Clazosentan, an endothelin receptor antagonist, in patients with aneurysmal subarachnoid haemorrhage undergoing surgical clipping: a randomised, double-blind, placebo-controlled phase 3 trial (CONSCIOUS-2). Categories: Cerebral Vasospasm and Triple H Therapy Author: Bach D, Frey A, Higashida RT, Kassell N, Keller E, Macdonald RL, Marr A, Mayer SA, Molyneux A, Raabe A, Roux S, Vajkoczy P, Wanke I