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SmokingQUITNCT02565381

A Pilot Randomized Controlled Trial of Financial Incentives, Text Messaging, and Usual Care for Homeless Smokers

A study testing Transdermal nicotine patch, In-person smoking cessation counseling and Contingent financial rewards for smoking abstinence in people with Smoking, run by Massachusetts General Hospital at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The QUIT (Quitting with Usual Care, Incentives, and Technology) Smoking Study is a 3-arm pilot randomized controlled trial that will test the effect of 2 different experimental smoking cessation interventions relative to a control condition in homeless cigarette smokers. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Smoking
What is being tested?
Transdermal nicotine patch, In-person smoking cessation counseling and Contingent financial rewards for smoking abstinence
Could I receive a placebo?
No, everyone receives an active treatment
How many people
83 participants
Where
1 siteUnited States
Study dates
Oct 2015to Aug 2016
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Proficient in English, assessed with items asking about native language and self-reported comfort communicating in English among non-native speakers.
  • Age ≥18 years old, assessed by self-report and verified by date of birth.
  • Has smoked ≥100 cigarettes and currently smokes ≥5 cigarettes per day, verified by an exhaled carbon monoxide level of ≥8 ppm.
  • Ready to try quitting smoking within the next month.
  • Currently homeless, assessed by self-report and defined as usually staying in an emergency shelter, transitional shelter, abandoned building, place of business, car or other vehicle, church or mission, hotel or motel, or anywhere outside during the past 7 days. Additionally, individuals will be considered currently homeless if they usually stayed in somebody else's house, apartment/condominium, or room in the past 7 days because of not having their own place to stay.

Who cannot join

  • Currently pregnant, assessed by a urine pregnancy test conducted on all premenopausal biologic females who have not had a hysterectomy, or planning to become pregnant in the next 2 months.
  • Past 30-day use of nicotine replacement therapy, bupropion, or varenicline for smoking cessation, assessed by self-report. Use of bupropion for reasons other than to quit smoking (e.g. depression) is permissible.
  • Prior serious adverse reaction to the nicotine patch, defined as any reaction that was life-threatening or required hospitalization.
  • Heart attack or chest pain within the past 2 weeks.
  • Inability to read a sentence written at a Flesch-Kincaid grade level of 4.
  • Inability to provide informed consent, assessed with knowledge questions about the material presented during the informed consent process that individuals must correctly answer before providing informed consent to participate.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Boston Health Care for the Homeless Program

    Boston, Massachusetts, 02118

Other trials in United States

About this study

Official title: The QUIT Smoking Study: A Pilot Randomized Controlled Trial of Financial Incentives, Text Messaging, and Usual Care to Help Homeless Smokers Quit Smoking

The QUIT (Quitting with Usual Care, Incentives, and Technology) Smoking Study is a 3-arm pilot randomized controlled trial that will test the effect of 2 different experimental smoking cessation interventions relative to a control condition in homeless cigarette smokers. All participants will receive free transdermal nicotine patches and weekly in-person smoking cessation counseling. In addition, participants randomized to the first experimental condition will receive financial rewards for biochemically-verified smoking abstinence, and participants randomized to the second experimental condition will be enrolled in a text messaging program to support smoking abstinence.

Conditions
Smoking
Being tested
Transdermal nicotine patch, In-person smoking cessation counseling, Contingent financial rewards for smoking abstinence, Text messages to support smoking abstinence
Medical subject headings
Smoking

What participants receive

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

  • Transdermal nicotine patchDrug

    Also called Nicotine

    • ≥10 cigarettes per day: nicotine 21mg/24hr patch daily x 6 weeks, then nicotine 14mg/24hr patch daily x 2 weeks
    • <10 cigarettes per day: nicotine 14mg/24hr patch daily x 8 weeks
  • In-person smoking cessation counselingBehavioural

    • One-on-one 15-minute counseling sessions once per week for 8 weeks
  • Contingent financial rewards for smoking abstinenceBehavioural

    Also called Contingency management

    • Escalating-value financial rewards for smoking abstinence, verified by exhaled carbon monoxide <8ppm
  • Text messages to support smoking abstinenceBehavioural

    • 1-5 text messages per day starting up to 2 weeks before the quit date and continuing until 6 weeks after the quit date, delivered by SmokefreeTXT
Study groups in NCT02565381
Study groupRoleWhat they receive
Control (N=25)Active comparator* Transdermal nicotine patch * In-person smoking cessation counseling
Receives: Drug: Transdermal nicotine patch; Behavioral: In-person smoking cessation counseling
Financial rewards (N=25)Experimental* Transdermal nicotine patch * In-person smoking cessation counseling * Contingent financial rewards for smoking abstinence
Receives: Drug: Transdermal nicotine patch; Behavioral: In-person smoking cessation counseling; Behavioral: Contingent financial rewards for smoking abstinence
Text messaging (N=25)Experimental* Transdermal nicotine patch * In-person smoking cessation counseling * Text messages to support smoking abstinence
Receives: Drug: Transdermal nicotine patch; Behavioral: In-person smoking cessation counseling; Behavioral: Text messages to support smoking abstinence

What is being measured

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

  1. Number of Participants With Biochemically-verified Smoking Abstinence, Assessed 14 Times Over 8 Weeks

    The primary outcome is a repeated-measures assessment of smoking abstinence, defined as an exhaled carbon monoxide <8ppm and assessed 14 times over the 8-week study period (3 times/week for the first 2 weeks, 2 times/week for the next 2 weeks, and once every week for the last 4 weeks)

    Measured: Point-in-time abstinence assessed in a repeated fashion 14 times over the 8-week study period

Secondary outcomes (7)
  1. Percentage of Visits Abstinent of Smoking

    Percentage of 14 assessment visits at which a participant is abstinent of smoking, defined as an exhaled carbon monoxide level <8ppm.

    Measured: 8 weeks

  2. Smoking Abstinence at End of Study

    Point-prevalence smoking abstinence, defined as an exhaled carbon monoxide level <8ppm, at the 14th (final) study visit.

    Measured: 8 weeks

  3. Change in Cigarette Consumption

    Changes in the average number of cigarettes per day relative to baseline, defined by self-report and repeatedly assessed at the 8 assessment visits occurring on Fridays.

    Measured: Once per week for 8 weeks

  4. Change in Behavioral Health

    Past-month drug use severity (score range 0-1), past-month alcohol use severity (score range 0-1), and past-month psychiatric severity (0-1) were each assessed with the Addiction Severity Index (ASI) - 5th Edition, at baseline and at the 10th and 14th study visits. For each ASI measure, higher scores represent greater drug, alcohol, or psychiatric severity. Changes in ASI scores between baseline and 4 or 8 weeks can range from -1 to +1. When interpreting changes in scores, negative values indicate decreases in scores from baseline to 4 or 8 weeks, and positive values indicate increases in scores from baseline to 4 or 8 weeks.

    Measured: 4 weeks and 8 weeks

  5. Study Visit Attendance

    Percentage of 14 assessment visits attended.

    Measured: 8 weeks

  6. Counseling Visit Attendance

    Percentage of 8 counseling visits attended.

    Measured: 8 weeks

  7. Nicotine Patch Use

    Days of nicotine replacement therapy use in past week, repeatedly measured at the 8 assessment visits occurring on Fridays.

    Measured: 8 weeks

Timeline

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

  1. First posted1 Oct 2015 (estimated)
  2. Study startOct 2015
  3. Primary completionJun 2016
  4. Study completionAug 2016

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
83 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02565381
Sponsor's protocol ID
2015P001300
Other IDs
K23DA034008
Acronym
QUIT
Status last verified
Jun 2017
First submitted
29 Sep 2015
Last updated
14 Jul 2017
Data monitoring committee
No

Publications

  • Baggett TP, McGlave C, Kruse GR, Yaqubi A, Chang Y, Rigotti NA. SmokefreeTXT for Homeless Smokers: Pilot Randomized Controlled Trial. JMIR Mhealth Uhealth. 2019 Jun 4;7(6):e13162. doi: 10.2196/13162.

    PubMed 31165717
  • Baggett TP, Yaqubi A, Berkowitz SA, Kalkhoran SM, McGlave C, Chang Y, Campbell EG, Rigotti NA. Subsistence difficulties are associated with more barriers to quitting and worse abstinence outcomes among homeless smokers: evidence from two studies in Boston, Massachusetts. BMC Public Health. 2018 Apr 10;18(1):463. doi: 10.1186/s12889-018-5375-z.

    PubMed 29631559
  • Baggett TP, Chang Y, Yaqubi A, McGlave C, Higgins ST, Rigotti NA. Financial Incentives for Smoking Abstinence in Homeless Smokers: A Pilot Randomized Controlled Trial. Nicotine Tob Res. 2018 Nov 15;20(12):1442-1450. doi: 10.1093/ntr/ntx178.

    PubMed 29059442

Questions about this trial

What is this clinical trial studying?

A study testing Transdermal nicotine patch, In-person smoking cessation counseling and Contingent financial rewards for smoking abstinence in people with Smoking, run by Massachusetts General Hospital 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 5 inclusion and 6 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: finished, as of the sponsor's last update on 14 Jul 2017. 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?

Yes. Results are posted in the registry (first posted 14 Jul 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Number of Participants With Biochemically-verified Smoking Abstinence, Assessed 14 Times Over 8 Weeks (time frame: Point-in-time abstinence assessed in a repeated fashion 14 times over the 8-week study period). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02565381, which also lists 3 linked publications.

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 14 Jul 2017.

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