The purpose of the study is to investigate the safety, tolerability, and pharmacokinetics of TMC647055 in combination with ritonavir (Part 1); potential pharmacokinetic drug-drug interactions between TMC435 and the combination of TMC647055 with ritonavir; and to evaluate the short-term safety and tolerability when TMC435, TMC647055 and Ritonavir are co-administered (Part 2) in healthy Japanese participants.
This is a single-center study which consists of 2 parts, sequentially conducted in 2 separate panels of 24 healthy adult Japanese participants each. Part 1 is a double-blinded (neither physician nor participant knows the treatment that the participant receives), placebo-controlled (placebo is compared with the study medication to test whether the study medication has a real effect in clinical study), randomized (the study medication is assigned by chance) single ascending dose (SAD) part which will consist of a screening phase, a treatment phase, and a follow-up visit. Part 1 will have 3 cohorts (Cohort A, B, and C) with 8 participants each and they will be randomly assigned to receive either a single oral dose of TMC647055 (6 participants) or placebo (2 participants) in combination with RTV. The study duration for each participant will be approximately 5 weeks from screening to follow-up visit as maximum in Part 1. Part 2 is an open-label, randomized, 3-way crossover part which will consist of a screening phase, 3 treatment phases, and a follow-up phase. Each of the 24 participants will receive Treatment A, B, and C in 6 sequences (Treatment ABC, BCA, CAB, ACB, BAC, and CBA) with a washout period of at least 7 days between consecutive treatments. Safety evaluation will include assessment of adverse events, clinical laboratory tests, vital signs, electrocardiogram, and physical examination. The study duration for each participant will be approximately 10 weeks from screening to follow-up visit as maximum.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
24
TMC647055 150 mg (1 capsule), 450 mg (3 capsules), 600 mg (4 capsules) taken orally (by mouth) once daily on Day 1 in Part 1. TMC647055 450 mg (3 capsules), and 600 mg (4 capsules) taken orally once daily on Days 1 to 7 in Part 2
TMC435 1 capsule of 75 mg, 100 mg, and 150 mg taken orally on Days 1 to 7 in Part 2
Placebo capsule once daily taken orally on Day 1 in Part 1
RTV 30 mg (ie, 0.38 mL oral solution of RTV \[80 mg/mL strength\]) taken orally on Day 1 in Part 1 and on Days 1 to 7 in Part 2
Unnamed facility
Harrow, United Kingdom
Part 1: Number of participants with adverse events following the administration of TMC647055
Assessment will be following single oral doses of TMC647055/Ritonavir 150/30 mg, 450/30 mg and 600/30 mg
Time frame: Up to Day 8
Part 1: Maximum observed plasma concentration of TMC647055
Assessment will be following single oral doses of TMC647055/Ritonavir 150/30 mg, 450/30 mg and 600/30 mg
Time frame: Day 1 (predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16 hours postdose); Day 2 (24 and 36 hours postdose); Day 3; and in case of early withdrawal (once between Day 6 to 8)
Part 1: The actual sampling time to reach the maximum observed plasma of TMC647055
Assessment will be following single oral doses of TMC647055/Ritonavir 150/30 mg, 450/30 mg and 600/30 mg
Time frame: Day 1 (predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16 hours postdose); Day 2 (24 and 36 hours postdose); Day 3; and in case of early withdrawal (once between Day 6 to 8)
Part 1: The actual sampling time of last measurable plasma concentration of TMC647055
Assessment will be following single oral doses of TMC647055/Ritonavir 150/30 mg, 450/30 mg and 600/30 mg
Time frame: Day 1 (predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16 hours postdose); Day 2 (24 and 36 hours postdose); Day 3; and in case of early withdrawal (once between Day 6 to 8)
Part 1: Area under curve (AUC) of TMC647055
AUC from time 0 up to 24 hours after dosing, from time 0 to the time of the last measurable concentration, and from time 0 to infinite time will be assessed. Assessment will be following single oral doses of TMC647055/Ritonavir 150/30 mg, 450/30 mg and 600/30 mg
Time frame: Day 1 (predose, 0.25, 0.5, 0.75, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 16 hours postdose); Day 2 (24 and 36 hours postdose); Day 3; and in case of early withdrawal (once between Day 6 to 8)
Part 2: Maximum observed plasma concentration of TMC435
Assessment will be following TMC435 75 mg co-administered with TMC647055/ritonavir 450/30 mg; TMC435 100 mg co-administered with TMC647055/ritonavir 600/30 mg; and TMC435 150 mg alone
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: The actual sampling time to reach the maximum observed plasma of TMC435
Assessment will be following TMC435 75 mg co-administered with TMC647055/ritonavir 450/30 mg; TMC435 100 mg co-administered with TMC647055/ritonavir 600/30 mg; and TMC435 150 mg alone
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Area under curve (AUC) of TMC435
AUC from time 0 up to 24 hours after dosing will be assessed. Assessment will be following TMC435 75 mg co-administered with TMC647055/ritonavir 450/30 mg; TMC435 100 mg co-administered with TMC647055/ritonavir 600/30 mg; and TMC435 150 mg alone
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Maximum observed plasma concentration of TMC647055
Assessment will be following TMC647055 600 mg co-administered with TMC435 100 mg and ritonavir 30 mg; and TMC647055 450 mg co-administered with TMC435 75 mg and ritonavir 30 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: The actual sampling time to reach the maximum observed plasma of TMC647055
Assessment will be following TMC647055 600 mg co-administered with TMC435 100 mg and ritonavir 30 mg; and TMC647055 450 mg co-administered with TMC435 75 mg and ritonavir 30 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Area under curve (AUC) of TMC647055
AUC from time 0 up to 24 hours after dosing will be assessed. Assessment will be following TMC647055 600 mg co-administered with TMC435 100 mg and ritonavir 30 mg; and TMC647055 450 mg co-administered with TMC435 75 mg and ritonavir 30 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Maximum observed plasma concentration of ritonavir (RTV)
Assessment will be following RTV 30 mg co-administered with TMC435 75 mg and TMC647055 450 mg; and RTV 30 mg co-administered with TMC435 100 mg and TMC647055 600 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: The actual sampling time to reach the maximum observed plasma of ritonavir (RTV)
Assessment will be following RTV 30 mg co-administered with TMC435 75 mg and TMC647055 450 mg; and RTV 30 mg co-administered with TMC435 100 mg and TMC647055 600 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Area under curve (AUC) of ritonavir (RTV)
AUC from time 0 up to 24 hours after dosing will be assessed. Assessment will be following RTV 30 mg co-administered with TMC435 75 mg and TMC647055 450 mg; and RTV 30 mg co-administered with TMC435 100 mg and TMC647055 600 mg
Time frame: Day 1 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 2; Day 5; Day 6; Day 7 (predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12 hours postdose); Day 8; Day 9; Day 10; and end of treatment period or early withdrawal (once between Day 12 to 14)
Part 2: Number of participants with adverse events following the administration of TMC435
Assessment will be following TMC435 75 mg co-administered with TMC647055/ritonavir 450/30 mg; TMC435 100 mg co-administered with TMC647055/ritonavir 600/30 mg; and TMC435 150 mg alone
Time frame: Up to Day 14
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