A Study of Intravenous and Oral Isavuconazonium Sulfate in Pediatric Patients

Inclusion Criteria: * Subject has sufficient venous access to permit administration of study drug (for the IV cohorts), collection of pharmacokinetic samples and monitoring of safety laboratories. * Female subject must either: * Be of non-childbearing potential: Clearly premenarchal or documented surgically sterile * Or, if of childbearing potential: Agree not to try to become pregnant during the study and for 28 days after the final study drug administration; and have a negative urine or serum pregnancy test at screening; and, if heterosexually active, agree to consistently use 2 forms of highly effective birth control (at least one of which must be a barrier method) starting at screening and throughout the study and for 28 days after the final study drug administration. * Female subject who is of childbearing potential must agree not to breastfeed starting at screening and throughout the study and for 28 days after the final study drug administration. * Female subject who is of childbearing potential must not donate ova starting at screening and throughout the study and for 28 days after the final study drug administration. * Male subject who is of childbearing potential and their female spouse/partner who is of childbearing potential must be using highly effective contraception consisting of 2 forms of birth control (at least one of which must be a barrier method) starting at screening and continue throughout the study, and for 90 days after the final study drug admi…