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Showing 1–24 of 813 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Perceptions Clear all
Withdrawn No phase listed Observational Accepts healthy volunteers

Online Surveys to Assess the Perception and Performance of Imaging and Associated Aspects

NCT03494335
View directory record Official record
Conditions
Perception of Imaging
Interventions
Online surveys
Other
Lead sponsor
University of Cincinnati
Other
Eligibility
18 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Sep 5, 2026, 10:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Online Program for Young Adult Veteran Drinkers

NCT02187887
View directory record Official record
Conditions
AOD Misuse, AOD Associated Consequences
Interventions
Personalized normative feedback
Behavioral
Lead sponsor
RAND
Other
Eligibility
18 Years to 34 Years
Enrollment
793 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Santa Monica, California
Source: ClinicalTrials.gov public record
Updated Mar 25, 2025 · Synced Sep 5, 2026, 10:35 PM EDT
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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Recruiting No phase listed Observational

Firearm Safety Survey

NCT07155083
View directory record Official record
Conditions
Firearm Ownership
Interventions
Survey using a questionnaire.
Other
Lead sponsor
Vanessa Ng
Other
Eligibility
Not listed
Enrollment
1,000 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 2, 2025 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Completed No phase listed Observational

Perceptions of Cell and Gene Therapies (CGT) for the Treatment of Cancer

NCT03336567
View directory record Official record
Conditions
Neoplasms
Interventions
Telephonic interview
Other
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
1
States / cities
Collegeville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2019 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Project HOPEFUL: A PN-RCT With Implementation Science

NCT07475039
View directory record Official record
Conditions
Older Adults (50-90 Years), Mental Health, Depression and Suicide Ideation, Social Functioning, Quality of Life, Thwarted Belongingness, Perceived Burdensomeness
Interventions
Standardized and manualized warm calls from providers trained in the BE training, Standardized and manualized warm calls from providers trained in the BE training + ASIST training
Behavioral
Lead sponsor
University of Florida
Other
Eligibility
55 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Mar 15, 2026 · Synced Sep 5, 2026, 10:35 PM EDT
Enrolling by invitation Not applicable Interventional

Dynamic Neural Mechanisms of Audiovisual Speech Perception

NCT04290130
View directory record Official record
Conditions
Speech Perception
Interventions
Measurement of brain activity using electrodes.
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Completed Not applicable Interventional

Patient Perception of Physician's Compassion, Communication Skills, and Professionalism During an Outpatient Palliative Care Visit

NCT02957565
View directory record Official record
Conditions
Malignant Neoplasms of Independent (Primary) Multiple Sites, Advanced Cancer
Interventions
Baseline Questionnaires, Videos, Assessment Questionnaires
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
121 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 24, 2020 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Completed Phase 4 Interventional Results available

Buffered Lidocaine in the Pediatric Dental Patient

NCT04055116
View directory record Official record
Conditions
Pediatric Dentistry
Interventions
Buffered Lidocaine
Drug
Lead sponsor
Geisinger Clinic
Other
Eligibility
4 Years to 17 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2022
U.S. locations
1
States / cities
Danville, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 6, 2023 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

Surgical Weight Loss and Alcohol Perception

NCT04299373
View directory record Official record
Conditions
Bariatric Surgery Candidate
Interventions
Alcohol: Oral administration, Alcohol: Intravenous administration
Drug
Lead sponsor
University of Missouri-Columbia
Other
Eligibility
30 Years to 55 Years · Female only
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
Columbia, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 1, 2024 · Synced Sep 5, 2026, 10:35 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Intranasal Neuropeptide on Emotion Perception in Trait Anxiety

NCT01551303
View directory record Official record
Conditions
Social Intelligence
Interventions
Oxytocin, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 29, 2014 · Synced Sep 5, 2026, 10:35 PM 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 5, 2026, 10:35 PM EDT
Completed Not applicable Interventional Results available

Chest Pain Perception and Capsaicin Sensitivity

NCT02346903
View directory record Official record
Conditions
Chest Pain
Interventions
Capsaicin
Drug
Lead sponsor
Bassett Healthcare
Other
Eligibility
18 Years and older
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Cooperstown, New York
Source: ClinicalTrials.gov public record
Updated Mar 3, 2021 · Synced Sep 5, 2026, 10:35 PM EDT