Journal
AMERICAN HEART JOURNAL
Volume 161, Issue 3, Pages 581-589Publisher
MOSBY-ELSEVIER
DOI: 10.1016/j.ahj.2010.11.023
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Funding
- Ministry of Scientific Research and Information Technology [PBZ-KBN-099/P05/01]
- Polpharma Foundation for Development of Polish Pharmacy and Medicine [II/126/2003]
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Background VIF-CAD randomized, placebo-controlled, double-blind trial was an attempt to induce therapeutic angiogenesis by percutaneous intramyocardial transfer of bicistronic (vascular endothelial growth factor/fibroblast growth factor [VEGF/FGF]) plasmid (pVIF) in patients with refractory heart ischemia. Myocardial perfusion, clinical symptoms, exercise tolerance, left ventricular function, and safety were assessed. Methods Fifty-two patients with refractory coronary artery disease were randomized to receive VEGF/FGF plasmid (n = 33) or placebo plasmid (n = 19) into myocardial region showing stress-induced perfusion defects. Repeat stress and rest technetium Tc 99m sestamibi single-photon emission computed tomography at 5 months was the primary efficacy measure. Secondary assessment included Canadian Cardiovascular Society class and exercise tolerance at 5 and 12 months. Results Rest-and stress-induced perfusion defects did not differ between groups. Canadian Cardiovascular Society functional class improved after 5 (P = .0210) and 12 months (P = .0607) in the treatment group. The exercise tolerance of treated patients improved: total exercise time increased marginally (P = .0541); maximum workload (P = .0419) and total test distance (P = .0473) increased significantly, compared to placebo. Conclusion Bicistronic VEGF/FGF plasmid therapy did not improve myocardial perfusion measured by single-photon emission computed tomography. However, treated patients experienced improvement with respect to exercise tolerance and clinical symptoms. Intramyocardial VEGF/FGF bicistronic plasmid transfer seemed safe throughout the follow-up period of 1 year. (Am Heart J 2011;161:581-9.)
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