The purpose of this study is to assess the absolute bioavailability of oral PCI-32765 and the effect of grapefruit juice on the absorption of PCI-32765 in healthy adult participants.
This is an open-label (identity of assigned study drug will be known), sequential and 2-way crossover design, pharmacokinetic (study of what the body does to a drug) study to assess the absolute bioavailability of oral (by mouth) PCI-32765 and the effect of grapefruit juice on the absorption of PCI-32765 in approximately 8 healthy adult participants. The duration of the study is approximately 45 days (screening, treatment, and follow-up). All patients will receive PCI-32765 560 mg (Treatment A) administered by mouth in the first period and Treatment B (560 mg administered by mouth without grapefruit juice) and Treatment C (140 mg administered by mouth with grapefruit juice) according to a randomization schedule in Periods 2 and 3. Participants will fast overnight for at least 10 hours prior to study drug dosing. Participants will stay in the study center for pharmacokinetic sampling. Serial pharmacokinetic samples will be collected before dosing and over 72 hours after dosing and safety will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
8
560 mg capsules administered by mouth on Day 1, Period 1
560 mg capsules administered by mouth (without grapefruit juice) on Day 1 during Period 2 or 3 according to randomization schedule
140 mg capsule administered by mouth (with grapefruit juice) on Day 1 during Period 2 or 3 according to randomization schedule
Unnamed facility
Merksem, Belgium
Area under the plasma concentration-time curve from time 0 to 24 hours of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to time of the last quantifiable concentration of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Area under the plasma concentration-time curve from time 0 to infinite time of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Absolute bioavailability of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Maximum observed plasma concentration of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Time to reach the maximum plasma concentration of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
Elimination half-life of PCI-32765
Time frame: Predose, and postdose at 30 min, 1 h, 1.5 h, 2 h, 2 h 2 min, 2 h 5 min, 2.2 h, 2.25 h, 2.5 h, 3 h, 3.5 h, 4 h, 5 h, 6 h, 8 h, 12 h, 16 h, 24 h, 36 h, 48 h, 72 h
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100 mcg administered intravenously 2 h after study drug
Number of participants affected by an adverse event
Time frame: Up to 30 days after the last dose of study medication