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

Total Worker Health for Wildland Firefighters

NCT05753358
View directory record Official record
Conditions
Health Behavior, Total Worker Health, Occupational Health
Interventions
Total Worker Health for Wildland Firefighters
Other
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years and older
Enrollment
150 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 2, 2023 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Evaluation of Broccoli Seed and Sprout Extract for Detoxification of Carcinogens in Firefighters

NCT06009926
View directory record Official record
Conditions
Hematopoietic and Lymphatic System Neoplasm, Malignant Solid Neoplasm, Occupational Malignant Neoplasm
Interventions
Acetaminophen, Biospecimen Collection, Broccoli Sprout/Broccoli Seed Extract Supplement, Placebo Administration, Questionnaire Administration, Training
Drug · Procedure · Dietary Supplement + 1 more
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older
Enrollment
72 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Tucson, Arizona
Source: ClinicalTrials.gov public record
Updated May 12, 2026 · Synced Jun 26, 2026, 10:42 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Occupational Exposures Among Firefighters

NCT06173843
View directory record Official record
Conditions
Cancer
Interventions
PFAS / heavy metal testing, exposures
Other
Lead sponsor
Vincere Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2029
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 13, 2024 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Multi-Cancer Early Detection (MCED) of Firefighters

NCT05780957
View directory record Official record
Conditions
Cancer
Interventions
MCED
Other
Lead sponsor
Vincere Cancer Center
Other
Eligibility
18 Years and older
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2030
U.S. locations
1
States / cities
Scottsdale, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Feasibility of a Train-the-Trainer Delivered Exercise Intervention in Firefighters

NCT05287594
View directory record Official record
Conditions
Firefighter, High Intensity Interval Training
Interventions
Integrated Exercise Program
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 60 Years
Enrollment
55 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Jun 26, 2026, 10:42 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

The Impact of Self-assessment on Hydration

NCT06954909
View directory record Official record
Conditions
Hydration Status
Interventions
Hydration education and self-assessment
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
18 Years to 65 Years
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated May 7, 2026 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Mindful Attention Training Workshop for Firefighters

NCT04909216
View directory record Official record
Conditions
Post Traumatic Stress Disorder, Mindfulness, Firefighters, Trauma, Mental Disorders
Interventions
Mindful Attention Workshop
Other
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
82 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 8, 2023 · Synced Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Exercise & Diet Effects on CV Risk in Firefighters

NCT03344198
View directory record Official record
Conditions
Cardiovascular Risk Factor, Blood Pressure, Exercise, Diet Modification, Health Promotion
Interventions
Circuit Training exercise & Modified Mediterranean diet
Behavioral
Lead sponsor
University of New Hampshire
Other
Eligibility
18 Years to 70 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
San Marcos, California
Source: ClinicalTrials.gov public record
Updated Aug 6, 2023 · Synced Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The First Twenty for Volunteer Firefighters

NCT03181321
View directory record Official record
Conditions
Obesity, Cardiovascular Diseases, Occupational Injuries
Interventions
The First Twenty
Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
18 Years and older
Enrollment
419 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jun 28, 2018 · Synced Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cranial Electrotherapy Stimulation: Piloting a Road to PTSD Prevention in First Responders

NCT06203717
View directory record Official record
Conditions
Adults
Interventions
Alpha-Stim AID cranial electrotherapy stimulation
Device
Lead sponsor
Butler Hospital
Other
Eligibility
18 Years to 56 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Nov 4, 2025 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Glucose Levels as a Biomarker for Stress in Firefighters

NCT06899373
View directory record Official record
Conditions
Stress, Sympathetic Nervous System, Hypothalamic Pituitary Adrenal
Interventions
Continuous glucometer
Device
Lead sponsor
University of Utah
Other
Eligibility
18 Years and older
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Mar 27, 2025 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Nutritional Supplementation on Occupational Performance in Firefighters

NCT06172543
View directory record Official record
Conditions
Fatigue
Interventions
Creatine Monohydrate, Control
Dietary Supplement
Lead sponsor
Ward Dobbs
Other
Eligibility
18 Years to 55 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 14, 2023 · Synced Jun 26, 2026, 10:42 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

R2P Field Test of the EMS LiftKit: Validating Usability, Usefulness, Desirability, and Effects on Musculoskeletal Injuries in EMS Providers

NCT05551143
View directory record Official record
Conditions
Musculoskeletal Disorder
Interventions
LiftKit
Other
Lead sponsor
Ohio State University
Other
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 21, 2022 · Synced Jun 26, 2026, 10:42 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Pre-malignant States to Hematologic Malignancies in Firefighters

NCT06870760
View directory record Official record
Conditions
Clonal Hematopoiesis of Indeterminate Potential, Monoclonal Gammopathy, Non Hodgkin Lymphoma, Leukemia, Multiple Myeloma, Plasma Cell Disorder
Interventions
Monoclonal Gammopathy, Complete Blood Count with differential (CBC w/ diff), Clonal hematopoiesis (CHIP)
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
40 Years to 49 Years
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 15, 2026 · Synced Jun 26, 2026, 10:42 AM 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 Jun 26, 2026, 10:42 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Sleep Well Firefighters: An App-based Program to Improve Sleep, Cognition, and Behavioral Health in Firefighters

NCT07477184
View directory record Official record
Conditions
Sleep Health, Stress, Anxiety, Physical Activity, Nutrition, Cognition
Interventions
Sleep enhancement intervention, Standard of Care (Investigator Choice)
Behavioral
Lead sponsor
California Polytechnic State University-San Luis Obispo
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
San Luis Obispo, California
Source: ClinicalTrials.gov public record
Updated Mar 16, 2026 · Synced Jun 26, 2026, 10:42 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Healthy Heroes Study

NCT03533023
View directory record Official record
Conditions
Shift Workers' Health, Time Restricted Eating, Fasting
Interventions
Time Restricted Eating + Standard of Care, Standard of Care
Behavioral
Lead sponsor
University of California, San Diego
Other
Eligibility
21 Years to 65 Years
Enrollment
153 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Aug 3, 2021 · Synced Jun 26, 2026, 10:42 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Heartmatters Challenge - First Responders

NCT03322046
View directory record Official record
Conditions
Cardiovascular Diseases
Interventions
Lifestyle Program
Behavioral
Lead sponsor
Boston Heart Diagnostics
Industry
Eligibility
18 Years to 65 Years
Enrollment
185 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Framingham, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 25, 2017 · Synced Jun 26, 2026, 10:42 AM EDT