** Shares of Australia's Neurizon Therapeutics NUZ.AX fall as much as 5.9% to A$0.08, their lowest level since November 23, 2023
** Marks steepest intraday pct fall since December 23
** Biotech company says the U.S. Food and Drug Administration denies its request for Fast Track Designation
** Request was for its investigational new treatment for Amyotrophic Lateral Sclerosis, NUZ-001
(Reporting by Anjali Singh in Bengaluru)
((anjali.singh2@thomsonreuters.com;))