Cigarette Smoking Among Young Adults

Not Applicable

Completed

• Conditions: Cigarette Smoking; Smoking Behaviors
• Interventions: Other: Very low nicotine cigarettes

• Registration Number: NCT04340947
• Lead Sponsor: University of Oklahoma

Brief Summary

This study will examine perceptions and smoking behavior of menthol and non-menthol very low nicotine cigarettes in young adult smokers. The aims are to examine perceptions and smoking behavior in the laboratory and in the natural environment. A separate sub-sample of men and women who identify as LGBTQ2S+ will also be recruited.

Detailed Description

This proposal includes three different aspects of assessment for menthol smoking young adults. The laboratory phase includes three separate sessions of laboratory smoking through a machine designed to measure puff behavior; the EMA phase includes 21 days of monitoring smoking behavior and attitudes related to smoking when smoking one's usual brand cigarette, the assigned menthol low nicotine cigarette, and the assigned non-menthol low nicotine cigarette in the participant's natural environment. The order of administration of smoking menthol and non-menthol VLNC will be counterbalanced. There will be a 7-day wash-out period between each 7-day period of using low nicotine cigarettes. The final phase includes a virtual marketplace where participants can purchase and use the research cigarettes in the context of other available tobacco products on the market, or purchase no tobacco products at all. There will be a final assessment, over the phone or in-person, 30-days after the final study visit (at week 8), to assess tobacco use behavior and attitudes about tobacco use. Participants will be enrolled for approximately 9 weeks. Week 1 will consist of smoking one's usual brand of cigarette in the laboratory and then in their home environment for 7-days. Week 2 will consist of smoking the first very low nicotine cigarette in the home environment for 7 days and then in the laboratory. Week three will consist of a 7-day wash-out period where participants can smoke their usual brand again, as they normally would. Week 4 will consist of smoking the second very low nicotine cigarette at home for 7 days and then in the laboratory. Week 5 will consist of returning to the laboratory for a final study visit and complete a hypothetical experimental tobacco marketplace. One month (4 weeks) after the final study visit (week 9), participants will complete a 30-day follow-up of cigarette smoking and other tobacco use behavior.

Study Timeline

• Study First Submitted: 2020-03-25
• Study First Submitted QC: 2020-04-09
• Study First Posted: 2020-04-10
• Study Start: 2021-08-01
• Primary Completion: 2024-03-30
• Study Completion: 2024-04-30
• Status Verified: 2024-08
• Last Update Submitted: 2024-08-27
• Last Update Posted: 2024-08-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 172

Inclusion Criteria

1. Ages18 to 34;
2. Smoke cigarettes "somedays" or "everyday" for at least the past 3-months;
3. A strong preference for menthol cigarettes (i.e., smoke menthol >80% of the time); and
4. Ability to read English at an 8th grade level or higher;
5. No immediate plans to quit smoking.

Exclusion Criteria

1. Current use of nicotine replacement therapy (NRT);
2. Pregnant or planning to become pregnant, or currently breastfeeding;
3. Past or current self-reported clinically significant heart disease or hypertension, or other smoking-related disease (by history) that preclude successful study completion;
4. Serious psychiatric disorder;
5. Inability to abstain from nicotine/tobacco products;
6. Strong preference for non-menthol cigarettes (smoke non-menthol > 80% of the time)

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: CROSSOVER

Arm && Interventions

Group	Intervention	Description
Non-menthol very low nicotine cigarette	Very low nicotine cigarettes	Participants will smoke non-menthol flavored very low nicotine cigarettes in their home environment for 7 days. At the end of 7-days, they will also smoke one non-menthol flavored very low nicotine cigarette in the laboratory.
Menthol very low nicotine cigarette	Very low nicotine cigarettes	Participants will smoke menthol flavored very low nicotine cigarettes in their home environment for 7 days. At the end of 7-days, they will also smoke one menthol flavored very low nicotine cigarette in the laboratory.

Primary Outcome Measures

Name	Time	Method
Change in Cigarette Evaluation Scale (CES)	Baseline to week 9	Subjective response to smoking
Change in puff topography	Baseline to week 4	total inhalation volume from smoking behavior in the laboratory
Hypothetical Purchasing of Tobacco Products	Assessed during tobacco purchase tasks completed at week 5	Purchasing of cigarettes and other tobacco products across changing prices in Experimental Tobacco Marketplace task

Secondary Outcome Measures

Name	Time	Method
Change in CO boost	Baseline to week 4	measures expired alveolar carbon monoxide level

Trial Locations

Locations (1)

Health Promotion Research Center; 🇺🇸 Oklahoma City, Oklahoma, United States