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Original Article
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Volume 348:1104-1111 March 20, 2003 Number 12
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Soluble CD40 Ligand in Acute Coronary Syndromes
Christopher Heeschen, M.D., Stefanie Dimmeler, Ph.D., Christian W. Hamm, M.D., Marcel J. van den Brand, M.D., Eric Boersma, Ph.D., Andreas M. Zeiher, M.D., Maarten L. Simoons, M.D., for the CAPTURE Study Investigators

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ABSTRACT

Background CD40 ligand is expressed on platelets and released from them on activation. We investigated the predictive value of soluble CD40 ligand as a marker for clinical outcome and the therapeutic effect of glycoprotein IIb/IIIa receptor inhibition in patients with acute coronary syndromes.

Methods Serum levels of soluble CD40 ligand were measured in 1088 patients with acute coronary syndromes who had previously been enrolled in a randomized trial comparing abciximab with placebo before coronary angioplasty and in 626 patients with acute chest pain.

Results The levels of soluble CD40 ligand were elevated (above 5.0 µg per liter) in 221 patients with acute coronary syndromes (40.6 percent). Among patients receiving placebo, elevated soluble CD40 ligand levels indicated a significantly increased risk of death or nonfatal myocardial infarction during six months of follow-up (adjusted hazard ratio as compared with patients with low levels of the ligand [<=5.0 µg per liter], 2.71; 95 percent confidence interval, 1.51 to 5.35; P=0.001). The prognostic value of this marker was validated in the patients with chest pain, among whom elevated soluble CD40 ligand levels identified those with acute coronary syndromes who were at high risk for death or nonfatal myocardial infarction (adjusted hazard ratio as compared with those with low levels of the ligand, 6.65; 95 percent confidence interval, 3.18 to 13.89; P<0.001). The increased risk in patients with elevated soluble CD40 ligand levels was significantly reduced by treatment with abciximab (adjusted hazard ratio as compared with those receiving placebo, 0.37; 95 percent confidence interval, 0.20 to 0.68; P=0.001), whereas there was no significant treatment effect of abciximab in patients with low levels of soluble CD40 ligand.

Conclusions In patients with unstable coronary artery disease, elevation of soluble CD40 ligand levels indicated an increased risk of cardiovascular events. Elevation of soluble CD40 ligand identifies a subgroup of patients at high risk who are likely to benefit from antiplatelet treatment with abciximab.


Source Information

From the c7E3 Fab Antiplatelet Therapy in Unstable Refractory Angina (CAPTURE) Study (C.H., S.D., C.W.H., M.J.B., E.B., A.M.Z., M.L.S.); Molecular Cardiology, Department of Internal Medicine IV, University of Frankfurt, Frankfurt, Germany (C.H., S.D., A.M.Z.); the Kerckhoff Heart Center, Bad Nauheim, Germany (C.W.H.); and the Thoraxcentre, Erasmus University, Rotterdam, the Netherlands (M.J.B., E.B., M.L.S.).

Address reprint requests to Dr. Heeschen at the Department of Molecular Cardiology, Internal Medicine IV, University of Frankfurt, Theodor-Stern-Kai 7, 60590 Frankfurt, Germany, or at c.heeschen{at}em.uni-frankfurt.de.

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Related Letters:

Soluble CD40 Ligand in Acute Coronary Syndromes
Kritharides L., Lau G. T., Freedman B., Conde I. D., Kleiman N. S., Heeschen C., Hamm C. W., Zeiher A. M.
Extract | Full Text | PDF  
N Engl J Med 2003; 348:2575-2577, Jun 19, 2003. Correspondence

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