Effect of Intramyocardial Injection of Mesenchymal Precursor Cells on Heart Function in People Receiving an LVAD

The Effect of Intramyocardial Injection of Mesenchymal Precursor Cells on Myocardial Function in LVAD Bridge to Transplant Patients

Left ventricular assist devices (LVADs) are one treatment option for people with congestive heart failure. This study will evaluate the safety of injecting mesenchymal precursor cells (MPCs) into the heart during LVAD implantation surgery and examine if injecting MPCs into the heart is effective at improving heart function.

Study Overview

• Status: Terminated
• Conditions: Heart Failure
• Intervention / Treatment: Drug: Cryoprotective media alone; Biological: Mesenchymal Precursor cells (RevascorTM)

Detailed Description

Congestive heart failure is a major health problem and recent estimates indicate that end-stage heart failure with a 2-year mortality rate of 70-80% affects over 60,000 people in the United States each year. For these patients, treatment options are extremely limited. Less than 3,000 heart transplants are available each year because of the severely limited supply of donor hearts. Implantable LVADs, routinely used to support heart transplantation patients who decompensate awaiting a donor heart, were approved by the Food and Drug Administration (FDA) in 2002 for long-term support when heart transplantation is not an option. Few patients, however, achieve sufficient recovery to warrant LVAD explantation and those who do must still contend with ventricular dysfunction. MPCs are normally present in human bone marrow and have been shown to increase the development of blood vessels and new heart muscle cells. The purpose of this study is to determine the safety of injecting MPCs into the heart during LVAD implantation surgery. In addition, this study will examine whether injecting MPCs into the heart is effective at improving heart function.

This study will enroll people who are on the waiting list to receive a donor heart and who are undergoing LVAD implantation surgery. Before the surgery, participants will be randomly assigned to one of two groups. One group of participants will have MPCs injected into their heart during LVAD surgery and the other group of participants will have a control solution (placebo) injected into their heart during the surgery. A portion of heart muscle removed during the surgery will be analyzed. Participants will be monitored by study researchers and blood samples will be collected 12 hours after the LVAD surgery and at 1, 7, 21, 60, and 90 days after the surgery. After that, a medical history review, physical examination, and blood collection will occur every 60 days until a heart transplant occurs or until 12 months after the LVAD implantation, whichever comes first. Heart function testing, which will include an echocardiogram, neuronal function testing, and a 6-minute walk test, will occur 60 and 90 days after the LVAD implantation, and every 2 months thereafter until a heart transplant occurs or until 12 months after the LVAD implantation, whichever comes first.

• Study Type: Interventional
• Enrollment (Actual): 10
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • California
    • San Diego, California, United States, 92123
      • Sharp Memorial Hospital
  • District of Columbia
    • Washington, District of Columbia, United States, 20010
      • Washington Hospital Center
  • Illinois
    • Oak Lawn, Illinois, United States, 60453
      • Advocate Christ Medical Center
  • Kentucky
    • Louisville, Kentucky, United States, 40202
      • Jewish Hospital
  • Michigan
    • Ann Arbor, Michigan, United States, 48109
      • University of Michigan
  • Minnesota
    • Minneapolis, Minnesota, United States, 55455
      • University of Minnesota
    • Rochester, Minnesota, United States, 55902
      • Mayo Clinic
  • New York
    • Bronx, New York, United States, 10467
      • Montefiore Medical Center
    • New York, New York, United States, 10032
      • Columbia University Medical Center
    • New York, New York, United States, 10029
      • Mount Sinai Medical Center
  • Ohio
    • Columbus, Ohio, United States, 43210
      • Ohio State University Medical Center
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19104
      • Hospital of the University of Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19140
      • Temple University Hospital
  • Utah
    • Salt Lake City, Utah, United States, 84107
      • Intermountain Medical Center
  • Washington
    • Spokane, Washington, United States, 99204
      • Sacred Heart Medical Center
  • Wisconsin
    • Madison, Wisconsin, United States, 53792
      • University of Wisconsin
    • Milwaukee, Wisconsin, United States, 53215
      • St. Luke's Medical Center

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:

• Signed informed consent, release of medical information, and Health Insurance Portability and Accountability Act (HIPAA) documents
• Age 18 years or older
• If the participant or partner is of childbearing potential, he or she must be willing to use adequate contraception (hormonal or barrier method or abstinence) from the time of screening and for a period of at least 16 weeks after LVAD implantation
• Female participants of childbearing potential must have a negative serum pregnancy test at screening
• Admitted to the clinical center at the time of study entry
• Listed with the United Network for Organ Sharing (UNOS) for heart transplantation
• Clinical indication and accepted candidate for implantation of an FDA- approved LVAD as a bridge to transplantation

Exclusion Criteria:

• Cardiothoracic surgery within 30 days of study entry
• Heart attack within 30 days of study entry
• Prior heart transplantation, left ventricular (LV) reduction surgery, or cardiomyoplasty
• Acute reversible cause of heart failure (e.g., myocarditis, profound hypothyroidism)
• Anticipated requirement for biventricular mechanical support
• Stroke within 30 days of study entry
• Received investigational intervention within 30 days of study entry
• Platelet count less than 100,000/uL within 24 hours of study entry
• Active systemic infection within 48 hours of study entry
• Presence of greater than 10% anti-human leukocyte antigen (HLA) antibody titers with known specificity to the MPC donor HLA antigens
• Known hypersensitivity to dimethyl sulfoxide (DMSO), murine, and/or bovine products
• History of cancer prior to screening (excluding basal cell carcinoma)
• Acute or chronic infectious disease, including but not limited to human immunodeficiency virus (HIV)
• Treatment and/or an incompleted follow-up treatment of any investigational therapy within 6 months of study entry
• Active participation in other research therapy for cardiovascular repair/regeneration
• Prior recipient of stem precursor cell therapy for cardiac repair
• Pregnant or breastfeeding at the time of study entry

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Triple

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Sham Comparator: Cryoprotective media alone; Participants will receive intramyocardial injections of cryoprotective media alone (placebo).	Drug: Cryoprotective media alone; Participants will receive intramyocardial injections of cryoprotective media (placebo).; Other Names: placebo
Experimental: Mesenchymal Precursor cells (RevascorTM); Participants will receive intramyocardial injections of low dose (25 million) or higher dose (75 million) MPCs in sequential cohorts.	Biological: Mesenchymal Precursor cells (RevascorTM); Participants will receive intramyocardial injections of low dose (25 million) or higher dose (75 million) MPCs (in sequential cohorts).; Other Names: RevascorTM; Mesenchymal Precursor cells

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Time Frame
Incidence of Infectious Myocarditis	Measured within 90 days of study entry
Incidence of Myocardial Rupture	Measured within 90 days of study entry
Incidence of Neoplasm	Measured within 90 days of study entry
Incidence of Hypersensitivity Reaction	Measured within 90 days of study entry
Incidence of Immune Sensitization	Measured within 90 days of study entry

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Assessment of LVAD Wean	The secondary endpoints assessed during the LVAD wean include echocardiographic assessments, 6 minute walk, ability to tolerate wean from LVAD support, duration of ability to tolerate wean from LVAD support, and neuronal function. Measured at 60 days, 90 days, and every 60 days thereafter following LVAD implantation until heart transplantation or 12 months, whichever comes first	up to 12 months
Incidence of Study Intervention-related Adverse Events	This includes Device Malfunction-Pump Thrombus-Suspected and Internal Pump Component, Inflow, or Outflow Tract Infection	up to 12 months
Incidence of All Serious Adverse Events		up to 12 months
Number of Patients Who Experienced Donor-specific HLA Sensitization	Number of patients who experienced donor-specific HLA sensitization post-randomization in each treatment arm.	up to 12 months
Incidence of Myocardial Neovascularization at Time of Explant		up to 12 months
Incidence of Cardiomyocyte Regeneration at Explant		up to 12 months
Incidence of Cell Engraftment and Fate at Explant		up to 12 months
Incidence of Survival to Cardiac Transplantation		up to 12 months

Collaborators and Investigators

• Sponsor: Icahn School of Medicine at Mount Sinai
• Collaborators: National Heart, Lung, and Blood Institute (NHLBI); Angioblast Systems
• Investigators: Principal Investigator: Deborah Ascheim, MD, ICAHN School of Medicine at Mount Sinai; Principal Investigator: Yoshifumi Naka, MD, Columbia University

Study record dates

Study Major Dates

• Study Start: August 1, 2009
• Primary Completion (Actual): May 1, 2010
• Study Completion (Actual): February 1, 2011

Study Registration Dates

• First Submitted: June 23, 2009
• First Submitted That Met QC Criteria: June 24, 2009
• First Posted (Estimate): June 25, 2009

Study Record Updates

• Last Update Posted (Actual): March 5, 2019
• Last Update Submitted That Met QC Criteria: February 28, 2019
• Last Verified: February 1, 2019

More Information

Terms related to this study

• Keywords: Stem Cells; Congestive Heart Failure; Left Ventricular Assist Device; LVAD; Mesenchymal Precursor Cells
• Additional Relevant MeSH Terms: Heart Diseases; Cardiovascular Diseases; Heart Failure
• Other Study ID Numbers: GCO 08-1093; P50HL077096 (U.S. NIH Grant/Contract)