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Related Experiment Videos

Planning controlled clinical trials. Prostatic cancer

L Denis1, B J Norlén, L Holmberg

  • 1European Organization for Research and Treatment of Cancer, Algemeen Ziekenhuis Middelheim, Antwerp, Belgium.

Urology
|April 1, 1997
PubMed
Summary

Designing effective prostate cancer (PC) clinical trials requires clear hypotheses, careful patient selection, and appropriate endpoints. Well-organized, controlled trials are crucial for reliable answers on PC treatment efficacy.

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Current opinion in urology·2006

Area of Science:

  • Urology
  • Clinical Trials Methodology
  • Prostate Cancer Research

Background:

  • Past prostate cancer (PC) research has yielded insufficient reliable data on localized PC treatment efficacy.
  • There is a need for improved design and conduct of clinical trials in PC.

Purpose of the Study:

  • To establish principles for designing and conducting clinical trials in prostate cancer (PC).
  • To address special considerations for localized PC trials.

Main Methods:

  • A working group evaluated and reached consensus on key points for PC trial planning and conduction.
  • Discussions covered hypothesis formulation, methodological principles, PC-specific challenges, randomization alternatives, and trial organization.

Main Results:

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  • Hypotheses must be clinically relevant; patient selection, endpoints, and sample size require careful consideration.
  • Survival is the primary endpoint; intention-to-treat analysis is standard. Surrogate endpoints like PSA elevation need validation.
  • Controlled randomized trials are the gold standard; non-randomized trials face significant methodological issues. A strong protocol and good clinical practice are essential.

Conclusions:

  • Well-designed, controlled clinical trials are essential to address critical questions in prostate cancer research.
  • Improving the quality of PC clinical trials is a significant challenge for the urological scientific community.