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ClinicalTrials.gov public records Last synced Oct 30, 2026, 7:14 PM EDT

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Showing 337–360 of 823 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Environment Clear all
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Assessing the Endometrial Environment in Recurrent Pregnancy Loss and Unexplained Infertility

NCT03401918
View directory record Official record
Conditions
Recurrent Pregnancy Loss, Unexplained Infertility
Interventions
Uterine ERA and microbiome testing, Oral antibiotics and vaginal probiotics
Diagnostic Test · Drug
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
41 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Sunnyvale, California
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

GeoScan and Remote Geo Smoking Study: Neural and Behavioral Correlates of Smokers' Exposure to Retail Environments

NCT04279483
View directory record Official record
Conditions
Smoking, Tobacco, Smoking, Smoking, Cigarette
Interventions
Tobacco retailer, Non-tobacco retailer
Behavioral
Lead sponsor
Abramson Cancer Center at Penn Medicine
Other
Eligibility
21 Years to 65 Years
Enrollment
343 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 14, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dismantling the U.S. Social Norm of the "Kids' Food" Archetype (REACH Project)

NCT06266533
View directory record Official record
Conditions
Food Selection, Environmental Exposure
Interventions
Conventional Ultra-processed Food Nutrition Education, Arts-based Ultra-processed Food Nutrition Education
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 85 Years · Female only
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Newark, New Jersey
Source: ClinicalTrials.gov public record
Updated Jul 24, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Recruiting Not applicable Interventional

Project Safe Guard-Trauma

NCT06876740
View directory record Official record
Conditions
PTSD, Firearm Injury, Suicide Prevention, Firearm Safety
Interventions
Project Safe Guard - Trauma, Project Safe Guard
Behavioral
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years and older
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 20, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Nutrition and Body Composition in Acute Lymphoblastic Leukemia

NCT01317940
View directory record Official record
Conditions
Precursor Cell Lymphoblastic Leukemia-Lymphoma, Vitamin D Deficiency
Interventions
Vitamin D and Calcium Citrate
Dietary Supplement
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
10 Years to 29 Years
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jul 8, 2020 · Synced Oct 30, 2026, 7:14 PM EDT
Not yet recruiting No phase listed Observational

A Natural History of Genetic and Environmental Predictors of Pubertal Timing Among Youth With Obesity

NCT07437976
View directory record Official record
Conditions
Obesity
Interventions
Weight loss intervention, No Weight loss intervention
Behavioral
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
5 Years to 12 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2036
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 30, 2026 · Synced Oct 30, 2026, 7:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Improving Nutrition and Physical Activity Environments in Home-based Child Care

NCT02452645
View directory record Official record
Conditions
Family Child Care Homes
Interventions
Healthy Food and Physical Activity Environments, Comparison Group
Behavioral
Lead sponsor
Brown University
Other
Eligibility
18 Years and older
Enrollment
132 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Jul 19, 2017 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Preliminary Test of Reactive Carrot Incentives in a Practice Quit Environment With Contingency Management Incentives

NCT05072301
View directory record Official record
Conditions
Smoking Cessation
Interventions
Contingency Management, Control
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
87 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Sep 1, 2023 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Addressing Obesity in Early Care and Education Settings

NCT04140032
View directory record Official record
Conditions
Obesity
Interventions
Multi-level preschool obesity control intervention
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
30 Months and older
Enrollment
1,136 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 12, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Children's Respiratory and Environmental Workgroup

NCT03213184
View directory record Official record
Conditions
Asthma, Allergic Asthma, Allergies, Healthy
Interventions
Not listed
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
Not listed
Enrollment
142 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
10
States / cities
Baltimore, Maryland • Boston, Massachusetts • Detroit, Michigan + 6 more
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Encouraging Healthy and Sustainable Dietary Substitutions

NCT06175026
View directory record Official record
Conditions
Food Selection
Interventions
Health messages, Environmental messages, Health and environmental messages, Neutral messages
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
18 Years to 25 Years
Enrollment
1,753 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Nov 12, 2024 · Synced Oct 30, 2026, 7:14 PM EDT
Withdrawn Phase 1 Interventional

Effect of Music on Patients in Intensive Care Units

NCT00823017
View directory record Official record
Conditions
Intensive Care Unit
Interventions
Patient-preferred music, Relaxation Music, Standard Care Environment
Other
Lead sponsor
MetroHealth Medical Center
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated May 18, 2018 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Studying Genes, Environment, and Prostate Cancer Risk in Patients With or Without Prostate Cancer

NCT01013129
View directory record Official record
Conditions
Hereditary Prostate Cancer, Prostate Cancer
Interventions
DNA analysis, polymorphism analysis, laboratory biomarker analysis, medical chart review, questionnaire administration, evaluation of cancer risk factors, study of high risk factors
Genetic · Other · Procedure
Lead sponsor
Portland VA Medical Center
Federal
Eligibility
21 Years to 120 Years · Male only
Enrollment
748 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Nov 11, 2021 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

TEDDY - The Environmental Determinants of Diabetes in the Young

NCT00279318
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
0 Months to 4 Months
Enrollment
8,667 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2025
U.S. locations
4
States / cities
Denver, Colorado • Gainesville, Florida • Augusta, Georgia + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2025 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Assessing PFAS Exposure for Better Health

NCT07391397
View directory record Official record
Conditions
Environmental Health Effects
Interventions
Blood Test and Report Back
Behavioral
Lead sponsor
Million Marker Wellness, Inc.
Industry
Eligibility
18 Years and older
Enrollment
183 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated May 18, 2026 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional

Using Immersive Virtual Reality to Treat Pediatric Anxiety

NCT04504773
View directory record Official record
Conditions
Specific Phobia, Specific Phobia, Situational, Specific Phobia, Animal, Specific Phobia, Natural Environment, Childhood Anxiety Disorder
Interventions
Virtual Reality Exposure Therapy
Behavioral
Lead sponsor
Johns Hopkins University
Other
Eligibility
8 Years to 17 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 30, 2026, 7:14 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Natural History of the Human Biological Response to Environmental Exposure and Injury

NCT04888923
View directory record Official record
Conditions
Inflammation, Normal Controls, Metabolic Disease
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 90 Years
Enrollment
2,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2031
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 29, 2026 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Phase 3 Interventional

Safety and Efficacy Study of EGP-437 (Dexamethasone Phosphate Formulated for Ocular Iontophoresis) to Treat Dry Eye

NCT01129856
View directory record Official record
Conditions
Dry Eye
Interventions
Dexamethasone phosphate ophthalmic solution, Sodium citrate buffer solution
Drug
Lead sponsor
Eyegate Pharmaceuticals, Inc.
Industry
Eligibility
12 Years and older
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
5
States / cities
Waterbury, Connecticut • Lewiston, Maine • Andover, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Apr 27, 2011 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Examining the Effects of Reduced Environmental Stimulation on Anxiety

NCT03051074
View directory record Official record
Conditions
Generalized Anxiety Disorder, Agoraphobia, Panic Disorder, PostTraumatic Stress Disorder, Social Anxiety Disorder, Major Depressive Disorder
Interventions
Floating, Comparison
Behavioral
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 55 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 6, 2023 · Synced Oct 30, 2026, 7:14 PM EDT
Recruiting Early Phase 1 Interventional Accepts healthy volunteers

Identification of Critical Thermal Environments for Aged Adults

NCT04284397
View directory record Official record
Conditions
Aging
Interventions
Low dose ASA, Control
Drug · Other
Lead sponsor
Penn State University
Other
Eligibility
18 Years and older
Enrollment
190 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2027
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational

Asthma Severity in Children and Environmental Agents

NCT00042705
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
5 Years to 11 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2012
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 14, 2015 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Lung Mucus Hypersecretion and NQO1

NCT00729352
View directory record Official record
Conditions
Environmental Exposure, Ozone, Air Pollution, Genetic Susceptibility
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 35 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 29, 2014 · Synced Oct 30, 2026, 7:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluation of Home Based Assessments on Participants With DMD

NCT05657938
View directory record Official record
Conditions
Duchenne Muscular Dystrophy
Interventions
Wearable Device, Duchenne Video Assessment (DVA)
Device · Other
Lead sponsor
Solid Biosciences Inc.
Industry
Eligibility
4 Years to 12 Years · Male only
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Charlestown, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 14, 2023 · Synced Oct 30, 2026, 7:14 PM EDT
Completed Not applicable Interventional

The Effect of White Noise In High Noise Environment

NCT02647138
View directory record Official record
Conditions
Insomnia
Interventions
white noise
Other
Lead sponsor
Weill Medical College of Cornell University
Other
Eligibility
18 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 17, 2019 · Synced Oct 30, 2026, 7:14 PM EDT