Ethical conduct in human-subject research

The manuals converge on the need to work within approved research governance, with ethics committee approval, informed consent, Good Clinical Practice, and the Declaration of Helsinki recurring across the extracts. They also consistently emphasise participant welfare, confidentiality, respect for autonomy, and maintaining clear ethical boundaries while delivering psychotherapy or support in a trial setting. Where they differ is mainly in emphasis and context. Some sources focus more on protocol fidelity and blinding in controlled trials, others on balancing research aims with clinical support, and others on specific safety issues such as adverse event reporting, cardiac risk disclosure, or avoiding coercion during preparation, dosing, integration, or discharge. A few extracts also highlight study-specific constraints, such as optional interviews, sponsor instructions, record retention, or whether psychological support is part of the approved protocol.