This is a multicenter, non-randomized, single-dose, open-label study conducted in male and surgically sterile or post-menopausal female participants with stable chronic hepatic impairment and in healthy participants matched by age, gender, and body weight to assess the effect of hepatic impairment on the pharmacokinetics of alectinib.
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
28
Participants will receive alectinib as per the dosage schedule mentioned in arm description.
Pharmaceutical Research Associates CZ, s.r.o.
Prague, Czechia
Summit Clinical Research s.r.o.; Oddelenie internej mediciny a klinickej farmakologie
Bratislava, Slovakia
Maximum Observed Plasma Concentration (Cmax) of Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Cmax of Unbound Alectinib
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Area Under the Plasma Concentration-Time Curve From Time 0 Extrapolated to Infinity (AUC 0-inf) for Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins. AUC 0-inf = Area under the plasma concentration versus time curve (AUC) from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-inf for Unbound Alectinib
AUC 0-inf = AUC from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Area Under the Plasma Concentration-Time Curve From Time 0 to the Last Measureable Concentration (AUC 0-last) for Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-last for Unbound Alectinib
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
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Cmax of Total Metabolite of Alectinib (M4)
Total M4 = unbound M4 plus M4 bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Cmax of Unbound M4
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Cmax of Total Combined Alectinib and M4 (Alectinib + M4)
Total alectinib + M4 = unbound alectinib + M4 plus alectinib + M4 bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Cmax of Unbound Alectinib + M4
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-inf of Total M4
Total M4 = unbound M4 plus M4 bound to plasma proteins. AUC 0-inf = AUC from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-inf of Unbound M4
AUC 0-inf = AUC from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-inf of Total Alectinib + M4
Total alectinib + M4 = unbound alectinib + M4 plus alectinib + M4 bound to plasma proteins. AUC 0-inf = AUC from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-inf of Unbound Alectinib + M4
AUC 0-inf = AUC from time zero (pre-dose) to extrapolated infinite time (0-inf). It is obtained from AUC 0-t plus AUC t-inf.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-last of Total M4
Total M4 = unbound M4 plus M4 bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-last of Unbound M4
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-last of Total Alectinib + M4
Total alectinib + M4 = unbound alectinib + M4 plus alectinib + M4 bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
AUC 0-last of Unbound Alectinib + M4
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Time to Reach Maximum Observed Plasma Concentration (Tmax) for Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Tmax for Total M4
Total M4 = unbound M4 plus M4 bound to plasma proteins
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Apparent Terminal Half-life (t1/2) of Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins. t1/2 = the time measured for the plasma concentration to decrease by one half.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
t1/2 of Total M4
Total M4 = unbound M4 plus M4 bound to plasma proteins. t1/2 = the time measured for the plasma concentration to decrease by one half.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Apparent Oral Clearance (CL/F) of Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins. Clearance is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the oral bioavailability.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
CL/F of Unbound Alectinib
Clearance is a measure of the rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose (apparent oral clearance) is influenced by the oral bioavailability.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Apparent Volume of Distribution (Vz/F) for Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins. Volume of distribution is defined as the theoretical volume which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose is influenced by the fraction absorbed.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Vz/F for Unbound Alectinib
Volume of distribution is defined as the theoretical volume which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution after oral dose is influenced by the fraction absorbed.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)
Fraction of Drug Unbound (fu) of Total Alectinib
Total alectinib = unbound alectinib plus alectinib bound to plasma proteins. fu = ratio of unbound alectinib to total alectinib multiplied by 100.
Time frame: Predose (0 hour), and at 1, 2, 4, 6, 8, 10, 12, 18, 24, 36, 48, 72, 96, 120, 144, 168, 192, 216, and 240 hours postdose (Dosing day = Day 1)