Interplay of Central and Peripheral Vascular Effects of Insulin in Obesity (NCT07653464) | Clinical Trial Compass
Not Yet RecruitingEarly Phase 1
Interplay of Central and Peripheral Vascular Effects of Insulin in Obesity
United States64 participantsStarted 2026-08
Plain-language summary
In the present study, we seek to determine the impact of obesity with insulin resistance on the neurovascular response to brain insulin stimulation.
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:
* 18 to 65 years of age
Individuals with obesity and comorbid IR
* BMI 30-45 kg/m2
* Waist circumference ≥102 cm (men) or ≥88 cm (women)
* HOMA-IR ≥2.5
Healthy normal weight adults
* BMI 18-25 kg/m2
* Waist circumference \<94 cm (men) and \<80 cm (women)
* HOMA-IR \<2
Exclusion Criteria:
* Pregnancy, breastfeeding
* Unable to provide consent
* Diabetes or polycystic ovarian syndrome
* Known history of cardiovascular disease: heart failure, ischemic heart disease, peripheral artery disease, stroke
* Nerve/neurologic disease
* Uncontrolled hypertension (systolic blood pressure \>180 mmHg and/or diastolic blood pressure \>100 mmHg)
* Active cancer (excluding basal cell carcinoma or stage 1 squamous cell carcinoma of the skin)
* Current smoking, tobacco, nicotine use
* Use of pharmacological therapy for weight loss
* Body weight change \>10% within the last 6 months
* Adherence to \>150 min/week of moderate-to-vigorous physical activity/exercise
* Participation in any other research study or medical procedure involving significant ionizing radiation exposure in the past 12 months
* Claustrophobia
* Non-MRI compatible metal implants
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
Amount of muscle sympathetic nerve activity (MSNA)