Enhanced Firefighter Rehab Trial: The Role of Aspirin in Preventing Heat Stress Induced Platelet Activation (EFFoRT)
Heat Stress Disorders
About this trial
This is an interventional prevention trial for Heat Stress Disorders focused on measuring firefighter, heat stress, platelet activation, aspirin
Eligibility Criteria
Inclusion Criteria:
1. Apparently healthy males and females aged 18-49 years
Exclusion Criteria:
- History of heart disease, vascular disease, or sudden death including prior MI, coronary revascularization, congenital heart disease or history of stroke
- Hypertension during screening: SBP>139 or DBP>89
- Those who are taking medications that may be expected to blunt the physiologic response to a treadmill exercise test (e.g. beta blockers)
- Prescription medication with known side effect of impaired thermoregulation
- Positive pregnancy test at any time during the study
- Resting ECG with clinical presentation suggesting coronary heart disease (e.g. pathologic Q wave)
- Known history of gastrointestinal disease or disorder i.e. diverticulitis which creates a theoretical risk of the core temperature capsule becoming lodged in the digestive tract
- Medications and supplements known to alter endothelial function (e.g. arginine, omega 3 fatty acids, NSAIDS, tobacco products. This exclusion may be disregarded for subjects willing to stop taking the supplement for the duration of the study
- At the discretion of the study physician for any other medical condition or prescription medication
- Known history of platelet dysfunction
- Aspirin allergy or intolerance
Sites / Locations
- University of Pittsburgh, Emergency Responder Human Performance Lab
Arms of the Study
Arm 1
Arm 2
Arm 3
Arm 4
Arm 5
Arm 6
Arm 7
Arm 8
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Experimental
Placebo Comparator
Daily ASA, Active cool, Acute ASA
Daily ASA, Active cool, Acute placebo
Daily ASA, Passive cool, Acute ASA
Daily ASA, Passive cool, Acute placebo
Daily placebo, active cool, Acute ASA
Daily placebo, active cool, Acute placebo
Daily placebo, Passive cool, Acute ASA
Daily placebo, Passive cool, Acute placebo
Two weeks of daily aspirin therapy prior to exercise, active cooling following exercise, aspirin immediately post exercise
Two weeks of daily aspirin therapy prior to exercise, active cooling following exercise, placebo immediately post exercise
Two weeks of daily aspirin therapy prior to exercise, passive cooling following exercise, aspirin immediately post exercise
Two weeks of daily aspirin therapy prior to exercise, passive cooling following exercise, placebo immediately post exercise
Two weeks of daily placebo prior to exercise, active cooling following exercise, aspirin immediately post exercise
Two weeks of daily placebo prior to exercise, active cooling following exercise, placebo immediately post exercise
Two weeks of daily placebo prior to exercise, passive cooling following exercise, aspirin immediately post exercise
Two weeks of daily placebo prior to exercise, passive cooling following exercise, placebo immediately post exercise