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Calcified AtheromaSONARNCT05208749

ShOckwave ballooN or Atherectomy With Rotablation in Calcified Coronary Artery Lesions, the SONAR Trial

A study testing Rotablation of shockwave in people with Calcified Atheroma and Coronary Artery Disease, run by Universitaire Ziekenhuizen KU Leuven at 1 site in Belgium.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Percutaneous coronary interventions (PCI) is intended to relieve myocardial ischemia by improving blood flow in the epicardial coronary arteries. However, the efficacy of PCI may be compromised by incidental microvascular obstruction and peri-procedural myocardial infarction (PPMI), which occurs in about 10-15% of… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Calcified Atheroma, Coronary Artery Disease
What is being tested?
Rotablation of shockwave
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
170 participants
Where
1 siteBelgium
Study dates
4 Feb 2022to 1 Jan 2025
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patient older than 18 years.
  • The subject has stable or unstable angina pectoris, or a positive functional study for ischemia.
  • The subject is eligible for PCI.
  • The subject gives consent prior to study inclusion.
  • The subject has a calcified lesion that does not dilated fully after balloon angioplasty at 16atm with a ≥2.5mm non-compliant balloon.
  • The calcified lesion has a 50-90% diameter stenosis by angiographic assessment.

Who cannot join

  • Previous and/or planned brachytherapy of target vessel.
  • Pregnant and/or breast-feeding females or females who intend to become pregnant.
  • Patients who intend to have a major surgical intervention within 6 months of enrolment in the study.
  • Patients who previously participated in this study.
  • Subject has experienced an acute myocardial infarction 72 hours prior to the index procedure, as defined either by the presence of a new Q-wave in 2 or more contiguous leads, or by a CK greater than two times site upper reference limit (URL) with presence of CK-MB greater than the site URL.
  • The subject has suffered a stroke or transient ischemic neurological attack or cerebrovascular accident within the past six months, or has any known intracranial mass, arteriovenous malformation, aneurysm or other intracranial pathology.
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  • The subject has experienced a significant gastrointestinal or genitourinary bleed within the past six months, or has had any active bleeding within two months.
  • Planned revascularization of target vessel within 1 year after index procedure.
  • Lesions not ideal for Shockwave treatment:
  • Longer than 40mm.
  • The target vessel contains intraluminal thrombus.
  • The subject has had a prior stent in the target lesion, including a 5mm zone proximal and distal to the lesion.

Trial locations and contacts

1 site in 1 country.

Belgium1 site, 1 recruiting
  • University Hopsitals Leuven

    Leuven, Brabant, 3000

    Johan Bennett, MD PhD, 3216342466, sic@uzleuven.be

    Recruiting

Other trials in Belgium

About this study

Official title: A Randomized Controlled Trial Comparing Rates of Peri-procedural Myocardial Infarction After Intravascular Ultrasound and Rotational Atherectomy in Patients With Calcified Coronary Artery Lesions

Percutaneous coronary interventions (PCI) is intended to relieve myocardial ischemia by improving blood flow in the epicardial coronary arteries. However, the efficacy of PCI may be compromised by incidental microvascular obstruction and peri-procedural myocardial infarction (PPMI), which occurs in about 10-15% of cases and is associated with increased rates of major adverse cardiovascular events (MACE). The mechanism of PPMI is thought to be related to side branch occlusion, coronary artery dissection and acute microvascular damage caused by embolization of plaque debris during the PCI and is more frequently seen in calcified coronary artery disease. Calcium modification by rotational atherectomy (RA) results in peri-procedural myocardial infarction in 24% of cases and myocardial injury in 70% of cases. The Shockwave coronary intravascular lithotripsy (IVL) balloon catheter emits sonic pressure waves in a circumferential field causing the selective fracture of calcium, altering vessel compliance and permitting further expansion of the vessel wall. This provides a potentially safer alternative to other calcium-modifying devices since there is a low risk of dissection and perforation. It is also proposed that this IVL device reduces the risk of atheromatous embolization, which would reduce the risk of PPMI and microvascular dysfunction. The SONAR Trial is a pilot study measuring peri-procedural myocardial injury, PPMI and microvascular dysfunction in patients (with calcified coronary artery lesions not responding to usual balloon dilatation) randomized to RA or Shockwave IVL. The primary outcome is peri-procedural myocardial infarction. Secondary outcomes include peri-procedural myocardial injury, acute microvascular dysfunction, procedural success, and procedural costs.

Read the detailed description

In this multicentre, prospective, randomized-controlled open label pilot study the investigators will measure rates of peri-procedural myocardial infarction and changes in microvascular function after PCI in 170 patients (85 per arm) treated with Shockwave intravascular lithotripsy (IVL) versus RA. Patients with moderately and/or severely calcified coronary lesions, which are equally suitable for IVL and RA and do not dilate fully (100%) with an appropriately sized non-compliant balloon at 16 atmospheres, will be recruited. The calcified lesion must be suitable for both IVL and RA and the operator believes that either IVL or RA could be used. The primary outcome will be difference in the rate of peri-procedural myocardial infarction (Type 4a of the universal Definition of Myocardial Infarction). Peri-procedural myocardial injury and infarction will be defined by an increase in high-sensitivity Troponin T according to the Fourth Universal Definition of Myocardial Infarction,15 while microvascular dysfunction will be defined by an Index of Microcirculatory Resistance (IMR) of ≥25.16 Patients will undergo study-related clinical follow up at 30 days and 12 months.

Being tested
Rotablation of shockwave
Medical subject headings
Coronary Artery Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Rotablation of shockwaveDevice

    Patients will be randomized to treatment with rotablation or shockwave

Study groups in NCT05208749
Study groupRoleWhat they receive
RotablationActive comparatorUse of rotational atherectomy first-line if NC balloon does not fully open
Receives: Device: Rotablation of shockwave
Shockwave IVLActive comparatorUse of Shockwave IVLS first-line if NC balloon does not fully open
Receives: Device: Rotablation of shockwave

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Difference in peri-procedural myocardial infarction (Type 4a)

    Measurements of HS Troponine T at 8hrs, 16hrs and 24 hrs post PCI

    Measured: within 24 hours of index PCI

Secondary outcomes (5)
  1. Procedural differences (technical and procedural success, procedural characteristics and costs).

    procedural characteristics

    Measured: periprocedural

  2. Difference in change in IMR between the two groups.

    measurement of IMR before and after PCI

    Measured: periprocedural

  3. Clinical outcomes at 30-days and 1 year.

    clinical outcomes (Major adverse clinical events, including MI, TLR and cardiac death)

    Measured: 1 year

  4. IMR change post-PCI in calcified lesions

    measurement of IMR before and after PCI

    Measured: periprocedural

  5. Peri-procedural myocardial injury incidence

    Measurements of HS Troponine T at 8hrs, 16hrs and 24 hrs post PCI

    Measured: periprocedural

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Jan 2022
  2. Study start4 Feb 2022
  3. Primary completion1 Jan 2025 (estimated)
  4. Study completion1 Jan 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Other
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
170 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05208749
Sponsor's protocol ID
S64676
Acronym
SONAR
Status last verified
Jul 2024
First submitted
8 Dec 2021
Last updated
3 Jul 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Bennett J, McCutcheon K, Ameloot K, Vanhaverbeke M, Lesizza P, Castaldi G, Adriaenssens T, Minten L, Palmers PJ, de Hemptinne Q, de Wilde W, Ungureanu C, Vandeloo B, Colletti G, Coussement P, Van Mieghem NM, Dens J. ShOckwave ballooN or Atherectomy with Rotablation in calcified coronary artery lesions: Design and rationale of the SONAR trial. Cardiovasc Revasc Med. 2024 Mar;60:82-86. doi: 10.1016/j.carrev.2023.08.019. Epub 2023 Sep 9.

    PubMed 37714726

Questions about this trial

What is this clinical trial studying?

A study testing Rotablation of shockwave in people with Calcified Atheroma and Coronary Artery Disease, run by Universitaire Ziekenhuizen KU Leuven at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 3 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

Each site lists its own contact: choose the nearest one under Trial locations. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Difference in peri-procedural myocardial infarction (Type 4a) (time frame: within 24 hours of index PCI). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05208749, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Jul 2024.

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