Near-Infrared Spectroscopy and Ultrasound Investigation of Coronary Artery Plaque (LUNAR)
|Study Design:||Observational Model: Case Control
Time Perspective: Cross-Sectional
|Official Title:||Lipiscan and Ultrasound Interrogation of Atherosclerotic Coronary Arteries (LUNAR)|
- Near-Infrared Spectroscopy and Ultrasound Investigation of Coronary Artery Plaque [ Time Frame: 1 year ]The primary objective of this study is to characterize coronary artery blockages as determined by the Lipiscan combined NIRS-IVUS catheter in multiple coronary arteries.
|Study Start Date:||October 2011|
|Estimated Primary Completion Date:||October 2013 (Final data collection date for primary outcome measure)|
NIRS/IVUS of coronary artery
All patients will have an epicardial coronary artery stenosis of intermediate severity (>50% to <70% stenosis) (stenosis ≥20% - ≤70%) by invasive angiography in whom IVUS is planned to further clinical evaluation of lesion severity; or a severe epicardial coronary artery stenosis by invasive angiography and percutaneous coronary intervention (PCI) is planned for definitive treatment.
Device: NIRS/IVUS of coronary artery
Evaluation of coronary plaque by NIRS/IVUS.
Other Name: Infraredx
This is a prospective, observational, single-center registry that will enroll 100 patients. All patients presenting to Beaumont Hospital for elective invasive coronary angiography and possible ad hoc percutaneous coronary intervention balloon angioplasty will be considered for inclusion. Patients must meet all inclusion and exclusion criteria prior to consent. All information requested as part of this study will be obtained from clinical data as part of each subject's standard medical care. Cardiac catheterization and percutaneous coronary intervention will be performed according to standard guidelines and clinical practice. All aspects of clinical care of the patient will follow routine standards as determined by institutional policies, published clinical practice guidelines, and the treating physician.
After completion of routine invasive coronary angiography and upon determining that the patient has either (1) an epicardial de novo coronary artery lesion of indeterminate severity (>50% to <70% stenosis) that requires IVUS analysis for further delineation of stenosis (blockage) severity; or (2) a severe epicardial de novo coronary artery lesion that requires PCI for definitive treatment, combined NIR-IVUS imaging will be carried out in the target-vessel. Upon completion of NIRS-IVUS imaging of the target-vessel, percutaneous intervention will be performed in the standard fashion if deemed clinically appropriate. Upon completion of target-vessel intervention, NIRS-IVUS imaging will then be repeated in the target-vessel.
Upon completion of the treatment of the target-vessel, NIRS-IVUS will be performed in any other major epicardial vessel containing a stenosis ≥30% if deemed appropriate by the treating cardiologist.
Patients will be carefully monitored throughout their hospital stay and will be followed either by office visit or by telephone at 6 months (± 7 days); 12 months (± 14 days); 24 months (± 30 days); 36 months (± 30 days); 48 months (± 30 days); and 60 months (± 30 days).
The patient's medical records will be accessed to collect data about medical history and activities during the course of the study. All data will be collected by using standard case report forms. Follow up data after discharge will be collected using a phone script questionnaire . All data forms will include unique study identifiers to protect the participants personal identity. All data will be recorded in an Excel spreadsheet and kept on a secure computer requiring password entry.
There are no additional required medical procedures as part of this protocol beyond the use of the NIRS-IVUS catheter during the index procedure.
Please refer to this study by its ClinicalTrials.gov identifier: NCT01747525
|United States, Michigan|
|Royal Oak, Michigan, United States, 48073|
|Principal Investigator:||Simon R Dixon, MBChB||William Beaumont Hospitals|