Trial Outcomes & Findings for GORE Embolic Protection With Reverse Flow (NCT NCT00594100)

NCT ID: NCT00594100

Last Updated: 2013-12-27

Results Overview

Number of participants with one or more Major Adverse Event (death, stroke, myocardial infarction, and/or transient ischemic attack (TIA)) through the 30-day follow-up (non-hierarchical; MAE adjudicated by independent Clinical Events Committee)

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

245 participants

Primary outcome timeframe

Treatment through 30-day visit window

Results posted on

2013-12-27

Participant Flow

The study was approved to enroll subjects from a maximum of 40 medical institutions in the United States (including public and academic research center hospitals and private practices).

Participant milestones

Participant milestones
Measure
GFRS Pivotal Subjects
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Procedure
STARTED
245
Procedure
COMPLETED
236
Procedure
NOT COMPLETED
9
Follow-up Through 30 Days Post Procedure
STARTED
236
Follow-up Through 30 Days Post Procedure
COMPLETED
224
Follow-up Through 30 Days Post Procedure
NOT COMPLETED
12

Reasons for withdrawal

Reasons for withdrawal
Measure
GFRS Pivotal Subjects
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Procedure
Technical Failure
9
Follow-up Through 30 Days Post Procedure
Death / Reintervention / Medical Reasons
2
Follow-up Through 30 Days Post Procedure
Discontinued Prior to Visit
6
Follow-up Through 30 Days Post Procedure
Missed Visit - Phone Contact Follow-up
4

Baseline Characteristics

GORE Embolic Protection With Reverse Flow

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
GFRS Pivotal Subjects
n=245 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Age, Continuous
71.0 years
n=5 Participants
Age, Customized
< 80 years
207 participants
n=5 Participants
Age, Customized
>= 80 years
38 participants
n=5 Participants
Sex: Female, Male
Female
80 Participants
n=5 Participants
Sex: Female, Male
Male
165 Participants
n=5 Participants
History of Diabetes
Yes
86 participants
n=5 Participants
History of Diabetes
No
159 participants
n=5 Participants
History of Hypertension
Yes
212 participants
n=5 Participants
History of Hypertension
No
33 participants
n=5 Participants
History of Ischemic Stroke
None
192 participants
n=5 Participants
History of Ischemic Stroke
One
42 participants
n=5 Participants
History of Ischemic Stroke
Two or More
11 participants
n=5 Participants
Previous Endarterectomy
None
143 participants
n=5 Participants
Previous Endarterectomy
Less than 1 Year
23 participants
n=5 Participants
Previous Endarterectomy
Greater than 1 Year
79 participants
n=5 Participants
Symptomatic
Symptomatic
78 participants
n=5 Participants
Symptomatic
Asymptomatic
167 participants
n=5 Participants

PRIMARY outcome

Timeframe: Treatment through 30-day visit window

Population: All primary endpoint evaluable subjects

Number of participants with one or more Major Adverse Event (death, stroke, myocardial infarction, and/or transient ischemic attack (TIA)) through the 30-day follow-up (non-hierarchical; MAE adjudicated by independent Clinical Events Committee)

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=202 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Composite Major Adverse Event (MAE) Rate
Major Ischemic Stroke
0 participants
Composite Major Adverse Event (MAE) Rate
Minor Ischemic Stroke
5 participants
Composite Major Adverse Event (MAE) Rate
Hemorrhagic Stroke
2 participants
Composite Major Adverse Event (MAE) Rate
Death
2 participants
Composite Major Adverse Event (MAE) Rate
Death / Any Stroke
7 participants
Composite Major Adverse Event (MAE) Rate
Myocardial Infarction (MI)
2 participants
Composite Major Adverse Event (MAE) Rate
Death / Stroke / MI
9 participants
Composite Major Adverse Event (MAE) Rate
Transient Ischemic Attack (TIA)
2 participants
Composite Major Adverse Event (MAE) Rate
Overall MAE
11 participants

SECONDARY outcome

Timeframe: Procedure

Population: All enrolled subjects

Number of participants with Technical Success using the GORE Flow Reversal System (system deployed and utilized during stenting procedure)

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=245 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Flow Reversal System Technical Success
236 participants

SECONDARY outcome

Timeframe: Procedure

Number of participants where the GORE Flow Reversal System was delivered, placed, reverse flow was established, and the balloon sheath and wire retrieved as outlined in the Instructions for Use without causing any adverse events during the procedure.

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=245 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Flow Reversal System Success
233 participants

SECONDARY outcome

Timeframe: Procedure

Population: All enrolled subjects with post procedure angiographic assessment of lesion stenosis

Number of participants where the FDA-approved stent was successfully delivered, deployed,and delivery system removed with an attainment of \< 50% residual stenosis following stent placement, as assessed by the angiographic core laboratory.

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=230 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Stent Success
228 participants

SECONDARY outcome

Timeframe: 24-48 Hours Post-Procedure

Population: All enrolled subjects with post procedure angiographic assessment of lesion stenosis

Number of participants with Flow Reversal System and Stent Success in the absence of death, emergency endarterectomy, repeat percutaneous transluminal angioplasty (PTA)/thrombolysis of the target vessel, stroke, or myocardial infarction (MI), as determined by the Clinical Events Committee (CEC).

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=230 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Clinical Success
211 participants

SECONDARY outcome

Timeframe: Treatment through 30-day visit window

Population: Subjects with successful stent placement and ultrasound evaluation at 30-day follow-up evaluation.

Number of participants with less than 50% restenosis as determined by carotid duplex ultrasound core laboratory at 30 days post-procedure.

Outcome measures

Outcome measures
Measure
GFRS Pivotal Subjects
n=186 Participants
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Patency at 30 Days
182 participants

Adverse Events

GFRS Pivotal Subjects

Serious events: 40 serious events
Other events: 62 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
GFRS Pivotal Subjects
n=245 participants at risk
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Cardiac disorders
Hypotension
5.7%
14/245 • Number of events 14 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Blood and lymphatic system disorders
Groin Hematoma (w/wo Surgical Repair)
0.82%
2/245 • Number of events 2 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Blood and lymphatic system disorders
Other (Bleeding)
1.2%
3/245 • Number of events 3 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Blood and lymphatic system disorders
Anemia
1.6%
4/245 • Number of events 4 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Angina/Coronary Ischemia
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Arrhythmia
1.6%
4/245 • Number of events 4 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Congestive Heart Failure (CHF)
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Myocardial Infarction (MI)
1.2%
3/245 • Number of events 3 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Stroke/Cerebrovascular accident (CVA)
2.0%
5/245 • Number of events 5 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Cerebral ischemia/Transient ischemic attack (TIA)
0.41%
1/245 • Number of events 3 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Other (Cardiac)
1.6%
4/245 • Number of events 4 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Renal and urinary disorders
Renal Failure/Insufficiency
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Infections and infestations
Other (Infectious/Inflammatory)
1.2%
3/245 • Number of events 3 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Other (Neurologic)
0.82%
2/245 • Number of events 3 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Hyperperfusion Syndrome
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Pain (Head, Neck)
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Surgical and medical procedures
Other (Surgical Procedure)
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Vascular disorders
Pseudoaneurysm (Femoral)
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Injury, poisoning and procedural complications
Other (Wound)
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
General disorders
Other (Other)
2.0%
5/245 • Number of events 6 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Cerebral Hemorrhage
0.41%
1/245 • Number of events 1 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.

Other adverse events

Other adverse events
Measure
GFRS Pivotal Subjects
n=245 participants at risk
All non-training subjects using the GORE Flow Reversal System for embolic protection during carotid artery stenting (all subjects other than first two subjects accounted for in Training Cases).
Cardiac disorders
Arrhythmia
3.3%
8/245 • Number of events 8 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Hypotension
11.4%
28/245 • Number of events 28 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Cardiac disorders
Hypertension
4.9%
12/245 • Number of events 13 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Other (Neurologic)
3.7%
9/245 • Number of events 11 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Nervous system disorders
Pain (Head, Neck)
4.5%
11/245 • Number of events 11 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.
Surgical and medical procedures
Other (Other)
7.3%
18/245 • Number of events 19 • 30 days postprocedure (0-40 days given 10-day late follow-up window)
AEs reported by investigative sites via Adverse Event Case Report Form (CRF), using study-specific coding. Site-reported adverse events that were potential Major Adverse Events (stroke or TIA) were adjudicated by the independent Clinical Events Committee.

Additional Information

Andrew Garcia

W. L. Gore & Associates

Phone: (800) 437-8181

Results disclosure agreements

  • Principal investigator is a sponsor employee Gore has the right to review disclosures, requesting a delay of less than 90 days. Each investigator will postpone single center publications until after disclosure of multi-center data, less than 12 months from study completion/termination at all participating sites.
  • Publication restrictions are in place

Restriction type: OTHER