Normobaric Hyperoxia Combined With Intravenous Thrombolysis for Acute Ischemic Stroke (OPENS-3)
Overview
- Phase
- Phase 3
- Intervention
- Normobaric Hyperoxia
- Conditions
- Acute Ischemic Stroke
- Sponsor
- Ji Xunming,MD,PhD
- Enrollment
- 1230
- Locations
- 1
- Primary Endpoint
- Utility-weighted modified Rankin scale scores
- Status
- Recruiting
- Last Updated
- 2 years ago
Overview
Brief Summary
The purpose of this study is to determine the efficacy and safety of Normobaric Hyperoxia combined with intravenous thrombolysis for acute ischemic stroke.
Detailed Description
In this study, cases of acute ischemic stroke who undergo intravenous thrombolysis within 4.5 hours from onset are included. The Normobaric Hyperoxia(NBO) group receive basic intravenous thrombolysis and given 100% oxygen inhalation at a ventilation rate of 10L/ min using a sealed non-ventilating oxygen storage mask and keep giving oxygen for 4 hours. The control group receive basic intravenous thrombolysis and given oxygen inhalation at a ventilation rate of 1L/min using nasal cannula and keep giving oxygen for 4 hours. The investigators aimed to determine the efficacy and safety of Normobaric Hyperoxia combined with intravenous thrombolysis for acute ischemic stroke.
Investigators
Ji Xunming,MD,PhD
Professor
Capital Medical University
Eligibility Criteria
Inclusion Criteria
- •Age≥18 years;
- •The time from onset to randomization is within 4.5 hours of onset;
- •The clinical diagnosis is acute ischemic stroke (the criteria followed the Chinese Guidelines for the Diagnosis and Treatment of Acute Ischemic Stroke 2018);
- •Baseline NIHSS (at the time of randomization) should be ≥5 and ≤25 points;
- •Pre-stroke mRS score≤1 points;
- •Informed consent from the patient or surrogate.
Exclusion Criteria
- •Intracranial hemorrhage (including parenchymal hemorrhage, intraventricular hemorrhage, subarachnoid hemorrhage, subdural/extradural hematoma, etc.);
- •Past history of intracranial hemorrhage;
- •Rapid neurological function improvement, NIHSS score less than 5 points;
- •Presence of proximal arterial occlusion on computed tomographic angiography(CTA)/magnetic resonance angiography(MRA) (e.g., intracranial internal carotid artery(ICA), middle cerebral artery(MCA)-M1, and vertebrobasilar arteries);
- •Massive anterior cerebral infarction identified by CT or MRI (ASPECT \< 6 or lesions larger than one third of the territory of the middle cerebral artery);
- •Intended to proceed endovascular treatment;
- •Pregnant women, or planning to become pregnant during the trial;
- •A history of severe head trauma or stroke within 3 months;
- •A history of intracranial or spinal surgery within 3 months;
- •A history of gastrointestinal or urinary bleeding within 3 weeks;
Arms & Interventions
NBO group
Normobaric Hyperoxia combined with intravenous thrombolysis
Intervention: Normobaric Hyperoxia
NBO group
Normobaric Hyperoxia combined with intravenous thrombolysis
Intervention: Intravenous thrombolysis(rt-PA)
Control group
Nasal oxygen combined with intravenous thrombolysis
Intervention: Nasal oxygen
Control group
Nasal oxygen combined with intravenous thrombolysis
Intervention: Intravenous thrombolysis(rt-PA)
Outcomes
Primary Outcomes
Utility-weighted modified Rankin scale scores
Time Frame: 90±7 days after randomization
Utility-weighted modified Rankin scale scores
Secondary Outcomes
- Cerebral infarct volume(24-48hours after randomization)
- EuroQol five dimensions questionnaire（EQ-5D）(baseline before randomization,7 ± 2 days,30 ± 7 days,90 ± 7 days after randomization)
- Systematic bleeding(24 ± 6 hours after randomization)
- The proportion of neurological function improvement(24 ± 6 hours after randomization)
- Barthel Index (BI)(30 ± 7 days,90 ± 7 days after randomization)
- Days of hospitalization(30 ± 7 days after randomization)
- Asymptomatic intracranial hemorrhage(24 ± 6 hours after randomization)
- Oxygen-related adverse events(90 ± 7 days after randomization)
- Unit costs(7 ± 2 days, 30 ± 7 days,90 ± 7 days after randomization)
- Excellent functional outcome(90±7 days after randomization)
- modified rankin scale (mRS) score(90±7 days after randomization)
- Scores assessed by National Institutes of Health Stroke Scale(NIHSS)(4 ± 2 hours, 24 ± 6 hours, 72 ± 24 hours, 7 ± 2 days after randomization)
- Proportion of subjects with modified rankin scale (mRS) 0-1(30 ± 7 days after randomization)
- Symptomatic intracranial hemorrhage(24 ± 6 hours after randomization)
- PH2 intracranial hemorrhage(24 ± 6 hours after randomization)
- Any intracranial hemorrhage(24 ± 6 hours after randomization)
- Early neurological deterioration(24 ± 6 hours after randomization)
- PaCO2 of arterial blood gas analysis(after 4 hours of oxygen therapy)
- Potential of hydrogen(PH) of arterial blood gas analysis(after 4 hours of oxygen therapy)
- Good functional outcome(90 ± 7 days after randomization)
- Proportion of subjects with modified rankin scale (mRS) 0-3(90 ± 7 days after randomization)
- Adverse events/serious adverse events(24 ± 12 hours, 7 ± 2 days, 90± 7 days after randomization)
- Systolic and diastolic blood pressure(24 ± 6 hours after randomization)
- Stroke-related mortality(90 ± 7 days after randomization)
- All-cause mortality(90 ± 7 days after randomization)
- PaO2 of arterial blood gas analysis(after 4 hours of oxygen therapy)
- Concentration of Lactic acid of arterial blood gas analysis(after 4 hours of oxygen therapy)
- Respiratory rate(24 ± 6 hours after randomization)
- Oxygen saturation(24 ± 6 hours after randomization)
- Heart rate(24 ± 6 hours after randomization)