2019 was a robust year for the US Food and Drug Administration’s (FDA’s) regulatory agenda. The agency continued to implement initiatives and mandates required by the 21st Century Cures Act (Cures Act), and navigated leadership and staffing changes at many levels. Most notably, Commissioner Scott Gottlieb resigned on April 5. Norman Sharpless and Brett Giroir served as acting interim commissioners following Commissioner Gottlieb’s resignation. On December 17, Congress swore in Commissioner Stephen Hahn, a radiation…