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ClinicalTrials.gov public records Last synced Oct 30, 2026, 7:49 AM EDT

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Showing 49–72 of 823 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Environment Clear all
Recruiting No phase listed Observational

Longitudinal Impact of Stressors in Adults With Tourette Syndrome

NCT04851678
View directory record Official record
Conditions
Tourette Syndrome
Interventions
None - observational study
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years and older
Enrollment
140 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Oct 30, 2026, 7:49 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Changes in the Bladder Micro-environment Following Midurethral Sling Surgery for Stress Urinary Incontinence

NCT03942549
View directory record Official record
Conditions
Stress Urinary Incontinence
Interventions
Retropubic midurethral sling
Device
Lead sponsor
Oregon Health and Science University
Other
Eligibility
18 Years to 89 Years · Female only
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
2
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Sep 16, 2020 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional Results available

Evaluation of Dry Eye Symptoms in CAE With Application of Intranasal Neurostimulation

NCT02910713
View directory record Official record
Conditions
Dry Eye Syndromes
Interventions
Intranasal Tear Neurostimulator
Device
Lead sponsor
Allergan
Industry
Eligibility
22 Years and older
Enrollment
185 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016
U.S. locations
3
States / cities
Louisville, Kentucky • Memphis, Tennessee • Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 31, 2020 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Environmental Strategies & Behavior Change to Reduce Overeating in Obese Children

NCT01221220
View directory record Official record
Conditions
Obesity
Interventions
Standard Packard Pediatric Weight Control Program, Standard Packard Pediatric Weight Control Program plus Home-based advising on environmental changes
Behavioral
Lead sponsor
Stanford University
Other
Eligibility
8 Years to 15 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2014
U.S. locations
1
States / cities
Stanford, California
Source: ClinicalTrials.gov public record
Updated May 7, 2021 · Synced Oct 30, 2026, 7:49 AM EDT
Completed No phase listed Observational

Identifying Shared Genetic Susceptibility Regions in Chronic Beryllium Disease and Sarcoidosis

NCT00560989
View directory record Official record
Conditions
Sarcoidosis, Berylliosis
Interventions
Not listed
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Sep 26, 2014 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Phase 4 Interventional Results available

Impact of Oral Antibiotic Treatment on C. Difficile

NCT02057198
View directory record Official record
Conditions
C. Difficile, Diarrhea, Enterocolitis
Interventions
Fidaxomicin, Metronidazole, Vancomycin
Drug
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 2, 2019 · Synced Oct 30, 2026, 7:49 AM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Assessing and Addressing Community Exposures to Environmental Contaminants

NCT06315140
View directory record Official record
Conditions
Environmental Exposure
Interventions
Nutrition
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 80 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jan 29, 2026 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional

Nature as a Buffer Among People With Chronic Pain

NCT03153891
View directory record Official record
Conditions
Chronic Pain
Interventions
Natural Environment, Built Environment
Other
Lead sponsor
Cornell University
Other
Eligibility
60 Years to 90 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Ithaca, New York
Source: ClinicalTrials.gov public record
Updated Apr 1, 2019 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Population-Based Patient-Centric Care: Comprehensive Preventive Cancer Screening Using Health IT

NCT01372527
View directory record Official record
Conditions
Breast Cancer, Colorectal Cancer, Cervical Cancer
Interventions
TopCare: Use of provider knowledge vs. automated system
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
21 Years to 75 Years
Enrollment
103,870 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 3, 2014 · Synced Oct 30, 2026, 7:49 AM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Fruit and Vegetable Study - Pilot

NCT07727746
View directory record Official record
Conditions
Fruit and Vegetable Consumption in Children, Fruit and Vegetable Consumption, Fruit and Vegetable Selection in the Lunchroom, Caregiver Nutrition
Interventions
FFVP+, FFVP-only
Behavioral
Lead sponsor
Arizona State University
Other
Eligibility
7 Years to 65 Years
Enrollment
880 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Oct 30, 2026, 7:49 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 30, 2026, 7:49 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Environment and Alcohol: A Pilot Study

NCT06860607
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
Evaluate the effects of Environmental Enrichment (EE) on alcohol consumption
Behavioral
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 100 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2028
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 29, 2026 · Synced Oct 30, 2026, 7:49 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Sex Hormones on Circadian Rhythm in Men and Women

NCT00001285
View directory record Official record
Conditions
Bipolar Disorder, Circadian Rhythm, Depressive Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Female only
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1991 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 4, 2008 · Synced Oct 30, 2026, 7:49 AM EDT
Recruiting Not applicable Interventional

Sensory Optimization of the Hospital Environment

NCT05230199
View directory record Official record
Conditions
Preterm, Parent-Child Relations, Parents, Development, Infant, Sensory Integration Dysfunction
Interventions
SENSE multisensory program, Monitored standard of care
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
1 Day to 7 Days
Enrollment
215 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2028
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 17, 2026 · Synced Oct 30, 2026, 7:49 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Environmental and Reproductive Health Risk for Lewy Body Dementia

NCT06005935
View directory record Official record
Conditions
Lewy Body Dementia, Parkinson Disease Dementia, Dementia With Lewy Bodies
Interventions
Survey
Other
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
La Jolla, California
Source: ClinicalTrials.gov public record
Updated Jul 3, 2024 · Synced Oct 30, 2026, 7:49 AM 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, 7:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Improving Sleep Using Mentored Behavioral and Environmental Restructuring

NCT03327324
View directory record Official record
Conditions
Insomnia
Interventions
Sleep Using Mentored Behavioral and Environmental Restructuring
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 8, 2023 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Virtual Reality Study - COVID-19 Protocol

NCT04678778
View directory record Official record
Conditions
Healthy Aging
Interventions
Physical and Cognitive Activity
Behavioral
Lead sponsor
University of Southern California
Other
Eligibility
50 Years to 85 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 29, 2021 · Synced Oct 30, 2026, 7:49 AM EDT
Completed No phase listed Observational

An Observational Study of Childhood Food Allergy

NCT00356174
View directory record Official record
Conditions
Food Hypersensitivity, Peanut Hypersensitivity, Egg Hypersensitivity, Milk Hypersensitivity
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
3 Months to 15 Months
Enrollment
515 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2016
U.S. locations
5
States / cities
Little Rock, Arkansas • Denver, Colorado • Baltimore, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 28, 2016 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Not applicable Interventional

Improving the Quality of Dementia Care Through Innovative Redesign of the Memory Care Environment

NCT04350060
View directory record Official record
Conditions
Dementia
Interventions
Retro-fitted room with technological enhancements
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
65 Years to 100 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Aug 29, 2025 · Synced Oct 30, 2026, 7:49 AM EDT
Terminated No phase listed Observational

Uganda Birth Cohort Study

NCT04233944
View directory record Official record
Conditions
Birth Outcomes, Stunting, Wasting, Anemia
Interventions
Not listed
Lead sponsor
Tufts University
Other
Eligibility
15 Years to 49 Years · Female only
Enrollment
5,044 participants
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 18, 2020 · Synced Oct 30, 2026, 7:49 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Sleep Improvement Via Environmental Smart Temperature Adjustments

NCT06770400
View directory record Official record
Conditions
Sleep, Environmental Exposure, Environmental Sleep Disorder
Interventions
Temperature Optimized for Sleep, Participant's Preferred Temperature
Other
Lead sponsor
Hebrew SeniorLife
Other
Eligibility
65 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 5, 2025 · Synced Oct 30, 2026, 7:49 AM EDT
Completed Phase 3 Interventional

Safety and Effectiveness of Buprenorphine Transdermal System in Elderly Subjects With Chronic Pain: Pilot Study.

NCT00313833
View directory record Official record
Conditions
Chronic Pain
Interventions
Buprenorphine transdermal delivery system
Drug
Lead sponsor
Purdue Pharma LP
Industry
Eligibility
55 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2000 – 2001
U.S. locations
18
States / cities
Birmingham, Alabama • Phoenix, Arizona • Anaheim, California + 15 more
Source: ClinicalTrials.gov public record
Updated May 3, 2006 · Synced Oct 30, 2026, 7:49 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Environmental and Genetic Risk Factors for Pediatric Multiple Sclerosis

NCT01396343
View directory record Official record
Conditions
Pediatric Multiple Sclerosis
Interventions
Not listed
Lead sponsor
University of California, San Francisco
Other
Eligibility
3 Years to 21 Years
Enrollment
1,276 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2018
U.S. locations
17
States / cities
Birmingham, Alabama • San Bernardino, California • San Francisco, California + 13 more
Source: ClinicalTrials.gov public record
Updated Oct 18, 2018 · Synced Oct 30, 2026, 7:49 AM EDT