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ClinicalTrials.gov public records Last synced Oct 21, 2026, 5:29 PM EDT

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Showing 1–24 of 51 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: Text Warnings Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Reactions to Warnings on Hookah Ads

NCT03723616
View directory record Official record
Conditions
Reactions to Warnings, Hookah Smoking
Interventions
Ads Only, Ads with text-only health warning labels (HWLs), Ads with text + graphic health warning labels (HWLs)
Behavioral
Lead sponsor
Duke University
Other
Eligibility
18 Years to 34 Years
Enrollment
2,588 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 18, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Improving Prescription Drug Warning Labels

NCT00846209
View directory record Official record
Conditions
Enhanced Text, Enhanced Text + Icon
Interventions
Enhanced drug labeling
Other
Lead sponsor
Northwestern University
Other
Eligibility
18 Years and older
Enrollment
500 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Nov 14, 2023 · Synced Oct 21, 2026, 5:29 PM EDT
Recruiting Not applicable Interventional

Preliminary Trial of an Avatar Guided Digital Intervention for Emerging Adults

NCT07418047
View directory record Official record
Conditions
Binge Alcohol Consumption, Suicidal Ideation
Interventions
EA-Avatar, Suicide safety planning app
Behavioral
Lead sponsor
University of Massachusetts, Worcester
Other
Eligibility
18 Years to 29 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
2
States / cities
Marlborough, Massachusetts • Worcester, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 3, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

Little Cigar and Cigarillo Warnings Among US Adults Who Use LCCs

NCT05849051
View directory record Official record
Conditions
Tobacco Use
Interventions
Newly developed warnings with images at 30% size, FDA proposed text-only warnings at 30% size
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
1,029 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 8, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Studying the Impact of Product Packaging in a Virtual Store Environment

NCT04381481
View directory record Official record
Conditions
Obesity, Childhood
Interventions
Experimental Drink: Nutrition claim on fruit drinks, Control Drink: No nutrition claim, Experimental snack: Text warning, Experimental snack: Graphic warning, Control snack: barcode label
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
2,374 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 18, 2021 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Warnings on Sugar-Sweetened Beverages

NCT04223687
View directory record Official record
Conditions
Dietary Habits
Interventions
Sugar-Sweetened Beverage Warning Label, Neutral label
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
326 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 1, 2021 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional

Effects of Implicit Messaging by Cigarette Pack Color on Smoking Behaviors

NCT02301351
View directory record Official record
Conditions
Cigarette Smoking Behavior
Interventions
Graphic Warning Label, Text Warning Label
Other
Lead sponsor
University of Pennsylvania
Other
Eligibility
21 Years to 60 Years
Enrollment
316 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2019
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 16, 2019 · Synced Oct 21, 2026, 5:29 PM EDT
Recruiting Not applicable Interventional

Design and Feasibility of an SMS-based Safety Planning Intervention

NCT07365579
View directory record Official record
Conditions
Suicidal Ideation and Behavior
Interventions
Text Messaging based Safety Planning Intervention, Facilitated Referral to Crisis Resources
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 24 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 25, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Texting for Relapse Prevention

NCT02819349
View directory record Official record
Conditions
Schizophrenia, Schizoaffective Disorder
Interventions
Texting for Relapse Prevention (T4RP)
Behavioral
Lead sponsor
Center for Innovative Public Health Research
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 20, 2020 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Little Cigar and Cigarillo Warnings to Reduce Tobacco-Related Cancers and Disease - Eye Tracking

NCT06546618
View directory record Official record
Conditions
Tobacco Use
Interventions
LCC pack stimuli images
Behavioral
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
90 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional

Effect of Cigarette Pack Warnings and Packaging Among Young Adult Smokers

NCT03446170
View directory record Official record
Conditions
Tobacco Use
Interventions
Graphic cigarette warning labels, plain packaging
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 30 Years
Enrollment
400 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2020
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jan 4, 2022 · Synced Oct 21, 2026, 5:29 PM EDT
Active, not recruiting Not applicable Interventional

Preeclampsia Educational Program Study (PrEPS)

NCT06373367
View directory record Official record
Conditions
Preeclampsia, Preeclampsia Severe, Preeclampsia Mild, Preeclampsia Postpartum
Interventions
Illustration based application, Text based application
Other
Lead sponsor
MemorialCare Health System
Other
Eligibility
18 Years and older · Female only
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2026
U.S. locations
1
States / cities
Long Beach, California
Source: ClinicalTrials.gov public record
Updated Oct 9, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Results available

Improving ADHD Behavioral Care

NCT03628781
View directory record Official record
Conditions
ADHD
Interventions
Behavioral tools integrated within mehealth for ADHD software, mehealth for ADHD
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
5 Years to 12 Years
Enrollment
169 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 25, 2022 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Beverage Media Campaign and Added-sugar Warning Labels

NCT05563181
View directory record Official record
Conditions
Attitude, Intention
Interventions
Control bar code label, Warning label, Informational campaign poster about added-sugar warning labels
Behavioral
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 99 Years
Enrollment
2,275 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Aug 1, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

UV Exposure Assessed With Wearable Sensor and Sun Protection

NCT03344796
View directory record Official record
Conditions
Sunburn, Erythema, Sun Protection
Interventions
Goal attainment
Behavioral
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 70 Years
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jul 27, 2023 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Sugar-Sweetened Beverage Health Warnings

NCT03511937
View directory record Official record
Conditions
Dietary Habits
Interventions
Sugar-Sweetened Beverage Health Warning Label, Neutral Label
Behavioral · Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 30, 2021 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of UPF Warning Labels on Social Media Among Teens and Young Adults

NCT07227519
View directory record Official record
Conditions
Nutrition, Healthy Diet, Food Preferences
Interventions
UPF Warning Labels, No Labels (Control)
Behavioral
Lead sponsor
University of Tennessee
Other
Eligibility
13 Years to 29 Years
Enrollment
1,012 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Aug 10, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

In-Home Technology for Caregivers of People With Dementia and Mild Cognitive Impairment

NCT04206670
View directory record Official record
Conditions
Dementia, Mild Cognitive Impairment, Alzheimer Disease
Interventions
In-Home Technology System and Questionnaires, Waiting Control In-Home Technology System and Questionnaires
Device
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated May 10, 2022 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Communicating Smoking Risks Through Graphic Warning Labels

NCT01782053
View directory record Official record
Conditions
Lung Cancer, Heart Disease
Interventions
Picture warning, Control
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
245 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2014
U.S. locations
2
States / cities
Columbus, Ohio • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 2, 2014 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of E-cigarette Device Warnings

NCT05714982
View directory record Official record
Conditions
Vaping Behaviors
Interventions
Label with text health warning, Label with pictorial health warning, Label with neutral statements about vaping
Other
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
21 Years and older
Enrollment
1,369 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated Sep 12, 2025 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study of Hookah Café Customers in the Atlanta Area

NCT05916170
View directory record Official record
Conditions
Waterpipe Tobacco Smoking
Interventions
Health Warnings, No Warnings
Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
977 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Feb 2, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Not yet recruiting Not applicable Interventional

Eye-Tracking Alcohol Warning

NCT07852013
View directory record Official record
Conditions
Alcohol
Interventions
Alcohol Cancer Warning Labels
Behavioral
Lead sponsor
University of Miami
Other
Eligibility
21 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Oct 20, 2026 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of Graphic Cigarette Warnings

NCT02247908
View directory record Official record
Conditions
Smoking
Interventions
Surgeon General's Warning, Graphic Warning
Other
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
2,149 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2016
U.S. locations
2
States / cities
Oakland, California • Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 14, 2016 · Synced Oct 21, 2026, 5:29 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

In-Home Technology for Caregivers of People With Dementia and Mild Cognitive Impairment: Rural Homes

NCT05159583
View directory record Official record
Conditions
Dementia, Mild Cognitive Impairment, Alzheimer Disease
Interventions
In-Home Technology System, Limited In-Home Technology
Device
Lead sponsor
University of California, Berkeley
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Berkeley, California
Source: ClinicalTrials.gov public record
Updated Feb 25, 2025 · Synced Oct 21, 2026, 5:29 PM EDT