Investigational Medicinal Product Dossier [IMPD] « Back to Glossary IndexSave as PDFPrint this pageInvestigational Medicinal Product Dossier Related Articles: Making a medicine. Step 6: Phase I – Proof of mechanismPhase I clinical studies, or proof of mechanism studies, test the safety of a medicine in humans. Usually, these studies are carried out in healthy human volunteers.« Back to Glossary IndexRelated Terms:Term: Investigational Medicinal Product Dossier