The purpose of this study is to evaluate the safety, tolerability, and pharmacokinetics of JNJ-63623872 following oral administration of single ascending dose of JNJ-63623872 in healthy Japanese adult participants.
This is a double-blind (test or experiment in which neither the person giving the treatment nor the patient knows which treatment the patient is receiving), placebo-controlled, randomized (study medication assigned to participants by chance) and single-center study of JNJ-63623872. The duration of study will be approximately 5.5 weeks for each ISO per participant. The study consists of 3 parts: Screening Phase (28 days before study commences on Day 1); double-blind Treatment Phase (single oral dose of JNJ-63623872 or placebo on Day 1 under fasted condition); and Follow up Phase (up to 7-10 days after study drug administration). All the eligible participants will be randomly assigned to 1 of 3 groups. The planned doses will be escalated in a stepwise fashion if the safety and tolerability in the preceding dose is found acceptable. Participants in Group 1 will receive JNJ-63623872 300 milligram (mg) or placebo, Group 2 will receive JNJ-63623872 600 mg or placebo and Group 3 will receive JNJ-63623872 1200 mg or placebo. Study drug will be administered following a 10-hour overnight fast. Blood samples will be collected for evaluation of pharmacokinetics at pre-dose and post-dose of study treatment. Pharmacokinetics of JNJ-63623872 will be evaluated primarily. Participants' safety will be monitored throughout the study.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
24
Participants will receive JNJ-63623872 300 mg tablet orally once on Day 1 under fasted conditions.
Participants will receive JNJ-63623872 600 mg (2\*300 mg) tablet orally once on Day 1 under fasted conditions.
Participants will receive JNJ-63623872 1200 mg (4\*300 mg) tablet orally once on Day 1 under fasted conditions.
Unnamed facility
Harrow, United Kingdom
Maximum Plasma Concentration (Cmax) of JNJ-63623872
The Cmax is the maximum observed plasma concentration of JNJ-63623872.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Time to Reach the Maximum Plasma Concentration (Tmax) of JNJ-63623872
The Tmax is the time to reach the maximum observed plasma concentration of JNJ-63623872.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Time of Last Measurable Plasma Concentration (Tlast) of JNJ-63623872
Time of last measurable (non-below quantification limit \[non-BQL\]) plasma concentration.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Area Under the Plasma Concentration-Time Curve From Time 0 to Time of the Last Observed Quantifiable Concentration (AUC [0-last]) of JNJ-63623872
The AUC (0-last) is the area under the plasma JNJ-63623872 concentration-time curve from time 0 to time of the last observed (non-BQL) quantifiable concentration, calculated by linear-linear trapezoidal summation.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Area Under the Plasma Concentration-Time Curve From 0 to Infinite Time (AUC[0-infinity]) Post Dose of JNJ-63623872
The AUC (0-infinity) is the area under the plasma JNJ-63623872 concentration-time curve from time 0 to infinite time, calculated as the sum of AUC (0-last) and C(last)/lambda(z), in which AUC(0-last) is area under the plasma JNJ-63623872 concentration-time curve from time zero to time of the last quantifiable concentration, C(last) is the last observed (non-BQL) quantifiable concentration and lambda(z) is elimination rate constant. Extrapolations of more than 20.00% of the total AUC are reported as approximations.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
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Participants will receive placebo tablet orally once on Day 1 under fasted conditions.
Percentage of Area Under the Plasma Concentration-Time Curve Obtained by Extrapolation (%AUC[infinity,ex])
The %AUC\[infinity,ex\] is calculated by dividing the difference of AUC(0-infinity) and AUC(0-last) by AUC(0-infinity) and then multiplying by 100, (AUC\[0-infinity\] - AUC\[0-last\])\*100/AUC\[0-infinity\].
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Elimination Rate Constant (Lambda [z]) of JNJ-63623872
The Lambda (z) determined by linear regression of the terminal points of the ln-linear plasma concentration-time curve.
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Apparent Terminal Half-life (t[1/2]) of JNJ-63623872
The t(1/2) is defined as 0.693/Lambda (z).
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Total Apparent Clearance (CL/F) of JNJ-63623872
The CL/F is defined as Dose/AUC (0-infinity).
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Apparent Volume of Distribution (Vd/F) of JNJ-63623872
The Vd/F is defined as Dose/\[Lambda (z)\*AUC (0-infinity)\].
Time frame: Pre-dose; 0.5, 1, 1.5, 2, 3, 4, 6, 8, 12, 16, 24, 48, 72 and 96 hours post-dose
Number of Participants with Adverse Events (AEs) and Serious AEs
An adverse event (AE) is any untoward medical occurrence in a participant who received study drug without regard to possibility of causal relationship. A serious adverse event (SAE) is an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly.
Time frame: Screening up to follow-up (7-10 days after dose administration)