Dose Optimization in Oncology Drug Development: The Emerging Role of Pharmacogenomics, Pharmacokinetics, and

Apostolos Papachristos1, Jai Patel2, Maria Vasileiou3

  • 1Regeneron Pharmaceuticals, Inc., Tarrytown, NY 10591, USA.

Cancers
|June 28, 2023
PubMed

Insights

Optimizing drug dosage in cancer treatment is crucial, especially for targeted therapies. Pharmacological tools can enhance dose selection and improve clinical outcomes.

Area of Science:

  • Oncology
  • Clinical Pharmacology
  • Drug Development

Background:

  • Traditional dose-finding studies in oncology often rely on the Maximum Tolerated Dose (MTD) approach, originally developed for cytotoxic agents.
  • This MTD approach may not be optimal for newer targeted therapies, leading to post-marketing dose adjustments for some anticancer drugs.
  • The FDA's Project Optimus initiative aims to address these limitations by guiding dose optimization in anticancer drug development.

Purpose of the Study:

  • To highlight the limitations of the MTD approach in modern oncology drug development.
  • To emphasize the critical need for dose optimization, particularly for targeted therapies.
  • To explore the role of pharmacological tools in supporting optimal dose selection.

Main Methods:

  • Review of current practices in oncology clinical trial design and dose selection.
  • Analysis of the characteristics of novel therapeutic modalities compared to cytotoxic agents.
  • Identification of relevant pharmacological tools for dose optimization.

Main Results:

  • The MTD approach, while standard, is often insufficient for optimizing doses of novel anticancer agents.
  • Several targeted therapies have required post-marketing dose modifications, indicating suboptimal initial dose selection.
  • Pharmacological tools offer potential solutions for improving dose optimization.

Conclusions:

  • Dose optimization is essential for maximizing the safety and effectiveness of anticancer drugs, especially targeted therapies.
  • Integrating pharmacogenomics, therapeutic drug monitoring, and pharmacodynamics can significantly aid dose optimization throughout clinical development.
  • These tools can improve the likelihood of positive clinical outcomes in cancer patients.

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