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Cook Enforcer Post-Market Study

Randomized Clinical Study to Evaluate the Advance® Enforcer™ 35 Focal-Force PTA Balloon Catheter in Treatment of Arteriovenous Dialysis Access Circuit Stenosis

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03552289
Enrollment
211
Registered
2018-06-11
Start date
2018-08-07
Completion date
2019-08-27
Last updated
2020-10-19

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

End-Stage Renal Disease

Keywords

Dialysis, Renal, Hemodialysis, Stenosis(es), Transluminal, Percutaneous Transluminal Angioplasty

Brief summary

The purpose of this study is to evaluate the performance of the Cook Advance® Enforcer™ 35 Focal-Force PTA Balloon Catheter (or Enforcer balloon) in treating narrowed blood vessels compared to treatment with a conventional angioplasty balloon.

Interventions

DEVICECook Advance® Enforcer 35 Focal-Force Percutaneous Transluminal Angioplasty (PTA) Balloon Catheter

The Enforcer balloon device will be used in treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula

DEVICEConventional angioplasty balloon catheters

Commercially available angioplasty balloon devices will be used in treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula

Sponsors

Cook Research Incorporated
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Clinical or physiological abnormalities which indicate dialysis access dysfunction (e.g., decreased access blood flow, elevated venous pressure, decreased dialysis dose, abnormal physical exam)

Exclusion criteria

* Less than 18 years old * Pregnant, lactating, or planning to become pregnant in the 3 months following enrollment * Underwent any surgical or interventional procedure of the access circuit less than or equal to 30 days prior to enrollment * Scheduled for a kidney transplant * Stent or stent graft in the arteriovenous (AV) dialysis access circuit

Design outcomes

Primary

MeasureTime frameDescription
Percent of Lesions Requiring Adjunctive TreatmentImmediately following treatment of stenoses of a mature native arteriovenous dialysis access circuit fistula or graft, up to approximately 1 hourPercentage of lesions requiring adjunctive treatment immediately following the initial treatment with the Enforcer or conventional angioplasty balloon

Countries

United States

Participant flow

Participants by arm

ArmCount
Cook Enforcer Balloon Catheter
The Enforcer balloon will be used in the treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula. Cook Advance® Enforcer 35 Focal-Force Percutaneous Transluminal Angioplasty (PTA) Balloon Catheter: The Enforcer balloon device will be used in treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula
102
Conventional Angioplasty Balloon Catheters
Commercial available angioplasty balloon devices will be used in the treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula. Conventional angioplasty balloon catheters: Commercial available angioplasty balloon devices will be used in treatment of obstructive lesions of native or synthetic arteriovenous dialysis fistula
109
Total211

Baseline characteristics

CharacteristicConventional Angioplasty Balloon CathetersTotalCook Enforcer Balloon Catheter
Age, Continuous65.5 years
STANDARD_DEVIATION 12.8
65.5 years
STANDARD_DEVIATION 12.6
65.5 years
STANDARD_DEVIATION 12.4
Ethnicity (NIH/OMB)
Hispanic or Latino
15 Participants20 Participants5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
93 Participants190 Participants97 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants3 Participants3 Participants
Race (NIH/OMB)
Asian
2 Participants4 Participants2 Participants
Race (NIH/OMB)
Black or African American
43 Participants86 Participants43 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
7 Participants9 Participants2 Participants
Race (NIH/OMB)
White
57 Participants108 Participants51 Participants
Sex: Female, Male
Female
51 Participants94 Participants43 Participants
Sex: Female, Male
Male
58 Participants117 Participants59 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 1022 / 109
other
Total, other adverse events
24 / 10223 / 109
serious
Total, serious adverse events
2 / 1021 / 109

Outcome results

Primary

Percent of Lesions Requiring Adjunctive Treatment

Percentage of lesions requiring adjunctive treatment immediately following the initial treatment with the Enforcer or conventional angioplasty balloon

Time frame: Immediately following treatment of stenoses of a mature native arteriovenous dialysis access circuit fistula or graft, up to approximately 1 hour

ArmMeasureValue (COUNT_OF_UNITS)
Cook Enforcer Balloon CatheterPercent of Lesions Requiring Adjunctive Treatment30 Lesions
Conventional Angioplasty Balloon CathetersPercent of Lesions Requiring Adjunctive Treatment26 Lesions
p-value: 0.8283One-sided Z-test

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026