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Clinical Trials

Clinical Trials

Clinical trials are prospective experimental studies conducted on humans to determine the safety and efficacy of treatments, drugs, diet methods, and medical devices. Using statistics in clinical trials enables researchers to derive reasonable and accurate conclusions from the collected data, allowing them to make wise decisions in uncertain situations. In medical research, statistical methods are crucial for preventing errors and bias.
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Clinical development focuses on how the drug will interact with the human body and encompasses four key phases of clinical trials, each serving a specific purpose in assessing the safety and effectiveness of new drugs. These phases overlap and build upon one another. Phase I involves a small group of healthy volunteers (typically 20-80 individuals) or, in cases where significant toxicity is expected, patients with the targeted disease, such as cancer or AIDS. The volunteers are tested for...

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Related Experiment Video

Updated: Jun 27, 2026

Place and Response Learning in the Open-field Tower Maze

Place and Response Learning in the Open-field Tower Maze

Published on: October 28, 2015

A response to Al et al. Trials 2023;24:233.

¹Department of Medical Ethics & Health Policy, Perelman School of Medicine at the University of Pennsylvania, Blockley Hall 1427, 423 Guardian Drive, Philadelphia, PA, 19104-4884, USA. merz@pennmedicine.upenn.edu.

|August 13, 2023

Summary

This paper argues that manipulating recruitment methods to boost trial enrollment is ethically acceptable. However, this response contends such practices undermine participant voluntariness and compromise research ethics.

Keywords:

Informed consent Psychological manipulation Refusal Voluntariness

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Area of Science:

Clinical research ethics
Human subjects research methodology
Trial recruitment strategies

Background:

Al and colleagues propose that manipulating recruitment methods for increased trial enrollment can be ethically permissible.
This perspective challenges established ethical guidelines in human subjects research.

Discussion:

The response argues that manipulating recruitment compromises the principle of voluntariness in informed consent.
It critiques the application of marketplace "ethics" to human subjects research, suggesting a potential conflict of interest.

Key Insights:

Ethical acceptability of recruitment manipulation remains a contentious issue.
The core ethical concern lies in preserving participant autonomy and informed consent.
A distinction is drawn between commercial practices and the ethical standards of research.

Outlook:

Further debate is needed on the ethical boundaries of recruitment in clinical trials.
Future research should explore best practices for transparent and ethical participant recruitment.
Re-evaluating the ethical framework for human subjects research in light of evolving recruitment strategies is crucial.