Impact of Intranasal Insulin on Sympathetic Activity and Cerebral Vasodilation (NCT05153395) | Clinical Trial Compass
SuspendedEarly Phase 1
Impact of Intranasal Insulin on Sympathetic Activity and Cerebral Vasodilation
Stopped: Interim data and power analysis
United States65 participantsStarted 2021-12-01
Plain-language summary
The purpose of this project is to examine the impact of increases in brain insulin on sympathetic nervous system activity, as well as peripheral and cerebral blood flow in humans.
Who can participate
Age range
18 Years – 45 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:
* healthy adult men and women;
* 18-45 years of age;
* BMI \>18 kg/m2;
* non-pregnant/non-breastfeeding;
* non-nicotine users;
Exclusion Criteria:
* taking any medications known to affect metabolic, respiratory, cardiovascular, and/or autonomic
Self-reported history of:
* hepatic, renal, pulmonary, cardiovascular, or neurological disease;
* stroke or neurovascular disease;
* bleeding/clotting disorders;
* sleep apnea or other sleep disorders;
* diabetes;
* smoking;
* history of alcoholism or substance abuse;
* hypertension;
* respiratory disease;
* active cancer;
* autoimmune disease.
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.