Guidance: Declaration of Helsinki and Clinical Trial Regulations alignment ↗
The MHRA has published guidance clarifying how the UK's updated clinical trial rules align with the Declaration of Helsinki, an international ethical standard for medical research. Where the two conflict, UK law takes precedence and must be followed.
"This is a pragmatic clarification that removes ambiguity for trial sponsors and ethics committees—you follow UK legislation first, full stop. If you're running multicentre trials or comparing your UK protocol to international standards, get familiar with this guidance now; it'll shape protocol design, informed consent language, and ethics submissions. Your compliance and medical affairs teams should flag any Helsinki principles you've been relying on that now sit below UK statutory requirements, and document that hierarchy clearly in your trial master file."