Winnipeg Free Press - PRINT EDITION

Diabetes drug linked to boost in cancer risk

TORONTO -- A new study adds further weight to the argument that people who use the diabetes drug Actos are at higher risk of developing bladder cancer.

A group of Montreal researchers reports people with Type 2 diabetes who take the drug are more than 80 per cent more likely to develop bladder cancer than people who don't. And for those who take it over a prolonged period, the risk is higher still.

People who use the drug for more than two years have double the risk of developing bladder cancer than people who don't take the medication. And the drug -- its generic name is pioglitazone -- is meant to be taken over the long term.

Earlier this year, Health Canada warned there were emerging signals that pioglitazone use might be linked to elevated rates of bladder cancer. The regulator had done a safety assessment on the drug, looking at early data from an ongoing study being conducted by the drug's manufacturer, Takeda Canada Inc.

Based on data collected to the mid-way point of the 10-year study, Health Canada asked Takeda to update the drug's labels to reflect the potential risk.

Dr. David Juurlink, head of the division of clinical pharmacology at the University of Toronto, said the Montreal group's findings suggest the linkage is real.

"I think this is probably the single best study of this issue, and I think (it) leaves little doubt that pioglitazone is a potential risk factor for bladder cancer," said Juurlink, who was not involved in the study.

The work was done by researchers from McGill University and Montreal's Jewish General Hospital. It was published Thursday in the journal BMJ.

The scientists looked at medical records for a group of 115,727 people from Britain who started to take medication for Type 2 diabetes. Among those, 376 people developed bladder cancer and the researchers compared them to nearly 6,700 people who didn't develop the disease. The risk is relative. In other words, the risk pioglitazone users experience relative to people who didn't take the drug.

 

-- The Canadian Press

Republished from the Winnipeg Free Press print edition June 2, 2012 A17

You can comment on most stories on winnipegfreepress.com. You can also agree or disagree with other comments. All you need to do is register and/or login and you can join the conversation and give your feedback.

Have Your Say

New to commenting? Check out our Frequently Asked Questions.

The Winnipeg Free Press does not necessarily endorse any of the views posted. By submitting your comment, you agree to our Terms and Conditions. These terms were revised effective April 16, 2010.

letters

Make text: Larger | Smaller

LATEST VIDEO

Homicide unit investigating Roblin Boulevard incident

View more like this

Photo Store Gallery

  • JOE BRYKSA/WINNIPEG FREE PRESS Local-(Standup photo)- A wood duck swims through the water with fall refections in Kildonan Park Thursday afternoon.
  • Marc Gallant / Winnipeg Free Press. Local- Weather standup. Sundog. Refraction of light through ice crystals which caused both the sun dog and and fog along McPhillips Road early Wednesday morning. 071205.

View More Gallery Photos

Poll

Do you miss the era of drive-in movie theatres?

View Results

View Related Story

Ads by Google