- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01613235
Induced Hypertension for Treatment of Delayed Cerebral Ischaemia After Aneurysmal Subarachnoid Haemorrhage (HIMALAIA)
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Background
Subarachnoid haemorrhage (SAH) from a ruptured cerebral aneurysm is a subset of stroke with a poor prognosis. Delayed cerebral ischemia (DCI) is a major complication after SAH in around 30% of SAH patients and increases case fatality 1.5 - 3 fold. One option to treat DCI is to use induced hypertension, alone or in combination with haemodilution and hypervolemia, so called Triple-H, but the efficacy of induced hypertension in reducing DCI is based on case series only, and not on a randomised clinical trial.
Objective
To investigate the outcome after induced hypertension versus no induced hypertension in patients with DCI after aneurysmal SAH.
Study design
A multi-centre, single blinded, randomized controlled trial.
Study population
Patients admitted to one of the participating centres after recent SAH with a treated aneurysm and DCI based on the onset of a new focal deficit and/or a decrease of the level of consciousness of at least 1 point of the Glasgow Coma Scale with exclusion of other causes of deterioration, will be randomized to either hypertension (n=120) or no hypertension (n=120).
Interventions
Patients in arm 1 will have their blood pressure raised in order to improve cerebral blood flow (CBF). In case of a low cardiac output, inotropics will be added. Induced hypertension will be continued for at least 48 hours when patients show some improvement within the first 24 hours. After 48 hours, the dose of vasopressor will be tapered daily, and resumed in case of clinical deterioration. In patients who do not show any improvement within 24 hours, induced hypertension will not be continued. In patients in arm 2 of the trial, hypertension will not be induced. Patients in both arms of the trial will be treated with oral nimodipine and normovolaemia without haemodilution. In some selected centres, an extra perfusion CT scan is performed 24-36 hours after instalment of the treatment. Measurement of CBF is performed in all participants with perfusion CT-scanning of the brain at the beginning of the study (as part of regular patient care), and after 24-36 hours.
Main outcome measurement
The modified Rankin scale at 3 months after the SAH, will be compared between patients who were randomized to induced hypertension and patients who were randomized to no induced hypertension.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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Utrecht, Netherlands, 3584 CX
- Universitair Medisch Centrum Utrecht
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Noord Holland
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Amsterdam, Noord Holland, Netherlands, 1105AZ
- Academic Medical Centre Amsterdam
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion criteria for eligibility
- Admission to one of the participating study centres.
- Age 18 years or over.
- SAH with an aneurysmatic bleeding pattern.
Exclusion criteria for eligibility
- Evidence of DCI after the SAH, defined as any decrease in the level of consciousness or the development of new focal neurological deficits after the onset of the SAH that is not due to increasing hydrocephalus, rebleeding of the aneurysm, epileptic seizure, septic- or metabolic encephalopathy, unless symptoms of DCI started within 3 hours.
- Co-existing severe head injury.
- Perimesencephalic haemorrhage (perimesencephalic bleeding pattern and no aneurysm on CT-angiography).
- A history of a ventricular cardiac rhythm disorder, necessitating medical treatment.
- A history of a left ventricular heart failure, necessitating medical treatment.
- Likely transfer to another hospital, not participating in the trial, soon after treatment for the aneurysm.
- Moribund.
Pregnancy.
And furthermore, in selected centres where the sub study with CT perfusion will be performed:
- Known allergy for CT-contrast agents.
- Renal failure, defined as a serum creatinine > 150 µmol/l, because of the risk of contrast nephropathy.
- Diabetes mellitus.
Inclusion criteria for trial participation
- Informed consent to participate in the proposed trial when DCI will develop.
- DCI based on a decrease of at least one point on the Glasgow Coma Scale sum score unless the decrease doesn't reflect DCI as evaluated by the treating physician, and/or the development of new focal neurological deficits, diagnosed by a neurologist, neurosurgeon or intensivist.
Exclusion criteria for trial participation:
- Another cause for neurological deterioration including.
- A symptomatic aneurysm not yet treated by coiling or clipping.
- Severe hypertension, defined as a spontaneous MAP of 120 mmHg or more at the moment of evaluation for trial participation.
Any contraindication for induced hypertension (such as a cardiac complication necessitating medical treatment) as evaluated by the treating physician.
And furthermore, in selected centres where the sub study with CT perfusion will be performed:
- No CTP scan at time of neurological deterioration.
- More than 3 CTP scans since admission.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: SINGLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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NO_INTERVENTION: No intervention
No induced hypertension (reference group)
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ACTIVE_COMPARATOR: Induced hypertension
Patients who are randomised to this arm will have their blood pressure raised with vasopressors and fluids.
Blood pressure will be raised in order to improve cerebral blood flow (CBF).
In case of a low cardiac output, inotropics will be added.
Induced hypertension will be continued for at least 48 hours when patients show some improvement within the first 24 hours.
After 48 hours, the dose of vasopressor will be tapered daily, and resumed in case of clinical deterioration.
In patients who do not show any improvement within 24 hours, induced hypertension will not be continued.
|
Blood pressure will be raised in order to improve cerebral blood flow (CBF).
In case of a low cardiac output, inotropics will be added.
Induced hypertension will be continued for at least 48 hours when patients show some improvement within the first 24 hours.
After 48 hours, the dose of vasopressor will be tapered daily, and resumed in case of clinical deterioration.
In patients who do not show any improvement within 24 hours, induced hypertension will not be continued.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
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The main outcome measurement will be the modified Rankin scale at 3 months after the SAH, compared between patients who were randomized to induced hypertension and patients who were randomized to no induced hypertension.
Time Frame: assessed three months after the SAH
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assessed three months after the SAH
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Related to treatment failure: proportion of patients in the induced hypertension group in which induced hypertension did not give clinical improvement of symptoms of DCI within 24 hours
Time Frame: 24 hours after start of induced hypertension
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24 hours after start of induced hypertension
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Related to the functional condition: Case fatality 30 days after SAH
Time Frame: 30 days per patient
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30 days per patient
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Related to the functional condition, activities of daily living (ADL), three months after the SAH assessed with the Barthel Index.
Time Frame: assessed 3 months after the SAH
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assessed 3 months after the SAH
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Related to the functional condition: quality of life, three months after the SAH, estimated with the Stroke Specific Quality of Life Scale (SSQoL-12-NL).
Time Frame: assessed 3 months after the SAH
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assessed 3 months after the SAH
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Related to the functional condition: anxiety and depression, three months after the SAH, assessed with the Hospital Anxiety and Depression Scale (HADS).
Time Frame: assessed 3 months after the SAH
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assessed 3 months after the SAH
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Related to the functional condition: cognitive functioning, three months after the SAH, evaluated by the Cognitive Failures Questionnaire (CFQ).
Time Frame: assessed 3 months after the SAH
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assessed 3 months after the SAH
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Related to adverse effects: complications related to insertion of a central venous catheter or intra-arterial catheter (including local haemorrhage and pneumothorax).
Time Frame: during hospital admission, an average of 3 weeks
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during hospital admission, an average of 3 weeks
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Related to adverse effects: intracranial complications related to induced hypertension (such as exacerbation of cerebral oedema, hemorrhagic infarction and bleeding of an asymptomatic aneurysm).
Time Frame: during admission, an average of 3 weeks
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during admission, an average of 3 weeks
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Related to adverse effects± • Systemic complications related to induced hypertension (including cardiac rhythm disorders, low cardiac output state and cardiac ischemia).
Time Frame: during admission, an average of 3 weeks
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during admission, an average of 3 weeks
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In selected centres: Related to the influence on cerebral haemodynamics: the difference in CBF, CBV, TTP and MTT between the intervention and the control groups 24-36 hours after the start of the study (i.e. CTP-2)
Time Frame: compared between scans made during admission at time of deterioration and 36 hours later.
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compared between scans made during admission at time of deterioration and 36 hours later.
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Related to the influence on cerebral haemodynamics: the difference in CBF, CBV, TTP and MTT between the perfusion CT-scan (at baseline, the moment of deterioration, i.e. CTP-1) and the second perfusion CT-scan (CTP-2) within the same patients.
Time Frame: compared between scans made during admission at time of deterioration and 36 hours later.
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compared between scans made during admission at time of deterioration and 36 hours later.
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Direct medical costs of used health care resources and indirect, non-medical costs of lost productivity, will be compared between the two arms of the trial, twelve months after the SAH.
Time Frame: assessed at 12 months after the SAH
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assessed at 12 months after the SAH
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Collaborators and Investigators
Investigators
- Principal Investigator: Arjen Slooter, MD, PhD, AMC Amsterdam and UMC Utrecht
- Principal Investigator: Walter van den Bergh, MD, PhD, AMC Amsterdam and UMC Groningen
Publications and helpful links
General Publications
- Gathier CS, van der Jagt M, van den Bergh WM, Dankbaar JW, Rinkel GJE, Slooter AJC; HIMALAIA Study Group. Slow recruitment in the HIMALAIA study: lessons for future clinical trials in patients with delayed cerebral ischemia after aneurysmal subarachnoid hemorrhage based on feasibility data. Pilot Feasibility Stud. 2022 Aug 30;8(1):193. doi: 10.1186/s40814-022-01155-4. Erratum In: Pilot Feasibility Stud. 2022 Sep 22;8(1):214.
- Gathier CS, van den Bergh WM, van der Jagt M, Verweij BH, Dankbaar JW, Muller MC, Oldenbeuving AW, Rinkel GJE, Slooter AJC; HIMALAIA Study Group. Induced Hypertension for Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage: A Randomized Clinical Trial. Stroke. 2018 Jan;49(1):76-83. doi: 10.1161/STROKEAHA.117.017956. Epub 2017 Nov 20.
- Gathier CS, Dankbaar JW, van der Jagt M, Verweij BH, Oldenbeuving AW, Rinkel GJ, van den Bergh WM, Slooter AJ; HIMALAIA Study Group. Effects of Induced Hypertension on Cerebral Perfusion in Delayed Cerebral Ischemia After Aneurysmal Subarachnoid Hemorrhage: A Randomized Clinical Trial. Stroke. 2015 Nov;46(11):3277-81. doi: 10.1161/STROKEAHA.115.010537. Epub 2015 Oct 6.
- Gathier CS, van den Bergh WM, Slooter AJ; HIMALAIA-Study Group. HIMALAIA (Hypertension Induction in the Management of AneurysmaL subArachnoid haemorrhage with secondary IschaemiA): a randomized single-blind controlled trial of induced hypertension vs. no induced hypertension in the treatment of delayed cerebral ischemia after subarachnoid hemorrhage. Int J Stroke. 2014 Apr;9(3):375-80. doi: 10.1111/ijs.12055. Epub 2013 May 22.
Study record dates
Study Major Dates
Study Start
Primary Completion (ACTUAL)
Study Completion (ACTUAL)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (ESTIMATE)
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
- Pathologic Processes
- Necrosis
- Cardiovascular Diseases
- Vascular Diseases
- Cerebrovascular Disorders
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Infarction
- Stroke
- Brain Infarction
- Intracranial Hemorrhages
- Hypertension
- Brain Ischemia
- Ischemia
- Hemorrhage
- Cerebral Infarction
- Subarachnoid Hemorrhage
Other Study ID Numbers
- 10/157
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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