The ABSORB III PK sub-study is a prospective, open-label, non-blinded study enrolling approximately 12 subjects in up to 5 US sites. ABSORB III PK sub-study is a part of ABSORB III RCT (NCT01751906). The objective is to determine the pharmacokinetics of everolimus delivered by the Absorb BVS in a separate and non-randomized cohort of subjects who only receive Absorb BVS with a maximum of two de novo native coronary artery lesions after implantation of the Absorb BVS. Note: The ABSORB III PK subjects will not contribute to the determination of the ABSORB III RCT primary endpoint.
To ensure the PK measurements reflect everolimus exposure due to Absorb BVS only, the PK sub-study will not allow non-target lesion treatment. Blood Sampling Timing: * Pre-Absorb BVS implantation: Baseline o Baseline is defined as prior to implantation of the first Absorb BVS; the blood sample will be drawn on the day of the index procedure either through a heparin lock, venous sheath, or venipuncture. * Post-Absorb BVS implantation: 10 and 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 24 hrs (1 day), 48 hrs (2 days), 72 hrs (3 days), 96 hrs (4 days), 120 hrs (5 days), 168 hrs (7 days), 336 hrs (14 days), and 720 hrs (30 days). * Post-implantation blood samples will be drawn at the time intervals stated above; timing of the post-implantation sampling will begin when the last Absorb BVS is deployed, i.e. last Absorb BVS delivery catheter is removed from the body. Pharmacokinetic (PK) parameters will include time to maximum concentration (tmax); maximum concentration (Cmax); AUC24h: Area under the blood analyte concentration vs. time curve from time 0 up to 24 hours post placement of the last Absorb BVS; AUClast: Area under the blood analyte concentration vs. time curve from time 0 up to the last quantifiable concentration; AUC 0-infinity: Area under the blood analyte concentration vs. time curve from time zero and extrapolated to infinite time; terminal elimination rate constant (λz); terminal elimination half-life (t1/2term); drug clearance (CL).
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
TREATMENT
Masking
NONE
Enrollment
12
* Scaffold diameters: 2.5, 3.0 and 3.5 mm * Scaffold lengths: 8, 12, 18, and 28 mm
Scottsdale Healthcare
Scottsdale, Arizona, United States
Cardiac & Vascular Research Center of Northern Michigan
Petoskey, Michigan, United States
Maximum Concentration (Cmax)
Maximal observed blood analyte concentration. Cmax is the highest blood everolimus concentration reached during the 30 day period of the study after assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation).
Time frame: 0 to 30 days
Time of Maximum (Tmax)
Time to reach the maximal observed blood analyte concentration during the 30 day period of the study after assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation).
Time frame: 0 to 30 days
AUC24h
Area under the blood analyte concentration vs. time curve from time 0 up to 24 hours post placement of the last Absorb BVS. Calculated by the Lin Up Log Down trapezoidal method.
Time frame: 0 to 24 hours
AUC Last
Area under the blood analyte concentration vs. time curve from time 0 up to the last quantifiable concentration reached during the 30 day period of the study. After assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation). Calculated by the Lin Up Log Down trapezoidal method.
Time frame: 0 to 30 days
AUC 0-infinity
AUC 0-infinity: Area under the blood analyte concentration vs. time curve from time zero and extrapolated to infinite time, reached during the 30 day period of the study. After assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation). calculated as: AUC0-∞ = AUClast + (Clast/λz) The percentage of AUC0-∞ obtained by extrapolation (%AUC0-∞ex) is calculated as: %AUC0-∞ex = (AUC0-∞ - AUClast)/ AUC0-∞ \* 100
Time frame: 0 to 30 days
Terminal Elimination Rate Constant (λz)
The apparent terminal elimination rate constant during the 30 day period of the study. After assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation). Determined by linear regression of terminal points of the ln-linear analyte concentration-time curve.
Time frame: 0 to 30 days
Terminal Elimination Half-life (t1/2term)
The apparent terminal elimination half-life, reached during the 30 day period of the study. After assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation). calculated as: t1/2term = 0.693/λz.
Time frame: 0 to 30 days
Drug Clearance (CL)
The systemic drug clearance, reached during the 30 day period of the study. After assessing at different time frames (10 minutes, 30 minutes, 1 hr, 2 hrs, 4 hrs, 6 hrs , 12 hrs, 1 day, 2 days, 3 days, 4 days, 5 days, 7 days, 14 days, and 30 days post implantation). Calculated as: CL = Dose/AUC0 - ∞ .
Time frame: 0 to 30 days
Number of Participants With Target Lesion Failure (TLF)
Target Lesion Failure (TLF) includes Cardiac Death, Target vessel - myocardial infarction and Target Lesion Revascularization (TLR).
Time frame: 0 to 1853 Days
Number of Participants With All Death
All death includes cardiac death, vascular death, and non-cardiac death.
Time frame: 0 to 1853 Days
Number of Participants With All Myocardial Infarction (MI)
All myocardial infarction includes target vessel myocardial infarction (TV-MI) and not attributable to target vessel myocardial infarction (NTV-MI).
Time frame: 0 to 1853 Days
Number of Participants With All Target Lesion Revascularization (TLR)
All target lesion revascularization includes ischemia-driven target lesion revascularization (ID-TLR) and non ischemia-driven target lesion revascularization (NID-TLR).
Time frame: 0 to 1853 Days
Number of Participants With All Target Vessel Revascularization (TVR)
All target vessel revascularization includes ischemia driven target vessel revascularization (ID-TVR) and non ischemia driven target vessel revascularization (NID-TVR).
Time frame: 0 to 1853 Days
Number of Participants With All Revascularization
All revascularization includes ischemia driven revascularization and non ischemia driven revascularization.
Time frame: 0 to 1853 Days
Number of Participants With Acute Stent/Scaffold Thrombosis (Definite/Probable)
Scaffold/Stent thrombosis should be reported as a cumulative value at the different time points and with the different separate time points. Time 0 is defined as the time point after the guiding catheter has been removed and the subject left the catheterization lab. Timings: Acute scaffold/stent thrombosis : 0 - 24 hours post stent implantation Subacute scaffold/stent thrombosis: \>24 hours - 30 days post stent implantation Late scaffold/stent thrombosis: 30 days - 1 year post stent implantation Very late scaffold/stent thrombosis: \>1 year post stent implantation
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Time frame: ≤ 1 day
Number of Participants With Subacute Stent/Scaffold Thrombosis (Definite/Probable)
Scaffold/Stent thrombosis should be reported as a cumulative value at the different time points and with the different separate time points. Time 0 is defined as the time point after the guiding catheter has been removed and the subject left the catheterization lab. Timings: Acute scaffold/stent thrombosis : 0 - 24 hours post stent implantation Subacute scaffold/stent thrombosis: \>24 hours - 30 days post stent implantation Late scaffold/stent thrombosis: 30 days - 1 year post stent implantation Very late scaffold/stent thrombosis: \>1 year post stent implantation
Time frame: >1 to 30 days
Number of Participants With Late Stent/Scaffold Thrombosis (Definite/Probable)
Scaffold/Stent thrombosis should be reported as a cumulative value at the different time points and with the different separate time points. Time 0 is defined as the time point after the guiding catheter has been removed and the subject left the catheterization lab. Timings: Acute scaffold/stent thrombosis : 0 - 24 hours post stent implantation Subacute scaffold/stent thrombosis: \>24 hours - 30 days post stent implantation Late scaffold/stent thrombosis: 30 days - 1 year post stent implantation Very late scaffold/stent thrombosis: \>1 year post stent implantation
Time frame: 31 to 393 days
Number of Participants With Cumulative Stent/Scaffold Thrombosis (Definite/Probable)
Scaffold/Stent thrombosis should be reported as a cumulative value at the different time points and with the different separate time points. Time 0 is defined as the time point after the guiding catheter has been removed and the subject left the catheterization lab. Timings: Acute scaffold/stent thrombosis : 0 - 24 hours post stent implantation Subacute scaffold/stent thrombosis: \>24 hours - 30 days post stent implantation Late scaffold/stent thrombosis: 30 days - 1 year post stent implantation Very late scaffold/stent thrombosis: \>1 year post stent implantation
Time frame: 0 to 1853 Days