A new study from Lawson Health Research Institute and Western University illustrates how the gut microbiome interacts with an oral medication in prostate cancer patients, suggesting bacteria in the gut play a role in treatment outcomes. The findings, published in Nature Communications, highlight how the drug abiraterone acetate is metabolized by bacteria in the gut to reduce harmful organisms while promoting those that fight cancer. The team suspects this is one of many examples of how the microbiome influences our response to medications.