Pharmacogenomics (PGx) in precision medicine is critical for a tailored therapy to identify a group of patients with better efficacy and safety. The table of PGx biomarkers published at an FDA website presented the information for more than 60 biomarkers included in the labeling of oncology drugs. A review on the statistical methods applied for the analysis on these biomarkers will be provided. The statistical study designs supporting the companion diagnostic device (CDx) for the corresponding therapeutic products will be discussed.
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