US Code
Part B— Drugs for Rare Diseases or Conditions
§ 360ee–1. FDA rare neurodegenerative disease grant program

(1) to characterize such neurodegenerative diseases and their natural history;
(2) to identify molecular targets for such neurodegenerative diseases; and
(3) to increase efficiency and productivity of clinical development of therapies, including through—(A) the use of master protocols and adaptive and add-on clinical trial designs; and
(B) efforts to establish new or leverage existing clinical trial networks.