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ClinicalTrials.gov public records Last synced Oct 31, 2026, 4:29 AM EDT

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Showing 553–576 of 823 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Environment Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Choosing Healthy Options in College Environments and Settings

NCT01134783
View directory record Official record
Conditions
Obesity
Interventions
CHOICES Intervention
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 35 Years
Enrollment
441 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
3
States / cities
Coon Rapids, Minnesota • Inver Grove Heights, Minnesota • Saint Paul, Minnesota
Source: ClinicalTrials.gov public record
Updated Jun 17, 2016 · Synced Oct 31, 2026, 4:29 AM EDT
Recruiting Not applicable Interventional

BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia

NCT00912041
View directory record Official record
Conditions
Tetraplegia, Spinal Cord Injuries, Amyotrophic Lateral Sclerosis, Brain Stem Infarctions, Locked in Syndrome, Muscular Dystrophy
Interventions
Placement of the BrainGate2 sensor(s) into the motor-related cortex
Device
Lead sponsor
Leigh R. Hochberg, MD, PhD.
Other
Eligibility
18 Years to 80 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2038
U.S. locations
6
States / cities
Sacramento, California • Stanford, California • Atlanta, Georgia + 3 more
Source: ClinicalTrials.gov public record
Updated Jun 1, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Phase 2 Interventional Results available

A Clinical Study to Assess the Safety and Efficacy of an Ophthalmic Solution (SkQ1) in the Treatment of Dry Eye Syndrome (DES)

NCT02121301
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Low Dose 0.155µg/mL SkQ1 ophthalmic solution, High Dose 1.55µg/mL SkQ1 ophthalmic solution, Placebo (Vehicle) opthalmic solution
Drug
Lead sponsor
Mitotech, SA
Industry
Eligibility
18 Years and older
Enrollment
91 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014
U.S. locations
1
States / cities
Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 2, 2020 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional

iMETX (Individualized Metabolic RX): a Pilot Study

NCT03158519
View directory record Official record
Conditions
Breast Cancer
Interventions
iMETX intervention
Behavioral
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
4
States / cities
Carmel, Indiana • Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Oct 31, 2026, 4:29 AM EDT
Completed No phase listed Observational

Lupus Nephritis: Role of Environmental and Occupational Exposures

NCT00342329
View directory record Official record
Conditions
Lupus Nephritis
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
Not listed
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2007
U.S. locations
2
States / cities
Chapel Hill, North Carolina • Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional Results available

The SOLVE-IT National Randomized Trial

NCT00653991
View directory record Official record
Conditions
HIV Infections
Interventions
SOLVE-IT
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
18 Years to 24 Years · Male only
Enrollment
2,020 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2019 · Synced Oct 31, 2026, 4:29 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Childhood Activities Nutrition and Development Oversight

NCT05258656
View directory record Official record
Conditions
Environmental Exposure
Interventions
Intervention, Control
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
Up to 26 Weeks
Enrollment
1,800 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
2
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated May 26, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Sustaining Smoking Cessation in Smokers With Kids With Asthma

NCT00862368
View directory record Official record
Conditions
Asthma, Smoking Cessation
Interventions
PAM, PAM-Enhanced/Asthma Counseling Phone Calls, Follow-Up Phone Calls - Child Wellness Topic
Behavioral
Lead sponsor
The Miriam Hospital
Other
Eligibility
18 Years and older
Enrollment
573 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2011
U.S. locations
5
States / cities
Fall River, Massachusetts • Pawtucket, Rhode Island • Providence, Rhode Island + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 25, 2012 · Synced Oct 31, 2026, 4:29 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Stand Up Kansas: An Intervention to Reduce Sedentary Behavior in the Home Work Environment

NCT04641689
View directory record Official record
Conditions
Sedentary Behavior, Behavior, Health, Cholesterolemia, Obesity, Stress, Hypertension, Fatigue, Glucose, High Blood, Mood
Interventions
Desk Only, Program Only
Device · Behavioral
Lead sponsor
Kansas State University
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Manhattan, Kansas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Oct 31, 2026, 4:29 AM EDT
Completed No phase listed Observational

Environmental Health Effects on Your Physiology

NCT03986814
View directory record Official record
Conditions
Obesity
Interventions
Not listed
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 25 Years
Enrollment
92 participants
Timeline
2019 – 2022
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Oct 31, 2026, 4:29 AM EDT
Not yet recruiting Phase 3 Interventional

Effectiveness of Medical and Environmental Interventions to Reduce Cystoscopy Discomfort (CystoDiscomfort)

NCT07795255
View directory record Official record
Conditions
Bladder (Urothelial, Transitional Cell) Cancer, Hematuria
Interventions
Headphones, Dwell time 5-10 minutes, Dwell Time more than 10 minutes
Device · Drug
Lead sponsor
Florian Schroeck
Federal
Eligibility
18 Years and older
Enrollment
1,740 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
5
States / cities
Birmingham, Alabama • Chapel Hill, North Carolina • Wilmington, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 1, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Terminated Not applicable Interventional Results available

Investigational Study of the Ekso for High-Dosage Use by Individuals With SCI in a Non-Clinical Environment

NCT02566850
View directory record Official record
Conditions
Spinal Cord Injuries
Interventions
Ekso
Device
Lead sponsor
Ekso Bionics
Industry
Eligibility
18 Years to 65 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Richmond, California
Source: ClinicalTrials.gov public record
Updated Sep 28, 2023 · Synced Oct 31, 2026, 4:29 AM EDT
Enrolling by invitation No phase listed Observational Accepts healthy volunteers

Natural History Study of Early Life Exposures in Agriculture (ELEA)

NCT07328516
View directory record Official record
Conditions
Prostate Cancer, Leukemia, Breast Cancer, Melanoma, Colorectal Cancer
Interventions
Not listed
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
64,277 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 30, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Gulf War Illness (GWI) by Comparing GWI and Healthy Veterans

NCT00810225
View directory record Official record
Conditions
Gulf War Illness, Persian Gulf War Syndrome
Interventions
Not listed
Lead sponsor
Georgetown University
Other
Eligibility
Not listed
Enrollment
516 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2011
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jun 18, 2018 · Synced Oct 31, 2026, 4:29 AM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Immersive VR Environments to Induce and Evaluate Cognitive Fatigability

NCT04883359
View directory record Official record
Conditions
Cognitive Fatigue
Interventions
Not listed
Lead sponsor
National Institute of Nursing Research (NINR)
NIH
Eligibility
18 Years to 75 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2023 · Synced Oct 31, 2026, 4:29 AM EDT
Active, not recruiting Phase 3 Interventional

Dry Mouth Toothpaste Study - Comparing Two Toothpastes With Arginine

NCT06365047
View directory record Official record
Conditions
Xerostomia
Interventions
8% Arginine toothpaste, 1000 ppm F toothpaste
Device · Drug
Lead sponsor
Tufts University
Other
Eligibility
18 Years to 80 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2028
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 10, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving High School Breakfast Environments

NCT02004977
View directory record Official record
Conditions
Obesity
Interventions
Improve access to the school breakfast program
Behavioral
Lead sponsor
University of Minnesota
Other
Eligibility
Not listed
Enrollment
904 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Jan 23, 2018 · Synced Oct 31, 2026, 4:29 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Environmental Exposure and Neurological Diseases Questionnaire

NCT02916966
View directory record Official record
Conditions
Amyotrophic Lateral Sclerosis
Interventions
Patient Registry
Other
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
18 Years to 80 Years
Enrollment
460 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2023
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 1, 2024 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional

The IGNITE for Kids Study on Concentrated Investment in Black Neighborhoods and Child Health and Well-Being

NCT05760001
View directory record Official record
Conditions
Financial Stress, Economic Problems, Environmental Exposure, Health Behavior, Health, Subjective, Mental Health Wellness
Interventions
Assigned Interventions
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
3 Years to 19 Years
Enrollment
221 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Phase 2 Interventional Results available

Safety and Efficacy of BRM421 for Dry Eye Syndrome

NCT03066219
View directory record Official record
Conditions
Dry Eye Syndrome
Interventions
BRM421, Placebo
Drug
Lead sponsor
BRIM Biotechnology Inc.
Industry
Eligibility
18 Years and older
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
2
States / cities
Lewiston, Maine • Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 1, 2026 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Care of Persons With Dementia in Their Environments (COPE) in Programs of All-Inclusive Care of the Elderly (PACE)

NCT04165213
View directory record Official record
Conditions
Frontotemporal Dementia, Dementia, Multi-Infarct Dementia, Vascular Dementia, Mixed Dementia, Alzheimer Disease, Lewy Body Disease, Pick Disease, Neurocognitive Disorders
Interventions
Care of Older Persons in their Environment (COPE) online module training
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 100 Years
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 26, 2025 · Synced Oct 31, 2026, 4:29 AM EDT
Completed No phase listed Observational

Potential Nosocomial Infection Prevention Via Modification of Anesthesia Intraoperative Aseptic Practice

NCT00617006
View directory record Official record
Conditions
Nosocomial Infections
Interventions
Not listed
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
Not listed
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Feb 15, 2008 · Synced Oct 31, 2026, 4:29 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reducing Disability Via a Bundled Bio-Behavioral-Environmental Approach

NCT01576133
View directory record Official record
Conditions
Quality of Life
Interventions
CAPABLE, Attention visits
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
65 Years and older
Enrollment
300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 2, 2018 · Synced Oct 31, 2026, 4:29 AM 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 12, 2026 · Synced Oct 31, 2026, 4:29 AM EDT