Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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RECRUITING
NA
100 participants
INTERVENTIONAL
2023-02-21
2026-08-31
Brief Summary
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
CROSSOVER
PREVENTION
NONE
Study Groups
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Very hot and dry
Subjects will be exposed to 3 hours in a climate chamber set to approximately 47 deg C and 15% relative humidity, which reflects a very hot and dry heat wave condition similar to the 2018 Los Angeles heat wave. Four visits will be required to complete this arm, with each visit a different cooling modality applied.
Water Spray
Participants will receive water spraying on their body throughout the climate chamber exposure.
Fan
Participants will be exposed to a fan throughout the climate chamber exposure.
Water Spray and Fan
Participants will receive both water spraying and a fan throughout the climate chamber exposure.
Control
Participants will NOT receive either water spray or a fan exposure.
Hot and humid
Subjects will be exposed to 3 hours in a climate chamber set to approximately 41 deg C and 40% relative humidity, which reflects hot and humid heat wave similar to the 1995 Chicago heat wave. Four visits will be required to complete this arm, with each visit a different cooling modality applied.
Water Spray
Participants will receive water spraying on their body throughout the climate chamber exposure.
Fan
Participants will be exposed to a fan throughout the climate chamber exposure.
Water Spray and Fan
Participants will receive both water spraying and a fan throughout the climate chamber exposure.
Control
Participants will NOT receive either water spray or a fan exposure.
Interventions
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Water Spray
Participants will receive water spraying on their body throughout the climate chamber exposure.
Fan
Participants will be exposed to a fan throughout the climate chamber exposure.
Water Spray and Fan
Participants will receive both water spraying and a fan throughout the climate chamber exposure.
Control
Participants will NOT receive either water spray or a fan exposure.
Eligibility Criteria
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Inclusion Criteria
* Free of any significant underlying medical problems based upon a detailed medical history and physical exam
Exclusion Criteria
* Other chronic medical conditions requiring regular medical therapy including cancer, diabetes, uncontrolled hypertension, and uncontrolled hypercholesterolemia etc;
* Abnormality detected on routine screening suggestive of provokable ischemia or previously undetected cardiac disease or resting left bundle branch block on screening electrocardiogram.
* Current smokers, as well as individuals who regularly smoked within the past 3 years
* Subject with a body mass index ≥31 kg/m2
* Pregnant individuals
65 Years
ALL
Yes
Sponsors
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University of Texas Southwestern Medical Center
OTHER
Responsible Party
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Craig Crandall
Professor of Internal Medicine
Locations
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Texas Health Presbyterian Hospital Dallas
Dallas, Texas, United States
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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STU-2022-0625
Identifier Type: -
Identifier Source: org_study_id
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