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Availability of study protocols for randomized trials published in high-impact medical journals: A cross-sectional analysis
12 references·13 citing·41 second hop
Availability of study protocols for randomized trials published in high-impact medical journals: A cross-sectional analysis (2019)Availability of study protocols for rando…COMPare: a prospective cohort study correcting and monitoring 58 misreported trials in real time (2019)COMPare: a prospective cohort…Promoting public access to clinical trial protocols: challenges and recommendations (2018)Promoting public access to cl…How to avoid common problems when using ClinicalTrials.gov in research: 10 issues to consider (2018)How to avoid common problems …Update on Trial Registration 11 Years after the ICMJE Policy Was Established (2017)Update on Trial Registration …Association of Trial Registration With Reporting of Primary Outcomes in Protocols and Publications (2017)Association of Trial Registra…Comparison of registered and published outcomes in randomized controlled trials: a systematic review (2015)Comparison of registered and …Evidence for the Selective Reporting of Analyses and Discrepancies in Clinical Trials: A Systematic Review of Cohort Studies of Clinical Trials (2014)Evidence for the Selective Re…Discrepancies between registration and publication of randomised controlled trials: an observational study (2014)Discrepancies between registr…Comparison of protocols and registry entries to published reports for randomised controlled trials (2011)Comparison of protocols and r…Selective reporting in clinical trials: analysis of trial protocols accepted by The Lancet (2008)Selective reporting in clinic…Outcome reporting bias in randomized trials funded by the Canadian Institutes of Health Research (2004)Outcome reporting bias in ran…Empirical Evidence for Selective Reporting of Outcomes in Randomized Trials (2004)Empirical Evidence for Select…How can we make sound replication decisions? 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An Observational Study of Five Psychiatry Journals That Mandate Prospective Clinical Trial Registration (2015)The CONSORT statement: revised recommendations for improving the quality of reports of parallel group randomized trials (2001)The CONSORT statement: revised recommendations for improving the quality of reports of parallel-group randomised trials (2001)The Revised CONSORT Statement for Reporting Randomized Trials: Explanation and Elaboration (2001)Trial sequential analysis may establish when firm evidence is reached in cumulative meta-analysis (2007)Contour-enhanced meta-analysis funnel plots help distinguish publication bias from other causes of asymmetry (2008)CONSORT 2010 Statement: updated guidelines for reporting parallel group randomised trials (2010)Statistical Methods for Examining Heterogeneity and Combining Results from Several Studies in Meta‐Analysis (2001)Meta‐Analysis Of Controlled Clinical Trials (2002)A systematic review identifies a lack of standardization in methods for handling missing variance data (2006)STrengthening the REporting of Genetic Association studies (STREGA) – an extension of the STROBE statement (2009)STrengthening the REporting of Genetic Association Studies (STREGA)—an extension of the STROBE statement (2009)Preferred reporting items for systematic reviews and meta-analyses: the PRISMA statement (2009)Preferred Reporting Items for Systematic Reviews and Meta-Analyses: The PRISMA Statement (2009)Preferred reporting items for systematic reviews and meta-analyses: the PRISMA Statement. (2009)Comparing dream to reality: an assessment of adherence of the first generation of preregistered studies (2021)Comparison of Registered and Published Primary Outcomes in Randomized Controlled Trials (2009)SPIRIT 2025 explanation and elaboration: updated guideline for protocols of randomised trials (2025)SPIRIT 2013 explanation and elaboration: guidance for protocols of clinical trials (2013)Better reporting of interventions: template for intervention description and replication (TIDieR) checklist and guide (2014)Outcome reporting discrepancies between trial entries and published final reports of orthodontic randomized controlled trials (2018)Outcome reporting recommendations for clinical trial protocols and reports: a scoping review (2020)SPIRIT 2025 statement: Updated guideline for protocols of randomised trials (2025)Is This Clinical Trial Fully Registered? — A Statement from the International Committee of Medical Journal Editors (2005)Publication of NIH funded trials registered in ClinicalTrials.gov: cross sectional analysis (2012)Research waste in surgical randomized controlled trials (2019)Reliability of Trial Information Across Registries for Trials With Multiple Registrations (2021)Searching clinical trials registers: guide for systematic reviewers (2022)The impact of outcome reporting bias in randomised controlled trials on a cohort of systematic reviews (2010)CONSORT 2025 explanation and elaboration: updated guideline for reporting randomised trials (2025)
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References

  • 2004Empirical Evidence for Selective Reporting of Outcomes in Randomized Trials1,845 cited
  • 2004Outcome reporting bias in randomized trials funded by the Canadian Institutes of Health Research442 cited
  • 2011Comparison of protocols and registry entries to published reports for randomised controlled trials243 cited
  • 2017Update on Trial Registration 11 Years after the ICMJE Policy Was Established240 cited
  • 2015Comparison of registered and published outcomes in randomized controlled trials: a systematic review237 cited
  • 2019COMPare: a prospective cohort study correcting and monitoring 58 misreported trials in real time232 cited
  • 2018How to avoid common problems when using ClinicalTrials.gov in research: 10 issues to consider189 cited
  • 2014Evidence for the Selective Reporting of Analyses and Discrepancies in Clinical Trials: A Systematic Review of Cohort Studies of Clinical Trials187 cited
  • 2008Selective reporting in clinical trials: analysis of trial protocols accepted by The Lancet120 cited
  • 2018Promoting public access to clinical trial protocols: challenges and recommendations83 cited
  • 2017Association of Trial Registration With Reporting of Primary Outcomes in Protocols and Publications77 cited
  • 2014Discrepancies between registration and publication of randomised controlled trials: an observational study45 cited

Cited by

  • 2021Cluster randomized trials of individual-level interventions were at high risk of bias

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34 cited
  • 2024Publication of Results of Registered Trials With Published Study Protocols, 2011-202222 cited
  • 2020Evidence of unexplained discrepancies between planned and conducted statistical analyses: a review of randomised trials19 cited
  • 2022A meta-research study of randomized controlled trials found infrequent and delayed availability of protocols17 cited
  • 2020Articles provided insufficient information to conduct an appropriate retrospective assessment of the pragmatic/explanatory features of medicine trials with the PRECIS-2 tool17 cited
  • 2024Waste not, want not: call to action for spinal manipulative therapy researchers16 cited
  • 2022Access to unpublished protocols and statistical analysis plans of randomised trials13 cited
  • 2020Public availability and adherence to prespecified statistical analysis approaches was low in published randomized trials13 cited
  • 2025How can we make sound replication decisions?11 cited
  • 2021Public access to protocols of contemporary cancer randomized clinical trials10 cited
  • 2023Peer review before trial conduct could increase research value and reduce waste10 cited
  • 2020In Defense of P Values9 cited
  • 2023Clinical trial registration has become more prevalent in physical therapy but it is still inadequate: A meta-research study7 cited