Abstract 12754: Infused CD34 Cell Dose, not Bone Marrow CD34+ Cell Content, Improves Clinical Outcomes and LVEF in Patients With Left Ventricular Dysfunction post STEMI: Results of the PreSERVE-AMI Trial
2015
Background: Prior studies suggest an association between naturally high circulating levels of CD34+ cells (CD34) and better outcomes following ischemic events. Pts in the treatment arm of the PreSERVE-AMI study were infused with all CD34 yielded from their bone marrow harvest, resulting in pts with naturally higher CD34 cell counts being infused with a higher cell dose. To determine whether selection bias may have influenced results, we performed an analysis of the relationship between BM CD34 content and outcomes in PreSERVE-AMI. Methods: PreSERVE-AMI is a Phase 2, randomized, double-blind, placebo-controlled trial of autologous, BM derived CD34 (CLBS10) in pts with LV dysfunction (LVEF ≤48% by MRI) ≥4 days post-STEMI. All pts underwent mini BM harvest and were randomized 1:1 to intracoronary infusion of CD34 (minimum dose 10M±20% cells) or placebo (cell diluent). Primary safety endpoints included AEs, SAEs and MACE (CV mortality, HF hospitalization, reinfarction, revascularization). Secondary endpoints ...
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