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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Warning Labels Clear all
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Sugary Drink Warning Labels

NCT03654586
View directory record Official record
Conditions
Obesity, Diabetes, Weight Gain
Interventions
Sugary drink warning labels
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
337 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 22, 2021 · Synced Sep 20, 2026, 1:10 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 13, 2016 · Synced Sep 20, 2026, 1:10 PM EDT
Recruiting Not applicable Interventional

Testing Warning Labels for Retail Cannabis Products Using a Discrete Choice Experiment

NCT07701304
View directory record Official record
Conditions
Cannabis Use, Risk Perception, Decision Making
Interventions
Discrete choice experiment (DCE) survey-experiment
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
21 Years and older
Enrollment
450 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 26, 2026 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Usability of a Perioperative Medication-Related Clinical Decision Support Application

NCT04988737
View directory record Official record
Conditions
Perioperative Medication Errors, Perioperative Adverse Medication Events
Interventions
Electronic Clinical Decision Support Application
Other
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 90 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 24, 2025 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Promoting Safe Use of Children's Cough/Cold Medicines

NCT03126851
View directory record Official record
Conditions
Cough
Interventions
Label
Other
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older
Enrollment
312 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 2, 2023 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Online Study of the Effects of Sugary Drink Warning Labels on Consumption

NCT05079477
View directory record Official record
Conditions
Food Preferences
Interventions
Exposure to sugar-sweetened beverage warning labels, Exposure to calorie information
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
216 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Apr 3, 2024 · Synced Sep 20, 2026, 1:10 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Comparing the Effects of Front-of-Package Labeling Schemes in Indonesia

NCT07526584
View directory record Official record
Conditions
Nutrition, Obesity & Overweight
Interventions
Nutrient Warning Label, Nutri-Level
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
1,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 20, 2026, 1:10 PM EDT
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 17, 2025 · Synced Sep 20, 2026, 1:10 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 15, 2019 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Climate Impact Label Design and Fast-Food Meal Selection

NCT06678178
View directory record Official record
Conditions
Food Selection
Interventions
Control (QR) Labels, Warning High Climate Impact Labels, Traffic Light Labels, Climate Grade Labels, Numeric Carbon Footprint Labels
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
6,622 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 5, 2026 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional

Testing the Influence of Different Sugary Drink Warning Label Designs

NCT03648138
View directory record Official record
Conditions
Obesity, Weight Gain, Diabetes Type 2
Interventions
Sugary drink warning labels
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
1,016 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 10, 2020 · Synced Sep 20, 2026, 1:10 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 Aug 31, 2021 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Non-nutritive Sweetener Labels in Chile

NCT06842693
View directory record Official record
Conditions
Diet, Healthy
Interventions
Control, Chilean non-nutritive sweetener label, Colombian non-nutritive sweetener label
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years and older
Enrollment
3,916 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Sep 20, 2026, 1:10 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 13, 2023 · Synced Sep 20, 2026, 1:10 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 3, 2022 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Visual Attention to Text and Pictorial Food Labels: An Eye Tracking Experiment

NCT05958888
View directory record Official record
Conditions
Health Behavior
Interventions
Text only sodium label, Icon sodium label, Pictorial sodium label, Barcode label
Behavioral
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 99 Years
Enrollment
63 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 12, 2024 · Synced Sep 20, 2026, 1:10 PM EDT
Recruiting Phase 2 Interventional

Circulating Tumor DNA

NCT06923527
View directory record Official record
Conditions
ER+ Breast Cancer
Interventions
Elacestrant
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years and older
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
7
States / cities
New Haven, Connecticut • Washington D.C., District of Columbia • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Jun 28, 2026 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pictorial Warning Labels & Memory for Relative & Absolute Cigarette Health-risk Information Over Time in Adult Smokers

NCT03499340
View directory record Official record
Conditions
Smoking Cessation, Smoking, Cigarette
Interventions
text-only PWL, low arousal graphic PWL, high arousal graphic PWL, absolute risk, relative risk
Behavioral
Lead sponsor
Ohio State University
Other
Eligibility
19 Years to 64 Years
Enrollment
3,213 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 16, 2018 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Testing Ultra-processed Warning Labels in United States

NCT07533877
View directory record Official record
Conditions
Diet, Consumer Behavior, Nutrition Labeling
Interventions
Label exposure in mock-up UPF products
Behavioral
Lead sponsor
Johns Hopkins Bloomberg School of Public Health
Other
Eligibility
18 Years and older
Enrollment
7,000 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 11, 2026 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Lazanda Fentanyl Nasal Spray Pre Radiofrequency Nerve Ablations(RFA) of Lumbar Facet Joints

NCT02571634
View directory record Official record
Conditions
Minor Procedural Pain
Interventions
Lazanda
Drug
Lead sponsor
Defense and Veterans Center for Integrative Pain Management
Other
Eligibility
18 Years and older
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Fort Bragg, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 24, 2016 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of Providing Stratification of Low Risk Penicillin Allergies on Penicillin Allergy Label Removal in ICU Setting

NCT03702283
View directory record Official record
Conditions
Penicillin Allergy
Interventions
Penicillin Allergic Risk Stratification Best Practice Alert
Other
Lead sponsor
Vanderbilt University Medical Center
Other
Eligibility
18 Years to 99 Years
Enrollment
240 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated May 12, 2022 · Synced Sep 20, 2026, 1:10 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 11, 2025 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Online Food and Beverage Labels and Vending Machine Selections

NCT05432271
View directory record Official record
Conditions
Food Preferences, Obesity, Weight Gain
Interventions
Exposure to calorie information, Exposure to healthy labels only, Exposure to healthiness information, Exposure to physical activity equivalents, Exposure to "high in" nutrient warning labels
Behavioral
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years and older
Enrollment
8,145 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 19, 2023 · Synced Sep 20, 2026, 1:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Evaluations of Alcohol Warning Labels

NCT06129487
View directory record Official record
Conditions
Oral Cancer, Esophageal Cancer, Larynx Cancer, Alcohol Drinking
Interventions
Narrative pictorial warning labels for alcoholic beverages, Non-narrative pictorial warning labels for alcoholic beverages
Behavioral
Lead sponsor
University of Connecticut
Other
Eligibility
21 Years and older
Enrollment
1,053 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Storrs, Connecticut
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Sep 20, 2026, 1:10 PM EDT