed with natalizumab, the patient should be treated with ofatumumab and vice versa. If relapses cannot be suppressed with both natalizumab and ofatumumab, then the diagnosis of multiple sclerosis should be thoroughly reassessed. In cases with atypical symptoms and/or exhibiting factors such as multiple sclerosis, oral steroids, and/or immunosuppressive agents can be administered to prevent relapses.