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Cigarette SmokingNicWithNCT03840694

Nicotine Withdrawal and Reward Processing: Connecting Neurobiology to Real-world Behavior

A study testing Smoking Abstinence and Ad Lib Smoking in people with Cigarette Smoking and Nicotine Withdrawal, run by Duke University at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study is designed to find out how smoking affects the way the brain responds to pleasure and how this impacts smokers' behavior. Participants will complete three sessions. The first session will be a screening and training visit to determine final eligibility. Read more about this study

Who is it for?
Ages 21 to 55 yearsHealthy volunteers can take part
Conditions the study is for
Cigarette Smoking, Nicotine Withdrawal
What is being tested?
Smoking Abstinence and Ad Lib Smoking
Could I receive a placebo?
No, everyone receives an active treatment
How many people
21 participants
Where
1 siteUnited States
Study dates
10 Sep 2019to 13 May 2021
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 21 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Generally healthy
  • Right-handed
  • Smoke >= 10 cigarettes per day
  • Smoking regularly for >= 1 year
  • Carbon Monoxide (CO) > 8 at screening (or urinary cotinine > 100)
  • Own a compatible smartphone
  • Able to read and understand English
  • Able to identify at least 4 pleasurable activities they do not do concurrently with smoking or associate with smoking

Who cannot join

  • Regular use of "roll your own" cigarettes
  • Planning to quit smoking within the next 60 days
  • Current or planned smoking cessation treatment
  • Regular use of smokeless tobacco or other nicotine products
  • Expired CO > 80 parts per million
  • Breath alcohol > .000 at screening (re-attempts are allowed)
Show all 12Show fewer
  • Positive toxicology screen for exclusionary drugs
  • Use of exclusionary medications
  • Significant medical problems
  • Currently breastfeeding, pregnant, or planning to become pregnant
  • Enrollment in another study utilizing Spectrum cigarettes within the last 3 months
  • Irregular slee-wake cycles (e.g. swing-shift work, unusual sleep patterns)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Duke University School of Medicine

    Durham, North Carolina, 27705

Other trials in United States

About this study

This study is designed to find out how smoking affects the way the brain responds to pleasure and how this impacts smokers' behavior. Participants will complete three sessions. The first session will be a screening and training visit to determine final eligibility. Eligible participants will work with a researcher to develop brief scripts about times when they smoke and do other activities. Next, participants will attend two magnetic resonance imaging (MRI) scans - one after abstaining from smoking for 24 hours and the other after smoking as usual. After the second MRI, participants will answer questions on their phone every day for two weeks.

Being tested
Smoking Abstinence, Ad Lib Smoking
Medical subject headings
Cigarette Smoking

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Smoking AbstinenceOther

    Participants will abstain from smoking for 24 hours.

  • Ad Lib SmokingOther

    Participants will continue smoking as usual (i.e. ad lib) and smoke one cigarette of their own brand immediately prior to scanning.

Study groups in NCT03840694
Study groupRoleWhat they receive
Smoking AbstinenceOtherParticipants will abstain from smoking for 24 hours before one MRI scan. Smoking abstinence will be confirmed using exhaled carbon monoxide breath testing
Receives: Other: Smoking Abstinence
Ad Lib SmokingOtherParticipants will continue smoking as usual (i.e. "ad lib") before one MRI scan and smoke one additional cigarette immediately prior to scanning. Continued smoking will be confirmed using exhaled carbon monoxide breath testing.
Receives: Other: Ad Lib Smoking

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Blood Oxygen Level Dependent (BOLD) Activation

    BOLD activation in brain reward network regions

    Measured: Approximately 1-3 weeks

  2. Ecological Momentary Assessment (EMA) Pleasure Ratings

    Anticipated and actual pleasure ratings acquired each day during EMA portion of study. Individual items are based on the 12-item Tripartite Pleasure Inventory (TPI). Participants rate their anticipated pleasure for activities they expect to engage in each day using a 0 (No pleasure) to 4 (Extreme pleasure) scale in the morning. They will then rate their actual experienced pleasure for activities they actually did engage in the evening using the same scale. Scores are summed across items for a theoretical range of 0-48.

    Measured: 2-6 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Feb 2019
  2. Study start10 Sep 2019
  3. Primary completion13 May 2021
  4. Study completion13 May 2021

Why it stopped: PI leaving for another institution.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Crossover
Model description
Participants will abstain from smoking for 24 hours before one MRI scan and continue smoking as usual before the other.
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03840694
Sponsor's protocol ID
Pro00101055
Acronym
NicWith
Status last verified
May 2021
First submitted
12 Feb 2019
Last updated
20 May 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Detailed protocols, datasets and additional information will be available from the Principal Investigator and research team upon request. In order to maintain compliance with the Health Insurance Portability and Accountability Act (HIPAA) requirements, as well as university data security policies, all data will be anonymized according to HIPAA guidelines prior to being shared. Individual participant scripts will not be made publicly available due to privacy concerns and because this could impact the nature of information participants were willing to provide for scripts. Data will be provided in widely accessible formats for both self-report and imaging data. We will work with the Office of Research Contracts to obtain guidance regarding any required Data Use Agreements as needed.

Questions about this trial

What is this clinical trial studying?

A study testing Smoking Abstinence and Ad Lib Smoking in people with Cigarette Smoking and Nicotine Withdrawal, run by Duke University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 20 May 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study was stopped early (reason given: PI leaving for another institution.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Blood Oxygen Level Dependent (BOLD) Activation (time frame: Approximately 1-3 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 May 2021.

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