Successful isavuconazole salvage therapy in a patient with invasive mucormycosis.

A 45-year-old male with rhinocerebral mucormycosis (Rhizopus oryzae), refractory to liposomal amphotericin B and posaconazole, received isavuconazole salvage therapy. Initial isavuconazole plasma and tissue levels were 0.76-0.86 μg/mL and 1.09-1.38 μg/g. Plasma levels increased to 1.3-3.24 μg/mL with reduced comedication. Isavuconazole was well tolerated, and the patient has remained disease-free 24 months post-antifungal therapy.