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Trial record 4 of 20 for:    Stents | Recruiting, Not yet recruiting, Available Studies | NIH, U.S. Fed

SOLEMN Study - Synergy Optical Coherence Tomography in Left Main PCI (SOLEMN)

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ClinicalTrials.gov Identifier: NCT03474432
Recruitment Status : Not yet recruiting
First Posted : March 22, 2018
Last Update Posted : March 22, 2018
Sponsor:
Information provided by (Responsible Party):
Mladen I. Vidovich, Jesse Brown VA Medical Center

Brief Summary:

BACKGROUD:

Percutaneous coronary intervention (PCI) is increasingly used to treat unprotected left main coronary artery stenosis. Protected LM PCI is considered standard of care in most centers.

OCT allows for precise determination of stent placement, stent expansion and apposition. The pattern of vessel healing can be very precisely studied if immediate post-stent implantation OCT/IVUS data is compared to the 6-month post-PCI interval.

While OCT cannot be optimally used for ostial lesion imaging, IVUS can be used to image ostial lesions/stent placement.

Optimal and consistent vessel healing is particularly important in LM PCI where stent thrombosis is a potential complication with serious adverse outcome.

HYPOTHESIS:

Due to the absorption of the polymer of the Boston Scientific Synergy Stent over time, early strut coverage patterns and timeline may be different than previously observed in DES and BMS stents in LM PCI. Late acquired stent malapposition (LASM) is expected to differ from previous observations with traditional DES/BMS.

Stent coverage in LM PCI will be studied with OCT or IVUS at six and 12 months and compared to OCT or IVUS at the time of stent implantation.

OCT/IVUS data will be analyzed in a core lab (CRF) and correlated with clinical outcomes at 6 and 12 months.


Condition or disease Intervention/treatment Phase
Percutaneous Coronary Intervention Optical Coherence Tomography In-stent Coronary Artery Restenosis Device: Optical Coherence Tomography Not Applicable

Detailed Description:

The proposed study is a multicenter, observational, prospective, single-arm study of stent strut coverage of patients undergoing LM PCI.

Baseline quantitative coronary analysis (QCA) will be performed at the time of stent implantation.

Stent coverage in LM PCI will be studied with OCT at 3 and 12 months and compared to baseline OCT at the time of stent implantation.(31, 32)

OCT/data will be analyzed in a core lab (CTC CRF) and correlated with clinical outcomes at 3 and 12 months.

Primary Endpoint

• 3-month stent strut coverage in LM PCI

Secondary Endpoints

  • 12-month stent strut coverage in LM PCI
  • 3-month late acquired stent malapposition (LASM)
  • 12-month late acquired stent malapposition (LASM)
  • One-month LM Synergy stent safety
  • 1-, 3- and 12-month MACE
  • 1-, 3- and 12-month Stent Thrombosis (ST) (ARC definition)

    75 patients undergoing LM PCI (protected or unprotected) with Boston Scientific Synergy™ stent.

The goal is to enroll 75 patients from up to 10 VA sites and an enrollment period of 3 years, each site is expected to include 7-10 patients during the study period.

After a total of 75 patients are enrolled the study will be closed for further enrollment.

Eligible patients will be screened at each participating center and those who had undergone LM PCI with Boston Scientific Synergy™ stent and where OCT was performed during the index procedure will be eligible. The index procedure may be performed by any interventional cardiologist - this is specifically needed in order to maintain equipoise on the part of stent choice and use of OCT.

At the end of the study enrollment period, the proportion of patients at each site treated with Synergy stents vs. non-Synergy stents and the proportion of patients that underwent OCT imaging during LM PCI will be collected.

Eligible patients will be approached and consented for inclusion in the SOLEMN trial after the initial procedure.

Study Duration

Patients will be followed for 12 months after the index procedure. At one month, clinical follow-up will be performed (clinic or telephone). At 3 months, the angiography and OCT will be performed. At 12 months, the final angiography and OCT will be performed. No further follow-up is planned after completion of the 3- and 12-month angiography and OCT.


Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 75 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: SOLEMN Study - Synergy Optical Coherence Tomography in Left Main PCI
Estimated Study Start Date : April 15, 2018
Estimated Primary Completion Date : December 2019
Estimated Study Completion Date : December 2019

Arm Intervention/treatment
Optical Coherence Tomography
Patients who have undergone clinically-indicated PCI of LM where OCT was performed as part of the routine index procedure will be approached for the study and enrolled if eligible.
Device: Optical Coherence Tomography
OCT will be performed with the St. Jude OCT system. Detection of metallic stent struts will be performed automatically with manual adjustments made as necessary. Stent area tracings will be automatically performed by interpolated contours connecting the center point of the luminal surface of each detected metallic strut. Stent expansion will be determined as the minimum stent area divided by the average reference lumen area and presented as a percentage. Neo-intimal hyperplasia (NIH) area will be determined in follow-up examinations as the area between the stent and lumen contours. Incomplete stent apposition (ISA) area will be determined as the area between the stent contour and the lumen contour at the site of malapposed struts, in a region not overlying a side branch ostium.
Other Name: Dragonfly OPTIS Imaging Catheter




Primary Outcome Measures :
  1. Stent strut coverage in LM PCI [ Time Frame: 3 Months ]
    The stent strut coverage is specifically defined as Percentage of Uncovered Stent Struts. The Percentage of Uncovered Stent Struts is the number of struts without distinct overlying tissue, in which the luminal reflection of the strut surface is directly interfacing with the lumen, divided by total number of analyzable struts.


Secondary Outcome Measures :
  1. 12-month stent strut coverage in LM PCI [ Time Frame: 12 month ]
    The stent strut coverage is specifically defined as Percentage of Uncovered Stent Struts. The Percentage of Uncovered Stent Struts is the number of struts without distinct overlying tissue, in which the luminal reflection of the strut surface is directly interfacing with the lumen, divided by total number of analyzable struts.

  2. Late Acquired Stent Malapposition (LASM) [ Time Frame: 3 and 12 months ]
    Malapposition will be defined as a measured distance greater than the total thickness of the stent metal plus polymer of the stent.

  3. Major Adverse Cardiac Event (MACE) [ Time Frame: 1, 3 and 12 months ]

    MACE include:

    • Death
    • Myocardial infarction
    • Stroke (cerebrovascular accident or CVA)
    • Urgent revascularization
    • Repeat revascularization
    • Bleeding
    • Stent thrombosis
    • Rehospitalization



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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Criteria

Inclusion criteria:

  • Age 18 years or greater;
  • Left Main CAD, defined as ≥ 50% diameter stenosis and amenable to re-vascularization by PCI;
  • Willing and able to give informed consent. The patients must be able to comply with study procedures and follow-up.
  • Ability to comply with minimum of 6 months of DAPT after the index procedure.
  • Unprotected Left Main PCI
  • Protected Left Main PCI

Exclusion criteria:

  • Coexisting conditions that limit life expectancy to less than 12 months or that could affect patient's compliance with the protocol;
  • Serum creatinine greater than 2.0 mg/dL;
  • Cardiogenic shock;
  • STEMI;
  • Non-STEMI, if the cardiac troponin is not stable or starting to decline;
  • Pregnancy;
  • Inability to take dual antiplatelet therapy for 6 months;
  • Any target lesion with previously placed stent.
  • Patients disqualified for CABG surgery.
  • Contraindications for OCT use:

    1. Bacteremia or sepsis
    2. Major coagulation system abnormalities
    3. Severe hemodynamic instability or shock
    4. Patients diagnosed with coronary artery spasm
    5. Acute renal failure

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03474432


Contacts
Contact: Mladen I Vidovich, MD 312-569-7099 mladen.vidovich@va.gov
Contact: Decebal Griza, MD 312-569-6129 Decebal.Griza@va.gov

Locations
United States, Alabama
Birmingham VA Medical Center
Birmingham, Alabama, United States, 35233
United States, Arizona
Southern Arizona VA Health Care System
Tucson, Arizona, United States, 85723
United States, California
VA Long Beach Healthcare
Long Beach, California, United States, 90822
San Francisco VA
San Francisco, California, United States, 94121
United States, Colorado
VA Eastern Colorado Health Care System
Denver, Colorado, United States, 80220
United States, Georgia
Atlanta VA Medical Center
Atlanta, Georgia, United States, 30033
United States, Ohio
VA Louis Stokes Cleveland VA Medical Center
Cleveland, Ohio, United States, 44106
United States, Oklahoma
Oklahoma City VA Health Care System
Oklahoma City, Oklahoma, United States, 73104
United States, Pennsylvania
VA Pittsburgh Healthcare System
Pittsburgh, Pennsylvania, United States, 15240
United States, South Carolina
Ralph H. Johnson VA Medical Center
Charleston, South Carolina, United States, 29401
United States, Texas
Dallas VA Medical Center
Dallas, Texas, United States, 75216
San Antonio VA
San Antonio, Texas, United States, 78028
Sponsors and Collaborators
Jesse Brown VA Medical Center
Investigators
Principal Investigator: Mladen I Vidovich, MD Jesse Brown VA Medical Center
  Study Documents (Full-Text)

Documents provided by Mladen I. Vidovich, Jesse Brown VA Medical Center:
Informed Consent Form  [PDF] January 2, 2018


Responsible Party: Mladen I. Vidovich, Associate Professor of Medicine, University of Illinois at Chicago and Chief of Cardiology, Jesse Brown VA Medical Center, Jesse Brown VA Medical Center
ClinicalTrials.gov Identifier: NCT03474432     History of Changes
Other Study ID Numbers: JBVA-MIV-001
First Posted: March 22, 2018    Key Record Dates
Last Update Posted: March 22, 2018
Last Verified: March 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: No
Pediatric Postmarket Surveillance of a Device Product: No

Additional relevant MeSH terms:
Coronary Restenosis
Coronary Stenosis
Coronary Disease
Myocardial Ischemia
Heart Diseases
Cardiovascular Diseases
Vascular Diseases