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Showing 1–24 of 56 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Firefighters Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Feeding America's Bravest: Mediterranean Diet-Based Interventions to Change Firefighters' Eating Habits

NCT02941757
View directory record Official record
Conditions
Diet, Mediterranean, Health Behavior, Program Sustainability, Program Effectiveness
Interventions
Mediterranean diet Intervention
Behavioral
Lead sponsor
Harvard School of Public Health (HSPH)
Other
Eligibility
18 Years and older
Enrollment
486 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 13, 2020 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional

The Influence of Cardiorespiratory Fitness on Firefighter Cardiovascular Health Under Exercise Conditions

NCT04514354
View directory record Official record
Conditions
Cardiovascular Diseases, Post-Exercise Hypotension
Interventions
GEST
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
21 Years and older
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Aug 13, 2020 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Implementing Good Nutrition to Improve, Transform, and Enhance (IGNITE) Firefighters' Health

NCT06567561
View directory record Official record
Conditions
Cancer, Inflammation, Microbiome, Immune Function
Interventions
Whole Foods Plant-Based Diet, Usual Firehouse Diet
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Apr 7, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Enrolling by invitation Phase 4 Interventional

Evaluating Worksite Sleep Health Coaching in Firefighters: The Sleep Assistance for Firefighters Study

NCT06684444
View directory record Official record
Conditions
Cognitive Behavioral Therapy, Sleep Initiation and Maintenance Disorders, Sleep Deprivation, Sleep Disorders, Intrinsic
Interventions
firefighter Sleep Health Coaching Intervention (ffSHC), Control (Minimally Enhanced Usual Care)
Behavioral
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 15, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Smokeless Tobacco Cessation Intervention for Firefighters

NCT05111041
View directory record Official record
Conditions
Smokeless Tobacco Cessation
Interventions
#EnufSnuff.TXT- First Responder, Enough Snuff Intervention
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 12, 2024 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lung Cancer Risk and Early Detection in Firefighters

NCT04614129
View directory record Official record
Conditions
Lung Cancer, Lung Diseases
Interventions
Low Dose CT
Diagnostic Test
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
40 Years to 80 Years
Enrollment
734 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 23, 2025 · Synced Sep 2, 2026, 5:34 PM EDT
Terminated No phase listed Observational

Firefighter Cardiorespiratory Fitness (CRF) Pilot Study

NCT03585335
View directory record Official record
Conditions
Cardiorespiratory Fitness
Interventions
Not listed
Lead sponsor
HealthPartners Institute
Other
Eligibility
18 Years and older
Enrollment
131 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Bloomington, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 13, 2021 · Synced Sep 2, 2026, 5:34 PM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Peer Delivered, Emotion Regulation-Focused Mental Health Prevention Training for Fire Fighter Trainees

NCT06290778
View directory record Official record
Conditions
PTSD, Alcohol Use Disorder, Depression, Anxiety
Interventions
Brief Unified Protocol, Psychoeducation
Behavioral
Lead sponsor
Baylor Research Institute
Other
Eligibility
21 Years and older
Enrollment
480 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Behavioral Treatments for Acute Stress Disorder In Firefighters

NCT00183508
View directory record Official record
Conditions
Stress Disorders, Post-Traumatic
Interventions
Cognitive behavioral therapy, Psychoeducation
Behavioral
Lead sponsor
Boston University
Other
Eligibility
21 Years to 65 Years
Enrollment
169 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Promoting Healthy Lifestyles Among Firefighters

NCT00006181
View directory record Official record
Conditions
Cardiovascular Diseases, Cancer, Physical Activity, Nutrition
Interventions
Team-based intervention, One-on-one intervention
Behavioral
Lead sponsor
Oregon Health and Science University
Other
Eligibility
Not listed
Enrollment
600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2003
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jan 6, 2014 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Phase 3 Interventional Results available

Firefighter Aged Garlic Extract Investigation With CoQ10 as a Treatment for Heart Disease (FAITH)

NCT00860847
View directory record Official record
Conditions
Coronary Atherosclerosis, Coronary Artery Calcification, Coronary Stenosis
Interventions
Aged garlic extract and Coenzyme Q10
Dietary Supplement
Lead sponsor
Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center
Other
Eligibility
35 Years to 84 Years · Male only
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
1
States / cities
Torrance, California
Source: ClinicalTrials.gov public record
Updated Mar 11, 2015 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluation of Post-Exposure Sauna Treatment of Firefighters - A Pilot Study

NCT03429348
View directory record Official record
Conditions
Post-fire Rehabilitation of Firefighters in Sauna
Interventions
Sauna Rehabilitation
Other
Lead sponsor
University of Arizona
Other
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated Feb 4, 2021 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Rapid Heat Stress on Firefighters Musculoskeletal Injury Risk

NCT06442956
View directory record Official record
Conditions
Occupational Injuries, Heat Stress, Leg Injury, Back Injuries
Interventions
Rapid Heat Condition, Gradual Heat Condition
Other
Lead sponsor
Louisiana State University Health Sciences Center Shreveport
Other
Eligibility
18 Years to 57 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Shreveport, Louisiana
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Addressing Colorectal Cancer in South Florida Firefighters

NCT05976282
View directory record Official record
Conditions
Colorectal Cancer, CRC
Interventions
Fecal Immunochemical Test, Septin9 Test
Other
Lead sponsor
University of Miami
Other
Eligibility
40 Years to 65 Years
Enrollment
646 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 3, 2023 · Synced Sep 2, 2026, 5:34 PM EDT
Recruiting Phase 1Phase 2 Interventional

Examining a Novel Gastrointestinal Intervention to Negate Environmental Toxicants (ENGINE)

NCT07226440
View directory record Official record
Conditions
Toxicant Exposure, Firefighter, Occupational Exposure to Chemicals
Interventions
Colesevelam, Placebo
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years and older · Male only
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2028
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Will Hydroxychloroquine Impede or Prevent COVID-19

NCT04341441
View directory record Official record
Conditions
COVID-19, Coronavirus, Coronavirus Infections, SARS-CoV 2
Interventions
Hydroxychloroquine - Daily Dosing, Hydroxychloroquine - Weekly Dosing, Placebo oral tablet, Monitoring Visit - Baseline, Monitoring Visit - Week 4, Monitoring Visit - Week 8, Weekly Assessment
Drug · Other · Diagnostic Test
Lead sponsor
Henry Ford Health System
Other
Eligibility
18 Years to 75 Years
Enrollment
624 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Detroit, Michigan
Source: ClinicalTrials.gov public record
Updated Jun 20, 2022 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The First 20 Fire Academy Recruits Exercise Training Program

NCT03319394
View directory record Official record
Conditions
Physical Fitness
Interventions
The First Twenty, Comparison
Behavioral
Lead sponsor
Kansas State University
Other
Eligibility
18 Years and older
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Oct 23, 2017 · Synced Sep 2, 2026, 5:34 PM EDT
Completed No phase listed Observational

Food Intake REstriction for Health OUtcome Support and Education (FIREHOUSE) Trial

NCT03581006
View directory record Official record
Conditions
Lung Injury, Particulate Matter Inhalation Injury
Interventions
Low-Calorie Mediterranean Diet, Technology based monitoring and behavioral participation, Usual care group
Dietary Supplement · Combination Product · Other
Lead sponsor
NYU Langone Health
Other
Eligibility
21 Years to 90 Years · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Dec 2, 2021 · Synced Sep 2, 2026, 5:34 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Observational Study of Exposure to Environmental Toxicants Among Firefighters

NCT05643014
View directory record Official record
Conditions
Healthy
Interventions
Sample collection
Other
Lead sponsor
Masonic Cancer Center, University of Minnesota
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 11, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Peanut Butter on Sleep Quality and Daily Energy Levels in Fire Fighters

NCT06364202
View directory record Official record
Conditions
Sleep, Body Composition, Blood Pressure, Physical Activity
Interventions
Peanut Butter
Dietary Supplement
Lead sponsor
Augusta University
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Augusta, Georgia
Source: ClinicalTrials.gov public record
Updated Apr 14, 2024 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

EaseAlert: Tactile Firefighter Alerting System

NCT05641194
View directory record Official record
Conditions
Heart Rate, Sleep Habit, Sleep
Interventions
Legacy Alerting System, Intervention 2: EaseAlert Standalone
Device
Lead sponsor
Embry-Riddle Aeronautical University
Other
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
2
States / cities
Blue Springs, Missouri • Stillwater, Oklahoma
Source: ClinicalTrials.gov public record
Updated Mar 12, 2025 · Synced Sep 2, 2026, 5:34 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Behavior and Risk Awareness Through Video Education for Firefighters

NCT07494617
View directory record Official record
Conditions
Cancer Prevention, Firefighters
Interventions
Video 1, Video 2, Video 3, Video 4, Video 5
Other
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Cognitive Training for Firefighters With Tinnitus

NCT01458821
View directory record Official record
Conditions
Tinnitus
Interventions
Brain Fitness Program - Tinnitus
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
20 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 8, 2014 · Synced Sep 2, 2026, 5:34 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The First Twenty (TF20) for Volunteer Firefighters in a Clinic Based Setting

NCT02760628
View directory record Official record
Conditions
Obesity
Interventions
The First Twenty (TF20), Life Simple 7 (LS7)
Behavioral
Lead sponsor
National Development and Research Institutes, Inc.
Other
Eligibility
18 Years and older
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
2
States / cities
Leawood, Kansas • New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 21, 2018 · Synced Sep 2, 2026, 5:34 PM EDT