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A Randomized Controlled, Phase 2 Trial of the Viral Serpin Serp-1 in Patients With Acute Coronary Syndromes Undergoing Percutaneous Coronary Intervention.
Circ Cardiovasc Interv. 2010 Nov 9;
Authors: Tardif JC, L'allier PL, Grégoire J, Ibrahim R, McFadden G, Kostuk W, Knudtson M, Labinaz M, Waksman R, Pepine CJ, Macaulay C, Guertin MC, Lucas A
Background-Vascular inflammation can lead to plaque instability and acute coronary syndromes (ACS). Viruses produce potent immunomodulating proteins that regulate key inflammatory pathways. A myxoma virus-derived serpin Serp-1 reduces inflammatory cell invasion and plaque growth in vascular injury models. Our objective was to evaluate the safety and efficacy of Serp-1 in patients with ACS undergoing percutaneous coronary intervention. METHODS AND RESULTS: <0.05) and in creatine kinase-MB levels at 8, 16, and 24 hours after dose (P<0.05). The composite of death, myocardial infarction, or coronary revascularization occurred in 2 of 12 patients with placebo, 5 of 19 in the low-dose group, and none of 17 patients with the high-dose (P=0.058). Intravascular ultrasound did not detect changes in neointimal hyperplasia among groups. Conclusions-This is the first study of a viral serpin demonstrating its safety in ACS patients. The significant reduction in myocardial damage biomarkers supports further assessment of Serp-1 in ACS patients undergoing stent deployment. Clinical Trial Registration-URL: http://www.clinicaltrials.gov. Unique identifier: NCT00243308.
PMID: 21062996 [PubMed - as supplied by publisher]