Trial Outcomes & Findings for EPIC Nitinol Stent System in the Treatment of Atherosclerotic Lesions in Iliac Arteries (NCT NCT00896337)

NCT ID: NCT00896337

Last Updated: 2015-05-07

Results Overview

MAE is defined as any device-related or index procedure-related death within 30 days, myocardial infarction during index hospitalization, target vessel revascularization through 9 months, or amputation of the index limb through 9 months

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

125 participants

Primary outcome timeframe

9 Months

Results posted on

2015-05-07

Participant Flow

Enrollment of up to 133 subjects was planned; 125 subjects were enrolled at 28 centers in the United States from May 14, 2009 to December 14, 2010.

Participant milestones

Participant milestones
Measure
ORION
All subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
Overall Study
STARTED
125
Overall Study
COMPLETED
100
Overall Study
NOT COMPLETED
25

Reasons for withdrawal

Reasons for withdrawal
Measure
ORION
All subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
Overall Study
Death
7
Overall Study
Withdrawal by Subject
7
Overall Study
Lost to Follow-up
11

Baseline Characteristics

EPIC Nitinol Stent System in the Treatment of Atherosclerotic Lesions in Iliac Arteries

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
ORION
n=125 Participants
All subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
80 Participants
n=5 Participants
Age, Categorical
>=65 years
45 Participants
n=5 Participants
Age, Continuous
61.1 years
STANDARD_DEVIATION 9.3 • n=5 Participants
Sex: Female, Male
Female
44 Participants
n=5 Participants
Sex: Female, Male
Male
81 Participants
n=5 Participants
Race/Ethnicity, Customized
Hispanic or Latino
3 participants
n=5 Participants
Race/Ethnicity, Customized
Caucasian
112 participants
n=5 Participants
Race/Ethnicity, Customized
Black of African heritage
8 participants
n=5 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
1 participants
n=5 Participants
Race/Ethnicity, Customized
Asian
0 participants
n=5 Participants
Race/Ethnicity, Customized
Other
1 participants
n=5 Participants
Region of Enrollment
United States
125 participants
n=5 Participants
General Medical History
Smoking, Ever
121 Participants
n=5 Participants
General Medical History
Medically Treated Diabetes
42 Participants
n=5 Participants
General Medical History
Hyperlipidemia Requiring Medication
98 Participants
n=5 Participants
General Medical History
Hypertension Requiring Medication
95 Participants
n=5 Participants
General Medical History
History of Chronic Obstructive Pulmonary Disease
31 Participants
n=5 Participants
Cardiac History
History of Coronary Artery Disease
73 Participants
n=5 Participants
Cardiac History
History of Myocardial Infarction
36 Participants
n=5 Participants
Cardiac History
History of Congestive Heart Failure
10 Participants
n=5 Participants
Cardiac History
Stable Angina
15 Participants
n=5 Participants
Cardiac History
Unstable Angina
1 Participants
n=5 Participants
Cardiac History
Silent Ischemia
0 Participants
n=5 Participants
Cardiac History
Previous Percutaneous Coronary Intervention
46 Participants
n=5 Participants
Cardiac History
Previous Coronary Artery Bypass Graft
22 Participants
n=5 Participants
Peripheral Vascular History
History of Peripheral Vascular Surgery
10 Participants
n=5 Participants
Peripheral Vascular History
History of Other Peripheral Endovascular Intervent
25 Participants
n=5 Participants
Peripheral Vascular History
History of Claudication
116 Participants
n=5 Participants
Neurologic/Renal History
History of Transient Ischemic Attack
5 participants
n=5 Participants
Neurologic/Renal History
History of Cerebrovascular Accident
7 participants
n=5 Participants
Neurologic/Renal History
History of Renal Insufficiency
9 participants
n=5 Participants
Neurologic/Renal History
History of Renal Percutaneous Intervention
6 participants
n=5 Participants
Lesion Characteristic: Target Lesion Vessel
Left Common Iliac Artery
58 Lesions
n=5 Participants
Lesion Characteristic: Target Lesion Vessel
Left External Iliac Artery
16 Lesions
n=5 Participants
Lesion Characteristic: Target Lesion Vessel
Right Common Iliac Artery
58 Lesions
n=5 Participants
Lesion Characteristic: Target Lesion Vessel
Right External Iliac Artery
28 Lesions
n=5 Participants
Lesion Characteristic: Lesion Location
Ostial
100 Lesions
n=5 Participants
Lesion Characteristic: Lesion Location
Proximal
35 Lesions
n=5 Participants
Lesion Characteristic: Lesion Location
Mid
12 Lesions
n=5 Participants
Lesion Characteristic: Lesion Location
Distal
13 Lesions
n=5 Participants
Lesion Characteristics: Size
Reference Vessel Diameter
7.69 millimeters
STANDARD_DEVIATION 1.79 • n=5 Participants
Lesion Characteristics: Size
Minimum Lumen Diameter
2.20 millimeters
STANDARD_DEVIATION 1.34 • n=5 Participants
Lesion Characteristics: Size
Lesion Length
31.04 millimeters
STANDARD_DEVIATION 22.13 • n=5 Participants
Lesion Characteristic: Diameter Stenosis
71.51 percent
STANDARD_DEVIATION 16.27 • n=5 Participants
Lesion Characteristics
Concentric Lesion
72 Lesions
n=5 Participants
Lesion Characteristics
Eccentric Lesion
88 Lesions
n=5 Participants
Lesion Characteristics
> 45 Degree Bend
1 Lesions
n=5 Participants
Lesion Characteristics
> 90 Degree Bend
0 Lesions
n=5 Participants
Lesion Characteristics
Thrombus
0 Lesions
n=5 Participants
Lesion Characteristics
Calcification, Non/Mild
37 Lesions
n=5 Participants
Lesion Characteristics
Calcification, Moderate
45 Lesions
n=5 Participants
Lesion Characteristics
Calcification, Severe
78 Lesions
n=5 Participants
Lesion Characteristics
Ulcerated
29 Lesions
n=5 Participants
Lesion Characteristics
Total Occlusion
26 Lesions
n=5 Participants
Lesion Characteristics
Aneurysm
10 Lesions
n=5 Participants

PRIMARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable.

MAE is defined as any device-related or index procedure-related death within 30 days, myocardial infarction during index hospitalization, target vessel revascularization through 9 months, or amputation of the index limb through 9 months

Outcome measures

Outcome measures
Measure
Epic Stent
n=118 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Device- and/or Procedure-related Major Adverse Events (MAE)
3.4 percentage of participants

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable.

Death is classified as follows. Cardiac death: death due to immediate cardiac cause, death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

Outcome measures

Outcome measures
Measure
Epic Stent
n=121 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Death
0.0 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable.

Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

Outcome measures

Outcome measures
Measure
Epic Stent
n=118 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Death
0.8 percentage of participants

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 11 participants were not evaluable.

Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

Outcome measures

Outcome measures
Measure
Epic Stent
n=114 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Death
1.8 percentage of participants

SECONDARY outcome

Timeframe: 2 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 17 participants were not evaluable.

Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

Outcome measures

Outcome measures
Measure
Epic Stent
n=108 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Death
3.7 percentage of participants

SECONDARY outcome

Timeframe: 3 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 18 participants were not evaluable.

Death is classified as follows. Cardiac death: death due to immediate cardiac cause; death of unknown cause is classified as cardiac death, including all procedure related deaths including those related to concomitant treatment; Vascular death: death due to cerebrovascular disease, pulmonary embolism, ruptured aortic aneurysm, dissecting aneurysm, or other vascular cause; Non-cardiovascular death: any death not covered by the above definitions

Outcome measures

Outcome measures
Measure
Epic Stent
n=107 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Death
6.5 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable.

Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

Outcome measures

Outcome measures
Measure
Epic Stent
n=118 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Amputation of Index Limb
0.0 percentage of participants

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 13 participants were not evaluable.

Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

Outcome measures

Outcome measures
Measure
Epic Stent
n=112 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Amputation of Index Limb
0 percentage of participants

SECONDARY outcome

Timeframe: 2 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 19 participants were not evaluable.

Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

Outcome measures

Outcome measures
Measure
Epic Stent
n=106 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Amputation of Index Limb
0 percentage of participants

SECONDARY outcome

Timeframe: 3 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 25 participants were not evaluable.

Major amputation: amputation of the lower limb at the ankle level or above Minor amputation: amputation of forefoot or toes

Outcome measures

Outcome measures
Measure
Epic Stent
n=100 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Amputation of Index Limb
0 percentage of participants

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable.

Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=121 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Vessel Revascularization (TVR)
2.5 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable.

Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=118 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Vessel Revascularization (TVR)
3.4 percentage of participants

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 13 participants were not evaluable.

Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=112 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Vessel Revascularization (TVR)
3.6 percentage of participants

SECONDARY outcome

Timeframe: 2 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 19 participants were not evaluable.

Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=106 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Vessel Revascularization (TVR)
8.5 percentage of participants

SECONDARY outcome

Timeframe: 3 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 24 participants were not evaluable.

Target vessel revascularization (TVR) is defined as any surgical or percutaneous intervention to the target vessel(s) after the index procedure. A TVR is considered ischemia-driven if the culprit lesion stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TVR is considered ischemia-driven if the culprit lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=101 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Vessel Revascularization (TVR)
12.9 percentage of participants

SECONDARY outcome

Timeframe: Index hospitalization

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Definition of myocardial infarction: New Q-waves in ≥2 leads lasting ≥0.04 sec with creatine kinase- myoglobin band (CK-MB)/troponin above upper limit of normal (ULN); if no new Q-waves elevation of post-procedure CK levels \>2.0× ULN with positive CK-MB, or, if the assay for CK-MB was not performed, elevation of CK levels \>2.0× ULN with positive troponin. Drawing a CK-MB or troponin is mandated if CK is greater than 2× ULN. If no CK-MB or troponin was drawn, CK \>2× ULN will be considered an MI. ULN is determined per local laboratory specifications.

Outcome measures

Outcome measures
Measure
Epic Stent
n=125 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Myocardial Infarction (MI)
0.0 percentage of participants

SECONDARY outcome

Timeframe: Index procedure

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Residual lesion stenosis \<=30% based on visual assessment immediately postprocedure

Outcome measures

Outcome measures
Measure
Epic Stent
n=166 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Technical Success
100 percentage of lesions

SECONDARY outcome

Timeframe: In hospital (1-2 days post procedure)

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Technical success (residual lesion stenosis \<=30% based on visual assessment immediately postprocedure) and no in-hospital major adverse events (device- or index procedure-related death, myocardial infarction, target vessel revascularization or amputation of the index limb).

Outcome measures

Outcome measures
Measure
Epic Stent
n=125 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Procedure Success
99.2 percentage of participants

SECONDARY outcome

Timeframe: Hospital Discharge

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 12 participants were not evaluable

Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=113 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Early Clinical Success
44.2 percentage of participants

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 12 participants were not evaluable

Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=113 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Early Clinical Success
87.6 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint. There were 16 participants not evaluable.

Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=109 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Late Clinical Success
89.9 percentage of patients

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint. There were 19 participants not evaluable.

Improvement in Rutherford classification by 1 class as compared to baseline. Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=106 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Late Clinical Success
95.3 percentage of patients

SECONDARY outcome

Timeframe: Hospital Discharge

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 12 participants were not evaluable.

Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by \>0.15 from the maximum post-procedure value. Reported per limb.

Outcome measures

Outcome measures
Measure
Epic Stent
n=152 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Early Hemodynamic Success
61.2 percentage of limbs

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 12 participants were not evaluable.

Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by \>0.15 from the maximum post-procedure value. Reported per limb.

Outcome measures

Outcome measures
Measure
Epic Stent
n=151 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Early Hemodynamic Success
66.2 percentage of limbs

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 8 participants were not evaluable.

Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by \>0.15 from the maximum post-procedure value. Reported per limb.

Outcome measures

Outcome measures
Measure
Epic Stent
n=141 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Late Hemodynamic Success
66.7 percentage of limbs

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 11 participants were not evaluable.

Improvement in ankle-brachial index (ABI) by ≥0.1 from the pre-procedure value and not deteriorated by \>0.15 from the maximum post-procedure value. Reported per limb.

Outcome measures

Outcome measures
Measure
Epic Stent
n=132 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Late Hemodynamic Success
63.6 percentage of limbs

SECONDARY outcome

Timeframe: Pre-procedure/baseline

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Rutherford Classification is used to assess lower extremity ischemia as shown below: 0 = Asymptomatic 1. = Mild claudication 2. = Moderate claudication 3. = Severe claudication 4. = Ischemic rest pain 5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=125 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Rutherford Classification Distribution
Major Tissue Loss
0.0 percentage of participants
Rutherford Classification Distribution
Asymptomatic
0.0 percentage of participants
Rutherford Classification Distribution
Mild Claudication
7.2 percentage of participants
Rutherford Classification Distribution
Moderate Claudication
33.6 percentage of participants
Rutherford Classification Distribution
Severe Claudication
54.4 percentage of participants
Rutherford Classification Distribution
Ischemic Rest Pain
4.8 percentage of participants
Rutherford Classification Distribution
Minor Tissue Loss
0.0 percentage of participants

SECONDARY outcome

Timeframe: Post-procedure

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint; 12 participants were not evaluable.

Rutherford Classification is used to assess lower extremity ischemia as shown below: 0 = Asymptomatic 1. = Mild claudication 2. = Moderate claudication 3. = Severe claudication 4. = Ischemic rest pain 5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=113 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Rutherford Classification Distribution
Asymptomatic
17.7 percentage of participants
Rutherford Classification Distribution
Mild Claudication
20.4 percentage of participants
Rutherford Classification Distribution
Moderate Claudication
35.4 percentage of participants
Rutherford Classification Distribution
Severe Claudication
23.0 percentage of participants
Rutherford Classification Distribution
Ischemic Rest Pain
3.5 percentage of participants
Rutherford Classification Distribution
Minor Tissue Loss
0 percentage of participants
Rutherford Classification Distribution
Major Tissue Loss
0 percentage of participants

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint; 12 participants were not evaluable.

Rutherford Classification is used to assess lower extremity ischemia as shown below: 0 = Asymptomatic 1. = Mild claudication 2. = Moderate claudication 3. = Severe claudication 4. = Ischemic rest pain 5. = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema

Outcome measures

Outcome measures
Measure
Epic Stent
n=113 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Rutherford Classification Distribution
Minor Tissue Loss
0 percentage of participants
Rutherford Classification Distribution
Asymptomatic
65.6 percentage of participants
Rutherford Classification Distribution
Mild Claudication
16.8 percentage of participants
Rutherford Classification Distribution
Moderate Claudication
13.3 percentage of participants
Rutherford Classification Distribution
Severe Claudication
4.4 percentage of participants
Rutherford Classification Distribution
Ischemic Rest Pain
0 percentage of participants
Rutherford Classification Distribution
Major Tissue Loss
0 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; there were 16 participants not evaluable.

Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema Class 6 = Major tissue loss

Outcome measures

Outcome measures
Measure
Epic Stent
n=109 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Rutherford Classification Distribution
Asymptomatic
63.3 percentage of participants
Rutherford Classification Distribution
Mild Claudication
18.3 percentage of participants
Rutherford Classification Distribution
Moderate Claudication
15.6 percentage of participants
Rutherford Classification Distribution
Severe Claudication
2.8 percentage of participants
Rutherford Classification Distribution
Ischemic Rest Pain
0.0 percentage of participants
Rutherford Classification Distribution
Minor Tissue Loss
0.0 percentage of participants
Rutherford Classification Distribution
Major Tissue Loss
0.0 percentage of participants

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; there were 19 participants not evaluable.

Rutherford Classification is used to assess lower extremity ischemia as shown below: Class 0 = Asymptomatic Class 1 = Mild claudication Class 2 = Moderate claudication Class 3 = Severe claudication Class 4 = Ischemic rest pain Class 5 = Minor tissue loss - non-healing ulcer, focal gangrene with diffuse pedal edema Class 6 = Major tissue loss

Outcome measures

Outcome measures
Measure
Epic Stent
n=106 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Rutherford Classification Distribution
Asymptomatic
76.4 percentage of participants
Rutherford Classification Distribution
Mild Claudication
12.3 percentage of participants
Rutherford Classification Distribution
Moderate Claudication
10.4 percentage of participants
Rutherford Classification Distribution
Severe Claudication
0.9 percentage of participants
Rutherford Classification Distribution
Ischemic Rest Pain
0 percentage of participants
Rutherford Classification Distribution
Minor Tissue Loss
0 percentage of participants
Rutherford Classification Distribution
Major Tissue Loss
0 percentage of participants

SECONDARY outcome

Timeframe: 24 Hours

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable.

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Acute stent thrombosis is defined as occurring \<=24 hours following the trial procedure. Subacute stent thrombosis is defined as occurring \>24 hours to \<=30 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=121 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Acute Stent Thrombosis
0.0 percentage of participants

SECONDARY outcome

Timeframe: >24 Hours to <=30 Days Post-index procedure

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Acute stent thrombosis is defined as occurring less than or equal to 24 hours following the trial procedure. Subacute stent thrombosis is defined as occurring \>24 hours to less than or equal to 30 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=121 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Sub-acute Stent Thrombosis
2.5 percentage of participants

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Late stent thrombosis is defined as \>30 days to 365 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=118 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Stent Thrombosis
2.5 percentage of participants

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 13 participants were not evaluable

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Late stent thrombosis is defined as \>30 days to 365 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=112 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Stent Thrombosis
2.7 percentage of participants

SECONDARY outcome

Timeframe: 2 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 19 participants were not evaluable

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Very late stent thrombosis is defined as \>365 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=106 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Stent Thrombosis
2.8 percentage of participants

SECONDARY outcome

Timeframe: 3 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 24 participants were not evaluable

Angiographic documentation of an acute, complete occlusion of a previously successfully treated lesion and/or Angiographic documentation of a flow-limiting thrombus within, or adjacent to, a previously successfully treated lesion Very late stent thrombosis is defined as \>365 days following the trial procedure.

Outcome measures

Outcome measures
Measure
Epic Stent
n=101 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Stent Thrombosis
4.0 percentage of participants

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable.

Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=161 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Lesion Revascularization (TLR)
1.9 percentage of lesions

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 7 participants were not evaluable.

Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=157 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Lesion Revascularization (TLR)
3.2 percentage of lesions

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 13 participants were not evaluable.

Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=150 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Lesion Revascularization (TLR)
3.3 percentage of lesions

SECONDARY outcome

Timeframe: 2 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 19 participants were not evaluable.

Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=143 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Lesion Revascularization (TLR)
5.6 percentage of lesions

SECONDARY outcome

Timeframe: 3 Years

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 24 participants were not evaluable.

Target lesion revascularization (TLR) is any surgical or percutaneous intervention to the target lesion(s) after the index procedure. A TLR will be considered ischemia-driven if the target lesion diameter stenosis is ≥50% by quantitative angiography and the subject has ischemic symptoms. A TLR will be considered ischemia-driven if the lesion diameter stenosis is ≥70% even in the absence of clinical or functional ischemia.

Outcome measures

Outcome measures
Measure
Epic Stent
n=139 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Target Lesion Revascularization (TLR)
10.1 percentage of lesions

SECONDARY outcome

Timeframe: Pre-procedure/baseline

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows: Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation. Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=159 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Ankle-Brachial Index (ABI)
0.79 ratio
Standard Deviation 0.18

SECONDARY outcome

Timeframe: Hospital Discharge (1-2 days post-procedure)

Population: Analysis was intention to treat; all participants in the study were evaluated to provide the information needed for this endpoint

Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows: Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation. Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=155 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Ankle-Brachial Index
0.96 ratio
Standard Deviation 0.17

SECONDARY outcome

Timeframe: 30 Days

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 4 participants were not evaluable.

Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows: Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation. Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=153 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Ankle-Brachial Index (ABI)
0.99 ratio
Standard Deviation .015

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 15 participants were not evaluable.

Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows: Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation. Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=142 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Ankle-Brachial Index (ABI)
0.97 ratio
Standard Deviation 0.17

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 16 participants were not evaluable.

Ratio between the systolic pressure measured at the ankle and the systolic pressure measured in the arm as follows: Ankle: The systolic pressure will be measured in the index limb at the arteria dorsalis pedis and/or the arteria tibialis posterior. If both pressures are measured, the highest pressures will be used for the ABI calculation. Brachial: The systolic pressure will be measured in both arms, and the highest of both pressures will be used for the ABI calculation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=135 Limbs
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Ankle-Brachial Index (ABI)
0.96 ratio
Standard Deviation 0.17

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 30 participants were not evaluable

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization, bypass of the target lesion, or amputation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=122 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Primary Patency
95.9 percentage of lesions

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 50 participants were not evaluable

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization, bypass of the target lesion, or amputation.

Outcome measures

Outcome measures
Measure
Epic Stent
n=99 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Primary Patency
93.9 percentage of lesions

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 30 participants were not evaluable.

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary-assisted patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization for total occlusion, bypass of the target lesion, or amputation. In 1 subject, SVR was invalid and DUS proximal peak systolic velocity was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=122 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Primary-assisted Patency (PAP)
98.4 percentage of lesions

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 50 participants were not evaluable.

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Primary-assisted patency (defined per lesion) is defined as DUS SVR ≤2.5 with no target lesion revascularization for total occlusion, bypass of the target lesion, or amputation. In 1 subject, SVR was invalid and DUS proximal peak systolic velocity was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=99 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Primary-assisted Patency (PAP)
96.0 percentage of lesions

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 31 participants were not evaluable

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Secondary patency (defined per lesion) is defined as having DUS SVR ≤2.5 in the absence of bypass of the target lesion or amputation. In 1 subject, SVR was invalid and proximal peak systolic velocity was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=120 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Secondary Patency
100 percentage of lesions

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 50 participants were not evaluable

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Secondary patency (defined per lesion) is defined as having DUS SVR ≤2.5 in the absence of bypass of the target lesion or amputation. In 1 subject, SVR was invalid and proximal peak systolic velocity was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=98 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Secondary Patency
98.0 percentage of lesions

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 30 participants were not evaluable.

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Restenosis (defined per lesion)is defined as DUS SVR \>2.5 or the presence of a target lesion revascularization prior to the DUS examination, regardless of the SVR value. In 1 subject, SVR was invalid and proximal peak systolic velocity by DUS was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=122 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Restenosis Assessed by Duplex Ultrasound
2.5 percentage of lesions

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 50 participants were not evaluable.

Systolic velocity ratio (SVR) is the ratio of the measurement of systolic velocity in 2 arterial regions as determined by duplex ultrasound (DUS). Restenosis (defined per lesion)is defined as DUS SVR \>2.5 or the presence of a target lesion revascularization prior to the DUS examination, regardless of the SVR value. In 1 subject, SVR was invalid and proximal peak systolic velocity by DUS was analyzed to assess restenosis.

Outcome measures

Outcome measures
Measure
Epic Stent
n=99 Lesions
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Restenosis Assessed by Duplex Ultrasound
6.1 percentage of lesions

SECONDARY outcome

Timeframe: Pre-procedure/baseline

Population: Analysis was intention to treat; all participants in the study were to be evaluated to provide the information needed for this endpoint; one participant was not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=124 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Distance
14.56 units on a scale
Standard Deviation 19.36

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 15 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=110 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Distance
56.35 units on a scale
Standard Deviation 38.97

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 16 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=109 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Distance
55.88 units on a scale
Standard Deviation 38.02

SECONDARY outcome

Timeframe: Pre-procedure/baseline

Population: Analysis was intention to treat; all participants in the study were to be evaluated to provide the information needed for this endpoint; one participant was not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=124 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Speed
18.38 units on a scale
Standard Deviation 19.18

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 15 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=110 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Speed
48.45 units on a scale
Standard Deviation 31.50

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to undergo clinical follow up to provide the information needed for this endpoint; 16 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=109 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Speed
47.96 units on a scale
Standard Deviation 31.80

SECONDARY outcome

Timeframe: Pre-procedure/baseline

Population: Analysis was intention to treat; all participants in the study were to be evaluated to provide the information needed for this endpoint; one participant was not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=124 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score-Stair Climbing
26.14 units on a scale
Standard Deviation 26.91

SECONDARY outcome

Timeframe: 9 Months

Population: Analysis was intention to treat; all participants in the study were to be evaluated to provide the information needed for this endpoint; 15 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=110 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Stair Climbing
59.39 units on a scale
Standard Deviation 38.08

SECONDARY outcome

Timeframe: 1 Year

Population: Analysis was intention to treat; all participants in the study were to be evaluated to provide the information needed for this endpoint; 17 participants were not evaluable.

The Walking Impairment Questionnaire is a functional-assessment questionnaire that evaluates walking ability with regard to speed, distance and stair climbing ability as well as the reasons that walking ability might be limited. Range of scores is between 0% and 100% with 100% being the best and 0% being the worst score.

Outcome measures

Outcome measures
Measure
Epic Stent
n=108 Participants
Participants treated with iliac artery stenting using the Epic™ Nitinol Stent System.
Walking Impairment Questionnaire Score - Stair Climbing
57.72 units on a scale
Standard Deviation 37.17

Adverse Events

ORION

Serious events: 77 serious events
Other events: 63 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
ORION
n=125 participants at risk
All subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
Blood and lymphatic system disorders
Anaemia
0.80%
1/125 • Number of events 3 • 3 Years
Blood and lymphatic system disorders
Febrile Neutropenia
0.80%
1/125 • Number of events 1 • 3 Years
Blood and lymphatic system disorders
Haemorrhagic Anaemia
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Acute Coronary Syndrome
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Angina Pectoris
5.6%
7/125 • Number of events 8 • 3 Years
Cardiac disorders
Angina Unstable
1.6%
2/125 • Number of events 2 • 3 Years
Cardiac disorders
Atrial Fibrillation
5.6%
7/125 • Number of events 10 • 3 Years
Cardiac disorders
Cardiac Arrest
1.6%
2/125 • Number of events 2 • 3 Years
Cardiac disorders
Coronary Artery Disease
3.2%
4/125 • Number of events 5 • 3 Years
Cardiac disorders
Coronary Artery Stenosis
2.4%
3/125 • Number of events 3 • 3 Years
Cardiac disorders
Ischaemic Cardiomyopathy
1.6%
2/125 • Number of events 2 • 3 Years
Cardiac disorders
Mitral Valve Stenosis
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Myocardial Infarction
2.4%
3/125 • Number of events 3 • 3 Years
Eye disorders
Blindness
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Abdominal Pain
1.6%
2/125 • Number of events 3 • 3 Years
Gastrointestinal disorders
Constipation
0.80%
1/125 • Number of events 2 • 3 Years
Gastrointestinal disorders
Gastrointestinal Haemorrhage
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Ileus
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Upper Gastrointestinal Haemorrhage
0.80%
1/125 • Number of events 1 • 3 Years
General disorders
Catheter Site Haematoma
0.80%
1/125 • Number of events 1 • 3 Years
General disorders
Catheter Site Haemorrhage
0.80%
1/125 • Number of events 1 • 3 Years
General disorders
Chest discomfort
0.80%
1/125 • Number of events 1 • 3 Years
General disorders
Non-cardiac Chest Pain
3.2%
4/125 • Number of events 5 • 3 Years
General disorders
Oedema Peripheral
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Bile Duct Stenosis
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Cholecystitis Acute
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Cholecystitis Chronic
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Abdominal Abscess
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Clostridial Infection
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Diverticulitis
0.80%
1/125 • Number of events 2 • 3 Years
Infections and infestations
Pneumonia
4.8%
6/125 • Number of events 7 • 3 Years
Infections and infestations
Wound Infection
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Drug Toxicity
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Stent-graft Malfunction
1.6%
2/125 • Number of events 2 • 3 Years
Injury, poisoning and procedural complications
Vascular Pseudoaneurysm
1.6%
2/125 • Number of events 2 • 3 Years
Injury, poisoning and procedural complications
Wound Dehiscence
0.80%
1/125 • Number of events 1 • 3 Years
Investigations
Blood Creatinine Increased
0.80%
1/125 • Number of events 1 • 3 Years
Musculoskeletal and connective tissue disorders
Lumbar Spinal Stenosis
1.6%
2/125 • Number of events 2 • 3 Years
Musculoskeletal and connective tissue disorders
Pain In Extremity
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast Cancer
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung Neoplasm Malignant
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Recurrent Cancer
0.80%
1/125 • Number of events 1 • 3 Years
Nervous system disorders
Carotid Artery Stenosis
3.2%
4/125 • Number of events 5 • 3 Years
Nervous system disorders
Diplegia
0.80%
1/125 • Number of events 1 • 3 Years
Nervous system disorders
Headache
1.6%
2/125 • Number of events 2 • 3 Years
Nervous system disorders
Hypoaesthesia
0.80%
1/125 • Number of events 1 • 3 Years
Psychiatric disorders
Mental Status Changes
1.6%
2/125 • Number of events 2 • 3 Years
Respiratory, thoracic and mediastinal disorders
Acute Pulmonary Oedema
0.80%
1/125 • Number of events 1 • 3 Years
Respiratory, thoracic and mediastinal disorders
Acute Respiratory Failure
1.6%
2/125 • Number of events 2 • 3 Years
Respiratory, thoracic and mediastinal disorders
Chronic Obstructive Pulmonary Disease
4.0%
5/125 • Number of events 8 • 3 Years
Respiratory, thoracic and mediastinal disorders
Pneumonia Aspiration
1.6%
2/125 • Number of events 2 • 3 Years
Vascular disorders
Angiodysplasia
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Arterial Stenosis
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Iliac Artery Thrombosis
1.6%
2/125 • Number of events 2 • 3 Years
Vascular disorders
Intermittent Claudication
4.0%
5/125 • Number of events 7 • 3 Years
Vascular disorders
Peripheral Artery Dissection
2.4%
3/125 • Number of events 3 • 3 Years
Vascular disorders
Peripheral Ischaemia
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Peripheral Vascular Disorder
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Thrombosis
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Vascular Occlusion
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Vessel Perforation
0.80%
1/125 • Number of events 1 • 3 Years
Blood and lymphatic system disorders
Pancytopenia
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Acute Myocardial Infarction
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Bradycardia
0.80%
1/125 • Number of events 1 • 3 Years
Cardiac disorders
Cardiac Failure Congestive
2.4%
3/125 • Number of events 3 • 3 Years
Cardiac disorders
Sinus Arrhythmia
0.80%
1/125 • Number of events 1 • 3 Years
Eye disorders
Cataract
1.6%
2/125 • Number of events 3 • 3 Years
Gastrointestinal disorders
Ascites
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Colonic Polyp
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Large Intestine Perforation
0.80%
1/125 • Number of events 2 • 3 Years
Gastrointestinal disorders
Oesophagitis
0.80%
1/125 • Number of events 1 • 3 Years
Gastrointestinal disorders
Pancreatitis
0.80%
1/125 • Number of events 1 • 3 Years
General disorders
Chest Pain
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Bile Duct Stone
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Cholecystitis
0.80%
1/125 • Number of events 1 • 3 Years
Hepatobiliary disorders
Cholelithiasis
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Bronchiectasis
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Bronchitis
0.80%
1/125 • Number of events 1 • 3 Years
Infections and infestations
Cellulitis
1.6%
2/125 • Number of events 2 • 3 Years
Infections and infestations
Septic Shock
1.6%
2/125 • Number of events 2 • 3 Years
Infections and infestations
Urinary Tract Infection
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Chemical Eye Injury
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Fall
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Gun Shot Wound
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Post Procedural Haematoma
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Procedural Hypotension
0.80%
1/125 • Number of events 1 • 3 Years
Injury, poisoning and procedural complications
Thermal Burn
0.80%
1/125 • Number of events 1 • 3 Years
Metabolism and nutrition disorders
Hyperkalaemia
0.80%
1/125 • Number of events 1 • 3 Years
Musculoskeletal and connective tissue disorders
Back Pain
0.80%
1/125 • Number of events 1 • 3 Years
Musculoskeletal and connective tissue disorders
Osteoarthritis
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Bladder Cancer
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Chronic Lymphocytic Leukaemia
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Leukaemia
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Lung Carcinoma Cell Type Unspecified Stage IV
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Malignant Peritoneal Neoplasm
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Metastatic Neoplasm
0.80%
1/125 • Number of events 1 • 3 Years
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Prostate Cancer
0.80%
1/125 • Number of events 1 • 3 Years
Nervous system disorders
Cerebrovascular Accident
2.4%
3/125 • Number of events 3 • 3 Years
Nervous system disorders
Convulsion
0.80%
1/125 • Number of events 1 • 3 Years
Psychiatric disorders
Depression
1.6%
2/125 • Number of events 2 • 3 Years
Renal and urinary disorders
Calculus Ureteric
0.80%
1/125 • Number of events 2 • 3 Years
Renal and urinary disorders
Haematuria
0.80%
1/125 • Number of events 1 • 3 Years
Renal and urinary disorders
Nephrolithiasis
0.80%
1/125 • Number of events 1 • 3 Years
Renal and urinary disorders
Renal Artery Stenosis
1.6%
2/125 • Number of events 2 • 3 Years
Renal and urinary disorders
Renal Failure Acute
1.6%
2/125 • Number of events 2 • 3 Years
Renal and urinary disorders
Renal Mass
0.80%
1/125 • Number of events 1 • 3 Years
Respiratory, thoracic and mediastinal disorders
Dyspnoea
2.4%
3/125 • Number of events 3 • 3 Years
Respiratory, thoracic and mediastinal disorders
Epistaxis
0.80%
1/125 • Number of events 1 • 3 Years
Respiratory, thoracic and mediastinal disorders
Pleural Effusion
0.80%
1/125 • Number of events 1 • 3 Years
Respiratory, thoracic and mediastinal disorders
Pulmonary Oedema
0.80%
1/125 • Number of events 1 • 3 Years
Respiratory, thoracic and mediastinal disorders
Respiratory Arrest
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Aortic Aneurysm
1.6%
2/125 • Number of events 2 • 3 Years
Vascular disorders
Femoral Arterial Stenosis
0.80%
1/125 • Number of events 3 • 3 Years
Vascular disorders
Hypertension
1.6%
2/125 • Number of events 2 • 3 Years
Vascular disorders
Iliac Artery Occlusion
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Iliac Artery Stenosis
4.8%
6/125 • Number of events 6 • 3 Years
Vascular disorders
Leriche Syndrome
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Peripheral Arterial Occlusive Disease
0.80%
1/125 • Number of events 1 • 3 Years
Vascular disorders
Subclavian Steal Syndrome
0.80%
1/125 • Number of events 1 • 3 Years

Other adverse events

Other adverse events
Measure
ORION
n=125 participants at risk
All subjects who meet the inclusion criteria and are enrolled in this trial will be treated with iliac artery stenting with the Epic™ Nitinol Stent System.
General disorders
Catheter Site Haematoma
8.0%
10/125 • Number of events 10 • 3 Years
Musculoskeletal and connective tissue disorders
Back Pain
11.2%
14/125 • Number of events 17 • 3 Years
Musculoskeletal and connective tissue disorders
Pain In Extremity
12.0%
15/125 • Number of events 22 • 3 Years
Cardiac disorders
Angina Pectoris
5.6%
7/125 • Number of events 7 • 3 Years
Infections and infestations
Bronchitis
5.6%
7/125 • Number of events 8 • 3 Years
Musculoskeletal and connective tissue disorders
Arthralgia
8.0%
10/125 • Number of events 11 • 3 Years

Additional Information

Angela Schutt

Boston Scientific

Phone: 763-494-2166

Results disclosure agreements

  • Principal investigator is a sponsor employee The Principal Investigator shall have the right to publish the results, provided that before publishing, the PI shall submit copies of any proposed publication or presentation to Sponsor for review at least 45 days in advance of submission for publication or presentation to a publisher or other third party. Sponsor reserves the right to delete any confidential information or other proprietary information of Sponsor from the proposed publication or presentation.
  • Publication restrictions are in place

Restriction type: OTHER