Aims: In people at risk of heart failure (HF) enrolled in the Heart 'OMics' in AGEing (HOMAGE) trial, spironolactone reduced circulating markers of collagen synthesis, natriuretic peptides, and blood pressure and improved cardiac structure and function. In the present report, we explored factors associated with dyskalaemia.
Methods And Results: The HOMAGE trial was an open-label study comparing spironolactone (up to 50 mg/day) versus standard care in people at risk for HF.
Consensus as to best practices for the selection, reporting, and interpretation of primary and secondary outcomes of randomized controlled trials is lacking. We reviewed the strategies adopted in publications of randomized controlled trials (RCTs) for the analysis, presentation, and interpretation of efficacy outcomes from a survey of all cardiovascular RCTs published in the New England Journal of Medicine, Lancet, and the Journal of the American Medical Association during 2019. We focus on the choice of primary outcomes, the variety of approaches to selecting secondary outcomes, the options sometimes used to control type I error, and the common practice to not correct for multiple testing in reporting secondary outcomes.
View Article and Find Full Text PDFEur Heart J
February 2021
Aims: To investigate the effects of spironolactone on fibrosis and cardiac function in people at increased risk of developing heart failure.
Methods And Results: Randomized, open-label, blinded-endpoint trial comparing spironolactone (50 mg/day) or control for up to 9 months in people with, or at high risk of, coronary disease and raised plasma B-type natriuretic peptides. The primary endpoint was the interaction between baseline serum galectin-3 and changes in serum procollagen type-III N-terminal pro-peptide (PIIINP) in participants assigned to spironolactone or control.
In the past 12 months, many important new clinical trials in cardiology have had their first conference presentation and publication. This paper presents a constructive critical appraisal of 6 key studies. In time order of first presentation, they are CABANA, ATTR-ACT, COAPT, DECLARE, REDUCE-IT, and AUGUSTUS.
View Article and Find Full Text PDFThe late-breaking clinical trials presentations at the American College of Cardiology Scientific Sessions in March 2018 are an important contribution to the field of cardiology. This paper presents a constructive critical appraisal of 7 key studies: ODYSSEY OUTCOMES (Evaluation of Cardiovascular Outcomes After an Acute Coronary Syndrome During Treatment With Alirocumab), VEST (Vest Prevention of Early Sudden Death Trial), SECURE-PCI (Statins Evaluation in Coronary Procedures and Revascularization), TREAT (Ticagrelor in Patients with ST-Elevation Myocardial Infarction treated with Pharmacological Thrombolysis), POISE (PeriOperative ISchemic Evaluation), SMART-DATE (Safety of 6-Month Duration of Dual Antiplatelet Therapy After Percutaneous Coronary Intervention in Patients With Acute Coronary Syndrome), and CVD-REAL 2 (Comparative Effectiveness of Cardiovascular Outcomes in New Users of SGLT-2 Inhibitors). For each study, our aim is to document and interpret the main findings, noting particularly when "positive spin" appears to occur, and to provide a balanced account of each study, paying attention to both constructive new findings and study limitations.
View Article and Find Full Text PDFThis paper tackles several statistical controversies that are commonly faced when reporting a major clinical trial. Topics covered include: multiplicity of data, interpreting secondary endpoints and composite endpoints, the value of covariate adjustment, the traumas of subgroup analysis, assessing individual benefits and risks, alternatives to analysis by intention to treat, interpreting surprise findings (good and bad), and the overall quality of clinical trial reports. All is put in the context of topical cardiology trial examples and is geared to help trialists steer a wise course in their statistical reporting, thereby giving readers a balanced account of trial findings.
View Article and Find Full Text PDFThis paper is a practical guide to the essentials of statistical analysis and reporting of randomized clinical trials (RCTs). It is the first in a series of 4 educational papers on statistical issues for RCTs, which will also include statistical controversies in RCT reporting and interpretation, the fundamentals of design for RCTs, and statistical challenges in the design and monitoring of RCTs. Here, we concentrate on displaying results in tables and figures, estimating treatment effects, expressing uncertainty using confidence intervals, and using p values wisely to assess the strength of evidence for a treatment difference.
View Article and Find Full Text PDFBackground: Patients undergoing thoracic surgery are at risk of postoperative pulmonary complications, which are associated with increased morbidity and mortality. High-flow nasal oxygen therapy delivers humidified, warmed positive airway pressure but has not been tested routinely after thoracic surgery.
Methods: We performed a randomized, controlled, blinded study.