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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05232760
Other study ID # ASL202002
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date March 17, 2022
Est. completion date August 2024

Study information

Verified date July 2023
Source Klinikum Arnsberg
Contact Michael Lichtenberg, Dr.med.
Phone +49 02923 952 242
Email M.Lichtenberg@klinikum-hochsauerland.de
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The purpose of this exploratory study is to evaluate safety and effectiveness of treatment of juxta-anastomotic (re)stenosis with SUPERA stent by improving hemodynamic situation through obtuse shaping of the anastomosis.


Description:

Up to 50 patients undergoing percutaneous intervention due to juxta-anastomotic (re-)stenosis of the AV fistulas will be enrolled in this single-arm, prospective, multi-center CE marked study (IIT). Hemodialysis patients with failing radial-cephalic arteriovenous fistula (AVF) will receive treatment with the SUPERA stent and will be followed-up at 1, 3, 6 and 12 months after the procedure.


Recruitment information / eligibility

Status Recruiting
Enrollment 50
Est. completion date August 2024
Est. primary completion date June 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: 1. Patients must be = 18 years of age, able to perform follow-up visits, have a life expectancy > 12 months. 2. Hemodialysis patients undergoing endovascular angioplasty due to a clinically symptomatic stenosis (de novo or restenosis) of the juxta-anastomotic radiocephalic AVF with significant stenosis (lumen diameter < 2.7mm) 3. Patients with at least one previous endovascular intervention to restore AVF function 4. The target lesion consists of one or more lesions with a target lesion length of less than or equal to 80 mm in the juxta-anastomotic segment of the radiocephalic AVF 5. The target blood vessel diameter of the target lesion is between 4.0 and 7.5 mm (in angiographic or ultrasound evaluation) 6. If there are other non-target lesions, then non-target lesions must be successfully cured with a balloon before treating the target lesion Exclusion Criteria: 1. Patients with AVF stenosis observed and estimated as nonsignificant (lumen diameter > 2.7mm) or a vessel <4.0 and > 7.5 mm in diameter by visual estimation 2. Patients with a known hypersensitivity or contraindication to anticoagulant/anti-platelet therapies, or sensitivity to contrast media that cannot be adequately pre-medicated. 3. Patients with any contraindications as mentioned in the Instructions for Use (IFU) of the study device. 4. Patients that are currently participating in another clinical trial involving any investigational drug or device that may potentially confound the results of the study, or that would limit the patient's compliance with the follow-up requirements of the study. 5. Prior enrolment in this trial 6. Women who are pregnant or lactating 7. Patients, who underwent a major surgery (such as thoracotomy, craniotomy, etc.) within 30 days prior to the study. 8. Patients, who have scheduled a major surgery (such as thoracotomy, craniotomy, etc.). within 30 days after enrolment -

Study Design


Related Conditions & MeSH terms


Intervention

Device:
Supera™ Peripheral Stent System
The device will be employed for treatment of juxta-anastomotic stenosis in failing AV fistula after previous percutaneous angioplasty procedures

Locations

Country Name City State
Germany Klinikum Hochsauerland GmbH Arnsberg

Sponsors (1)

Lead Sponsor Collaborator
Klinikum Arnsberg

Country where clinical trial is conducted

Germany, 

Outcome

Type Measure Description Time frame Safety issue
Primary Number of patients with primary patency of juxta-anastomose at month 3 Primary patency is defined as clinically assessed intervention free (IFP) period 3 months
Secondary Number of patients with primary patency of juxta-anastomose Primary patency is defined as clinically assessed intervention free (IFP) period 1, 6 and 12 months.
Secondary Number of patients with assisted primary patency Assisted primary patency is defined as interval until access thrombosis or the time of measurement of patency, including intervening manipulations (surgical or endovascular interventions) designed to maintain the functionality of a patent access 1, 3, 6 and 12 months
Secondary Number of patients with secondary patency Secondary patency is defined as interval until access abandonment, thrombosis, or the time of patency measurement including intervening manipulations (surgical or endovascular interventions) designed to reestablish functionality in thrombosed access 1, 3, 6 and 12 months
Secondary Number of patients with technical success Residual stenosis < 30% after treatment with Supera stent (measured by angiography during the procedure) Day 1 after the index procedure
Secondary Number of patients with procedural success Residual stenosis < 30% with no major adverse events (MAE) 1 day (discharge)
Secondary Number of patients with clinical success Hemodialysis access function improved, dialysis function restored, and at least one dialysis session completed after the procedure until discharge 1 day (discharge)
Secondary Number of patients with access circuit patency Freedom from development of a stenosis in any region of the AVF circuit, including the juxta-anastomotic segment 1,3,6,12 months
Secondary Recirculation rate 1, 3, 6 and 12 months
Secondary Fistula flow Flow in AV fistula measured with ultrasound 1, 3, 6 and 12 months
Secondary Incidence of major adverse events Major adverse events (death, stroke) 6 and 12 months
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Recruiting NCT02632955 - Drug Eluting Balloon for Early Fistula Failure Trial N/A