Can a 'Scoring' balloon unclog leg arteries better and reduce stents?
NCT ID NCT07764016
First seen Aug 13, 2026 · Last updated Aug 14, 2026 · Updated 1 time
Summary
This trial is testing whether preparing a blocked leg artery with a special 'scoring' balloon before using a drug-coated balloon improves outcomes compared to using a standard balloon. The study involves people with severe leg artery disease (critical limb-threatening ischemia) who need a procedure to restore blood flow. Participants are randomly assigned to one of two balloon preparation methods, and researchers will track how well the artery stays open, whether stents are needed, wound healing, and quality of life over two years.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Drug-coated balloon angioplasty with a non-compliant scoring balloon (DKutting) versus a non-compliant plain balloon, followed by a drug-coated balloon (Legflow XP).
- What this could lead to
- If the scoring balloon works better, it could reduce the need for stents and improve long-term blood flow in the legs, potentially saving limbs and improving quality of life for people with severe peripheral artery disease.
- What could go wrong
- This is a randomized trial, but the outcome depends on many factors, including the severity of disease and individual healing. The scoring balloon may not significantly outperform the standard approach, and there are risks of complications like vessel injury or restenosis.
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 142 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Dec 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2030
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 years and older
- 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: * ≥18 years of age. * Rutherford class 4-5. * Estimated life expectancy \>1 year, per investigator's judgment. * Significant atherosclerotic lesions (≥50% stenosis or chronic total occlusion) in the femoropopliteal segment, including in-stent restenosis. * Signed informed consent. * Willingness to comply with follow-up visits. * ≥1 patent infragenicular artery (\<50% stenosis) at the end of the procedure. * Target vessel diameter ≤8 mm. Exclusion Criteria: * Pregnant or planning pregnancy during the study. * Participation in another drug/device trial. * Inability to cross the target lesion with a guidewire. Successful crossing is defined as advancement of the guidewire tip distal to the target lesion without vessel perforation or flow-limiting dissection. * Inadequate treatment of proximal lesion (\>30% residual stenosis). * Severe calcification of the target vessel \[group 4 of Fanelli classification17 defined as circumferential calcification (270º-360º)\], evidenced before contrast injection or digital subtraction angiography. * Thrombus in the target vessel. * Anastomotic stenosis of a bypass. * Use of atherectomy, thrombectomy, laser, or similar devices. * Prior or planned above-the-ankle amputation of the target limb. * Coagulopathy, hypercoagulable state, bleeding diathesis, platelets \<80 000/µL or \>700 000/µL, or other blood disorder. * Gastrointestinal bleeding requiring transfusion within 3 months. * Contraindication to antiplatelet/anticoagulant/thrombolytic therapy. * Acute coronary syndrome within 30 days. * Stroke or TIA within 90 days. * Hypersensitivity/contraindication to nitinol. * Comorbidities precluding treatment or follow-up (per investigator). * Hypersensitivity/allergy to contrast not manageable medically. * Hypersensitivity/allergy to heparin, aspirin, paclitaxel, clopidogrel, or other antiplatelet/anticoagulant agents. * Contraindication to dual antiplatelet therapy.
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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 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.
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