Varespladib and cardiovascular events in patients with an acute coronary syndrome: the VISTA-16 randomized clinical trial.
Abstract | IMPORTANCE: OBJECTIVE: To determine the effects of sPLA2 inhibition with varespladib on cardiovascular outcomes. DESIGN, SETTING, AND PARTICIPANTS: A double-blind, randomized, multicenter trial at 362 academic and community hospitals in Europe, Australia, New Zealand, India, and North America of 5145 patients randomized within 96 hours of presentation of an acute coronary syndrome (ACS) to either varespladib (n = 2572) or placebo (n = 2573) with enrollment between June 1, 2010, and March 7, 2012 (study termination on March 9, 2012). INTERVENTIONS: MAIN OUTCOMES AND MEASURES: The primary efficacy measure was a composite of cardiovascular mortality, nonfatal myocardial infarction (MI), nonfatal stroke, or unstable angina with evidence of ischemia requiring hospitalization at 16 weeks. Six-month survival status was also evaluated. RESULTS: At a prespecified interim analysis, including 212 primary end point events, the independent data and safety monitoring board recommended termination of the trial for futility and possible harm. The primary end point occurred in 136 patients (6.1%) treated with varespladib compared with 109 patients (5.1%) treated with placebo (hazard ratio [HR], 1.25; 95% CI, 0.97-1.61; log-rank P = .08). Varespladib was associated with a greater risk of MI (78 [3.4%] vs 47 [2.2%]; HR, 1.66; 95% CI, 1.16-2.39; log-rank P = .005). The composite secondary end point of cardiovascular mortality, MI, and stroke was observed in 107 patients (4.6%) in the varespladib group and 79 patients (3.8%) in the placebo group (HR, 1.36; 95% CI, 1.02-1.82; P = .04). CONCLUSIONS AND RELEVANCE: In patients with recent ACS, varespladib did not reduce the risk of recurrent cardiovascular events and significantly increased the risk of MI. The sPLA2 inhibition with varespladib may be harmful and is not a useful strategy to reduce adverse cardiovascular outcomes after ACS. TRIAL REGISTRATION: clinicaltrials.gov Identifier: NCT01130246.
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Authors | Stephen J Nicholls, John J P Kastelein, Gregory G Schwartz, Dianna Bash, Robert S Rosenson, Matthew A Cavender, Danielle M Brennan, Wolfgang Koenig, J Wouter Jukema, Vijay Nambi, R Scott Wright, Venu Menon, A Michael Lincoff, Steven E Nissen, VISTA-16 Investigators |
Journal | JAMA
(JAMA)
Vol. 311
Issue 3
Pg. 252-62
(Jan 15 2014)
ISSN: 1538-3598 [Electronic] United States |
PMID | 24247616
(Publication Type: Journal Article, Multicenter Study, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
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Chemical References |
- Acetates
- Heptanoic Acids
- Indoles
- Keto Acids
- Pyrroles
- varespladib
- Atorvastatin
- Phospholipases A
- Phospholipases A2, Secretory
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Topics |
- Acetates
(adverse effects, therapeutic use)
- Acute Coronary Syndrome
(complications, drug therapy)
- Aged
- Angina, Unstable
- Atherosclerosis
- Atorvastatin
- Double-Blind Method
- Early Termination of Clinical Trials
- Female
- Heptanoic Acids
(therapeutic use)
- Humans
- Indoles
(adverse effects, therapeutic use)
- Keto Acids
- Male
- Middle Aged
- Myocardial Infarction
- Phospholipases A
(antagonists & inhibitors)
- Phospholipases A2, Secretory
(drug effects, physiology)
- Pyrroles
(therapeutic use)
- Risk
- Stroke
- Survival Analysis
- Treatment Outcome
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