UPDATE 6/15/2011: An Ongoing Safety Review by FDA shows increased risk of bladder cancer for patients on Actos (pioglitazone)
The five year study showed that an increased risk of bladder cancer was noted among patients with the longest exposure to pioglitazone, and in those exposed to the highest cumulative dose of pioglitazone. An epidemilogical study in France shows and increased risk for bladder cancer as well. The FDA stated that information about this risk will be added to the Warnings and Precautions section of the label for pioglitazone-containing medicines. The patient Medication Guide for these medicines will also be revised to include information on the risk of bladder cancer. Pioglitazone containing medicines include: Actos and when combined with other drugs, Actoplus Met, Actoplus Met XR, and Duetact. For further patient information go to FDA.gov.
Along with this news, Takeda, the maker of the drug has also learned that France is pulling Actos off the market. This, too, is due to concerns over bladder cancer after an epidemiological study there.
Actos Bladder Cancer Symptoms
According to the National Cancer Institute, the symptoms of bladder cancer are very similar to those of a common bladder infection. However, if you have taken Actos, especially for longer than one year, it is important to inform your physician of your concerns. The symptoms of bladder cancer can include:
- blood in the urine (or urine that appears red or rusty), more frequent urination,
- feeling the urge to urinate (but without results),
- needing to bear down in order to urinate, and
- pain during urination.