IVIg is a great treatment for anti-HMGCoA antibody necrotizing myopathy. However, traditional treatments like methotrexate, azathioprine, as well as rituximab can be tried. We published a paper on IVIG results on refractory HMGCR and SRP positive patients with excellent results. Kocoloski et al...

The longitudinal case-series published by Dr. @Rohit Aggarwal and his colleagues provided notable quantitative support for useful role of IVIG in immune-mediated necrotizing myositis (IMNM), including the subtypes typically associated with statin-exposures. These data are also echoed by other author...

IVIG.