Why must clinical trial participants give informed consent?

Informed consent is a fundamental ethical and legal requirement in clinical trials, designed to protect the rights and well-being of human participants. It ensures that individuals are not merely subjects of experimentation but are fully aware of what their participation entails before they agree to take part.123

The process of informed consent is rooted in the principle of self-determination, which holds that competent individuals have the right to make their own decisions regarding medical interventions. By providing a written description of the study’s aims, the requirements of participation, potential side effects, and the participant's rights, researchers ensure that volunteers can make an educated choice.41

This practice is essential for several reasons:
* Protection: It ensures that participants are informed of the risks involved, allowing them to weigh these against the potential benefits.12
* Autonomy: It upholds the ethical standard that participants must freely provide their consent without coercion, a principle established by the Nuremberg Code and the Declaration of Helsinki.12
* Transparency: It provides participants with the opportunity to ask questions and ensures they understand they may withdraw from the study at any time.12