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Clinical Trial
. 2011 Mar 15;107(6):906-11.
doi: 10.1016/j.amjcard.2010.11.005. Epub 2011 Jan 19.

Effect of CC chemokine receptor 2 CCR2 blockade on serum C-reactive protein in individuals at atherosclerotic risk and with a single nucleotide polymorphism of the monocyte chemoattractant protein-1 promoter region

Jim Gilbert  1 , Julie Lekstrom-Himes, Debra Donaldson, Yih Lee, Mingxiu Hu, Jing Xu, Tim Wyant, Michael Davidson; MLN1202 Study Group
Collaborators, Affiliations
Clinical Trial

Effect of CC chemokine receptor 2 CCR2 blockade on serum C-reactive protein in individuals at atherosclerotic risk and with a single nucleotide polymorphism of the monocyte chemoattractant protein-1 promoter region

Jim Gilbert et al. Am J Cardiol. .

Abstract

CC chemokine receptor 2 (CCR2), expressed on the surface of circulating monocytes, and its ligand monocyte chemoattractant protein-1 (MCP-1; also known as CC-chemokine ligand 2) are present in atherosclerotic plaques and may have important roles in endothelial monocyte recruitment and activation. MLN1202 is a highly specific humanized monoclonal antibody that interacts with CCR2 and inhibits MCP-1 binding. The aim of this randomized, double-blind, placebo-controlled study was to measure reductions in circulating levels of high-sensitivity C-reactive protein, an established biomarker of inflammation associated with coronary artery disease, on MLN1202 treatment in patients at risk for atherosclerotic cardiovascular disease (≥2 risk factors for atherosclerotic cardiovascular disease and circulating high-sensitivity C-reactive protein >3 mg/L). Additionally, patients were genotyped for the 2518 A→G polymorphism in the promoter of the MCP-1 gene to investigate the correlation between this polymorphism and reduced C-reactive protein levels with MLN1202 treatment. Patients who received MLN1202 exhibited significant decreases in high-sensitivity C-reactive protein levels, beginning at 4 weeks and continuing through 12 weeks after dosing. Patients with A/G or G/G genotypes in the MCP-1 promoter had significantly greater reductions in high-sensitivity C-reactive protein levels than patients with the wild-type A/A genotype. In conclusion, MLN1202 treatment was well tolerated in this patient population and resulted in significant reductions in high-sensitivity C-reactive protein levels.

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