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Conflict of interest: forward not backward

BMJ 2015; 350 doi: https://doi.org/10.1136/bmj.h3176 (Published 11 June 2015) Cite this as: BMJ 2015;350:h3176

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Re: Conflict of interest: forward not backward

Re: Conflict of interest: forward not backward

Lenzer and Brownlee1 make a strong argument for financial conflicts of interest trumping personal ones and give (and have given) disturbing examples of lack of transparency in the makeup of advisory panels and guideline committees; it may well be that for these circumstances financial conflict predominates.

Most of such bias follows what I might call conflicts of commission – advice, guidelines, opinions. But there is also an important area, of conflict of omission. For example, by not supporting comparative trials, the soon-to-be-out-of-patent vs the new, drug manufacturers deny prescribers an informed (and for pharma a potentially financially embarassing) choice.

In the early 1980s, my largest single drugs budget expenditure was acyclovir (Burroughs-Wellcome 1981), some £80 for a five day course to treat genital herpes; and even more for the vital and successful suppressive therapy. As the impending patent expiry neared we were exhorted to change to valaciclovir (GSK 1995), equally expensive but “better“. Generic acyclovir arrived, retailing at some £5 for five days. What I (we) needed was a comparison between the new and the old but, without external funding, such a trial was impossible. For simple financial survival (and with no measured or measurable ill-effects) we continued to use generic versions of the old drug.

Likewise, having used Beecham’s ampicillin (1963), with probenecid, for the treatment of gonorrhoea for many years (and getting away with a dose of 1G compared with the CDC‘ recommended 3G), we turned, at the expiry of its patent, to the use of generic ampicillin, rather than Beecham’s new expensive amoxycillinin (1972), with excellent results but with only historical data for comparison.

Lenzer and Brownlee1 suggest that: “ … more important is the biasing effect of financial conflict of interest on clinical research and the effect it has on the way clinicians and patients alike think about disease and treatment” . However. during my years as a physician, I was regularly reminded of COI without financial motivation or commercial pressure that had just such the effects that they emphasize; I therefore have sympathy with Dr Godlee’s view that “non-financial conflicts such as academic passion and personal personal belief...“ have an equal importance.

What about political conflict of interest? In the late 1980s clinicians and patients were both shepherded towards belief in a burgeoning heterosexual HIV/AIDS ‘epidemic‘. Communicable Disease Reports giving tables for AIDS and HIV numbers, covering the end of 1986, provide ample evidence. The AIDS table for September2, as in previous months, includes a footnote that, of 12 cases acquired abroad, “10 were associated with sub-Saharan Africa“. By October3 the footnote had gone, and the December AIDS table4 categories simply offered “presumed infected abroad“. The December HIV table4 was reduced to the one category ‘heterosexual‘. No mention of abroad or Africa.

Whoever was responsible for this re-labelling (the CDSC, its parent the PHLS, the Department of Health, or the Government), the stage was set in January 1987 for the launch of the ‘Don’t die of Ignorance‘ campaign, with John Hurt’s voice intoning over the fallen AIDS monolith. Newspaper editors and journalists did not have to look far for official evidence of an increasing HIV/AIDS epidemic.

This change in wording of the heterosexual categories in the 1980s allowed speculation not only that there was increasing transmission within the UK but that an unknown number, even a majority, of the 'known exposure abroad' category were UK nationals who had travelled and become infected before returning home. This was the interpretation put on the figures by the CDSC themselves when they suggested advice to travellers on risks of HIV when abroad5. The CDR did not publish correspondence, critical or otherwise. A fuller version of this saga is available6.

This misinterpretation, accepted from the late 1980s to the mid-1990s, did have a significant “… effect on the way clinicians and patients alike think about disease1”. Clinics were overwhelmed by worried well patients while there was no extra provision of help, or targeting, for an identifiable section of the population who needed care.

Finally, whether the ‘direction‘ of the COI is largely uni- or multi-directional, pro or anti, may well differ between personal and financial conflicts but should not side-track us into a beauty contest between the two. Guidelines and reviews are clearly more open to suspicion of financial conflict but experts and authorities with hobby-horses, idées fixes or Departmental reputations susceptible to bruising, may have equally deleterious effects on patients and doctors.

References

1. Lenzer J and Brownlee S 2015 http://www.bmj.com/content/350/bmj.h3176/rapid-responses
2. CDSC. Acquired Immune Deficiency Syndrome: United Kingdom: October 1986. CDR 86/44, p4
3. CDSC. Acquired Immune Deficiency Syndrome: United Kingdom: November 1986. CDR 86/48, p4
4. CDSC. Acquired Immune Deficiency Syndrome: United Kingdom: January 1987. CDR 86/53, p3-4
5. Noone A, Gill ON, Clarke SE, Porter K. Travel, heterosexual intercourse and HIV-1 infection. CDR 1991; 1:R39-43
6. Barlow D. (2004) HIV/AIDS in ethnic minorities in the United Kingdom, In Ethnicity and HIV: prevention and care in Europe and the USA, IMP London; Eds, Erwin, Smith and Peters. 21-46

David Barlow July 1 2015

Competing interests: No competing interests

01 July 2015
David Barlow
Emeritus Consultant Physician
Guy's and St Thomas' Foundation Trust
London