BM-Publisher journals uses the WHO definition of a clinical trial to decide what constitutes a clinical trial:
“A clinical trial is any research study that prospectively assigns human participants or groups of humans to one or more health-related interventions to evaluate the effects on health outcomes. Interventions include (but are not restricted to) drugs, cells and other biological products, surgical procedures, radiologic procedures, devices, behavioural treatments, process-of-care changes, preventive care, etc”.
Trials should be registered prospectively and the trial registration number and registration date must be included in the article. Further information can be found at the ICMJE faq on trial registration and the trial registration number and date of registration must be included in the article.