Balloon vs stent: which works best for Rock-Hard heart plaques?
NCT ID NCT06657833
First seen Jun 27, 2026 · Last updated Aug 05, 2026 · Updated 2 times
Summary
This study tests two ways to treat hardened calcium deposits in heart arteries. After using sound waves to break up the calcium, doctors will either place a drug-coated balloon or a drug-coated stent. The trial will follow 128 patients for 9 months to see which approach keeps arteries open better and has fewer complications.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- drug-eluting balloon or drug-eluting stent
- What this could lead to
- If successful, this could show that balloons work as well as stents for tough calcium deposits, offering a simpler option for some heart patients.
- What could go wrong
- This is a mid-sized trial (128 people) and results may not apply to all patients. The study is not blinded, so bias is possible. Risks include vessel injury or blockage.
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 128 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2024
- Expected to finish
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Oct 2027
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: Patients must meet all inclusion criteria: * Patients \>18 years admitted for stable coronary artery disease or acute coronary syndromes and indication for percutaneous coronary intervention (PCI) and * Severe coronary lesion with calcified nodule, confirmed with intracoronary imaging (optical coherence tomography or intravascular ultrasound) and; * Lesion to treat in a vessel between 2.5 and 4 mm. Exclusion Criteria: Patients must not meet any criteria * Inability to provide oral and written informed consent or unwillingness to come back for systematic angiographic follow-up. * Pregnant or breastfeeding patients. * Cardiogenic Shock or Cardiac arrest at the moment of the index procedure. * Impossibility to maintain double antiplatelet treatment during at least 1 month. * Life expectancy \<1 year. * Index lesion at left main stem. * Aorto-ostial lesion. * Target lesion previously treated with stents or DEB. * High thrombus burden in the target lesion (TIMI thrombus scale≥3).
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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
14 sites in 2 countries. 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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Hospital Clínico San Carlos
RECRUITINGMoncloa-Aravaca, 28040, Spain
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Hospital Clínico Universitario de Valladolid
RECRUITINGValladolid, 47003, Spain
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Hospital Del Mar
RECRUITINGBarcelona, 08003, Spain
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Hospital General Universitario de Valencia
RECRUITINGValencia, 46014, Spain
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Hospital Universitario 12 de Octubre
RECRUITINGMadrid, 28041, Spain
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Hospital Universitario Miguel Servet
RECRUITINGZaragoza, 50009, Spain
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Hospital Universitario Puerta de Hierro
RECRUITINGMadrid, 28222, Spain
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Hospital Universitario de Galdakao-Usansolo
RECRUITINGGaldakao, 48960, Spain
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Hospital Universitario de La Paz
RECRUITINGFuencarral-El Pardo, 28046, Spain
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Hospital Universitario de León
RECRUITINGLeón, 24008, Spain
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Hospital Universitario de Navarra
RECRUITINGPamplona, 31008, Spain
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Hospital Universitario de Vigo
RECRUITINGVigo, 36312, Spain
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Hospital Universitario y Politécnico La Fe
RECRUITINGValencia, 46026, Spain
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Leiden University Medical Center
RECRUITINGLeiden, Netherlands
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