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The Subarachnoid Hemorrhage International Trialists (SAHIT) Repository: Advancing Clinical Research in Subarachnoid Hemorrhage

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Abstract

Researchers and other stakeholders continue to express concern about the failure of randomized clinical trials (RCT) in subarachnoid hemorrhage (SAH) to show efficacy of new treatments. Pooled data may be particularly useful to generate hypotheses about causes of poor outcomes and reasons for failure of RCT in SAH, and strategies to improve them. Investigators conducting SAH research collaborated to share data with the intent to develop a large repository of pooled individual patient data for exploratory analysis and testing of new hypotheses relevant to improved trial design and analysis in SAH. This repository currently contains information on 11,443 SAH patients from 14 clinical databases, of which 9 are datasets of recent RCTs and 5 are datasets of prospective observational studies and hospital registries. Most patients were managed in the last 15 years. Data validation and quality checks have been conducted and are satisfactory. Data is available on demographic, clinical, neuroimaging, and laboratory results and various outcome measures. We have compiled the largest known dataset of patients with SAH. The SAHIT repository may be an important resource for advancing clinical research in SAH and will benefit from contributions of additional datasets.

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Acknowledgments

Funded by a grant from the Canadian Institutes for Health Research.

Author information

Authors and Affiliations

  1. Division of Neurosurgery, Department of Surgery, St. Michael’s Hospital, Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre of the Li Ka Shing Knowledge Institute of St. Michael’s Hospital, University of Toronto, 30 Bond Street, Toronto, ON, M5B 1W8, Canada

    Blessing N. R. Jaja, Daniel Attalla, R. Loch Macdonald, Tom A. Schweizer, Michael D. Cusimano, Benjamin Lo, Ada Louffat-Olivares & Julian Spears

  2. Department of Neurosurgery, Medical Faculty Heinrich Heine University, Düsseldorf, Germany

    Nima Etminan & Daniel Hanggi

  3. University of Iowa, Iowa City, IA, USA

    David Hasan, Michael Todd & James Torner

  4. University of California San Francisco, San Francisco, CA, USA

    S. Claiborne Johnston

  5. Jefferson University, Philadelphia, PA, USA

    Peter Le Roux

  6. Columbia University, New York, NY, USA

    Stephan Mayer

  7. Oxford University, Oxford, UK

    Andrew Molyneux

  8. Kings College London, London, UK

    Adam Noble

  9. The General Infirmary, Leeds, UK

    Audrey Quinn

  10. Friedrich-Alexander University, Erlangen, Germany

    Thomas Schenk

  11. University of Toronto, University Health Network, Toronto, ON, Canada

    Jeffrey Singh

  12. Medicines and Healthcare Products Regulatory Agency, London, UK

    Ming Tseng

  13. University Medical Center Groningen, Groningen, The Netherlands

    William van den Bergh

  14. University Medical Center Utrecht, Utrecht, The Netherlands

    Mervyn D. I. Vergouwen

  15. Chinese University of Hong Kong, Hong Kong, China

    George K. C. Wong

Authors
  1. Blessing N. R. Jaja
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  2. Daniel Attalla
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  3. R. Loch Macdonald
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  4. Tom A. Schweizer
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  5. Michael D. Cusimano
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  6. Nima Etminan
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  7. Daniel Hanggi
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  8. David Hasan
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  9. S. Claiborne Johnston
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  10. Peter Le Roux
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  11. Benjamin Lo
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  12. Ada Louffat-Olivares
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  13. Stephan Mayer
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  14. Andrew Molyneux
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  15. Adam Noble
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  16. Audrey Quinn
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  17. Thomas Schenk
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  18. Julian Spears
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  19. Jeffrey Singh
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  20. Michael Todd
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  21. James Torner
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  22. Ming Tseng
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  23. William van den Bergh
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  24. Mervyn D. I. Vergouwen
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  25. George K. C. Wong
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Corresponding author

Correspondence to R. Loch Macdonald.

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Jaja, B.N.R., Attalla, D., Macdonald, R.L. et al. The Subarachnoid Hemorrhage International Trialists (SAHIT) Repository: Advancing Clinical Research in Subarachnoid Hemorrhage. Neurocrit Care 21, 551–559 (2014). https://doi.org/10.1007/s12028-014-9990-y

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  • DOI: https://doi.org/10.1007/s12028-014-9990-y

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