CONSORT Group

CONSORT Group is an international consortium that develops and promotes standards for reporting randomized controlled trials to improve transparency, reproducibility, and critical appraisal. Founded by clinical epidemiologists, methodologists, journal editors, and biostatisticians, the consortium interacts with medical journals, research funders, guideline developers, and policy makers to harmonize reporting practices across disciplines. Its outputs influence editorial policies at leading journals and inform systematic reviewers, clinicians, and regulatory agencies.

History and development

The initiative emerged from collaborations among investigators associated with institutions such as Cochrane Collaboration, Oxford University, Harvard University, Johns Hopkins University, University of Toronto, and McMaster University during the 1990s, shaped by earlier work like the CONSORT Statement of 1996 and methodological debates at conferences including International Conference on Harmonisation meetings and workshops hosted by World Health Organization partners. Key events included consensus meetings with representatives from journals such as The Lancet, The New England Journal of Medicine, BMJ, JAMA, and Annals of Internal Medicine, and consultations with organizations like the International Committee of Medical Journal Editors, EQUATOR Network, and the National Institutes of Health. Over time the consortium built links with regulatory authorities including the Food and Drug Administration and the European Medicines Agency, while engaging researchers from centers like Karolinska Institute, Imperial College London, Stanford University, Yale University, King's College London, and University of Sydney.

Organizational structure and membership

The group operates through an international steering committee, working groups, and ad hoc panels drawing members from universities, specialty societies, and editorial boards such as American Medical Association, BMJ Group, Elsevier, Wiley-Blackwell, and Springer Nature. Membership includes clinical trialists, biostatisticians, epidemiologists, and journal editors affiliated with entities like Cochrane Heart Group, National Institute for Health and Care Research, Canadian Institutes of Health Research, Australian National Health and Medical Research Council, and academic centers including University College London, Duke University, Columbia University, University of California, San Francisco, and McMaster University Health Forum. The consortium coordinates with methodologic initiatives such as STROBE, PRISMA, SPIRIT, and GRADE to align reporting expectations, and liaises with specialty groups including American College of Cardiology, European Society of Cardiology, American Society of Clinical Oncology, Infectious Diseases Society of America, and World Psychiatric Association.

CONSORT Statement and extensions

The flagship output, the CONSORT Statement, comprises a checklist and flow diagram intended for authors and editors; revisions were published following consensus processes involving contributors from Cochrane Methods Group, Agency for Healthcare Research and Quality, European Respiratory Society, American Thoracic Society, and clinical trial networks such as NIHR Clinical Research Network and ClinicalTrials.gov. Extensions have been developed for specific designs and areas, produced in collaboration with specialty organizations like STARD, TREND, TIDieR, CONSORT-SPI, CONSORT-AI, CONSORT-PRO, and regulators including International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use. The statement draws on methodological literature from journals including BMJ, The Lancet, JAMA, and Trials and has been endorsed by editorial policies of publications such as PLOS Medicine, Annals of Internal Medicine, New England Journal of Medicine, and numerous specialty journals in cardiology, oncology, neurology, and psychiatry.

Implementation and impact on clinical trials

Implementation efforts include guidance for authors, training workshops at meetings like European Society for Clinical Trials, collaborations with funders such as Wellcome Trust, Bill & Melinda Gates Foundation, Howard Hughes Medical Institute, and integration into peer-review processes at journals including Science, Nature Medicine, and Cell. Empirical evaluations published in journals such as Lancet Oncology, JAMA Internal Medicine, BMJ Open, and PLOS One show improvements in reporting completeness, trial reproducibility, and risk-of-bias assessment by reviewers using CONSORT-aligned checklists. Systematic reviews by groups associated with Cochrane and meta-analyses leveraging registries like ClinicalTrials.gov, ISRCTN Registry, and EU Clinical Trials Register have quantified changes in outcome reporting, protocol adherence, and selective reporting across specialties represented by societies such as American Heart Association, European Society for Medical Oncology, Society for Neuroscience, and American Psychiatric Association.

Criticisms and controversies

Critiques have focused on implementation variability, potential burdens on authors and journals, and limits in addressing methodological quality versus reporting quality; commentators affiliated with institutions like University of Oxford, Harvard School of Public Health, Yale School of Medicine, and policy analysts from RAND Corporation and Institute of Medicine have debated these issues. Concerns raised in literature across journals such as BMJ, PLOS Medicine, The Lancet, and specialty publications include underuse in low-resource settings, challenges in enforcement by editorial offices at publishers like Elsevier and Springer Nature, and debates about extensions for complex interventions (noted by contributors from Cochrane Complementary Medicine Field, Society for Clinical Trials, and International Society for Pharmacoeconomics and Outcomes Research). Ongoing responses involve empirical research, collaborations with training programs at Johns Hopkins Bloomberg School of Public Health and London School of Hygiene & Tropical Medicine, and harmonization efforts with initiatives such as EQUATOR Network and ICMJE.

Category:Clinical research