What is the significance of the informed consent process in clinical trials?

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Informed consent is about respecting and protecting participants' autonomy and welfare. It ensures people can make a voluntary, well-informed decision to join a trial by providing clear information about the study’s purpose, procedures, potential risks and benefits, alternatives, confidentiality, and what withdrawal would entail. It also makes clear that participation is voluntary and that individuals can withdraw at any time without penalty, with the consent process continuing throughout the study as new information arises. This approach safeguards participants’ rights and well-being, which is the fundamental ethical purpose of the process.

The other statements miss this focus: informed consent is not about benefits to researchers, it does not replace ethics review, and it cannot guarantee a positive outcome or eliminate risks.