LONDON: Ultomiris (ravulizumab) has been approved in Japan for the treatment of adult patients with generalised myasthenia gravis (gMG) who are anti-acetylcholine receptor (AChR) antibody-positive and whose symptoms are difficult to control with high-dose intravenous immunoglobulin therapy (IVIg) or plasmaphaeresis. Japan’s Pharmaceuticals and Medical Devices Agency also indicated that Ultomiris can be considered for patients who cannot receive high-dose…