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VP198 Efficient Retrieval Of Trial Protocols: An Empirical Study
- Anthea Sutton, Maria del Carmen Galvan de la Cruz, Andrew Booth, Joanna Leaviss
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- Journal:
- International Journal of Technology Assessment in Health Care / Volume 33 / Issue S1 / 2017
- Published online by Cambridge University Press:
- 12 January 2018, p. 242
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- Article
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INTRODUCTION:
Registration of trial protocols has become increasingly important in recent years. In the context of systematic reviews, published trial protocols facilitate the identification of studies. Data recorded in trials registers requires standardization to assist with ease of identification, and availability of the most current protocol version. Searching sources of trial protocols, for example trials registers, has issues relating to currency, coverage, functionality and indexing. An empirical study was conducted in the context of a funded systematic review, to establish; the proportion of trial protocols retrievable, the most effective retrieval methods, barriers to retrieving protocols, and whether the most easily retrieved protocol copy remains the document of record.
METHODS:In a systematic review of primary care interventions for medically unexplained symptoms, seventy-four trials were identified as potential included studies. To search for the seventy-four trial protocols, multiple sources and methods were utilized to identify the the differential coverage of sources and the relative efficiency of retrieval methods. Retrieval methods included searching trials registers and bibliographic databases, internet searching, checking journal websites and contacting authors.
RESULTS:Results included; (i) number of trial protocols that were referenced in the corresponding study publication(s), (ii) percentage of protocols indexed in each checked source, including MEDLINE and various trials registers, (iii) number of authors that responded to email contact, (iv) number of authors that provided a reference to, or copy of, the protocol. Information on when the trial protocol was published, funding sources, and trial registration, was also recorded.
CONCLUSIONS:Conclusions are made regarding the coverage of different sources of trial protocols. This will enable Information Specialists to prioritize retrieval methods for identifying trial protocols to inform future search methods guidance. The main barriers to retrieving protocols are discussed together with recommendations for future empirical studies.
OP105 Systematically Reconstructing Trial Context-Role For CLUSTER Searches?
- Andrew Booth, Anthea Sutton, Alison Scope, Joanna Leaviss
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- Journal:
- International Journal of Technology Assessment in Health Care / Volume 33 / Issue S1 / 2017
- Published online by Cambridge University Press:
- 12 January 2018, pp. 48-49
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- Article
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INTRODUCTION:
Randomized controlled trials (RCTs) of complex interventions are conducted in a context-specific environment. Principal trial reports, with a focus on main results, are unable to document adequately the context for an intervention, for example, word limits. Important context may be included in “sibling studies” (that is, studies conducted alongside the main trial, for example, process evaluations, and qualitative studies (1). This presentation explores (i) to what extent is it possible to use a systematic and parsimonious method to identify sibling studies and (ii) what is the potential value of yield from these studies?
METHODS:The systematic CLUSTER approach (2) to follow up of index studies (Citations, Lead authors, Unpublished materials, Scholar, Theories, Early examples Related projects) has demonstrated the value of retrieved items in qualitative terms. However, the CLUSTER approach is painstaking and laborious and may be prohibitive within a time-tight Health Technology Assessment (HTA). A streamlined CLUSTER approach, using freely available Publish or Perish Software integrated with Google Scholar and Microsoft Excel, offers an economical way of building up “clusters” of study reports. A case study of a UK National Institute for Health Research (NIHR)-funded HTA on the management of medically unexplained symptoms in primary care, utilizing quantitative and qualitative research studies, is used to examine the practical application of the approach.
RESULTS:Systematic comparison of yield from sifting with yield from the Publish or Perish software reveals (i) major trials for which corresponding qualitative studies were not previously identified, (ii) qualitative studies identified independently from, and potentially unlinked to, associated trials, (iii) associated trial reports (for example, protocols, feasibility studies, etc), economic evaluations and systematic reviews, and (iv) commentaries and correspondence; all with the potential to enhance understanding of trial context.
CONCLUSIONS:The potential of the Publish or Perish-enabled CLUSTER approach to identify trials or qualitative studies, through “joining up” and mapping of clusters, potentially missed from separate quantitative/qualitative sift processes, means that it should be considered for any HTA that seeks to integrate quantitative and qualitative studies.