title: Imaging-based thrombolysis trial in acute ischemic stroke-II (ITAIS-II).
abstract: BACKGROUND
  Intravenous (i.v.) recombinant tissue plasminogen activator (rtPA) remains the only approved therapy for acute ischemic stroke. However, the use of i.v. thrombolysis is restricted to a minority of patients by the rigid 3-h time window. Modern imaging-based selection algorithms that can identify penumbra have been proposed as methods to extend the window and to select patients more likely to respond favorably or unfavorably to i.v. thrombolysis.
  
  
  OBJECTIVE
  We aim to compare the safety and efficacy of multiparametric computed tomography (CT)-based i.v. thrombolysis after 3-9 h of symptom onset with standard CT-based thrombolysis within 3 h and with CT-based thrombolysis or placebo after 3-6 h from the pooled data of the large stroke rtPA trials.
  
  
  METHODS
  The imaging-based thrombolysis trial in acute ischemic stroke-II study is a prospective, multicenter and assessor-blind controlled study. The primary efficacy outcome will be a favorable outcome at 90 days defined as a modified Rankin Scale and reperfusion improvement 24-36 h after treatment; the primary safety end-point outcome will be intracerebral hemorrhage 24-36 h after treatment. We aim to include 200 patients by 2010. It is registered with IRCTN number: ISRCTN12033002.
authors.affiliation: Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Yilong
authors.initials: Y
authors.lastname: Wang
authors.forename: Xiaoling
authors.initials: X
authors.lastname: Liao
authors.forename: Xingquan
authors.initials: X
authors.lastname: Zhao
authors.forename: Chunxue
authors.initials: C
authors.lastname: Wang
authors.forename: Liping
authors.initials: L
authors.lastname: Liu
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhou
authors.forename: Chunjuan
authors.initials: C
authors.lastname: Wang
authors.forename: Jing
authors.initials: J
authors.lastname: Xue
authors.forename: Peiyi
authors.initials: P
authors.lastname: Gao
authors.forename: Kehui
authors.initials: K
authors.lastname: Dong
authors.forename: Xunming
authors.initials: X
authors.lastname: Ji
authors.forename: Yongjun
authors.initials: Y
authors.lastname: Wang
mesh_terms: D005343:Fibrinolytic Agents / Q000008:administration & dosage*; D006801:Humans; D012107:Research Design; D020521:Stroke / Q000000981:diagnostic imaging* / Q000188:drug therapy*; D015912:Thrombolytic Therapy / Q000379:methods*; D013995:Time; D010959:Tissue Plasminogen Activator / Q000008:administration & dosage*; D014057:Tomography, X-Ray Computed
chemical_list: D005343:Fibrinolytic Agents; D010959:Tissue Plasminogen Activator