Synonym(s)
Observational study
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In a "non-interventional study", in contrast to an interventional study, there are no interventions, but only documentation of treatments that are carried out without any changes by the study.
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Non-interventional studies can be designed as cohort studies, case-control studies or cross-sectional studies. Non-interventional studies have a high external validity ("real life") and provide information about the actual results of therapies. Non-interventional studies can be prospective or retrospective.
Prof. Dr. med. Peter Altmeyer