Lower Body Negative Pressure to See if Noninvasive Monitors Are Accurate
Official title: Lower Body Negative Pressure to Validate Physiological Monitors
Run by Mayo Clinic · NCT07840144 · Data updated 2026-11-12
This study tests whether noninvasive physiological monitors accurately track body responses while the body experiences controlled lower body negative pressure.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years to 55 Years |
| Sex | All |
| Enrollment | 50 (estimated) |
| Sponsor | Mayo Clinic Academic / other |
| Locations | 1 site (Rochester, Minnesota) |
| Status | Recruiting |
| Started | September 30, 2026 |
| Main results expected | September 28, 2028 |
| Study ends | September 28, 2028 |
| Registry record updated | September 24, 2026 |
| Trial ID | NCT07840144 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are healthy, non-obese adults without systemic diseases, not on medications affecting autonomic responses, and not pregnant.
✕Probably not a fit
Patients with systemic diseases, on relevant medications, or pregnant individuals may not benefit from this validation.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
Researchers at Mayo Clinic will apply lower body negative pressure to healthy adults and measure how well noninvasive monitors reflect physiological changes. The study focuses on monitoring reliability during orthostatic stress without chronic diseases or obesity. Participants undergo specific exclusions to minimize confounding autonomic responses. The goal is to validate simple, noninvasive devices for safely tracking physiological status in stressful conditions.
Why it matters
Potential benefit: If successful, noninvasive monitors could reliably track vital signs during stress, aiding safer assessment in clinical or field settings.
How similar studies have gone: Previous work in orthostatic stress and monitor validation has shown promise, but this study adds a focused look at LBNP conditions.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Non-obese (BMI\<30) * Non-smokers * Free of any systemic diseases including hypertension, diabetes, coronary artery disease, neurologic disease, or any other major medical co-morbidity. * Women will be either surgically sterilized or non-pregnant as determined by a urine pregnancy test (within 48 hours of the study day) Exclusion Criteria: * Individuals taking GLP-1 medications or compounds known to affect responses of the autonomic nervous system to orthostatic stress (e.g., β-blockers) * Pregnant women
Where it's running
-
Mayo Clinic
Rochester, Minnesota, United States Recruiting
Study contacts
- Principal investigator: Michael J. Joyner, MD — Mayo Clinic
- Study coordinator: Pamela Engrav
- Email: engrav.pamela@mayo.edu
- Phone: 507-255-6938
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.