Calcium Reduction by Orbital Atherectomy in Western Europe
CROWN
1 other identifier
observational
100
1 country
1
Brief Summary
In calcified lesions, optimal stent placement and expansion may prove to be challenging. Lesion preparation is necessary to facilitate optimal stenting in calcified lesions, for which orbital atherectomy can used. Therefore the aim of this study is to:
- 1.Show that orbital atherectomy effectuates optimal stent expansion
- 2.Investigate the mechanics of lesion preparation when using orbital atherectomy
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Mar 2024
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 10, 2023
CompletedFirst Posted
Study publicly available on registry
September 13, 2023
CompletedStudy Start
First participant enrolled
March 15, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2025
CompletedFebruary 29, 2024
September 1, 2023
1 year
March 10, 2023
February 28, 2024
Conditions
Outcome Measures
Primary Outcomes (1)
Primary imaging endpoint
Proportion of patients that reach stent expansion ≥ 5.5mm² as assessed by OCT derived MSA
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours
Secondary Outcomes (15)
Procedural success
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours
Target vessel failure (TVF)
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours, 30 days, 12 months
Major adverse cardiac events (MACE)
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours, 30 days, 12 months
Individual components of MACE and TVF
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours, 30 days, 12 months
Periprocedural myocardial infarction
Time of PCI Procedure - participants will be followed for the duration of hospital stay, an expected average of 24 hours
- +10 more secondary outcomes
Study Arms (1)
Observational cohort
Patients undergoing PCI of a severely calcified coronary lesion in need of OA to enable proper stent placement
Interventions
The Diamondback 360° Coronary orbital atherectomy system (OAS) is a device dedicated to debulk severely calcified coronary lesions to facilitate stent delivery and enable stent expansion with optimal results. The OAS's main mechanism is the synergistic rotation of the crown around its axis and simultaneously its endoluminal orbital motion. This effect allows blood to flow continuously and it facilitates heat dispersion which results in reduced heat damage to the arterial walls and subsequently to less myocardial damage, at the same time it softens the plaques tissue. It also appears that the microparticles created from sanding the artery plaques do not create any agglomeration to the branching arteries
Eligibility Criteria
Patients undergoing PCI of severely calcified coronary lesion in need of orbital atherectomy to enable proper stent placement and expansion
You may qualify if:
- De novo significant native coronary artery lesion
- The target lesion must have evidence of severe calcification: 1) presence of radiopacities noted without cardiac motion prior to contrast injection involving both sides of the arterial wall with calcification length of at least 15 mm and extend partially into the target lesion. 2) OR presence of ≥ 270° of calcium or lumen protruding calcified nodules at \>1 cross section by intravascular imaging (OCT)
- The target vessel reference diameter ≥ 2.5 mm and ≤ 4.0 mm and lesion must not exceed 40 mm in length
You may not qualify if:
- Left main disease
- Prior stenting of the target vessel
- Target lesion has thrombus or dissection
- Known left ventricular ejection fraction LVEF ≤ 25%
- Diagnosed with chronic renal failure (GFR \< 30 ml/min)
- Confirmed pregnancy
- Life expectancy \< 12 months
- Coronary anatomy that prevents delivery of OCT catheter
- Known allergy to soybean oil, egg yolk phospholipids, glycerin or sodium hydroxide
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Erasmus Medical Center
Rotterdam, South Holland, 3015GE, Netherlands
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Interventional Cardiologist
Study Record Dates
First Submitted
March 10, 2023
First Posted
September 13, 2023
Study Start
March 15, 2024
Primary Completion
April 1, 2025
Study Completion
April 1, 2025
Last Updated
February 29, 2024
Record last verified: 2023-09