Phase II clinical trials in oncology: are we hitting the target?

Mei-Kim Ang1, Say-Beng Tan, Wan-Teck Lim

  • 1National Cancer Centre Singapore, 11 Hospital Drive, Singapore. ang.mei.kim@nccs.com.sg

Insights

Novel cancer therapies require advanced Phase II trial designs. This review explores innovative approaches, including biomarkers and Bayesian methods, to assess cytostatic agents effectively and optimize patient treatment strategies.

Area of Science:

  • Oncology
  • Clinical Trial Design
  • Pharmacology

Background:

  • Increasing development of novel molecularly targeted agents.
  • Challenges in assessing cytostatic agents with traditional Phase II trial designs.
  • Need for optimized dosing and predictive markers for new therapies.

Purpose of the Study:

  • Review available options for Phase II trial designs.
  • Discuss endpoints, study structures, and statistical approaches.
  • Provide guidance for selecting appropriate Phase II designs for novel agents.

Main Methods:

  • Literature review of Phase II trial designs.
  • Analysis of different endpoints and study structures (single-arm, multiarm, randomized).
  • Evaluation of biomarker utilization and Bayesian statistical methods.

Main Results:

  • Traditional designs are insufficient for cytostatic agents.
  • Biomarkers and Bayesian approaches offer improved evaluation methods.
  • No single design fits all studies; selection is context-dependent.

Conclusions:

  • Phase II trial designs must adapt to novel therapeutic strategies.
  • Careful consideration of endpoints, design, and statistical methods is crucial.
  • Tailored Phase II designs are essential for evaluating new molecularly targeted agents.

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