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Pharmacogenetic testing in oncology: a Brazilian perspective
1Instituto Nacional de Cancer, Rio de Janeiro, RJ, BR.
Clinics (Sao Paulo, Brazil)
|October 18, 2018
Summary
Pharmacogenetics, crucial for precision medicine, requires analyzing rare mutations and common polymorphisms in genes. This personalized approach enhances drug efficacy and reduces adverse effects, particularly in cancer therapy.
Area of Science:
- Pharmacogenetics and its role in precision medicine.
- Integration of genetic diversity into drug response prediction.
- Advancements in sequencing technologies revealing numerous genetic variants.
Background:
- Pharmacogenetics is a cornerstone of personalized medicine, leveraging human genetic diversity.
- Genetic variants significantly influence drug action, with rare mutations (MAF<1%) being as important as common polymorphisms (MAF>1%).
- Cancer pharmacogenetics, focusing on germline and somatic variants, is critical for optimizing drug therapy.
Purpose of the Study:
- To provide an overview of germline cancer pharmacogenetics.
- To focus on specific drug/gene pairs with established clinical guidelines (e.g., thiopurines/TPMT, fluoropyrimidines/UGT1A1, irinotecan/UGT1A1, tamoxifen/CYP2D6).
- To review principles of pharmacogenetics testing, implementation barriers, and Brazilian study data.
Main Methods:
- Review of general principles in pharmacogenetics-informed prescription and testing.
- Highlighting pharmacogenetics testing aspects for selected drug-gene pairs.
- Presentation of relevant pharmacogenetics data from Brazilian studies.
Main Results:
- Established guidelines exist for key drug/gene pairs, guiding clinical implementation.
- Pharmacogenetics testing reveals significant genetic variations impacting drug response.
- Brazilian studies provide specific data on pharmacogenetics relevant to the selected pairs.
Conclusions:
- Pharmacogenetics testing is essential for realizing precision medicine in drug therapy.
- Personalized drug prescription based on genetic profiles improves treatment efficacy.
- Reduced risk of adverse drug reactions is a key benefit of routine pharmacogenetics implementation.
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