Stent vs. Angioplasty for Treatment of Thrombosed AV Grafts: Long-Term Outcomes
Public ClinicalTrials.gov record NCT00496639. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Stent vs. Angioplasty for Treatment of Thrombosed AV Grfats: Long-Term Outcomes
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Arteriovenous grafts are used as the vascular access in 40-50% of hemodialysis patients. Grafts are prone to recurrent stenosis (narrowing) and thrombosis (clotting). Graft clotting is usually due to a narrowing at the site where the graft joins the vein. The standard treatment is to remove the clot and angioplasty the narrowed area. The long-term outcome is not good, lasting only about 1 month. Placing a stent (a small metallic, PTFE covered, spring) at the narrowed site may keep the graft open longer. Principal investigator's preliminary research data suggest that placing a stent at the stenotic site prolongs graft patency following thrombectomy, as compared to conventional angioplasty. This is a single-center, randomized clinical trial, in which patients with a clotted graft with underlying stenosis at the venous anastomosis of the graft will be allocated to thrombectomy + angioplasty (control group) or to thrombectomy + stent placement (study group). The primary endpoint will be primary (unassisted) graft patency. The secondary endpoints will be secondary (assisted) graft patency and overall access-related costs.
Study identification
- NCT ID
- NCT00496639
- Recruitment status
- Not listed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 130 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 19 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Sep 30, 2006
- Primary completion
- Nov 30, 2009
- Completion
- Nov 30, 2010
- Last update posted
- May 21, 2008
2006 – 2010
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of Alabama Hospitals | Birmingham | Alabama | 35294 | Recruiting |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00496639, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted May 21, 2008 · Synced Sep 5, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00496639 live on ClinicalTrials.gov.