Interleukin-1β inhibition and the prevention of recurrent cardiovascular events: rationale and design of the Canakinumab Anti-inflammatory Thrombosis Outcomes Study (CANTOS).
By P. Ridker, T. Thuren, A. Zalewski, Peter Libby. American Heart Journal, 2011
833 citations recorded by the source corpus.
BACKGROUND Inflammation contributes to all phases of the atherothrombotic process, and patients with elevated inflammatory biomarkers such as high-sensitivity C-reactive protein (hsCRP) have increased vascular risk. Yet, it remains unknown whether direct inhibition of inflammation will reduce cardiovascular event rates. DESIGN The CANTOS will evaluate whether interleukin-1β (IL-1β) inhibition as compared with placebo can reduce rates of recurrent myocardial infarction, stroke, and cardiovascular death among stable patients with coronary artery disease who remain at high vascular risk due to persistent elevations of hsCRP (>2 mg/L) despite contemporary secondary prevention strategies. Canakinumab is a human monoclonal antibody that selectively neutralizes IL-1β, a proinflammatory cytokine that plays multiple roles in the atherothrombotic process and that undergoes activation by the nucleotide-binding leucine-rich repeat-containing pyrin receptor 3 inflammasome, a process promoted by cholesterol crystals. Canakinumab significantly reduces systemic C-reactive protein and other inflammatory biomarker levels, is generally well tolerated, and is currently indicated for the treatment of inherited IL-1β driven inflammatory diseases such as the Muckle-Wells syndrome. In a multinational collaborative effort using an event-driven intention-to-treat protocol, CANTOS will randomly allocate 17,200 stable postmyocardial infarction patients with persistent elevation of hsCRP to either placebo or to canakinumab at doses of 50, 150, or 300 mg every 3 months, administered subcutaneously. All participants will be followed up over an estimated period of up to 4 years for the trial primary end point (nonfatal myocardial infarction, nonfatal stroke, cardiovascular death) as well as for other vascular events, total mortality, adverse events, and specific clinical end points associated with inflammation including new onset diabetes, venous thrombosis, and atrial fibrillation. SUMMARY If positive, CANTOS would confirm the inflammatory hypothesis of atherothrombosis and provide a novel cytokine-based therapy for the secondary prevention of cardiovascular disease and new-onset diabetes.
Subfields: Epidemiology, Molecular Biology, Public Health, Environmental and Occupational Health
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Citations in the corpus
- Pleiotropic Effects of Statins on the Cardiovascular System (2017, background): “Agents that target inflammation alone, such as anti-IL-1β therapy (canakinumab) and methotrexate, are currently being tested in secondary prevention trials as adjunctive therapy to lipid lowering.(185,186) Furthermore, the ROCK inhibitors, fasudil and ripasudil, which are currently approved in Japan”
- Immune Effector Mechanisms Implicated in Atherosclerosis: From Mice to Humans (2013, background): “The interventions currently under evaluation include methotrexate in low weekly doses and amonoclonal antibody that neutralizes the proinflammatory cytokine IL-1b (Everett et al., 2013; Ridker et al., 2011).”
- Macrophage Phenotype and Function in Different Stages of Atherosclerosis (2016, neutral): “Most importantly, advanced lesional macrophages have a defect in clearing these apoptotic cells, which contributes to plaque necrosis and increased inflammation because of release of inflammatory mediators from uncleared, postapoptotic necrotic cells.(115,116) Efferocytosis is mediated by the intera”