Please call back later <a href="http://al-saudia.pk/index.php/sns-focus-xt-side-effects-jxz1">sns focus xt caffeine free</a> An experimental drug for Duchenne muscular dystrophy fromGlaxoSmithKline and Prosensa failed to meet its goal in alate-stage clinical trial, the companies said on Friday. Thedrug, drisapersen, did not show a statistically significantimprovement in the distance that patients could walk in sixminutes compared to a placebo in the Phase three test.