CANARY: Coronary Assessment by Near-infrared of Atherosclerotic Rupture-prone Yellow (CANARY)

A Randomized Pilot Trial of the Use of a Distal Protection Device to Prevent Peri-procedural MI During Dilation of Coronary Stenoses Caused by Plaques With Large Lipid Cores

The CANARY (Coronary Assessment by Near-infrared of Atherosclerotic Rupture-prone Yellow) Study is a pivotal trial to evaluate criteria for defining a Lipid Core Plaque (LCP) that is at high risk of rupturing during standard of care therapy and causing intra-procedural complications. If plaques that require treatment are at higher than normal risk of causing intra-procedural complications, some life threatening, the treating physician is better informed and may opt to take precautionary measures to mitigate the risk or result of a complication. The CANARY Study is also designed to evaluate the feasibility of using a distal embolization protection device (EPD) as a means to prevent heart attacks triggered by the embolization of plaque during standard care therapy. It is thought that the EPD will prevent plaque from going downstream during treatment and obstructing other heart vessels. These obstructions could cause heart attacks by preventing blood from reaching heart muscle tissue.

Study Overview

• Status: Terminated
• Conditions: Myocardial Infarction; Coronary Atherosclerosis; Coronary Plaque Embolization
• Intervention / Treatment: Device: Embolic Protection Device (EPD); Device: Intracoronary Spectroscopy and Ultrasonic Evaluation; Device: Angioplasty and Stent Implant

• Study Type: Interventional
• Enrollment (Actual): 85
• Phase: Not Applicable

Contacts and Locations

Study Locations

• United States
  • Arizona
    • Scottsdale, Arizona, United States, 85258
      • Scottsdale Healthcare Shea
  • California
    • San Francisco, California, United States, 94121
      • San Francisco Veterans Affairs Medical Center
  • District of Columbia
    • Washington, D.C., District of Columbia, United States, 20010
      • Washington Hospital Center
  • Michigan
    • Grand Rapids, Michigan, United States, 49503
      • Spectrum Health System
    • Royal Oak, Michigan, United States, 48073
      • William Beaumont Hospital
  • New York
    • New York, New York, United States, 10029
      • Mount Sinai School of Medicine Hospital
  • Pennsylvania
    • Harrisburg, Pennsylvania, United States, 17101
      • Pinnacle Health Cardiovascular Insititute
  • South Carolina
    • Charleston, South Carolina, United States, 29403
      • Medical University of South Carolina Hospital
  • Texas
    • Dallas, Texas, United States, 75216
      • Veterans Affairs North Texas Health Care Systems

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria

• Subject is at least 18 years of age
• Subject is scheduled for an elective coronary catheterization
• Subject is willing and able to provide informed written consent prior to the index catheterization
• LipiScan IVUS CIS use is not contra-indicated
• At least one submitted Chemogram is obtained entirely within a native coronary artery
• Patient has been diagnosed with: stable angina (CCS I or CCS II);a positive functional test for ischemia (within the preceding 30 days); OR Stabilized acute coronary syndrome (unstable angina (CCS III, or CCS IV), non STEMI, or STEMI with no chest pain or other cardiac symptoms for >24 hours
• Blood cardiac biomarker (i.e. troponin I, CK-MB) levels less than the local laboratory ULN within 12 hours of the time of PCI guidewire placement.
• Subject is to undergo PCI of a single lesion in a single native coronary artery during the enrollment procedure.
• There is prior intent to treat the target lesion as part of the patient's clinical care.
• The target lesion angiographic stenosis visually estimated as >=50% and <100%
• The target lesion reference vessel diameter must be >=2.5mm (visually estimated)
• Total target lesion length must be ≤60 mm (visually estimated)
• The minimum landing zone requirements for the FilterWire device can be met.
• There must be no major side branches (>2.0 mm in diameter) within the target lesion.
• There must be no major side branches (>2.0mm in diameter) between the target lesion and the filter nitinol loop landing zone.

Exclusion Criteria

• Subject is currently, or within the preceding 30 days, participating in a device or pharmaceutical treatment protocol.
• Subject life expectancy at time of enrollment is less than 2 years;
• Subject is pregnant or suspected to be pregnant at time of enrollment
• Prior coronary bypass graft surgery (CABG)
• PCI performed within the 24hours prior to the start of the study procedure
• A PCI is planned within the 30 days following the enrollment procedure.
• Unable to take aspirin and a thienopyridine for at least 30 days
• Patient experienced a STEMI or non STEMI within the past 24 hours
• Documented LVEF <25%
• the patient has multi-lesion or multi-vessel disease requiring revascularization of multiple lesions during the enrollment catheterization
• Any angiographic evidence of thrombus in any coronary artery
• There is evidence of dissection or procedural complication prior to randomization
• Patient has unprotected left main (≥50% stenosis) or left main equivalent disease
• Target Lesion is located in the distal segment of the target native coronary artery
• Proximal bound of the target lesion is located within 3mm of the ostium of the target vessel or major side branch (>2mm diameter by visual estimate)
• Target lesion is excessively calcified

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

3

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: (+)HR-LCP and EPD; These subjects will meet all angiographic criteria.The target plaque will contain a LipiScan IVUS signal that meets the Higher Risk Lipid Core Plaque (HR-LCP) definition contained in the protocol. 27 Subjects who meet this criteria will be randomized to standard pre-dilation and stent implantation with an embolic protection device (EPD)in place prior to any angioplasty.	Device: Embolic Protection Device (EPD); The embolic protection device consists of a protection wire, a delivery sheath, a retrieval sheath and various accessories (wire torque device, introducer, dilator tool). The wire of the EPD is used as a standard 0.014" steerable guide wire. The filter is designed for embolic debris capture while maintaining continuous blood flow. At the completion of the procedure, the filter and its contents are removed using the retrieval sheath and then removed from the patient.; Other Names: Filterwire; Device: Intracoronary Spectroscopy and Ultrasonic Evaluation; This intervention requires a near infrared imaging catheter equipped with an intravascular ultrasonic transducer be used to evaluate the coronary artery wall prior to treatment and after treatment. This system detects the lipid containing plaques that may be the source of embolic debris released during standard angioplasty and stent placement.; Other Names: LipiScan IVUS Coronary Imaging System; LipiScan IVUS; LipiScan; Chemogram; Device: Angioplasty and Stent Implant; The target plaque will be treated with a pre-dilation with a standard angioplasty balloon sized to within 0.5mm of the diameter of the reference vessel diameter. The physician will then implant a coronary artery stent that is appropriately sized for the reference vessel diameter.
Placebo Comparator: (+)HR-LCP and No EPD (standard of care); These subjects will meet all angiographic criteria.The target plaque will contain a LipiScan IVUS signal that meets the Higher Risk Lipid Core Plaque (HR-LCP) definition contained in the protocol. 27 Subjects who meet this criteria will be randomized to standard pre-dilation and stent implantation without an embolic protection device (EPD)in place prior to any angioplasty.	Device: Intracoronary Spectroscopy and Ultrasonic Evaluation; This intervention requires a near infrared imaging catheter equipped with an intravascular ultrasonic transducer be used to evaluate the coronary artery wall prior to treatment and after treatment. This system detects the lipid containing plaques that may be the source of embolic debris released during standard angioplasty and stent placement.; Other Names: LipiScan IVUS Coronary Imaging System; LipiScan IVUS; LipiScan; Chemogram; Device: Angioplasty and Stent Implant; The target plaque will be treated with a pre-dilation with a standard angioplasty balloon sized to within 0.5mm of the diameter of the reference vessel diameter. The physician will then implant a coronary artery stent that is appropriately sized for the reference vessel diameter.
Placebo Comparator: (-)HR-LCP and No EPD (standard of care); These subjects will meet all angiographic criteria.The target plaque will NOT contain a LipiScan IVUS signal that meets the Higher Risk Lipid Core Plaque (HR-LCP) definition contained in the protocol. 54 Subjects who meet this criteria will be assigned (not randomized) to standard pre-dilation and stent implantation without an embolic protection device (EPD)in place prior to any angioplasty.	Device: Intracoronary Spectroscopy and Ultrasonic Evaluation; This intervention requires a near infrared imaging catheter equipped with an intravascular ultrasonic transducer be used to evaluate the coronary artery wall prior to treatment and after treatment. This system detects the lipid containing plaques that may be the source of embolic debris released during standard angioplasty and stent placement.; Other Names: LipiScan IVUS Coronary Imaging System; LipiScan IVUS; LipiScan; Chemogram; Device: Angioplasty and Stent Implant; The target plaque will be treated with a pre-dilation with a standard angioplasty balloon sized to within 0.5mm of the diameter of the reference vessel diameter. The physician will then implant a coronary artery stent that is appropriately sized for the reference vessel diameter.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Evidence of Peri-procedural Myocardial Infarction as the result of standard care stenting procedure.	The occurrence of a peri-procedural MI in the context of the CANARY trial will be defined as an elevation of troponin I (cTnI), or troponin T (cTnT) above three times the upper limit of normal (>3xULN).	<24 hours after percutaneous coronary intervention

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Evidence of Peri-procedural Myocardial Infarction as the result of standard	The occurrence of a peri-procedural MI in the context of the CANARY trial will be defined as an elevation of creatine kinase myocardial band (CK-MB) biomarker above three times the upper limit of normal (>3xULN).	<24 hours after percutaneous coronary intervention
Frequency of Intraprocedural complications related to the treatment of the Target Plaque.	Instances of TIMI flow degradation, Procedural Success, Dissection/Perforations, abrupt closure, thrombus generation, etc will be recorded to determine the any gross differences in event rates between the study groups.	Catheterization Start Time to Completion Time.
Composite MACE	The composite major adverse cardiac event rate (death, myocardial infarction, revascularization of the target lesion or vessel, cerebral vascualar accident will be reported for all groups at 30 days from the initial treatment (+/- 7 days).	from discharge from initial hospital stay to 30 (+/-7days) following the procedure
Composite MACE	The composite major adverse cardiac event rate (death, myocardial infarction, revascularization of the target lesion or vessel, cerebral vascualar accident will be reported for all groups at 365 days from the initial treatment (+/- 30 days).	365 days (+/- 30days) from initial procedure

Collaborators and Investigators

• Sponsor: Infraredx
• Investigators: Principal Investigator: Gregg W. Stone, M.D., Columbia University

Study record dates

Study Major Dates

• Study Start (Actual): May 1, 2011
• Primary Completion (Actual): September 1, 2014
• Study Completion (Actual): November 1, 2016

Study Registration Dates

• First Submitted: December 28, 2010
• First Submitted That Met QC Criteria: December 29, 2010
• First Posted (Estimate): December 30, 2010

Study Record Updates

• Last Update Posted (Actual): June 12, 2017
• Last Update Submitted That Met QC Criteria: June 8, 2017
• Last Verified: June 1, 2017

More Information

Terms related to this study

• Keywords: percutaneous coronary intervention; Myocardial Infarction; embolization; vulnerable plaque; necrotic core; coronary plaque rupture
• Additional Relevant MeSH Terms: Ischemia; Pathologic Processes; Necrosis; Heart Diseases; Cardiovascular Diseases; Vascular Diseases; Arteriosclerosis; Arterial Occlusive Diseases; Coronary Disease; Myocardial Infarction; Infarction; Coronary Artery Disease; Myocardial Ischemia; Atherosclerosis
• Other Study ID Numbers: 0114