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The SIR-POBA Shunt Trial

SIRolimus-coated Versus Plain Old Balloon Angioplasty in Upper Extremity Arteriovenous Shunt Stenosis - the SIR-POBA Shunt Trial

Status
Withdrawn
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06056206
Enrollment
0
Registered
2023-09-28
Start date
2023-09-20
Completion date
2027-10-01
Last updated
2025-06-29

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

Conditions

Arteriovenous Fistula Stenosis

Brief summary

The goal of this clinical trial is to compare plain old balloon angioplasty with sirolimus-coated balloon angioplasty in patients with an arteriovenous shunt stenosis. The main question we aim to answer is, how patency is affected by each of the randomised treatment modality.

Detailed description

This clinical trial will be conducted at our Division of Vascular Surgery and Endovascular Surgery at the University Hospital of Salzburg. Patients will be randomized into one of the two treatment options (plain old ballon angioplasty versus sirolimus coated balloon angioplasty). The recruitment phase is calculated for two years with a planned follow-up of 2 years. Follow-up data will be collected to answer the endpoints and will include all available follow-ups to monitor the shunt up to 2 years after the procedure. Typically, follow-up visits will be conducted at 6 weeks, 3 months, 6 months, 12 months, and 24 months after the procedure. The shunts are checked for functionality as part of the dialysis required three times a week and presented to our department beforehand in need. This saves chronically ill patients the additional waiting time in hospital outpatient departments.

Interventions

RADIATIONBalloon Angioplasty

Revascularisation procedures will be performed according to randomised list.

Sponsors

MedAlliance Swiss Medical Technology
CollaboratorUNKNOWN
Paracelsus Medical University
Lead SponsorOTHER

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

* Age at least 18 years * Informed consent with signature * Maturated shunt, defined as already in use for two weeks * Shunt stenosis in need of intervention

Exclusion criteria

* Pregnant or breastfeeding women * Active infection or sepsis * Incapacitated patients * Lesions in the affected stenosis already pretreated by stenting in the same area shunt. * Patients currently participating in another study * Central venous stenosis worthy of treatment * intolerance to sirolimus * coagulopathy * radiotherapy * patients on immunosuppressive therapy * use of potent CYP3A4 and/or P-gp inhibitors (such as ketoconazole, Voriconazole, itraconazole, erythromycin, telithromycin, or clarithromycin) or strong CYP3A4 and/or P-gp inducers (such as rifampin or rifabutin).

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Primary Lesion Target Patency of the arteriovenous shunt stenosis2 yearsThe incidence of patency will be analysed after reopening the stenosis of the arteriovenous shunt.

Countries

Austria

Outcome results

None listed

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