The purpose of this study is to evaluate the effects of abiraterone on the pharmacokinetics (study of what the body does to a drug) of pioglitazone when coadministered with abiraterone acetate in healthy adult male participants.
This is an open-label (identity of assigned study drug will be known) single-dose drug-drug interaction study to assess the effect of abiraterone on pioglitazone. Approximately 16 healthy adult male participants will be enrolled in this study. The study consists of a screening phase, an open-label treatment phase consisting of 2 single-dose treatment periods, end-of-study or withdrawal assessments done upon completion of the 72-hour pharmacokinetic sampling on Day 11 of Period 2 or upon withdrawal, and a follow-up visit 5 to 7 days after the last study procedure. The total study length is 32 days. Participants will receive pioglitazone alone on Day 1 (Period 1) of the study. On Day 8 (Period 2), participants will receive a single dose of abiraterone acetate followed by a single dose of pioglitazone one hour later. Successive pioglitazone administrations will be separated by a washout period of 7 days. Participants will be confined to the study center from Day -1 to Day 4 of Period 1 and from Day 7 to Day 11 of Period 2, at least 10 hours before each study drug administration until completion of the 72-hour blood sample collection for each period. A pharmacogenomic blood sample will be collected from all participants on Day -1. Safety will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
16
15 mg tablet administered by mouth on Day 1, and Day 8 1 hour after study drug administration
1000 mg tablets administered by mouth on Day 8
Unnamed facility
Merksem, Belgium
Maximum observed plasma concentration of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Time to reach the maximum observed plasma concentration of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to time of the last observed quantifiable concentration of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to infinite time of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Percentage of area under the plasma concentration time curve obtained by extrapolation of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Elimination half-life associated with the terminal slope of the semilogarithmic drug concentration-time curve of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Time to last observed quantifiable plasma concentration of pioglitazone
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Maximum observed plasma concentration of abiraterone
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Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Time to reach the maximum observed plasma concentration of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to time of the last observed quantifiable concentration of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to infinite time of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Percentage of area under the plasma concentration-time curve obtained by extrapolation of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Elimination half-life associated with the terminal slope of the semilogarithmic drug concentration-time curve of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Time to last observed quantifiable plasma concentration of abiraterone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Apparent total plasma clearance of drug after extravascular administration of pioglitazone
Time frame: Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Metabolite to parent drug ratio for maximum observed plasma concentration
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Metabolite to parent drug ratio for area under the plasma concentration time curve from time 0 to time of the last observed quantifiable concentration
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Metabolite to parent drug ratio for area under the plasma concentration time curve from time 0 to infinite time
Time frame: Day 1 and Day 8 predose, and postdose at 30 min, 1 h, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 36 h, 48 h, 72 h
Number of participants affected by adverse events by MedDRA system organ class (SOC) and Preferred term (PT)
Time frame: Up to 30 days after the last dose of study medication