** Shares of drug developer Altamira Therapeutics Ltd
CYTO.O plunge 26% to $3.68
** CYTO will post its biggest one-day pct. fall in more than
nine months, if losses hold
** Co says its over-the-counter nasal spray Bentrio did not
meet the main goal in a study testing it for a potential
treatment of COVID-19
** Bentrio did not produce statistically significant
reduction in nasal viral presence and symptoms of COVID in a
trial of 160 patients in Bulgaria and North Macedonia
** Bentrio is an over-the-counter nasal spray for protection
against airborne allergens
** Including session moves, CYTO has fallen ~86% in the past
12 months
(Reporting by Mariam E Sunny)
((Mariam.ESunny@thomsonreuters.com;))