Phase I trials of targeted anticancer drugs: a need to refocus

Ernest C Borden1, Afshin Dowlati

  • 1Case Comprehensive Cancer Center, Taussig Cancer Institute R40, Cleveland Clinic, 9500 Euclid Avenue, Cleveland, Ohio 44195, USA. bordene@ccf.org

Insights

Phase I cancer trials need to focus on new endpoints. This will improve the design, dosing, and patient selection for Phase II studies of molecularly targeted drugs.

Area of Science:

  • Oncology
  • Clinical Pharmacology
  • Drug Development

Background:

  • Molecularly targeted drugs represent a significant advancement in cancer therapy.
  • Current Phase I trial designs may not be optimal for these novel agents.

Purpose of the Study:

  • To advocate for a shift in focus for Phase I cancer trials.
  • To identify key endpoints that can inform subsequent trial phases.

Main Methods:

  • Review of current Phase I trial methodologies.
  • Analysis of endpoint utility in guiding Phase II study design.

Main Results:

  • Existing endpoints in Phase I trials may not adequately capture the nuances of targeted therapies.
  • Specific endpoints are needed to optimize dose selection and patient population for Phase II studies.

Conclusions:

  • Phase I trials should prioritize endpoints that facilitate effective Phase II study design.
  • Adapting Phase I trial endpoints is crucial for advancing molecularly targeted cancer therapy.

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