NCT00587990

Brief Summary

Heart attacks are a leading cause of death in both men and women in the United States. When a person has a heart attack, blood is unable to reach a certain area of the heart, and if the blood supply is not re-established quickly, that area of the heart can suffer permanent damage. While recovery from a heart attack can be managed through medications and lifestyle changes, these treatments can not reverse the original damage to the heart. Current research is focusing on the development of cell-based therapies using stem cells to repair organs that have been irreversibly damaged by disease. A specific form of stem cells, called adult mesenchymal stem cells (MSCs), has shown promise for heart repair. This study will evaluate the safety and effectiveness of injecting MSCs into the heart to repair and restore heart function in people who have had a heart attack and who are having heart surgery for coronary artery bypass grafting (CABG).

Trial Health

57
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
9

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Nov 2007

Typical duration for phase_1

Geographic Reach
1 country

2 active sites

Status
terminated

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

November 1, 2007

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

January 2, 2008

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 8, 2008

Completed
3.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2011

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2011

Completed
3.8 years until next milestone

Results Posted

Study results publicly available

April 2, 2015

Completed
Last Updated

September 10, 2019

Status Verified

August 1, 2019

Enrollment Period

3.6 years

First QC Date

January 2, 2008

Results QC Date

January 30, 2015

Last Update Submit

August 19, 2019

Conditions

Keywords

Chronic Ischemic Left Ventricular Dysfunction

Outcome Measures

Primary Outcomes (1)

  • Number of Patients With Serious Adverse Events

    Six-month post-CABG surgery serious adverse event (SAE) proportion of patients experiencing a composite of sustained ventricular arrhythmias, (lasting longer than 15 seconds), with hemodynamic compromise, sudden unexpected death at six months, ectopic tissue formation at 12 months by chest/abdomen/pelvis CT exam.

    12 Months

Secondary Outcomes (18)

  • Change in Infarct Scar Size (ISS) Over 18 Month Period

    Baseline, 6 Months, 18 Months

  • Left Ventricular Function (LVF) in Region of MSC Injection

    Assessed at Baseline and 18 Months

  • Regional Left Ventricular Wall Thickening

    Assessed at Baseline and 18 months

  • Left Ventricular End Diastolic Wall Thickness

    Assessed at Baseline and 18 months

  • Change in Left Ventricular End Diastolic and Systolic Volume

    Baseline, 6 Months, 18 Months

  • +13 more secondary outcomes

Study Arms (3)

Lower dose mesenchymal stem cell (MSC) injection

EXPERIMENTAL

Participants will receive lower dose mesenchymal stem cell injections for a total of 2 x 10\^7 cells

Biological: Lower dose mesenchymal stem cell (MSC) injection

Higher dose MSC injection

EXPERIMENTAL

Participants will receive higher dose of mesenchymal stem cell injections for a total of 2 x 10\^8 cells

Biological: Higher dose MSC injection

(3) Placebo

PLACEBO COMPARATOR

Participants will receive placebo injections

Genetic: Placebo

Interventions

Participants will receive between 10 and 20 intramyocardial injections of 2 million MSCs per 0.25-0.5 cubic centimeter (cc) for a total of 2 x 10\^7 cells. The injections will be administered following completion of CABG surgery.

Lower dose mesenchymal stem cell (MSC) injection
PlaceboGENETIC

Participants will receive between 10 and 20 placebo injections that consist of phosphate buffered saline (PBS) and 1% human serum albumin (HSA).

(3) Placebo

Participants will receive between 10 and 20 intramyocardial injections of 20 million MSCs per 0.25-0.5 cc for a total of 2 x 10\^8 cells. The injections will be administered following completion of CABG surgery.

Higher dose MSC injection

Eligibility Criteria

Age21 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of chronic ischemic heart failure caused by a heart attack
  • Scheduled to undergo cardiac surgery for CABG
  • Ejection fraction between 15% and 50%
  • Presence of an akinetic or dyskinetic region by standard imaging

You may not qualify if:

  • Glomerular filtration rate of less than 50 mL/min/1.73m2 at study entry
  • Contraindication to performance of an MRI scan
  • Bone marrow dysfunction, as evidenced by a 20% or more deviation from normal hematocrit, white blood cell count, or platelet values without another explanation
  • A coagulopathy condition not due to a reversible cause (i.e., Coumadin)
  • Known, serious radiographic contrast allergy
  • Known allergies to penicillin or streptomycin
  • Organ transplant recipient
  • Clinical history of malignancy within 5 years of study entry (e.g., 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 less than 1 year
  • On chronic therapy with immunosuppressant medication
  • Serum positive for HIV, hepatitis B, or hepatitis C
  • Female who is pregnant, nursing, or of child-bearing potential and not practicing effective birth control methods

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Miami Miller School of Medicine

Miami, Florida, 33136, United States

Location

Johns Hopkins University School of Medicine

Baltimore, Maryland, 21205, United States

Location

Related Publications (1)

  • Karantalis V, DiFede DL, Gerstenblith G, Pham S, Symes J, Zambrano JP, Fishman J, Pattany P, McNiece I, Conte J, Schulman S, Wu K, Shah A, Breton E, Davis-Sproul J, Schwarz R, Feigenbaum G, Mushtaq M, Suncion VY, Lardo AC, Borrello I, Mendizabal A, Karas TZ, Byrnes J, Lowery M, Heldman AW, Hare JM. Autologous mesenchymal stem cells produce concordant improvements in regional function, tissue perfusion, and fibrotic burden when administered to patients undergoing coronary artery bypass grafting: The Prospective Randomized Study of Mesenchymal Stem Cell Therapy in Patients Undergoing Cardiac Surgery (PROMETHEUS) trial. Circ Res. 2014 Apr 11;114(8):1302-10. doi: 10.1161/CIRCRESAHA.114.303180. Epub 2014 Feb 24.

MeSH Terms

Conditions

Ventricular Dysfunction, Left

Interventions

Injections

Condition Hierarchy (Ancestors)

Ventricular DysfunctionHeart DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Drug Administration RoutesDrug TherapyTherapeutics

Limitations and Caveats

Limitations due to slow enrollment and premature closure.

Results Point of Contact

Title
Adam Mendizabal
Organization
EMMES Corporation

Study Officials

  • Joshua M. Hare, MD

    University of Miami

    PRINCIPAL INVESTIGATOR
  • Gary Gerstenblith, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR
  • John V. Conte, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR
  • Steven P. Schulman, MD

    Johns Hopkins University

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Director, Interdisciplinary Stem Cell Institute

Study Record Dates

First Submitted

January 2, 2008

First Posted

January 8, 2008

Study Start

November 1, 2007

Primary Completion

June 1, 2011

Study Completion

June 1, 2011

Last Updated

September 10, 2019

Results First Posted

April 2, 2015

Record last verified: 2019-08

Data Sharing

IPD Sharing
Will not share

Locations