Sarah Knapton
Drug Tamiflu does nothing to halt the spread of influenza and Government
wasted nearly £500 million stockpiling it over swine flu
pandemic, study finds
Photo: ALAMY
The drug Tamiflu, given to tens of thousands of people during the swine flu pandemic, does nothing to halt the spread of influenza and the Government wasted nearly £500 million stockpiling it, a major study has found.
The review, authored by Oxford University, claims that Roche, the drug’s Swiss
manufacturer, gave a “false impression” of its effectiveness and accuses the
company of “sloppy science”.
The study found that Tamiflu, which was given to 240,000 people in the UK at a
rate of 1,000 a week, has been linked to suicides of children in Japan and
suggested that, far from easing flu symptoms, it could actually worsen them.
Roche claimed at the time of the 2009 swine flu outbreak that trials had shown
that it would reduce hospital admissions and complications such as
pneumonia, bronchitis or sinusitis.
Based on the results, the Department of Health bought around 40 million doses
of Tamiflu at a cost of £424 million and prescribed it to around 240,000
people. In 2009, 0.5 per cent of the entire NHS budget was spent on the
drug.
However, researchers from The Cochrane Collaboration, a not-for-profit
organisation which carries out reviews of health data, found that Tamiflu
only cut flu-like symptoms from seven days to 6.3 days and there was no
evidence of a reduction in hospital admissions.
Eight children who took the drug in Japan ended up committing suicide after
suffering psychotic episodes. Other side effects included kidney problems,
nausea, vomiting and headaches.
Many people reported feeling anxious or depressed when taking the drug.
Data from 20 trials of Tamiflu also suggested that it prevented some people
from producing sufficient numbers of their own antibodies to fight
infection.
Dr Carl Henegen, professor of evidence-based medicine at Oxford, said: “This
drug was given to 1,000 people a week over a phone line, but it was no
better for symptom relief than over-the-counter medication — and you’re
talking about potentially serious complications. I wouldn’t prescribe it to
my patients.”
Dr Tom Jefferson, an epidemiologist with The Cochrane Collaboration, added:
“The stuff is toxic. It increased the risk of psychiatric events, headaches
and renal events in one in 150 people. People reported nausea, vomiting and
constriction of the airways. In Japan eight children jumped out of windows
and committed suicide.” The report’s authors said they had struggled to
obtain the original trial data from Roche, which initially claimed it was
confidential.
The Government began stockpiling Tamiflu in 2006 over fears about bird flu
after it was approved by the National Institute of Health and Clinical
Excellence. It is not widely prescribed for regular flu.
Roche said it “fundamentally disagrees” with the latest findings.
Dr Daniel Thurley, the company’s UK medical director, added: “We disagree with
the overall conclusions of this report. Roche stands behind the wealth of
data for Tamiflu and the decisions of public health agencies worldwide,
including the US and European Centres for Disease Control and Prevention and
the World Health Organisation.
“The report’s methodology is often unclear and inappropriate, and their
conclusions could potentially have serious public health implications.
Neuraminidase inhibitors are a vital treatment option for patients with
influenza.”
The Department of Health said that Tamiflu had a “proven record” of safety,
quality and efficacy. But a spokesman said health officials would consider
the latest Cochrane review “closely”.
The review is published on Thursday in the British Medical Journal.
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