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Clinical Trial Summary

The purpose of this study is to evaluate the effects of switching to very low nicotine content (VLNC) cigarettes versus normal nicotine content (NNC) cigarettes on experiences with craving, withdrawal, and pain among individuals with chronic back pain who smoke cigarettes daily.


Clinical Trial Description

The goal of this study is to evaluate the effects of very low nicotine content (VLNC) cigarettes on the dynamic associations between smoking, pain, and withdrawal among daily smokers with chronic (> 3 months) non-cancer back pain (n=48). Participants will complete an initial screening session to determine eligibility, followed by a baseline abstinence session in which measures of pain and withdrawal will be assessed following 24 hrs abstinence from smoking. At the conclusion of this session participants will receive training in ecological momentary assessment (EMA) procedures and software will be installed on their smartphone. Participants will then complete a 1-week baseline period, in which they will complete EMA while continuing to smoke usual brand cigarettes. During EMA, participants will receive 6 randomly spaced daily prompts, with 15 questions to complete about smoking behavior, mood, and current pain. In addition, participants will be asked to use their smartphone to indicate whenever they are about to smoke a cigarette. Three of these cigarettes each day will be randomly selected for assessment: in these cases participants will be asked to respond to the same 15 question before and after smoking the cigarette. Participants will also complete end of day questionnaires. After the 1 week baseline period, participants will be randomly assigned to four weeks of either VLNCs (n=24) or normal nicotine content (NNC) cigarettes (n=24). During this period, participants will be asked to smoke only study cigarettes. Participants will attend weekly laboratory visits to provide biochemical verification of cigarette adherence (urine samples) and complete questionnaires. Study cigarettes will also be provided and collected at these visits. Two of the four weekly urine samples will be selected for analysis. Participants will also complete EMA during weeks 1 and 4 of study cigarette use. End of day questionnaires will continue throughout the 4 weeks. At the conclusion of the study, participants will attend a final laboratory visit after abstaining from smoking for 24 hours. During this session, self-report measures of pain, craving, and withdrawal will be assessed, along with biochemical verification (breath sample) of abstinence. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05032755
Study type Interventional
Source Duke University
Contact Maggie Sweitzer
Phone 9196680094
Email [email protected]
Status Not yet recruiting
Phase N/A
Start date October 2021
Completion date May 2023

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