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The Percutaneous Stem Cell Injection Delivery Effects on Neomyogenesis Pilot Study (The POSEIDON-Pilot Study)

This study has been completed.
Sponsor:
Collaborators:
National Heart, Lung, and Blood Institute (NHLBI)
The EMMES Corporation
Information provided by (Responsible Party):
Joshua M Hare, University of Miami
ClinicalTrials.gov Identifier:
NCT01087996
First received: March 15, 2010
Last updated: March 4, 2013
Last verified: March 2013
History of Changes
  Purpose

The technique of transplanting progenitor cells into a region of damaged myocardium, termed cellular cardiomyoplasty, is a potentially new therapeutic modality designed to replace or repair necrotic, scarred, or dysfunctional myocardium. Ideally, graft cells should be readily available, easy to culture to ensure adequate quantities for transplantation, and able to survive in host myocardium; often a hostile environment of limited blood supply and immunorejection. Whether effective cellular regenerative strategies require that administered cells differentiate into adult cardiomyocytes and couple electromechanically with the surrounding myocardium is increasingly controversial, and recent evidence suggests that this may not be required for effective cardiac repair. Most importantly, transplantation of graft cells should improve cardiac function and prevent adverse ventricular remodeling. To date, a number of candidate cells have been transplanted in experimental models, including fetal and neonatal cardiomyocytes, embryonic stem cell-derived myocytes, tissue engineered contractile grafts, skeletal myoblasts, several cell types derived from adult bone marrow, and cardiac precursors residing within the heart itself. There has been substantial clinical development in the use of whole bone marrow and skeletal myoblast preparations in studies enrolling both post-infarction patients, and patients with chronic ischemic left ventricular dysfunction and heart failure. The effects of bone-marrow derived mesenchymal stem cells (MSCs) have also been studied clinically.

Currently, bone marrow or bone marrow-derived cells represent highly promising modality for cardiac repair. The totality of evidence from trials investigating autologous whole bone marrow infusions into patients following myocardial infarction supports the safety of this approach. In terms of efficacy, increases in ejection fraction are reported in the majority of the trials.

Chronic ischemic left ventricular dysfunction resulting from heart disease is a common and problematic condition; definitive therapy in the form of heart transplantation is available to only a tiny minority of eligible patients. Cellular cardiomyoplasty for chronic heart failure has been studied less than for acute MI, but represents a potentially important alternative for this disease.


Condition Intervention Phase
Stem Cell Transplantation
 Biological: Auto-hMSCs
Biological: Allo-hMSCs
 Phase 1
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Open Label
Primary Purpose: Treatment
Official Title: A Phase I/II, Randomized Pilot Study of the Comparative Safety and Efficacy of Transendocardial Injection of Autologous Mesenchymal Stem Cells Versus Allogeneic Mesenchymal Stem Cells in Patients With Chronic Ischemic Left Ventricular Dysfunction Secondary to Myocardial Infarction

Further study details as provided by University of Miami:

Primary Outcome Measures:
  • Incidence of TE-SAE define as composite of death, non-fatal MI, stroke, hospitalization for worsening heart failure, cardiac perforation, pericardial tamponade, ventricular arrhythmias >15 sec. or with hemodynamic compromise or atrial fibrillation [ Time Frame: One month post-catheterization ] [ Designated as safety issue: Yes ]

Secondary Outcome Measures:
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline and 13-month infarct scar size (ISS) as determined by delayed contrast-enhanced CT [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline and 13-month regional left ventricular function (at the site of autologous cell injections) as determined by CT [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline and 13-month regional left ventricular wall thickening as determined by CT. [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline, 6 month (echocardiogram only), and 13-month left ventricular end diastolic wall thickness as determined by CT and echocardiogram [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline, 6 month (echocardiogram only), and 13-month left ventricular ejection fraction, end diastolic and end systolic volumes, as determined [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
  • CT and Echocardiographic-derived measures of left ventricular function: - Difference between the baseline and 13-month left ventricular regional myocardial perfusion as determined by CT. [ Time Frame: Baseline and Month 6 and Month 13 post-catheterization ] [ Designated as safety issue: No ]
Enrollment: 30
Study Start Date: March 2010
Study Completion Date: October 2012
Primary Completion Date: April 2011 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Auto-hMSCs
Participants will receive an injection of 20 million, 100 million or 200 million autologous human mesenchymal stem cells.
 Biological: Auto-hMSCs
Biological: Autologous human mesenchymal stem cells (Auto-hMSCs) Participants will receive 40 million cells/mL delivered in either a dose of 0.5 mL per injection x 1 injection for a total of 0.2 x 10^8 (20 million) Auto-hMSCs, a dose of 0.5 mL per injection x 5 injections for a total of 1 x 10^8 (100 million) Auto-hMSCs, or a dose of 0.5 mL per injection x 10 injections for a total of 2 x 10^8 (200 million) Auto-hMSCs. The injections will be administered transendocardially during cardiac catheterization using the Biocardia Helical Infusion Catheter.
Experimental: Allo-hMSCs
Participants will receive an injection of 20 million, 100 million or 200 million allogeneic human mesenchymal stem cells.
 Biological: Allo-hMSCs
Biological: Allogeneic human mesenchymal stem cells (Allo-hMSCs) Participants will receive 40 million cells/mL delivered in either a dose of 0.5 mL per injection x 1 injection for a total of 0.2 x 10^8 (20 million) Allo-hMSCs, a dose of 0.5 mL per injection x 5 injections for a total of 1 x 10^8 (100 million) Allo-hMSCs, or a dose of 0.5 mL per injection x 10 injections for a total of 2 x 10^8 (200 million) Allo-hMSCs. The injections will be administered transendocardially during cardiac catheterization using the Biocardia Helical Infusion Catheter.

  Eligibility
Ages Eligible for Study:   21 Years to 90 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Diagnosis of chronic ischemic left ventricular dysfunction secondary to MI.
  • Be a candidate for cardiac catheterization.
  • Been treated with appropriate maximal medical therapy for heart failure or post-infarction left ventricular dysfunction.
  • Ejection fraction between 20% and 50%.
  • Able to perform a metabolic stress test.

Exclusion Criteria:

  • Baseline glomerular filtration rate <50 ml/min/1.73m2.
  • Presence of a mechanical aortic valve or heart constrictive device.
  • Documented presence of aortic stenosis (aortic stenosis graded as ≥+2 equivalent to an orifice area of 1.5cm2 or less).
  • Documented presence of moderate to severe aortic insufficiency (echocardio- graphic assessment of aortic insufficiency graded as ≥+2).
  • Evidence of a life-threatening arrhythmia (nonsustained ventricular tachycardia ≥20 consecutive beats or complete heart block) or QTc interval >550 ms on screening ECG. In addition; patients with sustained or a short run of ventricular tachycardia on ECG or 48 hour Ambulatory ECG during the screening period will be removed from the protocol.
  • Documented unstable angina.
  • AICD firing in the past 60 days prior to the procedure.
  • Be eligible for or require coronary artery revascularization.
  • Have a hematologic abnormality as evidenced by hematocrit < 25%, white blood cell < 2,500/ul or platelet values < 100,000/ul without another explanation.
  • Have liver dysfunction, as evidenced by enzymes (ALT and AST) greater than three times the ULN.
  • Have a coagulopathy condition = (INR > 1.3) not due to a reversible cause.
  • Known, serious radiographic contrast allergy.
  • Known allergies to penicillin or streptomycin.
  • Organ transplant recipient.
  • Clinical history of malignancy within 5 years (i.e., patients with prior malignancy must be disease free for 5 years), except curatively-treated basal cell carcinoma, squamous cell carcinoma, or cervical carcinoma.
  • Non-cardiac condition that limits lifespan to < 1 year.
  • On chronic therapy with immunosuppressant medication.
  • Serum positive for HIV, hepatitis BsAg, or hepatitis C.
  • Female patient who is pregnant, nursing, or of child-bearing potential and not using effective birth control.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01087996

Locations
United States, Florida
University of Miami Miller School of Medicine
Miami, Florida, United States
United States, Maryland
Johns Hopkins University
Baltimore, Maryland, United States
Sponsors and Collaborators
University of Miami
National Heart, Lung, and Blood Institute (NHLBI)
The EMMES Corporation
  More Information

Publications:

Responsible Party: Joshua M Hare, Director, Interdisciplinary Stem Cell Institute, University of Miami
ClinicalTrials.gov Identifier: NCT01087996     History of Changes
Other Study ID Numbers: 693, R01HL110737, R01HL107110, R01HL084275, P20HL101443, R01HL094849
Study First Received: March 15, 2010
Last Updated: March 4, 2013
Health Authority: United States: Food and Drug Administration

Keywords provided by University of Miami:
Chronic Ischemic Left Ventricular

ClinicalTrials.gov processed this record on February 25, 2015