HMGCR and myopathy: Figure 2 also shows that corticosteroid-free induction was used in 56% (n = 5/9) in the early treatment cohort, versus 8% (n = 1/13) in the delayed treatment cohort (P = 0.023), indicating that patients with anti-HMGCR myopathy with normal strength were candidates for corticosteroid-free induction.