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ClinicalTrials.gov public records Last synced Oct 22, 2026, 10:28 AM EDT

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Showing 25–48 of 824 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Perceptions Clear all
Completed No phase listed Observational

Event Related Potentials in Infants and Adults

NCT00088712
View directory record Official record
Conditions
Healthy, Child Development
Interventions
Not listed
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
3 Months to 45 Years
Enrollment
440 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2019 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing an Intervention to Prevent Visceral Adipose Tissue Accumulation

NCT01778712
View directory record Official record
Conditions
Menopause, Visceral Adipose Tissue Accumulation, Abdominal Obesity, Obesity, Overweight
Interventions
Multi-level intervention
Behavioral
Lead sponsor
Rush University Medical Center
Other
Eligibility
42 Years and older · Female only
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2016
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Apr 27, 2016 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Efficacy and Safety of a Nutraceutical Supplement With Standardized Botanicals in Women With Thinning Hair

NCT03206567
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol Supplement capsules, Placebo capsules
Dietary Supplement · Other
Lead sponsor
Ablon Skin Institute Research Center
Other
Eligibility
21 Years to 65 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Manhattan Beach, California
Source: ClinicalTrials.gov public record
Updated Aug 7, 2019 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Local Anesthesia and Pain Perception During an Amniocentesis

NCT00583011
View directory record Official record
Conditions
Pregnancy
Interventions
Local Anesthesia, Placebo Group
Drug
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
76 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Phase 2 Interventional Results available

OHI--Randomized Control Trial to Evaluate Efficacy, Acceptability, and Perception of Benefit of an Innovative Custom AFO

NCT02819011
View directory record Official record
Conditions
Accidental Falls, Fall Due to Loss of Equilibrium, High Risk of Falls Due to Mobility Limitation, Diabetes, Arthritis, Cancer, Peripheral Arterial Disease, Parkinson's Disease, End Stage Renal Failure on Dialysis
Interventions
MBB AFO, Control
Device · Other
Lead sponsor
Bijan Najafi, PhD
Other
Eligibility
65 Years and older
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Feb 27, 2020 · Synced Oct 22, 2026, 10:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Evaluating Color Perception Under LED Red/Green and Green Dominant Light

NCT01927536
View directory record Official record
Conditions
Color Blindness, Acquired
Interventions
White LED Flashlight, Red/Green Green Dominant LED Flashlight
Device
Lead sponsor
University of Colorado, Denver
Other
Eligibility
18 Years to 66 Years
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
Aurora, Colorado
Source: ClinicalTrials.gov public record
Updated May 15, 2019 · Synced Oct 22, 2026, 10:28 AM EDT
Not listed No phase listed Observational Accepts healthy volunteers

Physical Activity in Public Housing - II

NCT00823498
View directory record Official record
Conditions
Cancer
Interventions
Focus Group, Interview, Photovoice Project
Behavioral · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
12 Years and older
Enrollment
84 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2020
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Results available

An Investigation of Functional Improvements in the RHEO KNEE Compared to Hydraulic Microprocessor Controlled Knees (MPKs)

NCT04023578
View directory record Official record
Conditions
Prosthesis User, Amputation
Interventions
RHEO KNEE XC
Device
Lead sponsor
Össur Iceland ehf
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015
U.S. locations
4
States / cities
Orlando, Florida • Flowood, Mississippi • Fort Worth, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Apr 6, 2020 · Synced Oct 22, 2026, 10:28 AM EDT
Recruiting Not applicable Interventional

Hearing Aids for Veterans With Functional Hearing Difficulties

NCT06117254
View directory record Official record
Conditions
Auditory Processing Disorder
Interventions
Communication Counseling, Hearing Aids, Remote Microphones
Behavioral · Device
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 79 Years
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Brief Laboratory-Based Hypnosis Session for Pain in Sickle Cell Disease

NCT02620488
View directory record Official record
Conditions
Sickle Cell Disease
Interventions
Guided Imagery
Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
13 Years and older
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 3, 2017 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Integrative Health Coaching in Community Settings

NCT02186327
View directory record Official record
Conditions
Health Knowledge, Attitudes, Practice
Interventions
Integrative Health Coaching
Behavioral
Lead sponsor
Duke University
Other
Eligibility
5 Years and older
Enrollment
74 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
2
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 23, 2015 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Prenatal Education on Perceptions of Epidural Acceptance

NCT01709591
View directory record Official record
Conditions
Labor Pain
Interventions
Prenatal education
Behavioral
Lead sponsor
Santa Clara Valley Health & Hospital System
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
111 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2018
U.S. locations
1
States / cities
San Jose, California
Source: ClinicalTrials.gov public record
Updated Aug 11, 2020 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Results available

Caring Cards to and From Veterans: A Peer Approach to Suicide Prevention

NCT04486677
View directory record Official record
Conditions
Feasibility, Acceptability, Thwarted Belongingness, Perceived Burdensomeness, Suicide Risk, Social Connectedness
Interventions
Caring Cards Group, Caring Cards Recipients
Behavioral
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated May 2, 2024 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Lidocaine Versus Bupivacaine in Orthognathic Surgery

NCT06450028
View directory record Official record
Conditions
Pain, Postoperative, Numbness, Temperature Sensation, Perception of Touch
Interventions
10 cc of 0.25% bupivacaine hydrochloride with 1:200,000 epinephrine, 6.8 cc of 2% lidocaine hydrochloride with 1:100,000 epinephrine
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
15 Years to 35 Years
Enrollment
64 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 4, 2026 · Synced Oct 22, 2026, 10:28 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Efficacy of Bitter Blockers on Taste Perception in Children and Adults

NCT01407939
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
Monell Chemical Senses Center
Other
Eligibility
3 Years and older
Enrollment
215 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 16, 2016 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Results available

Differentiating the Effects of Substance P and Beta-endorphin

NCT01854177
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease
Interventions
Aprepitant, Placebo
Drug
Lead sponsor
Dartmouth-Hitchcock Medical Center
Other
Eligibility
50 Years to 90 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Lebanon, New Hampshire
Source: ClinicalTrials.gov public record
Updated Oct 30, 2018 · Synced Oct 22, 2026, 10:28 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Studies of Blood Flow to the Brain During Thought

NCT00001360
View directory record Official record
Conditions
Healthy Volunteer
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 65 Years
Enrollment
4,100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1993
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 22, 2026, 10:28 AM EDT
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 18, 2024 · Synced Oct 22, 2026, 10:28 AM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Multisensory Integration and Pain Perception

NCT03471689
View directory record Official record
Conditions
Pain, Regulation, Self
Interventions
Mindfulness meditation, Positive reappraisal
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years to 23 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2019 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Cognitive and Biological Responses in Stress

NCT05026333
View directory record Official record
Conditions
Stress, Psychological, Anxiety
Interventions
Cognitive Stress Testing
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Oct 12, 2022 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Nutraceutical Supplement With Vegan Botanicals in Females With Self-Perceived Thinning Hair

NCT05332743
View directory record Official record
Conditions
Hair Thinning
Interventions
Nutrafol Vegan Women's Hair Supplement
Dietary Supplement
Lead sponsor
Nutraceutical Wellness Inc.
Industry
Eligibility
18 Years to 50 Years · Female only
Enrollment
110 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
2
States / cities
Manhattan Beach, California • Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2023 · Synced Oct 22, 2026, 10:28 AM EDT
Enrolling by invitation Not applicable Interventional

Study Evaluating Xtressé Gummy Supplement in Women With Self-Perceived Thinning Hair

NCT07224555
View directory record Official record
Conditions
Hair Thinning
Interventions
Xtressé Hair Growth Gummies
Other
Lead sponsor
Restore Biologics Holdings, Inc. dba Xtressé
Industry
Eligibility
18 Years to 65 Years · Female only
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
4
States / cities
Maitland, Florida • Alpharetta, Georgia • Marriottsville, Maryland + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 8, 2026 · Synced Oct 22, 2026, 10:28 AM EDT
Completed Not applicable Interventional Results available

Evaluation of Pain Alleviating Strategies During Allergy Shots

NCT04181632
View directory record Official record
Conditions
Immunotherapy, Allergy
Interventions
Buzzy Bee with Ice pack, Buzzy Bee without Ice pack, Shot Blocker
Device
Lead sponsor
Nemours Children's Clinic
Other
Eligibility
4 Years to 17 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Jacksonville, Florida
Source: ClinicalTrials.gov public record
Updated Jun 29, 2023 · Synced Oct 22, 2026, 10:28 AM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Vestibular Precision: Physiology & Pathophysiology

NCT04890132
View directory record Official record
Conditions
Vestibular Schwannoma, Inner Ear Disease, Dizziness, Neurofibromatosis 2, Vestibular Disorder
Interventions
VOR precision training
Behavioral
Lead sponsor
Massachusetts Eye and Ear Infirmary
Other
Eligibility
8 Years to 80 Years
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 16, 2023 · Synced Oct 22, 2026, 10:28 AM EDT