** Shares of drugmaker Capricor Therapeutics CAPR.O surge fourfold to $29.72, its highest in over 8 years
** Co says its experimental cell therapy, deramiocel, slowed the progression of Duchenne muscular dystrophy or DMD in a late-stage trial
** DMD is a condition that causes skeletal and heart muscle weakness that quickly gets worse with time
** Co says deramiocel slowed DMD progression by 54% vs placebo
** Disease causes muscle weakness and heart problems; affects about 15,000 people in U.S. - CAPR
** Co has exclusive deal with Japan's Nippon Shinyaku to sell deramiocel in U.S. and Japan, if approved
** Including session's move, stock up ~175% YTD
(Reporting by Sahil Pandey in Bengaluru)
((Sahil.Pandey@thomsonreuters.com))