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Showing 1–9 of 9 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Normal Nicotine Cigarettes (NNC) Clear all
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low Nicotine Cigarettes, Smoking, and Chronic Pain

NCT05032755
View directory record Official record
Conditions
Chronic Pain, Smoking, Cigarette
Interventions
SPECTRUM NRC 102/103 investigational cigarettes, SPECTRUM NRC 600/601 investigational cigarettes
Other
Lead sponsor
Duke University
Other
Eligibility
21 Years to 65 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 28, 2025 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Project 2 Cigarette and E-cigarette Nicotine Content and E-liquid Flavors

NCT03185546
View directory record Official record
Conditions
Smoking
Interventions
NNC Spectrum Cigarette, VLNC Spectrum Cigarette, Moderate nicotine level e-liquid, Low nicotine level e-liquid, Tobacco Flavors, Tobacco and non-tobacco e-liquid flavors
Other
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
18 Years and older
Enrollment
156 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
2
States / cities
Winston-Salem, North Carolina • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 13, 2021 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Results available

Impact of Nicotine Messaging on Beliefs and Behavior

NCT05108649
View directory record Official record
Conditions
Smoking Behaviors, Cigarette Smoking
Interventions
Nicotine Messaging, Cigarette Condition
Other
Lead sponsor
Andrew Strasser
Other
Eligibility
21 Years and older
Enrollment
74 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Dec 7, 2025 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Impact of Exclusive Use of Low Nicotine Cigarettes on Compensatory Smoking

NCT03311646
View directory record Official record
Conditions
Smoking
Interventions
Normal nicotine content cigarettes (NNC, Baseline), Very low nicotine content (VLNC)
Other
Lead sponsor
Medical University of South Carolina
Other
Eligibility
18 Years and older
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Jan 27, 2020 · Synced Sep 23, 2026, 4:36 PM EDT
Recruiting Not applicable Interventional

Opioids, Low Nicotine Cigarettes, and Chronic Pain

NCT06747871
View directory record Official record
Conditions
Chronic Pain, Tobacco Use, Opioid Substitution Treatment
Interventions
Very Low Nicotine Cigarettes (VLNC), Normal Nicotine Cigarettes (NNC)
Behavioral
Lead sponsor
Duke University
Other
Eligibility
21 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 8, 2026 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Low Nicotine Cigarettes Plus Electronic Cigarettes

NCT04058717
View directory record Official record
Conditions
Tobacco Dependence
Interventions
Normal Nicotine Content research cigarettes, High Nicotine e-cigarette, Very Low Nicotine Content research cigarettes, Zero Nicotine e-cigarette
Other
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
21 Years to 70 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
Hershey, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Sep 10, 2025 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Facilitating Smoking Cessation With Reduced Nicotine Cigarettes

NCT02796391
View directory record Official record
Conditions
Smoking Cessation
Interventions
Very Low Nicotine Content (VLNC) Cigarettes, One on One Counseling
Drug · Behavioral
Lead sponsor
H. Lee Moffitt Cancer Center and Research Institute
Other
Eligibility
18 Years and older
Enrollment
163 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2021
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Nov 13, 2022 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Impact of New Standards for Tobacco Products Among Dual E-Cigarette/Combusted Cigarette Users - Project 2

NCT05473585
View directory record Official record
Conditions
Smoking, Smoking, Cigarette, E-Cig Use, Nicotine Dependence
Interventions
very low nicotine content cigarettes, normal nicotine content cigarettes, Study e-cigarette
Other
Lead sponsor
Duke University
Other
Eligibility
21 Years and older
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 18, 2023 · Synced Sep 23, 2026, 4:36 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Reactions to Reduced Nicotine Cigarettes in Young Adult Low-Frequency Smokers

NCT02989038
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Very Low Nicotine Content Cigarettes, Intermediate Nicotine Content Cigarettes, Normal Nicotine Content Cigarettes
Other
Lead sponsor
Duke University
Other
Eligibility
15 Years to 25 Years
Enrollment
182 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Mar 3, 2020 · Synced Sep 23, 2026, 4:36 PM EDT