Bioequivalence study is proposed to be carried out on patients of breast cancer/ ovarian cancer, who are administrated for Doxorubicin Hydrochloride Liposomal Injection Lipodox® or Caelyx® in a dose of 50 mg/m2.
This study is a randomized, open-label, single-dose, two-preparation, two-sequence, two-cycle crossover bioequivalence study. This study will be conducted in female subjects aged 18 to 75 years diagnosed with breast cancer/ ovarian cancer. Each subject will be randomized to two treatment sequences (RT or TR) with equal numbers of patients according to a randomization scheme prepared to start of the trial. The cleaning period was 28-42 days. Serial blood samples for determination of free and liposomal encapsulated doxorubicin plasma concentration for PK analysis will be obtained in each cycle. Blood samples to be obtained at 0 h (within 60 min) before infusion, 15 min, 30 min, 45 min, 60 min, 75 min, 90min after the beginning of infusion, 15 min, 30 min, 1.0 h, 3.0 h, 5.0 h, 8.0 h, 16.0 h, 24.0 h, 36.0 h, 48.0 h, 96.0 h, 168.0 h, 240.0 h, 336.0 h after infusion completed.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
80
50mg/m2, intravenous drip on Day 1 of each cycle. On Day 1 of Cycle 1 patients will receive either reference or test product. On Day 1 of Cycle 2, patients will crossover to the alternate reference or test formulation. To measure pharmacokinetic paratemers of Caelyx® versus Lipodox®.
Sun Yat-Sun Memorial Hospital, Sun Yat-Sun University
Guangzhou, Guangdong, China
RECRUITINGCmax
Maximum observed plasma concentration
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
AUC[0-t]
Area under the plasma concentration-time curve from time 0 to last time of quantifiable concentration
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
AUC[0-∞]
Area under the plasma concentration-time curve from 0 extrapolated to infinite time
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
AUC[0-48hours]
Area under the plasma concentration-time curve from time of intake until 48hours post-dose
Time frame: Pre-dose (within 60 minutes) , 15, 30, 45, 60, 75, 90minutes after the beginning of infusion, 15 minutes, 30 minutes, 1, 3, 5, 8, 16, 24, 36, 48hours after infusion completed
AUC[48hours-t]
Area under the plasma concentration-time curve from time of 48hours post-dose until the 336hours posy-dose
Time frame: 48hours post-dose to the 336hours post-dose
Tmax
Time to reach the maximum observed plasma concentration
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
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λz
Elimination rate constant
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
t1/2z
Elimination half-life
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15minutes, 30minutes, 1,3,5,8,16,24,36,48,96,168,240,336hours after infusion completed
AUC_%Extrap
Percentage of remaining area,Calculate as \[(AUC\[0-∞\]- AUC\[0-t\])/ AUC\[0-∞\]\]×100%
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90minutes after the beginning of infusion, 15 minutes, 30 minutes, 1,3,5,8,16,24,36,48,96,168,240,336 hours after infusion completed
CL/F
Apparent clearance
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90 minutes after the beginning of infusion, 15 minutes, 30 minutes, 1,3,5,8,16,24,36,48,96,168,240,336 hours after infusion completed
Vd/F
Apparent volume of distribution
Time frame: Pre-dose (within 60 minutes), 15,30, 45,60,75,90 minutes after the beginning of infusion, 15 minutes, 30 minutes, 1,3,5,8,16,24,36,48,96,168,240,336 hours after infusion completed