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Research reveals high Tamoxifen termination rate

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A quarter of women treated for breast cancer stop using tamoxifen within one year, says a new study which shows how early termination can negatively affect the drug's treatment efficacy.

A quarter of women treated for breast cancer stop using tamoxifen within one year, says a new study which shows how early termination can negatively affect the drug's treatment efficacy.

The study shows the rate of women stopping their medication was twice as high as indicated by previous studies.

Researchers found that at 12 months 22% of women had ceased using the drug. At 24 months 28% had stopped tamoxifen, and at 3.5 years 35% had stopped the treatment. Less than five years of continual treatment is associated with higher rates of cancer recurrence.

Cancer (2007) online publication: DOI: 10.1002/cncr.22486

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