What the peer reviewed evidence shows
There is rigorous research showing a pattern. A Cochrane review by Lundh, Sismondo, Lexchin, Busuioc and Bero in 2017 concluded that industry sponsored studies are more likely to report results favourable to the sponsor than independently funded studies. The review examined numerous trials and systematic reviews and is published in the Cochrane Database of Systematic Reviews. That does not prove fraud in every case. It does show a systematic association between commercial funding and favourable outcomes.
Payments, trials and publication practices
Investigations such as ProPublica's Dollars for Docs database document payments from drug companies to doctors for consulting, speaking and travel. Reporting by journalists and academic researchers shows that pharmaceutical companies fund a large share of clinical trials. Campaigns such as AllTrials, championed by Dr Ben Goldacre, have called for full registration and reporting of trial results to reduce selective publication. These are documented facts from public datasets and investigative projects.
Expert analysis and interpretation
Experts we quote include Professor Lisa Bero and Dr Adriane Fugh-Berman who have published widely on industry influence and marketing practices. Professor Bero is coauthor on the Cochrane review and her work at the University of Sydney looks at how conflicts of interest can bias evidence synthesis. Dr Fugh-Berman at Georgetown University has documented marketing techniques that shape prescribing. We rely on their peer reviewed papers and public statements when offering interpretation about mechanisms such as selective outcome reporting, ghostwriting, and the shaping of clinical guidelines.
Where evidence ends and informed speculation begins
Beyond documented payments and associations we enter a zone of reasoned speculation. For example we can point to business incentives that might encourage companies to lobby for regulatory frameworks that favour patented medicines over generic competition. We can hypothesise how long term relationships between industry and clinician leaders might shape guideline language. We clearly mark these points as conjecture and encourage readers to treat them as lines of inquiry rather than established facts.
What this means for the interested citizen
We think transparency matters. Public registries of payments, full access to trial protocols and independent funding for comparative research reduce the scope for undue influence. We do not offer medical advice. We do encourage scrutiny of conflicts of interest declared in journal articles and guideline panels. Our approach is evidence first. Where evidence lacks we flag expert opinion and speculation clearly.
We will continue to follow new studies and investigative reporting that shed light on corporate influence in health policy and research. Sign up to our newsletter for daily briefs.
References and sources
- Lundh A, Sismondo S, Lexchin J, Busuioc OA, Bero L. Industry sponsorship and research outcome. Cochrane Database Syst Rev 2017
- ProPublica Dollars for Docs database
- AllTrials campaign and resources, led by Ben Goldacre and others
- Examples of investigative reporting in The BMJ on conflicts of interest
- OpenSecrets data on lobbying and industry spending
- Ben Goldacre. Bad Pharma. 2012
- Georgetown University research by Dr Adriane Fugh-Berman on drug marketing