• Int J Stroke · Feb 2012

    Development, expansion, and use of a stroke clinical trials resource for novel exploratory analyses.

    • Myzoon Ali, Philip Bath, Marian Brady, Stephen Davis, Hans-Christoph Diener, Geoffrey Donnan, Marc Fisher, Werner Hacke, Daniel F Hanley, Marie Luby, G Tsivgoulis, Nils Wahlgren, Steven Warach, Kennedy R Lees, and VISTA Steering Committees.
    • Glasgow Caledonian University, Cowcaddens Rd, Glasgow G4 0BA, UK. vista.collaboration@glasgow.ac.uk
    • Int J Stroke. 2012 Feb 1; 7 (2): 133-8.

    IntroductionAnalysis of reliable registry data can direct future research to influence clinical care. Data from the Virtual International Stroke Trials Archive have been used to test hypotheses and inform trial design. We sought to expand Virtual International Stroke Trials Archive into a broader stroke resource with new opportunities for research and international collaboration.MethodsUsing procedures initially developed for an acute stroke trial archive, we invited trialists to lodge data on rehabilitation, secondary prevention, intracerebral haemorrhage, imaging, and observational stroke studies.ResultsWe have extended Virtual International Stroke Trials Archive into six subsections: Virtual International Stroke Trials Archive-Acute (n = 28 190 patients' data), Virtual International Stroke Trials Archive-Rehab (n = 10 194), Virtual International Stroke Trials Archive-intracerebral haemorrhage (n = 1829), Virtual International Stroke Trials Archive-Prevention, Virtual International Stroke Trials Archive-Imaging (n = 1300), and Virtual International Stroke Trials Archive-Plus (n = 6573). Enrollment continues, with commitments for the contribution of six further trials to Virtual International Stroke Trials Archive-Prevention, 13 trials to Virtual International Stroke Trials Archive-Rehab, and one registry to Virtual International Stroke Trials Archive-Plus. Data on age, type of stroke, medical history, outcomes by modified Rankin scale and Barthel Index (BI), mortality, and adverse events are available for analyses. The Virtual International Stroke Trials Archive network encourages the development of young investigators and provides opportunities for international peer review and collaboration.ConclusionsApplication of the original Virtual International Stroke Trials Archive concepts beyond acute stroke trials can extend the value of clinical research at low cost, without threatening commercial or intellectual property interests. This delivers valuable research output to inform the efficiency of future stroke research. We invite stroke researchers to participate actively in Virtual International Stroke Trials Archive and encourage the extension of Virtual International Stroke Trials Archive principles to other disease areas.

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