Scientists discover why breast cancer drug works better for some people

A new study has shown that variation in the microbiota of the human gut impacts the pharmacokinetics of tamoxifen and thus the effectiveness of the drug. The finding, published in the journal mBio, suggests that in the future, doctors may use a simple test on a patient’s stool to check for certain bacteria in the gut that might help predict whether tamoxifen will work for them.

This article was originally published on MedicalXpress.com

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