Stem Cell Heart Injections During Laser Revascularization Surgery for Treatment of Chronic Ischemic Heart Disease
Study Details
Study Description
Brief Summary
Assess the safety and effectiveness of stem cell application with regard to improvement in regional myocardial function in patients receiving Trans-Myocardial Laser Revascularization (TMR) and stem cells.
| Condition or Disease | Intervention/Treatment | Phase |
|---|---|---|
|
Phase 1 |
Detailed Description
Multiple case experiences and studies have been published reviewing clinical experiences with Carbon Dioxide Trans-Myocardial Laser Revascularization (TMR) and autologous bone marrow derived cell application. These experiences have demonstrated perfusion improvements, ejection fraction improvements and improvements in angina or heart failure symptoms. The investigators elected to examine the use of CD133 positive (CD133+) BM-derived stem cells because of their pluripotent nature and the fact that during the CD133 selection process inflammatory cells present in the bone marrow are being discarded. CD133+ is a recently discovered marker for more primitive bone marrow derived multipotent stem and endothelial progenitor cells and is of particular interest in studies directed to therapeutic angiogenesis, as these cells have been shown to differentiate into endothelial and myogenic cell lines. Multiple studies have utilized BM derived cells for myocardial regeneration. Patients who received CD133+ cells showed improved perfusion at injection sites of stem cells leading to a significant increase in volume of left ventricular ejection fraction, regional wall motion in the infarct zone, and a reduction in end systolic left ventricular volume.
Study Design
Arms and Interventions
| Arm | Intervention/Treatment |
|---|---|
| Experimental: Phase I Open Label open label bone marrow derived autologous CD133+ selected stem cell application in patients receiving trans-myocardial laser revascularization to improve regional myocardial function as detailed below: Drug: CD133+ selected stem cells Dosage: Single injection of 0.1-0.2 ml around each laser channel Frequency: 10-20 channels Duration: Trans-Myocardial Revascularization |
Drug: Bone Marrow Derived Autologous CD133+ Selected Cell Product
Injection of bone marrow derived autologous CD133+ cell product into laser channels during Trans-Myocardial Revascularization
Other Names:
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Outcome Measures
Primary Outcome Measures
- Occurrence of Treatment-emergent serious adverse events (SAE) and adverse events [Assess from Procedure through 12 months]
Major adverse cardiac event and adverse events defined in the common toxicity criteria
Secondary Outcome Measures
- Change in left ventricular ejection fraction compared to baseline [Assessed at baseline, 6 months, and 12 months]
Measured as a percentage by Echocardiography
- Change in myocardial regional function compared to baseline [Assessed at baseline and 6 months]
Measured by nuclear scanning.
- Change in myocardial regional viability compared to baseline [Assessed at baseline and 6 months]
Measured by nuclear scanning.
- Change in distance walked compared to baseline [Assessed at baseline, 3 months, 6 months, and 12 months]
Measured in feet during a 6 minute walk test
- Change in quality of life associated with heart failure compared to baseline [Assessed at baseline, 3 months, 6 months, and 12 months]
Measured using the Kansas City Cardiomyopathy Questionnaire.
- Change in class of angina compared to baseline [Assessed at baseline, 3 months, 6 months, and 12 months.]
Measured using the Canadian Cardiovascular Society Grading Scale.
- Change in class of heart failure compared to baseline [Assessed at baseline, 3 months, 6 months, and 12 months.]
Measured using the New York Heart Association Questionnaire
- Change in regional left ventricular wall motion compared to baseline [Assessed at baseline, 6 months, and 12 months]
Measured using echocardiogram.
- Change in quality of life associated with angina compared to baseline [Assessed at baseline, 3 months, 6 months, and 12 months]
Measured using the Seattle Angina Questionnaire
Eligibility Criteria
Criteria
Inclusion Criteria:
-
Presence of at least two vessel coronary artery disease not amenable to direct revascularization
-
Area of interest defined as part of free left ventricular vall with reduced contractility
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Demonstration of reduced perfusion in the area of interest (>30% of free wall)
-
Global ejection fraction 30-45% with symptoms class >_ II on the NYHA scale
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Significant refractory angina defined as symptoms class >_ III that are refractory to maximal medical and anti-angina therapy
-
Expected survival of at least two years
Exclusion Criteria:
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Any condition that prevents successful stem cell collection or application, e.g. systemic infection, puncture for stem cell collection impossible
-
Any condition that may adversely affect bone marrow such as malignancy or prior irradiation to the pelvic bone
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Mitral valve insufficiency > moderate grade
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History of ventricular arrhythmias not controlled by medication and/or AICD
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Need for additional heart surgery (i.e. valve replacement)
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Emergency or salvage operation defined as within 48 hours of diagnosis
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Evidence of left ventricular thrombus
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Previous heart surgery within the last 6 months
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Increased Troponin T (> 3X ULN) in patients with unstable angina at time of intervention
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History of symptomatic carotid disease within the last 3 months prior to study intervention
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Ejection fraction < 30%
-
End stage renal disease
-
Untreatable cancer, current or within preceding 5 years
-
Severe COPD
Contacts and Locations
Locations
| Site | City | State | Country | Postal Code | |
|---|---|---|---|---|---|
| 1 | University of Kentucky Healthcare | Lexington | Kentucky | United States | 40536 |
Sponsors and Collaborators
- Michael Sekela
Investigators
- Principal Investigator: Michael Sekela, MD, University of Kentucky
Study Documents (Full-Text)
None provided.More Information
Publications
None provided.- 15-1051