alexa Impact of Selection Criteria on Outcomes of Antithrombotic Trials in Acute Coronary Syndromes | OMICS International | Abstract
ISSN: 2167-0870

Journal of Clinical Trials
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Review Article

Impact of Selection Criteria on Outcomes of Antithrombotic Trials in Acute Coronary Syndromes

Mariusz Kruk*, Cezary Kępka, Jerzy Pręgowski, Marcin Demkow, Adam Witkowski and Witold Rużyllo
Institute of Cardiology, Warszawa, Poland
Corresponding Author : Mariusz Kruk
MD PhD FESC, Institute of Cardiology, ul
Alpejska 42, 04-628 Warszawa, Poland
Tel: 48223434342
Fax: 223434516
E-mail: [email protected]
Received February 03, 2015; Accepted April 17, 2015; Published April 21, 2015
Citation: Kruk M, Kępka C, Pręgowski J, Demkow M, Witkowski A, et al. (2015) Impact of Selection Criteria on Outcomes of Antithrombotic Trials in Acute Coronary Syndromes. J Clin Trials 5:220. doi:10.4172/2167-0870.1000220
Copyright: © 2015 Kruk M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Selecting patients of appropriate risk is a seminal element of any clinical trial methodology. However, inappropriate risk markers may result in selecting patients with unintended risk levels. We aimed to review systematically the outcomes of randomized clinical trials of antithrombotics in acute coronary syndromes (ACS) in relation to the inclusion risk markers, dividing them into groups reflecting increased hemodynamic (for example Killip>1, ejection fraction<40%) or bleeding risks (for example renal failure, elderly age). According to our analysis, the trials including increased bleeding risk selection criteria were significantly related to the trial outcome of increased bleeding.

Conclusions: Results of antithrombotic trials in ACS may be related to the kind of patients’ selection criteria rather than the drug efficacy/safety. We also provide a conceptual basis for avoiding the pitfalls, which will help future researchers to design and carry out robust studies. Implications for clinical practice, sponsors and regulators are highlighted.

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