NCT03311646

Brief Summary

Smoking is the leading cause of preventable death in the United States. An FDA-mandated reduction in the nicotine content of cigarettes might reduce the health burden of tobacco by reducing the prevalence of smoking. The proposed project will test the impact of nicotine reduction on smoking behavior and smoke exposure in a setting where participants are restricted from using their usual brand cigarettes.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
31

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Apr 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

September 29, 2017

Completed
18 days until next milestone

First Posted

Study publicly available on registry

October 17, 2017

Completed
6 months until next milestone

Study Start

First participant enrolled

April 15, 2018

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 15, 2018

Completed
16 days until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2018

Completed
1.1 years until next milestone

Results Posted

Study results publicly available

January 18, 2020

Completed
Last Updated

January 28, 2020

Status Verified

January 1, 2020

Enrollment Period

7 months

First QC Date

September 29, 2017

Results QC Date

January 2, 2020

Last Update Submit

January 17, 2020

Conditions

Outcome Measures

Primary Outcomes (2)

  • Breath Sample (Expired Carbon Monoxide)

    Measure of short term smoke exposure, higher scores indicate more smoke exposure. While in the hotel, participants provided breath samples at 8am, 12pm, 4pm, 8pm beginning with 4pm on Day 1 and ending with 12pm on Day 5. Outcome here are from the VLNC condition. Baseline (NNC) data are reported in the baseline characteristics section.

    8am, 12pm, 4pm, 8pm beginning with 4pm on Day 1 and ending with 12pm on Day 5

  • Average Cigarettes Smoked Per Day

    Measure of smoking behavior. Participants returned smoked cigarette butts each day at 12pm, creating four 24-hr samples for each hotel phase (NNC and VLNC). Outcomes reported here are from the VLNC condition. Baseline (NNC) data are reported in the baseline characteristics section.

    Participants returned smoked cigarette butts each day at 12pm, creating four 24-hr samples for each hotel phase. Data reported here are for the four 24-hr samples of the VLNC condition.

Secondary Outcomes (2)

  • Minnesota Nicotine Withdrawal Scale

    Participants complete this self-report questionnaire on Days 2-5 during the NNC (Baseline) and VLNC conditions. Presented here are the scores from the VLNC condition.

  • Questionnaire of Smoking Urges

    Participants complete the Questionnaire of Smoking Urges on Days 2-5 of both the NNC (baseline) and VLNC Condition. Data here are from the VLNC Condition.

Study Arms (1)

Nicotine Content Manipulation

EXPERIMENTAL

All participants receive normal nicotine content (NNC) cigarettes during Baseline and all participants receive very low nicotine content (VLNC) cigarettes during the very low nicotine content condition.

Other: Normal nicotine content cigarettes (NNC, Baseline)Other: Very low nicotine content (VLNC)

Interventions

Participants will exclusively smoke research cigarettes that have a normal nicotine content for five days/four nights while staying in a hotel.

Nicotine Content Manipulation

Participants will exclusively smoke research cigarettes that have a very low nicotine content for five days/four nights while staying in a hotel.

Nicotine Content Manipulation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • male or female participants who are least 18 years old and smoke daily
  • willing to stay in a hotel for two four-night stays during the prearranged dates

You may not qualify if:

  • unwilling to use research cigarettes as part of the trial
  • pregnant, trying to become pregnant, or breastfeeding
  • additional smoking and health criteria determined at screening

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Medical University of South Carolina

Charleston, South Carolina, 29425, United States

Location

Related Publications (1)

  • Smith TT, Koopmeiners JS, White CM, Denlinger-Apte RL, Pacek LR, De Jesus VR, Wang L, Watson C, Blount BC, Hatsukami DK, Benowitz NL, Donny EC, Carpenter MJ. The Impact of Exclusive Use of Very Low Nicotine Cigarettes on Compensatory Smoking: An Inpatient Crossover Clinical Trial. Cancer Epidemiol Biomarkers Prev. 2020 Apr;29(4):880-886. doi: 10.1158/1055-9965.EPI-19-0963. Epub 2020 Feb 26.

MeSH Terms

Conditions

Smoking

Interventions

BaseLine dental cement

Condition Hierarchy (Ancestors)

Behavior

Results Point of Contact

Title
Dr. Tracy Smith
Organization
Medical University of South Carolina

Study Officials

  • Tracy Smith, PhD

    Medical University of South Carolina

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
OTHER
Intervention Model
SINGLE GROUP
Model Details: All participants experienced an NNC phase (baseline) and a VLNC phase.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

September 29, 2017

First Posted

October 17, 2017

Study Start

April 15, 2018

Primary Completion

November 15, 2018

Study Completion

December 1, 2018

Last Updated

January 28, 2020

Results First Posted

January 18, 2020

Record last verified: 2020-01

Locations