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NCT07650578Not yet recruiting

Evaluation of Calcified Coronary Lesion Preparation With the Naviscore Scoring Balloon

MILOU: Minimize Intra Luminal Obstructive Underexpansion: A Prospective, Multi-Center Randomized Trial for the Evaluation of Calcified Coronary Lesion Preparation With the Naviscore Scoring Balloon

Source: ClinicalTrials.gov · Last updated 16 Jun 2026

Brief summary (registry, in English)

The purpose of this clinical study is to evaluate the effectiveness and safety of a specialized medical device, the Naviscore scoring balloon, in preparing calcified coronary artery narrowings before the implantation of a drug-eluting stent. During percutaneous coronary interventions, the presence of calcified plaques in the heart arteries represents a major challenge because it can prevent stents from expanding fully. When a stent remains under-expanded, it significantly increases the long-term risk of arterial re-narrowing or blood clot formation. To optimize stent expansion, appropriate preparation of the diseased vessel section before stent insertion is a critical phase. This study is a prospective, multi-center randomized trial designed to test the hypothesis that treating calcified coronary lesions with the Naviscore scoring balloon will achieve a better stent expansion and a larger final minimal stent area compared to standard lesion preparation using regular non-compliant balloons. Eligible participants will be randomized in a one-to-one ratio to one of these two lesion preparation strategies. For all included patients, standard drug-eluting stents will be deployed. The study will use intravascular ultrasound imaging to evaluate the final minimum area of the stent directly inside the treated artery at the site of the highest initial calcium burden. Participant health and clinical outcomes will be monitored for up to twelve months following the procedure.

Status (registry)
Not yet recruiting
Study type
Interventional
Enrollment
200 (estimated)
First submitted
10 Jun 2026
Start date
Jul 2026
Primary completion date
Jun 2027
Lead sponsor
University of Mons
NCT number
NCT07650578

What you commit to

  • Study type: Interventional
  • Planned participants: 200
  • From Jul 2026 to the primary completion date, Jun 2027
  • 14 sites in 4 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Contraindication to dual antiplatelet therapy.
  • Major surgical intervention planned within one year.

Other illness

  • Lesion responsible of a ST elevated Myocardial Infarction (STEMI)

Age

  • Patient \<18 years old.

Other

  • Pregnant female.
  • Thrombocytopenia (under 100 000).
  • Significant left main lesion.
  • Chronic total occlusion.
  • Lesion in a graft.
  • In-stent restenosis lesion.

Who the study is looking for

  • Patient written consent is given, ≥18 years.
  • A de novo lesion to be treated in a vessel between 2.5 and 4.0 mm.
  • Moderate to heavily calcified lesions detected by coronary angiography on two orthogonal views, and confirmed by IVUS if the lesion can be crossed with the catheter.

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (14)

Sites in registry order. Save your city in your profile to sort them by distance.

SiteCityCountrySite status
Imelda
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BonheidenBelgiumUnknown status
Hôpital Erasme - Cliniques universitaires de Bruxelles
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BrusselsBelgiumUnknown status
Hôpital Vivalia
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LibramontBelgiumUnknown status
CHR de la Citadelle
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LiègeBelgiumUnknown status
Humani CHU Charleroi - Chimay
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LodelinsartBelgiumUnknown status
CHU HELORA site Kennedy
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MonsBelgiumUnknown status
Hospital Universitari de Bellvitge
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BarcelonaSpainUnknown status
Hospital de Sant Pau
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BarcelonaSpainUnknown status
Hospital San Pedro De Alcántara
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CáceresSpainUnknown status
Hospital Puerta del Mar
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CadizSpainUnknown status
Hospital La Fe
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ValenciaSpainUnknown status
Hospital Clínico Universitario de Valladolid
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ValladolidSpainUnknown status
INCCI Haerz Zenter
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LuxembourgLuxembourgUnknown status
Centro Hospitalar de Vila Nova de Gaia/Espinho
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Vila Nova de GaiaPortugalUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.