Why is informed consent central to ethical conduct in clinical trials?

• A. It ensures participation is voluntary and based on a well-informed consent process.
• B. It guarantees treatment success.
• C. It is optional if risks are low.
• D. It is primarily a legal shield for researchers.

Answer: (A)

Respect for persons in research is shown by making participation voluntary and grounded in a clear, understandable explanation of what the study involves. Informed consent ensures that people are given enough information about the purpose, procedures, risks, potential benefits, alternatives, confidentiality, and their right to withdraw, and that they truly comprehend this information before agreeing. It treats participants as autonomous decision-makers and protects those who may be vulnerable from coercion or undue influence. Keep in mind that consent is an ongoing process, not a one-time form, and it does not guarantee any treatment success; its primary role is ethical protection, not a guarantee of outcomes or a legal shield.