When your oncologist recommends a chemotherapy regimen, the decision reflects a complex clinical framework integrating your cancer type, biomarker test results, disease stage, organ function, and treatment goals. Understanding this decision process empowers you to ask informed questions and participate actively in your care plan. Key Takeaways Chemotherapy regimens are matched to cancer type, FOLFOX for colorectal cancer, AC-T for breast cancer[3], carboplatin-paclitaxel for