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Bisphosphonate use ‘raises cancer risk by 13%’

Bisphosphonate use is associated with an increased risk of cancer, with the effect particularly strong in women rather than men, according to new research on a UK cohort.

Researchers from London found a 13% increased risk for upper gastrointestinal cancer in those who had taken bisphosphonates compared with patients who had not.

The study included 8,636 men and women who had a recorded incident of upper gastrointestinal cancer, matched to 34,544 controls with no record of upper gastrointestinal cancer. Bisphosphonate use was defined as any patient ever prescribed one during the 13-year study period.

Women taking bisphosphonates had a 34% increased risk of cancer, adjusted for smoking status, compared with controls, whereas men experienced a 19% decrease in risk.

When they restricted analysis to look at oesophageal cancer alone, they found a 43% increase in risk for women who had taken bisphosphonates, compared with controls. For men there was a 13% decrease compared with controls.

The researchers concluded: ‘In the presence of an association and with a plausible mechanism to account for possible causation, it would be sensible to exercise caution in prescribing bisphosphonates to patients with pre-existing risk factors for upper gastrointestinal cancer.’

PLOS One 2012, online 24 October

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3480418/

Readers' comments (1)

  • Pulse is getting more and more like the Daily Mail. Headline for this article: Bisphosphonate use ‘raises cancer risk by 13%’ - dated 19 Nov 2012. Headline for article in side bar: Biophosphonates 'not a cancer risk' - dated 8 Oct 2012. Please, people!

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