Independent directory Public ClinicalTrials.gov records United States
Clinical Trials Finder
Objective public record navigation
Search Results

Search by objective public record fields.

Search by query text, NCT ID, condition, intervention, sponsor, city, state, recruitment status, phase, study type, healthy volunteer eligibility, sex, or age. Results are retrieved from ClinicalTrials.gov and synchronized into the directory. Search pages remain noindex by default.

Clear filters
ClinicalTrials.gov public records Last synced Jul 22, 2026, 6:40 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 1–16 of 16 matching trials from the live ClinicalTrials.gov search.
Local D1 index available.
Filters: Condition: Smoking, Pipe 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 17, 2025 · Synced Jul 22, 2026, 6:40 PM EDT
Terminated Phase 1Phase 2 Interventional Accepts healthy volunteers

Effects of Nicotine-Free Hookah Smoking on Blood Flow to the Heart, Muscle and Skin

NCT02310373
View directory record Official record
Conditions
Nicotine-free Hookah Smoking
Interventions
Nicotine free hookah smoking
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 39 Years
Enrollment
9 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2020 · Synced Jul 22, 2026, 6:40 PM EDT
Terminated Not applicable Interventional Accepts healthy volunteers

Effects of Hookah (Waterpipe) Smoking on Blood Vessel Function

NCT03616002
View directory record Official record
Conditions
Hookah Smoking
Interventions
Hookah smoking
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 29 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2020
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 3, 2021 · Synced Jul 22, 2026, 6:40 PM EDT
Active, not recruiting Not applicable Interventional Accepts healthy volunteers

Secondhand Effects of Hookah (i.e., Waterpipe) Smoke and Aerosol

NCT04661683
View directory record Official record
Conditions
Hookah Smoking, Secondhand Aerosol, Vascular Stiffness, Vaping
Interventions
Combustible Hookah Smoke, Electronic Hookah Aerosol, Clean Room Air
Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
21 Years to 49 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Apr 21, 2026 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Assessing Toxicity of Waterpipe Tobacco Smoking

NCT03253653
View directory record Official record
Conditions
Waterpipe Smoking
Interventions
Differential effects of waterpipe smoking practices on toxicity of waterpipe tobacco smoke
Device
Lead sponsor
San Diego State University
Other
Eligibility
21 Years and older
Enrollment
85 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Helping Poor Smokers Quit

NCT03194958
View directory record Official record
Conditions
Smoking Cessation, Smoking, Tobacco, Smoking, Cigarette, Smoking, Pipe, Smoking (Tobacco) Addiction, Smoking, Tobacco Use, Tobacco Dependence, Tobacco Use Cessation, Tobacco Smoking, Tobacco; Use, Rehabilitation, Nicotine Dependence, Nicotine Use Disorder, Nicotine Dependence, Cigarettes, Nicotine Dependence Tobacco Product
Interventions
Specialized Quitline, Basic Needs Navigator
Behavioral
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
1,944 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Dec 25, 2023 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Impact of Waterpipe Tobacco Flavors on Waterpipe Smoking Intentions, Perceptions, Patterns, and Toxicant Exposure

NCT03232827
View directory record Official record
Conditions
Smoking, Hookah, Waterpipe Smoking
Interventions
Flavored-Sweetened Waterpipe Tobacco, Unflavored-sweetened waterpipe tobacco, Unflavored-very low sweetened waterpipe tobacco, Flavored-very low sweetened waterpipe
Behavioral
Lead sponsor
University of Oklahoma
Other
Eligibility
18 Years to 50 Years
Enrollment
91 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jun 23, 2019 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Optimizing Risk Messages for Waterpipe Tobacco Cessation in Young Adults

NCT03595280
View directory record Official record
Conditions
Hookah Smoking
Interventions
Hookah tobacco risk messages
Behavioral
Lead sponsor
Georgetown University
Other
Eligibility
18 Years to 30 Years
Enrollment
349 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 19, 2021 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing and Pilot Testing an Intervention to Reduce Household Shisha Smoke Exposure Within Somali Homes

NCT06316947
View directory record Official record
Conditions
Shisha
Interventions
CHW-delivered intervention
Radiation
Lead sponsor
University of Minnesota
Other
Eligibility
6 Months and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
Minneapolis, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of Hookah Smoking on Blood Flow to the Heart, Muscle and Skin

NCT02147665
View directory record Official record
Conditions
Hookah Smoking
Interventions
Hookah smoking
Other
Lead sponsor
Cedars-Sinai Medical Center
Other
Eligibility
18 Years to 39 Years
Enrollment
42 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2016
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 12, 2020 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Brief Tobacco Intervention in the US Military

NCT03196102
View directory record Official record
Conditions
Tobacco Use, Tobacco Smoking, Smoking, Cigar, Smoking, Pipe, Smoking, Hookah, Nicotine Dependence
Interventions
BTI, Cigarette smoking military tailored pamphlet, Standard smoking cessation intervention
Behavioral
Lead sponsor
University of Virginia
Other
Eligibility
18 Years and older
Enrollment
2,999 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Oct 6, 2021 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Comparison of Hookah and Cigarette Smoking

NCT00992550
View directory record Official record
Conditions
Smoking
Interventions
Cigarette, Hookah
Drug
Lead sponsor
University of California, San Francisco
Other
Eligibility
18 Years to 65 Years
Enrollment
13 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2011
U.S. locations
1
States / cities
San Francisco, California
Source: ClinicalTrials.gov public record
Updated May 23, 2013 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Understanding the Effect of Flavor on Hookah Smoking Experience

NCT03589599
View directory record Official record
Conditions
Waterpipe Smoking
Interventions
Flavored tobacco, Non-flavored tobacco
Other
Lead sponsor
Florida International University
Other
Eligibility
18 Years to 30 Years
Enrollment
144 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Aug 2, 2020 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Role of Contingency Management in Waterpipe Smoking Cessation

NCT02159092
View directory record Official record
Conditions
Waterpipe Smoking
Interventions
Contingency Management
Behavioral
Lead sponsor
Washington State University
Other
Eligibility
18 Years and older
Enrollment
39 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
1
States / cities
Spokane, Washington
Source: ClinicalTrials.gov public record
Updated Dec 13, 2015 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Developing and Testing Waterpipe-specific Health Warning Labels

NCT05317663
View directory record Official record
Conditions
Waterpipe Smoking, Health Warning Label, Harm Perception, Puffing Behaviour, Quitting Smoking, Health Risk Behaviors
Interventions
Test Health Warning Label (HWL), Test without Health Warning Label (no-HWL)
Behavioral
Lead sponsor
Florida International University
Other
Eligibility
21 Years to 35 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Dec 9, 2024 · Synced Jul 22, 2026, 6:40 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Concurrent Hookah and Alcohol Consumption on Smoking Topography and Toxicant Exposure

NCT03096860
View directory record Official record
Conditions
Alcohol Use, Unspecified, Hookah Smoking
Interventions
Active alcohol consumption, Placebo consumption
Other
Lead sponsor
Oklahoma State University
Other
Eligibility
21 Years and older
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017
U.S. locations
1
States / cities
Oklahoma City, Oklahoma
Source: ClinicalTrials.gov public record
Updated Oct 12, 2017 · Synced Jul 22, 2026, 6:40 PM EDT