DynamX Sirolimus Study Sirolimus Eluting Coronary Bioadaptor System
Primary Purpose
Coronary Artery Disease
Status
Completed
Phase
Not Applicable
Locations
New Zealand
Study Type
Interventional
Intervention
DynamX Sirolimus-eluting Coronary Bioadaptor System
Sponsored by

About this trial
This is an interventional treatment trial for Coronary Artery Disease
Eligibility Criteria
Inclusion Criteria:
- Patient must be at least 18 years of age
- Patient is able to understand the risks, benefits and treatment alternatives of receiving the DynamX Sirolimus Eluting CBS and provide written informed consent, as approved by the NZ Ethics Committee, prior to any clinical study-related procedure
- Patient must have evidence of myocardial ischemia (e.g., stable or unstable angina, silent ischemia, positive functional study or electrocardiogram (ECG) changes consistent with ischemia)
- Patient must be an acceptable candidate for coronary artery bypass graft (CABG) surgery
- Women of childbearing potential with a negative pregnancy test within 7 days and women who are not pregnant or nursing
- Patient must agree to undergo all clinical study required follow up visits, angiograms, and imaging testing
- Patient must agree not to participate in any other clinical research study for a period of one year following the index procedure Angiographic inclusion criteria- Target Lesion/Vessel
- Target lesion(s) must be located in a native coronary artery with a vessel diameter of ≥ 2.5 and ≤3.5 mm assessed visually or by online QCA
- Target lesion(s) must measure ≤ 24 mm in length
- Target lesion(s) must be in a major artery or branch with a visually estimated stenosis of ≥ 50% and < 90% with a TIMI flow of ≥ 2. When two target lesions are treated, they must be located in separate major epicardial vessels
- The lesion(s) must be successfully pre-dilated (less than 35% DS) prior to enrollment
- The target lesion length is 24 mm and able to be covered by a single DynamX Sirolimus Bioadaptor with 2 mm of healthy vessel on either side of planned implantation site
- Treatment of a single, non-target lesion located in a separate major epicardial vessel
Exclusion Criteria:
- Patient has a diagnosis of ST elevation myocardial infarction (STEMI) within 72 hours preceding the index procedure, and CK and CK-MB have not returned within normal limits at the time of procedure
- Patient requires the use of rotational atherectomy during the index procedure
- Patient has current unstable ventricular arrhythmias
- Patient has a known left ventricular ejection fraction (LVEF) < 30%
- Patient has received a heart transplant or any other organ transplant or is on a waiting list for an organ transplant
- Patient is receiving or scheduled to receive chemotherapy for malignancy within 30 days prior to or after the procedure
- Patient is receiving immunosuppression therapy, other than steroids or has known immunosuppressive or autoimmune disease (e.g. human immunodeficiency virus, systemic lupus erythematosus etc.)
- Patient has a known hypersensitivity or contraindication to aspirin, both heparin and bivalirudin, clopidogrel, prasugrel or ticagrelor, Sirolimus, CoCr alloys, PLLA polymers or contrast sensitivity that cannot be adequately pre-medicated
- Elective surgery is planned within the first 6 months after the procedure that will require discontinuing either aspirin or clopidogrel or other P2Y12 inhibitors.
- Patient has a platelet count < 100,000 cells/mm3 or > 700,000 cells/mm3, a WBC of < 3,000 cells/mm3, or documented liver disease.
- Patient has severe renal dysfunction (CKD IV or V, eGFR <30) or is on dialysis.
- Patient has a history of bleeding diathesis or coagulopathy or will refuse blood transfusions
- Patient has had a cerebrovascular accident (CVA) or transient ischemic neurological attack (TIA) within the past six months
- Patient has had a significant GI or urinary bleed within the past six months
- Patient has a condition that precludes safe 6 French sheath insertion; or other medical conditions or known history of substance abuse (alcohol, cocaine, heroin etc.) that may cause non-compliance with the clinical study plan, confound the data interpretation or associated with a limited life expectancy (i.e., less than one year)
- Patient is already participating in another clinical study which has not reached the primary endpoint (long-term follow-up is not an exclusion) Angiographic Exclusion Criteria Target Lesion/Vessel
1. Target/Vessel / Target lesion(s) meets any of the following criteria:
- Aorto-ostial location
- Left main location
- Located within 5 mm of the origin of the LAD or LCX
- Located within an arterial or saphenous vein graft or distal to a diseased arterial or saphenous vein graft
- Lesion involving a bifurcation with a side branch >2mm in diameter
- Previous placement of a stent within 10 mm of the target lesion
- Total or sub-total occlusion (TIMI flow ≤1)
- The proximal target vessel or target lesion is severely calcified by visual assessment, or the lesion prevents full pre-dilatation balloon expansion
- Previous intervention restenosis 2. The target vessel contains visible thrombus 3. Another clinically-significant lesion (>50%) is located in the same major epicardial vessel as the target lesion 5. Target vessel was previously treated with any type of PCI < 6 months prior to index procedure 6. Non-Target vessel was previously treated with any type of PCI < 30 days prior to the index procedure
Sites / Locations
- North Shore Hospital
- Auckland City Hospital
- Middlemore Hospital
- Christchurch Hospital
- Dunedin Hospital
- Waikato Hospital
- Wellington Hospital
Arms of the Study
Arm 1
Arm Type
Experimental
Arm Label
DynamX Sirolimus-eluting Coronary Bioadaptor System
Arm Description
2.5 - 3.5mm 14mm, 18mm and 28mm
Outcomes
Primary Outcome Measures
Target Lesion (s) Failure
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
Secondary Outcome Measures
Target Lesion (s) Failure
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
Target Lesion (s) Failure
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
cardiac death
death from a cardiac cause
Cardiac Death
death from a cardiac cause
Cardiac Death
death from a cardiac cause
Non-Cardiac Death
death from a non-cardiac cause
Non-Cardiac Death
death from a non-cardiac cause
Non-Cardiac Death
death from a non-cardiac cause
myocardial infarction
all
myocardial infarction
all
myocardial infarction
all
myocardial infarction
related to the target vessel
myocardial infarction
related to the target vessel
Target Lesion Revascularization
Clinically indicated repeat intervention within the target lesion
Target Lesion Revascularization
Clinically indicated repeat intervention within the target lesion
Target Lesion Revascularization
Clinically indicated repeat intervention within the target lesion
Target Vessel Revascularization
Clinically indicated repeat intervention within the target vessel
Target Vessel Revascularization
Clinically indicated repeat intervention within the target vessel
Target Vessel Revascularization
Clinically indicated repeat intervention within the target vessel
Device Thrombosis
definite and probable as classified by an Academic Research Consortium
Device Thrombosis
definite and probable as classified by an Academic Research Consortium
Device Thrombosis
definite and probable as classified by an Academic Research Consortium
Full Information
NCT ID
NCT03634020
First Posted
August 1, 2018
Last Updated
April 23, 2021
Sponsor
Elixir Medical Corporation
1. Study Identification
Unique Protocol Identification Number
NCT03634020
Brief Title
DynamX Sirolimus Study Sirolimus Eluting Coronary Bioadaptor System
Official Title
Evaluation of a Thin Strut Metallic Coronary Device: the Elixir DynamXTM Sirolimus Eluting Coronary Bioadaptor System
Study Type
Interventional
2. Study Status
Record Verification Date
April 2021
Overall Recruitment Status
Completed
Study Start Date
December 10, 2018 (Actual)
Primary Completion Date
March 8, 2021 (Actual)
Study Completion Date
March 8, 2021 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Elixir Medical Corporation
4. Oversight
Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
Yes
Product Manufactured in and Exported from the U.S.
Yes
Data Monitoring Committee
No
5. Study Description
Brief Summary
To confirm the safety and performance of the DynamX Sirolimus-eluting Coronary Bioadaptor System (SECBS) in de novo native coronary artery lesions using clinical and imaging endpoints. Clinical follow-up will be conducted in all patients at 30 days, 6 and 12 months. Imaging follow-up will be conducted at 6 months.
Detailed Description
The DynamX Sirolimus Study is a prospective, consecutive enrollment, single-arm study designed to enroll up to 30 patients requiring treatment of up to two de novo lesions ≤ 24 mm in length in vessels ≥ 2.5 mm and ≤ 3.5 mm in diameter.
One or two designated target lesions, located in separate epicardial vessels (RCA, LCX or LAD), and meeting the inclusion/exclusion criteria may be treated with the DynamX SECBS. Alternatively, one target lesion may be treated with the DynamX SECBS after successful, uncomplicated treatment of a non-target lesion, located in a separate epicardial vessel, with any commercially-available DES. Acceptable example: non-target RCA lesion and LAD target lesion. Not acceptable example: LAD non-target lesion and 1st diagonal target lesion.
The primary safety endpoint is Target Lesion Failure at 6 months. TLF is a composite endpoint defined as cardiac death, target vessel MI, and clinically-indicated target lesion revascularization The primary efficacy endpoint is late lumen loss at 6 months, assessed by angiography Additional secondary safety and effectiveness endpoints will be evaluated at 30 days, 6 and 12 months Using visual assessment, the target lesion must measure ≥ 2.5 mm and ≤ 3.5 mm in diameter and ≤ 24 mm in length able to be covered by a single DynamX Sirolimus Bioadaptor including 2 mm of healthy vessel on either side of the planned treatment area.
The patient will be eligible for stent (also called bioadaptor) implantation only after satisfactory lesion pre-dilatation defined as: ≥ TIMI 2 flow, and no dissection greater than Grade B (NHLBI) able to be covered with a single DynamX SECBS
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Coronary Artery Disease
7. Study Design
Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Single Group Assignment
Model Description
prospective, consecutive enrollment, single-arm study
Masking
None (Open Label)
Allocation
N/A
Enrollment
44 (Actual)
8. Arms, Groups, and Interventions
Arm Title
DynamX Sirolimus-eluting Coronary Bioadaptor System
Arm Type
Experimental
Arm Description
2.5 - 3.5mm 14mm, 18mm and 28mm
Intervention Type
Device
Intervention Name(s)
DynamX Sirolimus-eluting Coronary Bioadaptor System
Intervention Description
de novo native coronary artery lesions
Primary Outcome Measure Information:
Title
Target Lesion (s) Failure
Description
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
Time Frame
6 months
Secondary Outcome Measure Information:
Title
Target Lesion (s) Failure
Description
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
Time Frame
1 month
Title
Target Lesion (s) Failure
Description
composite endpoint of cardiac death, target vessel MI and clinically-indicated TLR
Time Frame
12 month
Title
cardiac death
Description
death from a cardiac cause
Time Frame
1 month
Title
Cardiac Death
Description
death from a cardiac cause
Time Frame
6 months
Title
Cardiac Death
Description
death from a cardiac cause
Time Frame
12 months
Title
Non-Cardiac Death
Description
death from a non-cardiac cause
Time Frame
1 month
Title
Non-Cardiac Death
Description
death from a non-cardiac cause
Time Frame
6 months
Title
Non-Cardiac Death
Description
death from a non-cardiac cause
Time Frame
12 months
Title
myocardial infarction
Description
all
Time Frame
1 month
Title
myocardial infarction
Description
all
Time Frame
6 months
Title
myocardial infarction
Description
all
Time Frame
12 months
Title
myocardial infarction
Description
related to the target vessel
Time Frame
1 month
Title
myocardial infarction
Description
related to the target vessel
Time Frame
6 months
Title
Target Lesion Revascularization
Description
Clinically indicated repeat intervention within the target lesion
Time Frame
1 month
Title
Target Lesion Revascularization
Description
Clinically indicated repeat intervention within the target lesion
Time Frame
6 months
Title
Target Lesion Revascularization
Description
Clinically indicated repeat intervention within the target lesion
Time Frame
12 months
Title
Target Vessel Revascularization
Description
Clinically indicated repeat intervention within the target vessel
Time Frame
1 month
Title
Target Vessel Revascularization
Description
Clinically indicated repeat intervention within the target vessel
Time Frame
6 months
Title
Target Vessel Revascularization
Description
Clinically indicated repeat intervention within the target vessel
Time Frame
12 months
Title
Device Thrombosis
Description
definite and probable as classified by an Academic Research Consortium
Time Frame
1 month
Title
Device Thrombosis
Description
definite and probable as classified by an Academic Research Consortium
Time Frame
6 months
Title
Device Thrombosis
Description
definite and probable as classified by an Academic Research Consortium
Time Frame
12 months
Other Pre-specified Outcome Measures:
Title
Qualitative coronary angiography
Description
in-device late lumen loss
Time Frame
6 months
Title
Intravascular ultrasound imaging
Description
Change in mean lumen area from post-procedure to 6-month follow-up
Time Frame
6 months
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Patient must be at least 18 years of age
Patient is able to understand the risks, benefits and treatment alternatives of receiving the DynamX Sirolimus Eluting CBS and provide written informed consent, as approved by the NZ Ethics Committee, prior to any clinical study-related procedure
Patient must have evidence of myocardial ischemia (e.g., stable or unstable angina, silent ischemia, positive functional study or electrocardiogram (ECG) changes consistent with ischemia)
Patient must be an acceptable candidate for coronary artery bypass graft (CABG) surgery
Women of childbearing potential with a negative pregnancy test within 7 days and women who are not pregnant or nursing
Patient must agree to undergo all clinical study required follow up visits, angiograms, and imaging testing
Patient must agree not to participate in any other clinical research study for a period of one year following the index procedure Angiographic inclusion criteria- Target Lesion/Vessel
Target lesion(s) must be located in a native coronary artery with a vessel diameter of ≥ 2.5 and ≤3.5 mm assessed visually or by online QCA
Target lesion(s) must measure ≤ 24 mm in length
Target lesion(s) must be in a major artery or branch with a visually estimated stenosis of ≥ 50% and < 90% with a TIMI flow of ≥ 2. When two target lesions are treated, they must be located in separate major epicardial vessels
The lesion(s) must be successfully pre-dilated (less than 35% DS) prior to enrollment
The target lesion length is 24 mm and able to be covered by a single DynamX Sirolimus Bioadaptor with 2 mm of healthy vessel on either side of planned implantation site
Treatment of a single, non-target lesion located in a separate major epicardial vessel
Exclusion Criteria:
Patient has a diagnosis of ST elevation myocardial infarction (STEMI) within 72 hours preceding the index procedure, and CK and CK-MB have not returned within normal limits at the time of procedure
Patient requires the use of rotational atherectomy during the index procedure
Patient has current unstable ventricular arrhythmias
Patient has a known left ventricular ejection fraction (LVEF) < 30%
Patient has received a heart transplant or any other organ transplant or is on a waiting list for an organ transplant
Patient is receiving or scheduled to receive chemotherapy for malignancy within 30 days prior to or after the procedure
Patient is receiving immunosuppression therapy, other than steroids or has known immunosuppressive or autoimmune disease (e.g. human immunodeficiency virus, systemic lupus erythematosus etc.)
Patient has a known hypersensitivity or contraindication to aspirin, both heparin and bivalirudin, clopidogrel, prasugrel or ticagrelor, Sirolimus, CoCr alloys, PLLA polymers or contrast sensitivity that cannot be adequately pre-medicated
Elective surgery is planned within the first 6 months after the procedure that will require discontinuing either aspirin or clopidogrel or other P2Y12 inhibitors.
Patient has a platelet count < 100,000 cells/mm3 or > 700,000 cells/mm3, a WBC of < 3,000 cells/mm3, or documented liver disease.
Patient has severe renal dysfunction (CKD IV or V, eGFR <30) or is on dialysis.
Patient has a history of bleeding diathesis or coagulopathy or will refuse blood transfusions
Patient has had a cerebrovascular accident (CVA) or transient ischemic neurological attack (TIA) within the past six months
Patient has had a significant GI or urinary bleed within the past six months
Patient has a condition that precludes safe 6 French sheath insertion; or other medical conditions or known history of substance abuse (alcohol, cocaine, heroin etc.) that may cause non-compliance with the clinical study plan, confound the data interpretation or associated with a limited life expectancy (i.e., less than one year)
Patient is already participating in another clinical study which has not reached the primary endpoint (long-term follow-up is not an exclusion) Angiographic Exclusion Criteria Target Lesion/Vessel
1. Target/Vessel / Target lesion(s) meets any of the following criteria:
Aorto-ostial location
Left main location
Located within 5 mm of the origin of the LAD or LCX
Located within an arterial or saphenous vein graft or distal to a diseased arterial or saphenous vein graft
Lesion involving a bifurcation with a side branch >2mm in diameter
Previous placement of a stent within 10 mm of the target lesion
Total or sub-total occlusion (TIMI flow ≤1)
The proximal target vessel or target lesion is severely calcified by visual assessment, or the lesion prevents full pre-dilatation balloon expansion
Previous intervention restenosis 2. The target vessel contains visible thrombus 3. Another clinically-significant lesion (>50%) is located in the same major epicardial vessel as the target lesion 5. Target vessel was previously treated with any type of PCI < 6 months prior to index procedure 6. Non-Target vessel was previously treated with any type of PCI < 30 days prior to the index procedure
Facility Information:
Facility Name
North Shore Hospital
City
Auckland
ZIP/Postal Code
0622
Country
New Zealand
Facility Name
Auckland City Hospital
City
Auckland
ZIP/Postal Code
1023
Country
New Zealand
Facility Name
Middlemore Hospital
City
Auckland
Country
New Zealand
Facility Name
Christchurch Hospital
City
Christchurch
Country
New Zealand
Facility Name
Dunedin Hospital
City
Dunedin
Country
New Zealand
Facility Name
Waikato Hospital
City
Hamilton
Country
New Zealand
Facility Name
Wellington Hospital
City
Wellington
ZIP/Postal Code
6023
Country
New Zealand
12. IPD Sharing Statement
Plan to Share IPD
No
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DynamX Sirolimus Study Sirolimus Eluting Coronary Bioadaptor System
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