Researchers watch how clot removal affects leg vein valves
NCT ID NCT05588284
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study follows 100 people with acute deep vein thrombosis in the leg to see how well their vein valves work one year after a clot removal procedure. Participants receive standard care, including a device to remove the clot and blood-thinning medication. The goal is to learn whether the procedure helps preserve valve function and reduce long-term complications.
This is an AI summary of the original study and may miss details. Read our disclaimer.
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 100 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jun 2022
- Expected to finish
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Dec 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 80 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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Patients with acute symptomatic proximal DVT involving the femoral, and/or popliteal vein, common femoral vein, iliac veins (with or without other involved ipsilateral veins) were enrolled at seven vascular centers in China. Patients were treated with PCDT via Zelante device (Boston Scientific). Exclusion Criteria: * Participants were excluded if they had symptoms for more than 14 days.
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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
7 sites. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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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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Center hospital of Putu
Shanghai, Shanghai Municipality, 200011, China
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Central Hospital of Songjiang
Shanghai, Shanghai Municipality, 200011, China
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Chuzhou People's Hospital
Chuzhou, Anhui, 238000, China
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Fengchen Hospital
Shanghai, Shanghai Municipality, 201400, China
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North Branch of Shanghai Ninth People's Hospital
Shanghai, Shanghai Municipality, 200011, China
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Shanghai Ninth People's Hospital
Shanghai, Shanghai Municipality, 200011, China
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Taizhou Municipal hospital
Taizhou, Zhejiang, 218000, China