Ethical considerations in a clinical trial include which of the following?

• A. Just obtaining informed consent
• B. Balancing risks and benefits, protecting participant rights, and obtaining voluntary informed consent
• C. Ethics are not relevant if regulatory approval exists
• D. Financial considerations override participant welfare

Answer: (B)

In clinical research, ethical considerations center on protecting participants while enabling valuable science. The best answer reflects this by including balancing potential risks and benefits, safeguarding participant rights and welfare, and ensuring participation is voluntary and informed. The risk–benefit assessment aims to minimize harm and maximize possible benefit, and protecting rights covers autonomy, privacy, confidentiality, fair participant selection, and the right to withdraw at any time. Informed consent is a process, not a one-time event—participants should understand what they are agreeing to and consent voluntarily.

Regulatory approval is essential, but it does not replace ethical responsibilities—an ethically sound trial must still protect participants regardless of approvals. Financial considerations must never override participant welfare.