- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05232240
Blood Pressure Variability in Non-hypertensive Patients With Ischemic Cerebrovascular Disease (BPV-NhICVD)
Study Overview
Status
Intervention / Treatment
Detailed Description
Hypertension is one of the most important risk factors of ischemic cerebrovascular disease (ICVD), while various blood pressure variability (BPV) indices are immerging as novel prognostic indicators independent of the blood pressure level. However, the BPV profiles without hypertension have not been specifically observed. Considering the great importance of blood pressure management in ICVD, more research is needed to clarify whether and how BPV will increase the vascular risk in non-hypertensive patients with ICVD. This prospective cohort study will be helpful to invoke an early management of blood pressure in patients with ICVD before the clinical establishment of hypertension.
All eligible non-hypertensive patients hospitalized for ICVD will be consecutively enrolled in this cohort. Blood pressure measurements are obtained with ambulatory 24-hour blood pressure monitoring (ABPM) every 20 minutes during day-time (6:00-22:00) and every 30 minutes during night-time (22:00-6:00) at baseline and one year after the enrollment. The clinical, imaging and laboratory information will be collected at baseline. During an estimated 3-year follow-up, the vessel-related diagnostic or monitoring procedures, treatment, functional status and new vascular events will be recorded by web-based patients' self-reports and investigators' regular telephone visits.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Locations
-
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Beijing
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Beijing, Beijing, China, 100053
- Recruiting
- Xuanwu Hospital, Capital Medical University
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Diagnosed as ischemic stroke or transient ischemic attack (TIA), with confirmation of computed tomography or magnetic resonance imaging.
- Less than 90 days after onset of ischemic stroke or TIA symptoms.
- The blood pressure measured 5~90 days after the ICVD onset without any anti-hypertension treatment is less than 140/90 mmHg (an average of ≥2 readings obtained on ≥ 2 occasions after emptying bladder, relaxing for more than 5 min, and avoiding caffeine, exercise, or smoking for at least 30 min before measurement).
- Consent to participate in the study.
Exclusion Criteria:
- A definite diagnosis of hypertension.
- Under anti-hypertension treatment.
- Worsening neurological conditions.
- With a National Institute of Health Stroke Scale score more than 5 points.
- Intracranial hemorrhage.
- Autonomic failure.
- With malignant tumors or poor organ functions or hematologic diseases, whose estimated life expectancy is less than 3 years.
- With contraindications to ambulatory 24-hour blood pressure monitoring or fail to finish the examination at baseline.
- Mental disease.
- Pregnant.
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Non-hypertensive patients with Ischemic Cerebrovascular Disease
The patients are diagnosed as ischemic cerebrovascular disease (ICVD) and less than 90 days after the onset of ischemic stroke or transient ischemic attack.
The patients have no definite diagnosis of hypertension, and are not under anti-hypertension treatment.
The blood pressure measured 5~90 days after the ICVD onset without any anti-hypertension treatment is less than 140/90 mmHg (an average of ≥ 2 readings obtained on ≥ 2 occasions after emptying bladder, relaxing for more than 5 min, and avoiding caffeine, exercise, or smoking for at least 30 min before measurement).
|
Diagnostic test: blood pressure variability measured by ambulatory 24-hour blood pressure monitoring
The ambulatory 24-hour blood pressure monitoring will be performed at baseline and one year after the enrollment.
Various blood pressure variability characteristics will be obtained from these examinations.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
3-year risk of Major Adverse Cardiovascular Event
Time Frame: 3 years
|
the time of first documented cardiovascular mortality (any mortality due to ischemic stroke, myocardial infarction, other cardiac diseases, or unobserved sudden death), ischemic stroke, myocardial infarction or unstable angina
|
3 years
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
90-day Functional Outcome
Time Frame: 90 days
|
percentage of patients with modified Rankin Scale (mRS) scores (minimum 0 and maximum 5) 3 to 5, who are considered to be disabled
|
90 days
|
1-year rate of Major Adverse Cardiovascular Event
Time Frame: 1 year
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the rate of cardiovascular mortality (any mortality due to ischemic stroke, myocardial infarction, other cardiac diseases, and unobserved sudden death), ischemic stroke, myocardial infarction and unstable angina
|
1 year
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1-year rate of Ischemic Stroke
Time Frame: 1 year
|
the rate of fatal and nonfatal ischemic stroke
|
1 year
|
1-year rate of Acute Coronary Syndrome
Time Frame: 1 year
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the rate of first documented fatal and nonfatal myocardial infarction and unstable angina
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1 year
|
1-year rate of Cardiovascular Mortality
Time Frame: 1 year
|
the rate of mortality due to ischemic stroke, myocardial infarction, other cardiac diseases, and unobserved sudden death
|
1 year
|
3-year risk of Ischemic Stroke
Time Frame: 3 years
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the time of first documented fatal or nonfatal ischemic stroke
|
3 years
|
3-year risk of Acute Coronary Syndrome
Time Frame: 3 years
|
the time of first documented fatal or nonfatal myocardial infarction or unstable angina
|
3 years
|
3-year risk of Cardiovascular Mortality
Time Frame: 3 years
|
the time of mortality due to ischemic stroke, myocardial infarction, other cardiac diseases, or unobserved sudden death
|
3 years
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- BPV-NhICVD
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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