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CompletedNCT02613689Updated Jan 16, 2019

Addressing Tobacco Use Disparities Through an Innovative Mobile Phone Intervention

An interventional study of Scheduled Gradual Reduction (SGR) and Text Messages in Smokeless Tobacco Cessation, sponsored by Duke University. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-01-16.

Sponsored by Duke University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the feasibility, acceptability and preliminary efficacy of a Scheduled Gradual Reduction (SGR) intervention via Short Message Service (SMS) text messaging plus SMS Support Messages in decreasing smokeless tobacco use in a rural population.

Read the detailed description

Participants will be randomized to either the Scheduled Gradual Reduction (SGR) group or the control group. All participants in both groups will complete surveys at the baseline, end of program, and 6 month time points. All participants in both groups will also receive supportive counseling text messages at various times during the day over a period of 4 weeks.

Participants assigned to the SGR intervention group will receive their intervention, in addition to the supportive counseling messages received by the control group, via text message over a period of four weeks. Participants will initially report their smokeless tobacco use according to their usual habit, and over the course of the intervention be directed via text message precise times to start and stop each instance of smokeless tobacco use, gradually reducing the occurrences of use.

02

Conditions studied

  • Smokeless Tobacco Cessation

Keywords

  • smokeless tobacco, text message, tobacco cessation, tobacco
03

In context

Lead sponsor

Duke University is the lead sponsor of 2,025 studies on the registry; 275 are open to participants now.

Of its 194 completed or terminated interventional studies of FDA-regulated products, 159 (82%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Over 18 years of age
  • Have used smokeless tobacco for the last year, currently (past 30 days) uses smokeless tobacco daily, and use of at least one or more tins/cans per week
  • Have an address in a rural census tract defined by a RUCA code of 4-10.
  • Interested in participating in a cessation program
  • Have access to a cell phone with unlimited texting ability and have knowledge of text messaging

Exclusion criteria

Exclusion Criteria:

  • Non-English speaking
  • Have smoked cigarettes or used any other tobacco product in the past 30 days (i.e., dual user)
  • Currently participating in a smokeless tobacco cessation study
  • Family member participating in a smokeless tobacco cessation study
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
100 participants (actual)

Study arms

  • Experimental
    Scheduled Gradual Reduction (SGR)

    Subjects will receive the Scheduled Gradual Reduction (SGR) intervention, as well as SMS support text messages.

    Behavioral: Scheduled Gradual Reduction (SGR) · Behavioral: Text Messages

  • Active comparator
    Control Group

    Subjects will receive SMS support text messages

    Behavioral: Text Messages

Interventions

  • BehavioralScheduled Gradual Reduction (SGR)

    Participants in this group will group will receive the Scheduled Gradual Reduction (SGR) smokeless tobacco cessation reduction intervention via text message over a period of four weeks. Participants will initially report their smokeless tobacco use according to their usual habit, and over the course of the intervention be directed via text message precise times to start and stop each instance of smokeless tobacco use, gradually reducing the occurrences of use. In addition, this group will also receive the support messages that are sent to the control group.

  • BehavioralText Messages

    Participants in this group will receive text messages about smokeless tobacco cessation in the form of counseling messages at various times throughout the day over a period of four weeks.

06

What researchers measure

Primary outcomes

  1. Proportion of Return Text Messages sent in Response to SGR Intervention

    Assessed via text history

    Time frame: 1 month

  2. Proportion of Support Messages Read by Participants

    Self-report

    Time frame: 1 month

  3. Ratings of Usefulness of the Intervention Received

    Ratings will be assessed via patient questionnaire.

    Time frame: 1 month

  4. Quit Rate at 1 month

    Quit rate will be assessed by participant self report via questionnaires. Participants will also be asked to provide a saliva sample to check for nicotine if they report that they have quit using smokeless tobacco.

    Time frame: 1 month

  5. Quit Rate at 6 Months

    Quit rate will be assessed by participant self report via questionnaires. Participants will also be asked to provide a saliva sample to check for nicotine if they report that they have quit using smokeless tobacco.

    Time frame: 6 months

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Study locations

1 site
  • Duke University School of Nursing
    Durham, North Carolina 27710, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 16, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02613689
Lead sponsor
Duke University
Collaborators
National Cancer Institute (NCI)
Responsible party
Sponsor
First posted
Nov 24, 2015
Start date
Feb 2016
Primary completion
Nov 2018
Completion
Dec 31, 2018
Last update
Jan 16, 2019

Study contacts

Devon Noonan, PhD
principal investigator · Duke University School of Nursing
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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