The purpose of this study is to evaluate the pharmacokinetic properties of isavuconazole (BAL4815) and the cleavage product (BAL8728) and assess the safety and tolerability after single-dose and steady state (multiple-dose) administration of isavuconazole BAL8557 in healthy Chinese subjects.
This is a two part study: Part 1: On Day 1, Period 1, subjects will receive a single dose of isavuconazole orally or intravenously according to the treatment sequence allocation. Subjects will remain resident in the unit in order to collect blood for pharmacokinetics (PK) and to assess the safety tests. They will be released in the morning of Day 15 after collection of blood for safety tests. Subjects will have a washout period of 2 weeks returning to the unit for Day -1 of Period 2 (Day 29). Subjects will receive a single dose of isavuconazole orally or intravenously (opposite mode of administration from Period 1). Subjects will remain resident in the unit and will be released in the morning of Day 15, Period 2 (Day 44) after collection of blood for tests. Part 2: Subjects will be allocated to multiple intravenous (IV) (Group 1) or oral (Group 2) dosing. On Day 1, Group 1 will receive multiple intravenous (IV) dosing of isavuconazole as a 2-hour infusion, three times a day (TID) with 8 hours between doses for 2 days followed by isavuconazole as a 2-hour infusion every day (QD) for 10 days. Group 2 will receive multiple oral (PO) dosing of isavuconazole TID with 8 hours between doses for 2 days followed by isavuconazole PO QD for 10 days. Subjects in Group 1 and 2 will remain resident in the unit in order to collect blood and urine for PK evaluations and to assess the safety tests. They will be released in the morning of Day 26 after collection of blood for tests.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
NONE
Enrollment
36
oral
intravenous (IV)
Huashan Hospital
Shanghai, China
Composite of pharmacokinetics of isavuconazole in plasma (Part 1): Cmax, AUClast, AUCinf, AUC24, tmax, t1/2, CL/F, Vz/F, F, MRT, CLtot, and Vz
Cmax, AUC from the time of dosing to the last quantifiable concentration (AUClast), AUC from time 0 extrapolated to infinity (AUCinf), AUC from time 0 to 24 hours (AUC24), Time to attain Cmax (tmax), Apparent Terminal Elimination Half-Life (t1/2), Apparent body clearance after extravascular dosing (CL/F), Apparent volume of distribution during the terminal phase after single or repeated extravascular dosing (Vz/F), Bioavailability (F), Mean residence time (MRT), Total body clearance after intravenous (IV) dosing (CLtot), Volume of distribution during the terminal phase after IV dosing (Vz)
Time frame: Day 1 to Day 15 in each treatment period (19 time points)
Composite of pharmacokinetics of isavuconazole in plasma (Part 2): Cmax, Cmin, AUCtau, tmax, t1/2, CL/F, Vz/F, PTR, CLtot, MRT, and Vss
Cmax, Minimum observed concentration (Cmin), AUC during the time interval between consecutive dosing (AUCtau), Time to attain Cmax (tmax), Apparent Terminal Elimination Half-Life (t1/2), Apparent body clearance after extravascular dosing (CL/F), Apparent volume of distribution during the terminal phase after single or repeated extravascular dosing (Vz/F), Peak trough fluctuation within one dosing interval at steady state (PTR), Total body clearance after intravenous (IV) dosing (CLtot), Mean residence time (MRT), Volume of distribution at steady state determined after IV dosing (Vss)
Time frame: Day 1 to Day 26 (33 time points)
Composite of pharmacokinetics of isavuconazole in urine (Part 2): Cumulative amount of drug excreted over the time interval between consecutive dosing (Aetau), Fraction of Aetau (Aetau %), Renal clearance (CLR)
Time frame: Day 12 (2 time points)
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