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Pharmacogenetic biomarkers for the prediction of response to antiangiogenic treatment
Bryan P Schneider1, Fei Shen, Kathy D Miller
1Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA. bpschnei@iupui.edu
Abstract:
Antiangiogenic treatments have shown activity across multiple tumour types and in various settings. Despite having been approved on the basis of efficacy, the therapeutic index varies substantially in different settings for many of these agents. A major limitation is the current inability to personalise treatment a priori according to findings on measurement of a predictive biomarker. The roles of germline single-nucleotide polymorphisms have been investigated as potential biomarkers for antiangiogenic treatments. The rationale is founded on the understanding that the drugs target the vasculature rather than the tumour, which could mean that much of the variability is regulated by the host. Several single-nucleotide polymorphisms have been associated with differential outcomes and toxic effects in clinical trials. In this Review we provide an overview of available data with particular attention paid to the pitfalls and strengths of potential biomarkers. We also highlight continuing work and plans for confirmatory studies.
Insights
Personalizing antiangiogenic treatments using germline single-nucleotide polymorphisms (SNPs) may improve patient outcomes. Research explores SNPs as predictive biomarkers to optimize therapy and reduce toxicity in cancer care.
Area of Science:
- Oncology
- Pharmacogenomics
- Cancer Therapeutics
Background:
- Antiangiogenic treatments are effective against various cancers but have variable therapeutic indices.
- Personalizing antiangiogenic therapy is limited by the lack of reliable predictive biomarkers.
- Germline single-nucleotide polymorphisms (SNPs) are being investigated as potential host-related biomarkers.
Purpose of the Study:
- To review the role of germline SNPs as predictive biomarkers for antiangiogenic treatments.
- To evaluate the strengths and pitfalls of using SNPs in clinical practice.
- To highlight ongoing research and future directions in biomarker development.
Main Methods:
- Review of existing clinical trial data and scientific literature.
- Analysis of associations between germline SNPs and treatment outcomes/toxicity.
- Exploration of the biological rationale for host-related genetic variations.
Main Results:
- Several germline SNPs have shown associations with differential efficacy and toxicity of antiangiogenic drugs.
- The host's genetic makeup (regulated by SNPs) may significantly influence treatment response.
- Variability in therapeutic index is substantial across different patient populations.
Conclusions:
- Germline SNPs hold promise as predictive biomarkers for personalizing antiangiogenic therapy.
- Further confirmatory studies are needed to validate SNP associations and clinical utility.
- Optimizing antiangiogenic treatment through pharmacogenomics can potentially improve patient outcomes and reduce adverse events.
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