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It’s the patients who feel the pain

Pharmaceutical drugs combined with modern medicine has obviously saved millions of lives and relieved a vast amount of suffering. I’m all in favour of drugs used appropriately. But as the what happened with SSRIs and Vioxx – let alone more recently with the diabetes drug Avandia  – shows that when it comes to marketing a drug, it is far too easy eliminate the negative and accentuate the positive.

The consequences – damaging side effects that were hidden from patients – are born by the patients not by the company executives. The analogy with the banking crash is clear – it’s not the bankers who are feeling the pain.

It wasn’t supposed to be like that. The system we have for checking that a new drug is effective and safe by running placebo controlled trials is known as evidence based medicine. It was supposed give doctors the information they need to balance risk and benefit when treating patients.

So what is to be done? Part of the answer takes us back to those boxes of SSRI trial data. The company claimed it owned all that information which was why only the occasional outsider like Healy got to see it but since then, despite the distortion this allows, little has changed.

This month (April 2012) a new scandal is brewing over the original data gathered during the testing of the flu drug Tamiflu (ref to come). There are serious doubts over the effectiveness of the drug but despite promises to make the data available for checking by other researchers – a basic scientific principle – access is still restricted.

Why am I here

Which brings us to the purpose of this blog. The first is to contribute to dispelling the myth that drug use is nearly always evidence based. Despite the courageous campaigning against the regular distortion of drug data by Healy and others such as Marcia Angell, a Senior Lecturer in Social Medicine at Harvard Medical School and former Editor in Chief of The New England Journal of Medicine, the majority of doctors and patients believe that drug treatments are generally evidence based.

Examples of evidence-free medical practise crop up all the time but they are rarely put into any kind of context. In fact they usually form part of a pattern such as the hiding of original data on both SSRIs and Tamiflu. One aim of the blog is make connections between the difference sort of evidence free prescribing

Another current example of a repeating pattern is the practice of prescribing drugs “off label”, that is without a license. It’s widely done but it can be dangerous and there is no control of it. The SSRIs Healy was originally investigating were prescribed to children off label and so are the antipsychotics – heavyweight tranquilisers – widely given to Alzheimer’s patients for the last six or seven years. This week a Canadian study found 11% of their drugs were prescribed off label, the majority only weak scientific justification.

But the point is not just to pile up evidence of bad medicine. The belief that pharmaceutical medicine is all evidence based has a wider effect. It means that there is huge official resistance to any of the life-style option for either preventing or treating disease. There’s lip-service paid to five a day but at the same time fast food companies get to sponsor the Olympics.

If you’ve got evidence-based statins to prevent heart disease and a range of evidence-based drugs to treat diabetes, why bother getting serious about any other appraoch? As a result the reality of the “five a day” advise about prevention becomes five drugs a day more – the amount being taken by half of those over 65.

I want to know what works

The knock on effect of that is that even when non-drug treatments are shown to be effective in a trial there is rarely any follow up. What has happened since a randomised controlled trial showed it was possible to reduce memory diminishing brain shrinkage with high doses of B vitamins  is recent example. Partly it’s because it isn’t profitable but also because there’s a feeling that real medicine is evidence based and that means drugs.

The irony is that the end result of this approach is a guarantee that the older you get the less your treatments will be evidence based. That’s because as you age your risk of various disease rises and each will usually be treated with several drugs. By 70 you could be on ten or more drugs. Taking multiple drugs is known as polypharmacy and no companies run gold standard randomised trials to find out who benefits and what the side-effects are.

As ever the purpose of my blog is personal. I want to find a way out of this bind and to do that I want to find out much more about what lifestyle interventions work and which don’t.

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Comments

  1. Er.. I have looked and not found good evidence for 5-a-day. Tesco believes it though. Reference?

Trackbacks

  1. […] of the cheating cases featured in the extract, for instance, are also to be found in “Food is Better Medicine than Drugs”, the book written by myself and one of Ben’s favourite targets Patrick Holford and published way […]

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