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Modern Clinical Trials: Seamless Designs and Master Protocols

Abigail Burdon1, Thomas Jaki1,2, Xijin Chen1

  • 1MRC Biostatistics Unit, University of Cambridge, Cambridge, UK.

Cancer Medicine
|April 24, 2026
PubMed
Abstract

Insights

Seamless clinical trials and master protocols accelerate cancer drug development. These innovative approaches streamline testing, helping patients access life-saving treatments faster by improving efficiency in Phase II/III trials.

Area of Science:

  • Oncology
  • Clinical Trial Design
  • Drug Development

Background:

  • Drug development is lengthy and costly, especially for cancer Phase II/III trials, leading to high failure rates.
  • Challenges in cancer drug development necessitate streamlined approaches.
  • Seamless clinical trials and master protocols offer solutions to improve efficiency.

Purpose of the Study:

  • To explore the advantages of seamless clinical trials and master protocols.
  • To highlight principles contributing to the success of these innovative trial designs.
  • To acknowledge regulatory considerations and challenges associated with these methods.

Main Methods:

  • Seamless clinical trials allow for fluid transitions between trial phases, accelerating promising therapy development.
  • Master protocols provide a structured framework for investigating multiple treatments and patient subgroups within a single trial.
  • Real-world trial examples are used to illustrate the application and benefits of these methodologies.

Main Results:

  • Discussion of advantages through real trial examples.
  • Identification of key principles for successful implementation.
  • Acknowledgement of regulatory aspects and potential hurdles.

Conclusions:

  • Seamless designs and master protocols can significantly enhance confirmatory clinical trials.
  • These innovative approaches hold the potential to expedite patient access to life-saving cancer treatments.
  • Improved efficiency in cancer drug development is a key outcome.
Keywords:
adaptive designsefficient trialsinterim analysismaster protocolsseamless phase II/III

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