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ClinicalTrials.gov public records Last synced Sep 6, 2026, 11:58 PM EDT

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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Natural Environment Clear all
Completed No phase listed Observational

The Effects of Chronic Exposure to Low-Level Blasts

NCT01524822
View directory record Official record
Conditions
Tramatic Brain Injury
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 60 Years
Enrollment
66 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 16, 2023 · Synced Sep 6, 2026, 11:58 PM 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 30, 2020 · Synced Sep 6, 2026, 11:58 PM EDT
Recruiting Not applicable Interventional

Complex Rehabilitation Technology Enabled Physical Activity for Children With Motor Delays Via Telehealth in Natural Environments

NCT07252713
View directory record Official record
Conditions
Cerebral Palsy (CP), Motor Disability, Motor Delay
Interventions
Stander Use
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
1 Year to 6 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated May 6, 2026 · Synced Sep 6, 2026, 11:58 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 Aug 30, 2026 · Synced Sep 6, 2026, 11:58 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Comparison of the Natural Frequencies Technology Sleep Patches to Sham Patches During Sleep in the Home Environment

NCT03205631
View directory record Official record
Conditions
Sleep Disturbance
Interventions
Natural Frequency Patch
Other
Lead sponsor
IC-IT Sciences Inc.
Industry
Eligibility
30 Years to 65 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Alameda, California
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 6, 2026, 11:58 PM 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 15, 2023 · Synced Sep 6, 2026, 11:58 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 Sep 3, 2026 · Synced Sep 6, 2026, 11:58 PM 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 Mar 31, 2019 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Devaluing Foods to Change Eating Behavior

NCT03557710
View directory record Official record
Conditions
Overweight and Obesity, Cancer
Interventions
Devaluing energy-dense foods for cancer-control
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 60 Years
Enrollment
253 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2023
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Aug 13, 2023 · Synced Sep 6, 2026, 11:58 PM EDT
Completed No phase listed Observational

Study to Explore Natural Daily Variation and Impact of Stress in HIV Levels

NCT02895087
View directory record Official record
Conditions
HIV
Interventions
Diurnal Variation Group, External Stress Group
Other
Lead sponsor
University of Melbourne
Other
Eligibility
25 Years to 55 Years · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
2
States / cities
San Francisco, California • Milwaukee, Wisconsin
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 6, 2026, 11:58 PM EDT
Not yet recruiting Not applicable Interventional

Stroke Training to Advance Balance During Locomotor Experiences (STABLE) Trial

NCT07802470
View directory record Official record
Conditions
Stroke
Interventions
High intensity gait training in Movement Amplification Environment, High intensity gait training in natural environment
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Body Cooling in Hyperthermic Males and Females

NCT04190264
View directory record Official record
Conditions
Cryotherapy Effect
Interventions
Thermal Rehabilitation Machine, Cold Water Immersion
Device · Other
Lead sponsor
University of North Carolina, Greensboro
Other
Eligibility
18 Years to 35 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Greensboro, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 7, 2020 · Synced Sep 6, 2026, 11:58 PM EDT
Recruiting Not applicable Interventional

Evaluating the Acceptability, Feasibility and Usability of Various Conversational Data Collection Software

NCT07336537
View directory record Official record
Conditions
Chronic Pain, Mental Health Disorders, Behavioral Health Challenges, Ecological Momentary Assessment Best Practices
Interventions
Digital Biopsychosocial Conversational Data Collection Software, Standard Digital Questionnaire Data Collection
Other
Lead sponsor
AugMend Health Inc.
Industry
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 12, 2026 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Results available

Cell Phone Support to Promote Medication Adherence Among Adolescents and Young Adults With Chronic Illness

NCT04241627
View directory record Official record
Conditions
Medication Adherence
Interventions
Cell Phone Support
Behavioral
Lead sponsor
Children's Hospital Los Angeles
Other
Eligibility
15 Years to 21 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 7, 2024 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Intervention for Visceral Adiposity

NCT01350518
View directory record Official record
Conditions
Obesity
Interventions
Benefiber, TrueLemon
Dietary Supplement
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
20 Years to 50 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 6, 2026, 11:58 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

Natural History of Shoulder Pathology in Manual Wheelchair Users

NCT02600910
View directory record Official record
Conditions
Paraplegia, Spinal Cord Injuries, Shoulder Pain, Tendinopathy
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 70 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2026
U.S. locations
2
States / cities
Rochester, Minnesota • Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Sep 6, 2026, 11:58 PM EDT
Completed No phase listed Observational

Effect of Controlled Adverse Environment (CAE) on Tear Film Stability

NCT01547936
View directory record Official record
Conditions
Keratoconjunctivitis Sicca
Interventions
Not listed
Lead sponsor
ORA, Inc.
Industry
Eligibility
18 Years and older
Enrollment
33 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012
U.S. locations
1
States / cities
Andover, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 7, 2012 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional

CBTI-CS: A Novel Cognitive-Behavioral Treatment for Insomnia in Cancer Survivors

NCT02756390
View directory record Official record
Conditions
Insomnia
Interventions
CBTI-CS, Sleep Hygiene, CBTI-CS via Telehealth
Behavioral
Lead sponsor
Dana-Farber Cancer Institute
Other
Eligibility
18 Years and older
Enrollment
56 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 10, 2018 · Synced Sep 6, 2026, 11:58 PM EDT
Terminated Not applicable Interventional Results available

Comparative Efficacy of Self-directed & Therapist-assisted Telehealth Parent Training Intervention for Children With ASD

NCT02721381
View directory record Official record
Conditions
Autism Spectrum Disorder
Interventions
ImPACT Online
Behavioral
Lead sponsor
Michigan State University
Other
Eligibility
18 Months to 65 Years
Enrollment
130 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
1
States / cities
East Lansing, Michigan
Source: ClinicalTrials.gov public record
Updated Feb 6, 2025 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Results available

Comparing Synthetic Hybrid-Scale Fiber Matrix With Standard of Care in Treating Diabetic Foot Ulcers

NCT04918784
View directory record Official record
Conditions
Diabetic Foot Ulcer
Interventions
Restrata®, Wound Dressing
Device
Lead sponsor
Acera Surgical, Inc.
Industry
Eligibility
18 Years and older
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
Hoffman Estates, Illinois
Source: ClinicalTrials.gov public record
Updated Sep 27, 2023 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Cannabidiol Effects on Blood Alcohol Level and Intoxication

NCT06105138
View directory record Official record
Conditions
Alcohol Use Disorder
Interventions
200mg Cannabidiol oral solution, 30mg Cannabidiol oral solution, Placebo
Dietary Supplement
Lead sponsor
Colorado State University
Other
Eligibility
21 Years to 60 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Oct 22, 2024 · Synced Sep 6, 2026, 11:58 PM EDT
Not yet recruiting Not applicable Interventional

Nature as Medicine for the Healing Brain: Utilization of a Nature-based Exposure Intervention for Decreasing Concussion Recovery Timeline and Symptom Load

NCT07642739
View directory record Official record
Conditions
Concussion (Diagnosis)
Interventions
Nature-based Guided Awareness Group, Standard Guided Awareness Group
Behavioral
Lead sponsor
Penn State University
Other
Eligibility
14 Years to 35 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Engaging Motivation for the Prevention of Weight Regain

NCT01169428
View directory record Official record
Conditions
Obesity
Interventions
Mindfulness Based Weight Loss Maintenance (MBWLM), Behavioral: Standard Behavioral Weight-Loss Maintenence
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years and older
Enrollment
95 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
2
States / cities
Durham, North Carolina • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 13, 2013 · Synced Sep 6, 2026, 11:58 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Temporal, Environmental, and Genetic Factors Regulating Exercise and Migraine

NCT04553445
View directory record Official record
Conditions
Migraine Disorders
Interventions
Chronotype, Green exercise
Behavioral
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 27, 2022 · Synced Sep 6, 2026, 11:58 PM EDT