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Autonomic Control of the Circulation and VDR

RecruitingEARLY Phase 1Ages 21 Years - 35 YearsAllMilton S. Hershey Medical Center
NCT03513770 on ClinicalTrials.gov ↗
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In plain words

What the trial is, and whether it could suit you

The study objective of this project is to examine the mechanisms of the venous distension reflex (VDR) in humans. We hypothesize that COX blockade with ketorolac tromethamine, an intravenous NSAID, will attenuate the muscle sympathetic nerve activity (MSNA) response to limb venous distension. To gain further insight into whether the COX byproducts directly stimulate chemically-sensitive afferents, or enable venodilation and indirectly evoke afferent stimulation, we will measure vein size using 3T MRI during venous distention with and without ketorolac infusions.

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📋 Eligibility rules (as published)
Inclusion Criteria * Are capable of giving informed consent * Are any race or ethnicity * Are fluent in written and spoken English * Have a satisfactory history and physical exam to meet inclusion/exclusion criteria * Are free of acute or chronic medical conditions * Are 21 - 35 years of age (inclusive) * Weigh over 50 kg Exclusion Criteria * Are less than 21 or over 35 years of age * Are Pregnant or nursing women * Are prisoners or institutionalized individuals or unable to consent * Any chronic diseases (hypertension, heart, lung, neuromuscular disease, kidney disease, diabetes or cancer). * Are taking medications that may affect their cardiovascular or nervous system * Has taken an NSAID within 48 hours of any visit (visit will need to be rescheduled) * Has never taken NSAIDs and therefore would not know if they are allergic to it * Have a supine BP \>140/90 mmHg * Have known allergy to ibuprofen-like drugs (NSAIDS) or aspirin * Have history of asthma or nasal polyps * Have history of GI bleeding or ulcers * Subjects with ferromagnetic metal implants * Subjects who are claustrophobic
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What it tests

  • Wrist-to-elbow (W-E) occlusion
  • ketorolac tromethamine
  • saline control
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Where

1 site
Penn State Milton S. Hershey Medical Center
Hershey, United States
🤝 Taking part is your choice, and you can leave at any time. Only the trial team can confirm you are eligible — always decide together with your own doctor.
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