What expenses should participants be informed about regarding trial participation?

• A. All expenses related to their trial participation
• B. All expenses paid by sponsor
• C. No expenses are expected
• D. Expenses must be approved by ethics committee

Answer: (D)

The main idea is that the consent process must clearly disclose any trial-related financial implications for participants, and those details should be vetted by the ethics committee. Before a study starts, the ethics committee reviews and approves the information presented to participants, including what costs participants might incur and what costs are covered or reimbursed. This review helps ensure the financial details are accurate, complete, and not designed to unduly influence participation. That makes the statement that expenses must be approved by the ethics committee the best fit.