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Biomarkers in oncology drug development: rescuers or troublemakers?
Estelle Marrer1, Frank Dieterle
1Novartis Institutes for BioMedical Research, Translational Sciences, Novartis, Klybeckstr. 141, CH-4002 Basel, Switzerland. estelle.marrer@novartis.com
Abstract:
Oncology is considered as the pioneer indication for the clinical application of molecular biomarkers. Newly developed targeted anticancer therapies call for the implementation of molecular biomarker strategies but even novel cytotoxic treatments use biomarkers for the assessment of efficacy and toxicity. Biomarkers may play several roles in the progression of a drug from research to personalised medicine. In particular biomarkers are used to understand the mechanism of action of a drug, monitor the modulation of the intended target, assess efficacy and safety, adapt dosing and schedule, select patients and prognosticate the clinical outcome. Nowadays, the use of biomarkers in oncology is still challenged as only a limited number of oncology drugs on the market have a companion biomarker test to be mandatorily performed before treatment. This is in contradiction with the current major investment the pharmaceutical sector is devoting to biomarker identification and development. What are the measurable milestones and outcomes of these investments? How does biomarker development contribute to reaching the ultimate goal of finding the right molecules for the right targets at the right doses and schedules for the right patients? This review provides a critical overview of recent salient achievements in the identification and development of biomarkers.
Insights
Molecular biomarkers are crucial in oncology for targeted therapies and assessing treatment effectiveness. Despite significant investment, challenges remain in their clinical implementation for personalized medicine.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Oncology pioneered the clinical use of molecular biomarkers.
- Biomarkers are essential for novel targeted anticancer therapies and assessing efficacy/toxicity of cytotoxic treatments.
- Biomarkers guide drug development from research to personalized medicine.
Purpose of the Study:
- To critically review recent achievements in biomarker identification and development in oncology.
- To explore the role of biomarkers in understanding drug mechanisms, monitoring targets, assessing efficacy/safety, and personalizing treatment.
- To address the gap between pharmaceutical investment in biomarker development and their current clinical implementation.
Main Methods:
- Literature review of recent advancements in biomarker identification and development.
- Analysis of biomarker roles in drug development and personalized medicine.
- Critical assessment of current challenges and future directions for biomarker implementation.
Main Results:
- Biomarkers are integral to understanding drug action, target modulation, efficacy, safety, dosing, patient selection, and prognosis.
- Despite substantial pharmaceutical investment, mandatory companion biomarker tests are limited for marketed oncology drugs.
- The review highlights key achievements and ongoing challenges in translating biomarker research into clinical practice.
Conclusions:
- Biomarker development is critical for achieving personalized oncology, ensuring the right treatment for the right patient.
- Overcoming current implementation challenges is necessary to fully leverage biomarker potential in cancer care.
- Continued investment and strategic development are essential for advancing biomarker-guided oncology.
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