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ClinicalTrials.gov public records Last synced Oct 30, 2026, 1:04 PM EDT

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Showing 169–192 of 823 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Environment Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

"Facemask Use During High-intensity Interval Exercise in Temperate and Hot Environments"

NCT05143801
View directory record Official record
Conditions
Hypoxemia, Physiological Stress
Interventions
High-intensity interval exercise with surgical face mask in a temperate environment, High-intensity interval exercise with surgical face mask in a hot environment, High-intensity interval exercise without using a surgical face mask in a hot environment, High-intensity interval exercise without using a surgical face mask in a temperate environment
Device · Other
Lead sponsor
University of New Mexico
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Albuquerque, New Mexico
Source: ClinicalTrials.gov public record
Updated Apr 25, 2022 · Synced Oct 30, 2026, 1:04 PM EDT
Not yet recruiting Not applicable Interventional

Sperm, Exposure and Endocrine Disruptors

NCT07703046
View directory record Official record
Conditions
Fertility, Male Fertility, Sperm Count, Low, Sperm Quality
Interventions
EDC Education Intervention
Behavioral
Lead sponsor
Million Marker Wellness, Inc.
Industry
Eligibility
18 Years and older · Male only
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Oct 6, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Examining Effects of Active Plant Engagement on College Student Well-Being and Performance

NCT07228013
View directory record Official record
Conditions
Perceived Stress, State Anxiety, Intrinsic Goal Orientation, Study Habits, Mood, Sleep Quality, Connectedness to Nature, Extrinsic Goal Orientation
Interventions
Active Plant Engagement
Behavioral
Lead sponsor
Colorado State University
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Jan 13, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Harmony at Home: A Pilot Telehealth Program for Rural ADRD Caregivers

NCT05202223
View directory record Official record
Conditions
Alzheimer Disease, Dementia, Brain Diseases, Central Nervous System Diseases, Nervous System Diseases, Tauopathies, Neurodegenerative Diseases, Neurocognitive Disorders, Mental Disorders
Interventions
Harmony at HOME (H@H)
Behavioral
Lead sponsor
Elizabeth K Rhodus
Other
Eligibility
21 Years to 99 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Dec 29, 2023 · Synced Oct 30, 2026, 1:04 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

El Sendero: Pathways to Health Study

NCT05551650
View directory record Official record
Conditions
Obesity, Childhood, Child Development
Interventions
Not listed
Lead sponsor
University of Southern California
Other
Eligibility
6 Years to 6 Years
Enrollment
280 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 20, 2024 · Synced Oct 30, 2026, 1:04 PM EDT
Completed No phase listed Observational Results available

Change in Knowledge After Receiving Personal Air Pollution Results

NCT05160948
View directory record Official record
Conditions
Environmental Exposure
Interventions
Informational Report
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
15 Years to 99 Years
Enrollment
105 participants
Timeline
2021 – 2022
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 31, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Not listed No phase listed Observational

Behavioral and Environmental Sensing and Intervention

NCT03297268
View directory record Official record
Conditions
Behavioral and Psychiatric Symptoms of Dementia, Dementia, Caregivers
Interventions
Intervention with Home-Based Caregivers
Other
Lead sponsor
University of Virginia
Other
Eligibility
50 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Sep 29, 2017 · Synced Oct 30, 2026, 1:04 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

The Role of Environmental Temperatures in Respiratory Control

NCT07470086
View directory record Official record
Conditions
Work of Breathing
Interventions
Thermoneutral temperature environment, Cold temperature environment, Hot temperature environment
Other
Lead sponsor
Indiana University
Other
Eligibility
18 Years to 40 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2028 – 2029
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 13, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Nurse Suicide: Physiologic Sleep Health Promotion Trial

NCT06079853
View directory record Official record
Conditions
Suicide, Nurse's Role, Work Environment Adverse Effects, Sleep, Stress, Mental Health Wellness 1
Interventions
PureSomni Sleep Health Product Kit
Behavioral
Lead sponsor
Columbia University
Other
Eligibility
21 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Cortlandt Manor, New York
Source: ClinicalTrials.gov public record
Updated Nov 25, 2024 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Phase 1 Interventional

Vigabatrin Ph 1 Cocaine Interaction Study

NCT00626834
View directory record Official record
Conditions
Cocaine Addiction
Interventions
Vigabatrin, Matching placebo
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 45 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional

Proactive Speech and Language Intervention for Infants With Down Syndrome

NCT06450509
View directory record Official record
Conditions
Down Syndrome
Interventions
Babble Boot Camp
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
0 Months to 12 Months
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Tempe, Arizona
Source: ClinicalTrials.gov public record
Updated Apr 29, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Snoring Intervention Via Elevoplasty in a Non-surgical Clinical Environment

NCT03083106
View directory record Official record
Conditions
Snoring
Interventions
Elevoplasty
Device
Lead sponsor
Zelegent, Inc.
Industry
Eligibility
22 Years and older
Enrollment
52 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
6
States / cities
Orange, California • Chicago, Illinois • Brighton, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Jan 30, 2020 · Synced Oct 30, 2026, 1:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers Results available

Improving Maternal and Child Health Through Prenatal Fatty Acid Supplementation

NCT02647723
View directory record Official record
Conditions
Pregnancy, Child Development
Interventions
DHA, Sugar pill
Dietary Supplement
Lead sponsor
University of Chicago
Other
Eligibility
18 Years to 34 Years · Female only
Enrollment
168 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 17, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Changes in Microbiota in Healthy Subjects Before and After Meditation Practices in a Controlled Environment

NCT06306469
View directory record Official record
Conditions
Healthy
Interventions
Meditation practice
Other
Lead sponsor
Pranic Healing Research Institute
Other
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Lyndhurst, New Jersey
Source: ClinicalTrials.gov public record
Updated Mar 12, 2024 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Adult Providing Access to the Visual Environment (PAVE) - Glaucoma Pilot

NCT00338208
View directory record Official record
Conditions
Glaucoma
Interventions
Training in the Use of Low Vision Devices
Behavioral
Lead sponsor
Vanderbilt University
Other
Eligibility
21 Years and older
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2011
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 20, 2015 · Synced Oct 30, 2026, 1:04 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

HomeGrown: A Family-based Lifestyle Intervention to Support Healthy Development of Young Children With Down Syndrome

NCT07296861
View directory record Official record
Conditions
Down Syndrome, Child Obesity
Interventions
The HomeGrown, Waitlist
Behavioral · Other
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
Not listed
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Using Focus Groups to Assess the Impact of Environmental Health Science Programs for K-12 Educational Community

NCT00428402
View directory record Official record
Conditions
Healthy
Interventions
Focus Group Discussion
Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
Not listed
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2012
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 28, 2012 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional

Whitsundays (Nasal) Mask Take Home Study (90 Days)

NCT06036329
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Group A : provided with 1 Whitsundays Nasal mask without a spare mask cushion, Group B : provided with 1 Whitsundays Nasal mask with 2 spare mask cushions
Device
Lead sponsor
ResMed
Industry
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
2
States / cities
San Diego, California • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 29, 2024 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Exercise With Overdressing

NCT07080853
View directory record Official record
Conditions
Heat Stress, Exertional, Heat Acclimation and Thermotolerance
Interventions
Exercise with Overdressing, Control Exercise
Other
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years to 45 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 24, 2025 · Synced Oct 30, 2026, 1:04 PM EDT
Recruiting Not applicable Interventional

Addressing Tetrachloroethylene Exposure in an Impacted Community

NCT05819996
View directory record Official record
Conditions
Vapors; Inhalation, Cancer, Volatile Organic Compounds
Interventions
Environmental educational campaign
Behavioral
Lead sponsor
Purdue University
Other
Eligibility
18 Years to 99 Years
Enrollment
510 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Mar 18, 2025 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Phase 2 Interventional

Home Stimulation for Brain-Asphyxiated Infants

NCT00006516
View directory record Official record
Conditions
Hypoxia, Brain, Hypoxia-Ischemia, Brain
Interventions
Infant stimulation
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
Up to 1 Month
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 26, 2016 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Results available

Community Participation Transition After Stroke

NCT02396589
View directory record Official record
Conditions
Stroke
Interventions
Education Group, Home Modifications Group
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
45 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 27, 2025 · Synced Oct 30, 2026, 1:04 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

APOL1 Genotyping CTA Clinical Performance Study

NCT06839833
View directory record Official record
Conditions
APOL1-mediated Kidney Disease
Interventions
APOL1 Genotyping
Diagnostic Test
Lead sponsor
Almac Diagnostic Services LLC
Industry
Eligibility
18 Years to 70 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 30, 2026, 1:04 PM EDT
Completed Not applicable Interventional Results available

Environmental Treatment for Seasonal Affective Disorder (SAD)

NCT00139997
View directory record Official record
Conditions
Seasonal Affective Disorder
Interventions
Litebook treatment devices, Inactivated negative ion generator
Device
Lead sponsor
Yale University
Other
Eligibility
18 Years to 65 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2005
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 6, 2013 · Synced Oct 30, 2026, 1:04 PM EDT