This document is not a NEPA document. It is an FDA Federal Register notice determining the regulatory review period for GRAFAPEX (treosulfan), a human drug product approved January 21, 2025. FDA calculated a total regulatory review period of 9,906 days (8,281 testing phase, 1,625 approval phase) to support a patent term restoration application by Medac Gesellschaft fur Klinische Spezialpraparate mbH for U.S. Patent No. 7,199,162. No environmental review, alternatives analysis, or impact assessment is present.12