- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03620370
Normobaric Hyperoxia Combined With Reperfusion for Acute Ischemic Stroke
July 18, 2023 updated by: Ji Xunming,MD,PhD, Capital Medical University
The Safety and Efficacy of Normobaric Hyperoxia Combined With Reperfusion for Acute Ischemic Stroke:A Randomized, Controlled Pilot Study
NBO is a nonpharmacological measure of neuroprotection.
The purpose of our study is to evaluate the safety and efficiency of NBO(Normobaric hyperoxia) in the acute ischemic stroke patients who received endovascular treatment.
Looking for more clinical evidence for the ischemic stroke patients who will be treated with NBO in the future.
Study Overview
Study Type
Interventional
Enrollment (Actual)
86
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Beijin, China
- Xuanwu hospital;Capital Medical University
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 80 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Male or female, age≥18 and ≤ 80;
- Suspected lage vessel occlusion of acute anterior circulation occlusion; i.e. either the ICA or the M1-segment of the MCA;
- Acute ischemic stroke where patient is ineligible for intravenous thrombolytic treatment or the treatment is contraindicated, or where patient has received intravenous thrombolytic therapy without recanalization;
- Patient treatable within 6 hours of symptom onset;or it has been more than 6 hours but not more than 24 hours,and imaging confirmed the existence of ischemic penumbra;
- NIHSS score≥6分
- Alberta Stroke Program Early CT score (ASPECTS) of 7-10 on non-contrast CT;
- Informed consent obtained;
Exclusion Criteria:
- Rapid improvement in neurological status to an NIHSS < 6 or evidence of vessel recanalization prior to randomization;
- Seizures at stroke onset;
- Intracranial hemorrhage;
- Systolic pressure greater than 185 mm Hg or diastolic pressure greater than 110 mm Hg, or aggressive treatment intravenous medication)necessary to reduce blood pressure to these limits;
- Symptoms rapidly improving;
- Symptoms suggestive of subarachnoid hemorrhage, even if CT scan was normal;
- Platelet count of less than 100,000 per cubic millimeter;
- CT showed a multiple infarction (low density area greater than 1/3 cerebral hemisphere);
- severe hepatic or renal dysfunction;
- active and chronic obstructive pulmonary disease or acute respiratory distress syndrome;
- >3 L/min oxygen required to maintain peripheral arterial oxygen saturation (SaO2)﹥95% as per current stroke management guidelines;
- medically unstable;
- inability to obtain informed consent;
- Life expectancy<90 days;
- Pregnant or breast-feeding women;
- Unwilling to be followed up or poor compliance for treatment;
- Patients being enrolled or having been enrolled in other clinical trial within 3 months prior to this clinical trial;
- Evidence of intracranial tumor;
- Baseline blood glucose of < 50 mg/dL (2.78 mmol) or > 400 mg/dL (22.20 mmol);
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: NBO group
Normobaric oxygen therapy is the delivery of high-flow oxygen (10L/min) via oxygen storage facemask.
This therapy should start in the pre-hospital or emergency room as soon as possible (within 1 hours) after diagnosis of ischemic stroke and last for 4 hours.
All participant will receive mechanical thrombectomy and a standard clinical therapy.
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In this study, it is simple to administer via oxygen storage facemask at flow rates of 10 L/min for 4 hours.
This therapy start should in Pre-hospital or emergency room as early as possible after diagnosed ischemic stroke and uninterrupted during other treatments including mechanical thrombolytic therapy and standard clinical treatment.
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No Intervention: Control group
The participants receive mechanical thrombectomy therapy after diagnosed ischemic.
All participants receive a standard clinical therapy.
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Cerebral infarct volume
Time Frame: 24-48h after randomization
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Infarct volume is evaluated mainly through brain MRI(DWI)
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24-48h after randomization
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
levels of blood biomarkers
Time Frame: baseline; 24 ± 6 hours, 7 ± 2 days
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Biomarkers for evaluation of BBB damage and brain injury:NSE、S100B、occludin、 claudin-5、MMP-9
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baseline; 24 ± 6 hours, 7 ± 2 days
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modified Rankin Scale score (mRS)
Time Frame: 30 ± 5 days, 90 ± 10 days after randomization
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secondary clinical efficacy endpoint;the mRs is an ordinal disability score of 7 categories (0 = no symptoms to 5 = severe disability, and 6 = death)
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30 ± 5 days, 90 ± 10 days after randomization
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The good prognosis at 90 days assessed by modified Rankin scale (mRS).
Time Frame: 90 ± 10 days after randomization
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secondary clinical efficacy endpoint;the mRs is an ordinal disability score of 7 categories (0 = no symptoms to 5 = severe disability, and 6 = death);The ratio of 0 to 2;
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90 ± 10 days after randomization
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Scores assessed by National Institutes of Health Stroke Scale(NIHSS)
Time Frame: 2 hours ± 15 minutes, 24 ± 6 hours, 7 ± 2 days, 30 ± 5 days after randomization ]
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secondary clinical efficacy endpoint; the NIHSS is a stroke severity score that is composed of 11 items; range from 0 to 42, higher values indicate more severe deficits
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2 hours ± 15 minutes, 24 ± 6 hours, 7 ± 2 days, 30 ± 5 days after randomization ]
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Change in National Institutes of Health Stroke Scale (NIHSS) score from baseline to 24 hours
Time Frame: from baseline to 24 ± 6 hours
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secondary clinical efficacy endpoint;the NIHSS is a stroke severity score composed of 11 items (range from 0 to 42, higher values indicate more severe deficits)
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from baseline to 24 ± 6 hours
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Improvement of neurologic function after 24h
Time Frame: 24 ± 6 hours;
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NIHSS score decreased by more than 4 points or NIHSS score was 0;secondary clinical efficacy endpoint;the NIHSS is a stroke severity score composed of 11 items (range from 0 to 42, higher values indicate more severe deficits)
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24 ± 6 hours;
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Barthel Index (BI)
Time Frame: 30 ± 5 days, 90 ± 10 days after randomization
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secondary clinical efficacy endpoint;the BI is an ordinal disability score of 10 categories(range from 0 to 100, higher values indicate better prognosis);
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30 ± 5 days, 90 ± 10 days after randomization
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Revascularization on 24-hour follow-up imaging
Time Frame: 24 (12 to 36) hours;
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secondary imaging efficacy endpoint;
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24 (12 to 36) hours;
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24-hour neurologic deterioration;
Time Frame: 24 ± 6 hours;
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NIHSS score increased by more than 4 points);the NIHSS is a stroke severity score composed of 11 items (range from 0 to 42, higher values indicate more severe deficits);clinical safety endpoint;
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24 ± 6 hours;
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any intracranial hemorrhage on 24-hour follow-up imaging
Time Frame: 24 (12 to 36) hours
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imaging safety endpoints;per ECASS III definition and per Heidelberg bleeding classification
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24 (12 to 36) hours
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Symptomatic Intracerebral Hemorrhage
Time Frame: 24 (12 to 36) hours
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imaging safety endpoints;Deterioration in NIHSS score of ≥4 points within 24 hours;per ECASS III definition and per Heidelberg bleeding classification
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24 (12 to 36) hours
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Mortality and Stroke recurrence
Time Frame: 90 ± 10 days after randomization
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clinical safety endpoint;
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90 ± 10 days after randomization
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Survival rates
Time Frame: 7 ± 2 days, 90 ± 10 days after randomization
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secondary clinical efficacy endpoint;
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7 ± 2 days, 90 ± 10 days after randomization
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TICI (Thrombolysis in Cerebral Infarction perfusion scale grade)
Time Frame: Time Frame: 4 hours ± 15 minutes
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secondary imaging efficacy endpoint;
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Time Frame: 4 hours ± 15 minutes
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The infarct volume on 24-hour follow-up imaging
Time Frame: 24 (12 to 36) hours;
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The infarct volume of cerebral infarct is evaluated by cranial CT;
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24 (12 to 36) hours;
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mRS4-6
Time Frame: 90 ± 10 days after randomization
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secondary clinical efficacy endpoint;the mRs is an ordinal disability score of 7 categories (0 = no symptoms to 5 = severe disability, and 6 = death)
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90 ± 10 days after randomization
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Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Subgroup analysis of infarct volume
Time Frame: 24-48h after randomization
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Stratify according to different risk factors:ASPECT; NIHSS; age;Ischemic penumbra volume; Site of occlusion; Time from stroke onset to randomization;Ischemic penumbra volume
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24-48h after randomization
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (Actual)
August 12, 2018
Primary Completion (Actual)
July 21, 2019
Study Completion (Actual)
October 19, 2019
Study Registration Dates
First Submitted
August 3, 2018
First Submitted That Met QC Criteria
August 7, 2018
First Posted (Actual)
August 8, 2018
Study Record Updates
Last Update Posted (Actual)
July 19, 2023
Last Update Submitted That Met QC Criteria
July 18, 2023
Last Verified
July 1, 2020
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- OPENS-1
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
No
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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