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Cardiopoietic Stem Cell in Heart Failure: The C-CURE (Cardiopoietic stem Cell in heart failURE) Multicenter Randomized Trial With Lineage-Specified Biologics

Objectives

This study sought to evaluate the feasibility and safety of autologous bone marrow–derived and cardiogenically oriented mesenchymal stem cell and to probe for signs of efficacy in patients with chronic heart failure.

Background

In pre-clinical heart failure models, cardiopoietic stem cell improves left ventricular function and blunts pathological remodeling.

Methods

The C-CURE (Cardiopoietic stem Cell in heart failURE) trial, a prospective, multicenter, randomized trial, was conducted in patients with heart failure of ischemic origin who received standard of care or standard of care plus lineage-specified stem cells. In the cell arm, bone marrow was harvested and isolated mesenchymal stem cells were exposed to a cardiogenic cocktail. Derived cardiopoietic stem cells, meeting release criteria under Good Manufacturing Practice, were delivered by endomyocardial injections guided by left ventricular electromechanical mapping. Data acquisition and analysis were performed in blinded fashion. The primary endpoint was feasibility/safety at 2-year follow-up. Secondary endpoints included cardiac structure/function and measures of global clinical performance 6 months post- .

Results

Mesenchymal stem cell cocktail–based priming was achieved for each patient with the dose attained in 75% and delivery without complications in 100% of cases. There was no evidence of increased cardiac or systemic toxicity induced by cardiopoietic cell . Left ventricular ejection fraction was improved by cell (from 27.5 ± 1.0% to 34.5 ± 1.1%) versus standard of care alone (from 27.8 ± 2.0% to 28.0 ± 1.8%, p < 0.0001) and was associated with a reduction in left ventricular end-systolic volume (−24.8 ± 3.0 ml vs. −8.8 ± 3.9 ml, p < 0.001). Cell also improved the 6-min walk distance (+62 ± 18 m vs. −15 ± 20 m, p < 0.01) and provided a superior composite clinical score encompassing cardiac parameters in tandem with New York Heart Association functional class, quality of life, physical performance, hospitalization, and event-free survival.

Conclusions

The C-CURE trial implements the paradigm of lineage guidance in cell . Cardiopoietic stem cell was found feasible and safe with signs of benefit in chronic heart failure, meriting definitive clinical evaluation. (C-Cure Clinical Trial; NCT00810238).