Centre for Evidence-Based Medicine

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Centre for Evidence-Based Medicine (University of Oxford)
Centre for Evidence-Based Medicine, Universoty of Oxford
Type Public
Established 1995
Parent institution
 University of Oxford
Academic staff
 25
Students 5 Full-time DPhils, 28 part-time DPhils and 75 MSc students
Location
Oxford
,
United Kingdom
Website www.cebm.net

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The Centre for Evidence-Based Medicine (CEBM) based at New Radcliffe House in the University of Oxford is a not-for-profit organisation dedicated to the practice, teaching and dissemination of high quality evidence-based medicine to improve healthcare in everyday clinical practice. CEBM was founded by David Sackett in 1995 and since 2010 has been led by Professor Carl Heneghan, a Clinical Epidemiologist and General Practitioner. The Centre is part of the University's Nuffield Department of Primary Care Health Sciences.[1]

There are currently over 25 active staff and honorary members of the CEBM. Many of the active staff include other clinicians, statisticians, epidemiologists, information specialists, quantitative and qualitative researchers.

Teaching and degrees

CEBM runs a Graduate School in Evidence-Based Healthcare, together with the Department of Continuing Education at the University of Oxford. The Graduate School includes a MSc in Evidence-Based Health Care [2] and a DPhil in Evidence-Based Health Care.[3] along with a range of short courses

Evidence Live conference

Every year, CEBM organises Evidence Live,[4] a multi-day conference focussing on developments in the area of evidence-based medicine. The conference is organised in collaboration with the British Medical Journal. Themes for the conference include Improving the Quality of Research; disentangling the Problems of Too Much and Too Little Medicine; transforming the Communication of Evidence for Better Health; training the Next Generation of Leaders and translating Evidence into Better-Quality Health Services.

Notable projects

Levels of Evidence

CEBM has developed a widely adopted [5] systematic hierarchy of the quality of medical research evidence, named the levels of evidence. Systematic reviews of randomized clinical trials (encompassing homogeneity) are seen as the highest possible level of evidence, as full assessment and aggregated synthesis of underlying evidence is possible.

Tamiflu

In collaboration with the British Medical Journal, Carl Heneghan and team found no evidence that Tamiflu helped to reduce complications of influenza.[6][7] This has become a controversial topic, as the United Kingdom government spend £473 million on the purchase of Tamiflu, despite the systematic review [8] claiming to find no evidence for the effectiveness of it.[9]

Sports Products

A systematic review conducted in 2012 discovered a very little effect of carbohydrate drinks on sport performance of the general population.[10][11] This work formed part of a joint investigation with BBC Panorama and the British Medical Journal.[12] A linked article published in the BMJ reported a “Striking lack of evidence” to back up claims for popular sports brands.[13] A further analysis of a broad range of sports products showed that the evidence for many sports products is poor quality and insufficient to inform the public about the benefits and harms of sports products.[13]

Self Care

Systematic review and individual patient data meta analysis research[14] in the centre has shown that even with little training people on oral anticoagulation (Warfarin) can successfully self-monitor, and even self-manage their disease in the community.[15] Patients capable of self-monitoring and self-adjusting therapy have fewer thromboembolic events and lower mortality than those who self-monitor alone.[16] In 2014, Carl Heneghan along with Alison Ward became directors of a World Health Organization Collaborating Centre for Self-Care in Non-communicable disease.[17]

All Trials

The centre is one of the co-founders of the AllTrials campaign, which has been influential in ensuring that the results of all clinical trials are registered and reported in full.

Diagnostic Technologies and Reasoning

The centre has a strong diagnostic theme which includes assessing novel Diagnostic Technologies relevant to improving the diagnosis of disease in primary care and also to improving diagnostic reasoning. In 2015, the centre produced a report for the Department of Health (United Kingdom) on Antimicrobial resistance diagnostics which highlighted the considerable number of new diagnostic technologies in development to underpin rational prescribing of antibiotics.[18]

COMPare Project

In 2015 the COMPare project was launched: Outcome switching in clinical trials is a serious problem. The project systematically checks every trial published in the top five medical journals, to see if they have misreported their findings, comparing each clinical trial report against its registry entry. The project has found that some trials report their outcomes perfectly, but for many others outcomes specified in the registry entry were never reported. The updates to the trials are updated live on the COMPare website. The project highlights how researchers are duped by the common practice in clinical trial reporting of "outcome switching".[19]

Adverse Events

In March 2016, research in the centre systematically identified 353 medicinal products withdrawn worldwide because of adverse drug reactions, assessed the level of evidence used for making the withdrawal decisions, and found that only 40 drugs were withdrawn worldwide.[20] Withdrawal was significantly less likely in Africa than in other continents (Europe, the Americas, Asia, and Australasia and Oceania). [21] Furthermore, in 47% of the 95 drugs for which death was documented as a reason for withdrawal more than 2 years elapsed between the first report of a death and drug withdrawal. [22]

Research Fellows

2015 Research Fellows listed on the CEBM website include:[23]

Notable Honorary Fellows

Notable fellows include:[24]

References

  1. ↑ http://www.phc.ox.ac.uk/research/oxford-centre-for-evidence-based-medicine[full citation needed]
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
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  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  10. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  12. ↑ http://www.bbc.co.uk/news/health-18863293[full citation needed]
  13. ↑ 13.0 13.1 Lua error in package.lua at line 80: module 'strict' not found.
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  16. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  17. ↑ http://apps.who.int/whocc/Detail.aspx?cc_ref=UNK-256&cc_city=oxford&[full citation needed]
  18. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  19. ↑ http://www.vox.com/2015/12/29/10654056/ben-goldacre-compare-trials
  20. ↑ Worldwide withdrawal of medicinal products because of adverse drug reactions: a systematic review and analysis.Onakpoya IJ, Heneghan CJ, Aronson JK. Crit Rev Toxicol. 2016 Mar 3:1-13
  21. ↑ Post-marketing withdrawal of 462 medicinal products because of adverse drug reactions: a systematic review of the world literature. Onakpoya IJ, Heneghan CJ, Aronson JK. BMC Med. 2016 Feb 4;14:10. doi: 10.1186/s12916-016-0553-2.
  22. ↑ Delays in the post-marketing withdrawal of drugs to which deaths have been attributed: a systematic investigation and analysis. Onakpoya IJ, Heneghan CJ, Aronson JK. BMC Med. 2015 Feb 5;13:26. doi: 10.1186/s12916-014-0262-7.
  23. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  24. ↑ http://www.cebm.net/about/

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