“What is the usual timeline for obtaining ethical approval, and what factors influence the duration, such as the complexity of the study, review frequency of the ethics committee, and the need for revisions or resubmissions?”

“What are the possible reasons for the rejection of an ethical approval application, and what steps can researchers take to address the concerns raised? Can the application be revised and resubmitted, and if so, what is the typical process for ...

“Who is responsible for reviewing ethical approval applications—an institutional review board (IRB), ethics committee, or regulatory body—and what criteria do they assess?”