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ClinicalTrials.gov public records Last synced Sep 7, 2026, 11:37 AM EDT

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Showing 1–24 of 452 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Perception Disorders Clear all
Completed No phase listed Observational Accepts healthy volunteers

The Development of Categorization

NCT00001950
View directory record Official record
Conditions
Cognition Disorder, Healthy
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
1 Year to 3 Years
Enrollment
219 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1999 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 12, 2018 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Family Access to Dentist Study

NCT02395120
View directory record Official record
Conditions
Dental Caries
Interventions
Standard letter, Intervention letter, Reduced intervention letter, DIG, Reduced DIG
Behavioral
Lead sponsor
Case Western Reserve University
Other
Eligibility
5 Years to 10 Years
Enrollment
1,305 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
2
States / cities
Cleveland, Ohio • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Jun 15, 2022 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional

Videos and Questionnaires in Assessing Patient Perception of Physician's Compassion, Communication Skills, and Professionalism During Clinic Visits

NCT03856060
View directory record Official record
Conditions
Advanced Malignant Neoplasm, Locally Advanced Malignant Neoplasm, Malignant Neoplasm, Metastatic Malignant Neoplasm, Recurrent Malignant Neoplasm
Interventions
Questionnaire Administration, Video
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
125 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Enhancing Caregiver Empathy by Empowering Patients to Discuss Their Values

NCT05055141
View directory record Official record
Conditions
No Condition is the Focus of the Study
Interventions
Care to Share poster
Other
Lead sponsor
The Cleveland Clinic
Other
Eligibility
18 Years and older
Enrollment
539 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Oct 1, 2023 · Synced Sep 7, 2026, 11:37 AM EDT
Not yet recruiting No phase listed Observational

Assessing the Impact of Perceptions of Unpredictability on Objective Measures of Food Consumption and Metabolism

NCT06690294
View directory record Official record
Conditions
Healthy Volunteer, Obestity
Interventions
Not listed
Lead sponsor
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
NIH
Eligibility
18 Years to 60 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Recruiting No phase listed Observational

Patient Perceptions Around Quality of Care Through Telemedicine in Neuro-Oncology

NCT04988009
View directory record Official record
Conditions
Central Nervous System Neoplasm, Leptomeningeal Neoplasm, Metastatic Malignant Neoplasm in the Brain, Primary Brain Neoplasm
Interventions
Electronic Health Record Review, Survey Administration
Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Mar 4, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Post Operative Analgesia and Patient Satisfaction

NCT04976387
View directory record Official record
Conditions
Postoperative Pain, Patient Satisfaction, Analgesia
Interventions
Not listed
Lead sponsor
Loma Linda University
Other
Eligibility
18 Years to 89 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Mar 29, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Multimodal Assessment of Sensory Processing and Brain Features in Patients With Chronic Orofacial Pain

NCT02630771
View directory record Official record
Conditions
Toothache, Temporomandibular Joint Disorders
Interventions
Pressure pain threshold
Procedure
Lead sponsor
University of Minnesota
Other
Eligibility
18 Years to 65 Years · Female only
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated May 1, 2019 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional

Acceptance and Commitment Therapy Principles for Diabetes Prevention

NCT05260983
View directory record Official record
Conditions
PreDiabetes, Diabetes Mellitus, Type 2, Diabetes, Diabetes type2
Interventions
Diabetes Prevention Education and Acceptance and Commitment Therapy, Diabetes Prevention Education Only
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years and older
Enrollment
301 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional

Effects of Spinal Cord Stimulation on Sensory Perceptions of Chronic Pain Patients

NCT02837822
View directory record Official record
Conditions
Chronic Pain, Complex Regional Pain Syndrome, Failed Back Surgery Syndrome
Interventions
Spinal cord stimulator, Implantation of a spinal cord stimulator
Device · Procedure
Lead sponsor
CHU de Quebec-Universite Laval
Other
Eligibility
18 Years and older
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 16, 2018 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Barre Stretching Among Dental Hygiene Students

NCT06279182
View directory record Official record
Conditions
Musculoskeletal Disorders, Stress Management, Perceived Stress, Reported Stress, Perceived Pain, Reported Pain
Interventions
Barre Stretching Intervention
Behavioral
Lead sponsor
Idaho State University
Other
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Pocatello, Idaho
Source: ClinicalTrials.gov public record
Updated May 7, 2025 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of a Modified Probe Tip Design on Patient Perception of Discomfort on Probing and Clinical Parameters Using the Florida Probe® System

NCT03690479
View directory record Official record
Conditions
Periodontitis, Diagnoses Disease
Interventions
Florida Probe Straight Tip Probe, Ball Tip Probe
Device
Lead sponsor
University of Florida
Other
Eligibility
18 Years and older
Enrollment
21 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2017
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Oct 1, 2018 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Phenotyping IBS: Perceptions and Modulations of Visceral Sensations

NCT02693730
View directory record Official record
Conditions
Irritable Bowel Syndrome, Ulcerative Colitis, Inflammatory Bowel Disease
Interventions
Not listed
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 60 Years
Enrollment
198 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 8, 2023 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational

Wellness and Quality of Life Perceptions of People With Traumatic Brain Injury

NCT04794894
View directory record Official record
Conditions
Brain Injuries, Traumatic
Interventions
outpatient rehabilitation
Behavioral
Lead sponsor
Quality Living, Inc.
Other
Eligibility
19 Years to 70 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jun 24, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Active, not recruiting Not applicable Interventional

Patient Perceptions of the Relational Empathy of Healthcare Practitioners From the Department of Emergency Medicine During the COVID-19 Pandemic

NCT05102656
View directory record Official record
Conditions
COVID-19 Infection, Hematopoietic and Lymphoid Cell Neoplasm, Malignant Solid Neoplasm
Interventions
Best Practice, Discussion, Questionnaire Administration
Other · Procedure
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
107 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 19, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

Investigating the Mechanisms of the Effects of Psilocybin on Visual Perception and Visual Representations in the Brain

NCT05265546
View directory record Official record
Conditions
Perception Disorders
Interventions
Psilocybin
Drug
Lead sponsor
University of California, Berkeley
Other
Eligibility
21 Years and older
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Relationship Between Diet, Lifestyle, and the Severity of Coronary Artery Disease

NCT02382250
View directory record Official record
Conditions
Dietary Habits, Coronary Artery Disease, Lifestyle
Interventions
Survey
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
440 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 7, 2026, 11:37 AM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Mobile App in House Staff Health and Well-being During COVID-19 Pandemic

NCT04374786
View directory record Official record
Conditions
Perceived Stress, Anxiety, Sleep Disturbance, Burnout, PTSD
Interventions
Calm Meditation App
Device
Lead sponsor
University of Arizona
Other
Eligibility
18 Years to 99 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Sep 7, 2026, 11:37 AM EDT
Not listed Phase 1Phase 2 Interventional Accepts healthy volunteers

Behavioral and Physiological Effects of Visual Training

NCT00526942
View directory record Official record
Conditions
Healthy
Interventions
SAAGE-designed, visual memory-based cognitive training
Behavioral
Lead sponsor
Posit Science Corporation
Industry
Eligibility
60 Years and older
Enrollment
54 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
San Francisco Bay Area, California
Source: ClinicalTrials.gov public record
Updated Sep 10, 2007 · Synced Sep 7, 2026, 11:37 AM EDT
Not listed No phase listed Observational

Motion Perception in Individuals With Type 2 Diabetes

NCT03380832
View directory record Official record
Conditions
Diabetes Mellitus, Type 2
Interventions
Not listed
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
18 Years to 80 Years
Enrollment
16 participants
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2018 · Synced Sep 7, 2026, 11:37 AM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

A 6-month, Randomized, Double-blind, Placebo Controlled Study Evaluating the Efficacy and Safety of USPlus DERM to Promote Hair Growth in Men and Women With Self-perceived Thinning Hair.

NCT06920758
View directory record Official record
Conditions
Thinning Hair
Interventions
USPlus DERM Bioactive Fatty Acids 160 mg Softgels, Placebo softgel
Dietary Supplement · Other
Lead sponsor
Ablon Skin Institute Research Center
Other
Eligibility
25 Years to 65 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Manhattan Beach, California
Source: ClinicalTrials.gov public record
Updated Apr 9, 2025 · Synced Sep 7, 2026, 11:37 AM EDT
Completed No phase listed Observational

Hypersensitivity in Tourette Syndrome

NCT00368433
View directory record Official record
Conditions
Tourette's Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
46 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 7, 2026, 11:37 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Sensory Processing Difficulties in Adults and Adolescents

NCT02205658
View directory record Official record
Conditions
Sensory Processing Dysfunction
Interventions
Not listed
Lead sponsor
The Spiral Foundation at OTA Watertown
Other
Eligibility
13 Years to 95 Years
Enrollment
1,300 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Newton, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 30, 2014 · Synced Sep 7, 2026, 11:37 AM EDT
Completed Phase 3 Interventional

Tasimelteon for the Treatment of Non-24-hour Sleep-Wake Disorder (N24HSWD) in Blind Individuals With no Light Perception

NCT01429116
View directory record Official record
Conditions
Non-24-Hour Sleep-Wake Disorder
Interventions
tasimelteon
Drug
Lead sponsor
Vanda Pharmaceuticals
Industry
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2015
U.S. locations
22
States / cities
Phoenix, Arizona • Orange, California • Palo Alto, California + 19 more
Source: ClinicalTrials.gov public record
Updated Apr 20, 2015 · Synced Sep 7, 2026, 11:37 AM EDT