Better imaging for dialysis patients? IVUS takes on vein blockages
NCT ID NCT04399941
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at whether a special ultrasound inside the vein (IVUS) can find blockages better than the usual X-ray method in people on dialysis. About 50 adults with kidney failure who have trouble with their dialysis access will take part. The goal is to see if IVUS gives clearer pictures of the blockage's size, length, and type.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 50 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2021
- Expected to finish
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Sep 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 85 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * ESRD (end stage renal disease) patients at BMC (Boston Medical Center) * Receiving hemodialysis * Has a dialysis access malfunction * Undergoing a diagnostic fistulogram for the dialysis access malfunction Exclusion Criteria: * None
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Boston Medical Center
RECRUITINGBoston, Massachusetts, 02118, United States
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