FDA Weighs National Priority Vouchers for Merck's Enlicitide and Sacituzumab Tirumotecan, Potentially Compressing Review Timelines
SHERIDAN, WYOMING - December 19, 2025 - The FDA is considering awarding Commissioner's National Priority Vouchers to two investigational Merck programs-PCSK9 pill enlicitide decanoate and antibody-drug conjugate sacituzumab tirumotecan-an early signal that the agency may be willing to accelerate reviews for high-impact products even before formal filings, according to a Reuters report.
A new FDA lever that can reshape launch timing
Commissioner's National Priority Vouchers are designed to shorten the FDA's regulatory review window from the typical 10-12 months to 1-2 months. For large pharma, that time compression can meaningfully shift competitive dynamics-pulling forward commercialization, altering payer and guideline sequencing, and increasing the urgency of manufacturing readiness, launch supply, and field execution.