Draft Guide on Drug Interaction Assessments
FDA has made available a draft guidance entitled “Drug-Drug Interaction Assessment for Therapeutic Proteins.” The document is intended to help sponsors determine the need for drug-drug interaction (DDI) studies for a therapeutic protein by providing a systematic, risk-based approach.
When evaluating the potential for a DDI, FDA says “sponsors should consider the mechanisms of a potential DDI, taking into account the pharmacology and clearance of the therapeutic protein as well as any co-administered medications in the patient population.” The guidance also provides examples of the types of situations in which an assessment of the DDI potential of a therapeutic protein can be warranted.