The Effect of Sympathetic Modulation on Cerebral Vasospasm Secondary to Aneurysmal Subarachnoid H… (NCT06443177) | Clinical Trial Compass
SuspendedNot Applicable
The Effect of Sympathetic Modulation on Cerebral Vasospasm Secondary to Aneurysmal Subarachnoid Hemorrhage
Stopped: Pending IDE
United States25 participantsStarted 2026-07-31
Plain-language summary
The purpose of the study is to see that in addition to existing therapy, how well an additional procedure named spinal cord stimulation might reduce blood vessel spasm from aneurysm rupture.
Who can participate
Age range
18 Years – 65 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Provision of signed and dated informed consent form
. Stated willingness to comply with all study procedures and availability for the duration of the study
. Diagnosed with Fisher grade 3 or 4 aneurysmal subarachnoid hemorrhage (1)
. Ability to undergo endovascular treatment of aneurysmal subarachnoid hemorrhage
. For females of reproductive potential: Negative pregnancy test at time of treatment
. Plan to undergo standard of care and follow-up
Exclusion criteria
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Pre-Cerebrovascular response - Velocity
Timeframe: Day 1 - Day 14
2
Pre-Cerebrovascular response - Resistance
Timeframe: Day 1 - Day 14
3
Pre-Cerebrovascular response - Lindegaard ratio
Timeframe: Day 1 - Day 14
4
Post-Cerebrovascular response - Velocity
Timeframe: Day 1 - Day 14
5
Post-Cerebrovascular response - Resistance
Timeframe: Day 1 - Day 14
6
Post-Cerebrovascular response - Lindegaard ratio
Timeframe: Day 1 - Day 14
7
Transcranial Doppler (TCD) velocities of cerebral arteries