N/A
Completed N=226
A Proof-of-concept RCT of Version 3.0 of the Smoking Cessation Smartphone App "Smiling Instead of Smoking" (SiS)
Nondaily Smoking
Source: ClinicalTrials.gov NCT04672239 ↗
Enrolled (actual)
226
Serious AEs
0.0%
Results posted
Sep 2024
Primary outcomePrimary: End of Treatment Group Differences in Smoking Self-Efficacy Questionnaire (SEQ) — 63.81; 60.74; 58.45; 71.79 units on a scale — p=0.0219
Summary
This is the third study in a series of 3 studies to develop a smartphone app to support nondaily smokers in quitting smoking, as funded by the American Cancer Society grant #RSG CPPB - 130323 (project dates: 07/01/2017 - 6/30/2021). Study 1 (2017P001106) demonstrated feasibility and acceptability when smokers were onboarded in person. Study 2 (2018P002699) demonstrated feasibility and acceptability when smokers were onboarded remotely, nationwide. The present study is Study 3. It is a 3-group proof-of-concept RCT, in which we seek to test if our app (i.e., Version 3 of our developed smartphone app, called 'Smiling instead of Smoking' (SiS)) is superior to treatment as usual (i.e., TAU) and superior to a control app (i.e., the National Cancer Institute's smartphone app "QuitGuide" (QG).
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY End of Treatment Group Differences in Smoking Self-Efficacy Questionnaire (SEQ) |
63.81; 60.74; 58.45; 71.79; 67.58; 65.40 | 0.0219 sig |
| SECONDARY Self-reported 30-day Point-prevalence Abstinence |
9; 3; 9; 32; 23; 18 | 0.2259 |
| SECONDARY Self-reported Past Week Cigarette Change |
-6.0; -6.0; -7.0; -5.0; -6.0; -7.0 | 0.9152 |
| SECONDARY Satisfaction With Smoking Cessation Support |
26.91; 26.61; 25.65 | 0.7469 |
| SECONDARY Time Spent Applying Content Brought up by the Apps/"Clearing the Air" |
30.0; 25.0; 30.0 | 0.1315 |
| SECONDARY Use of Smoking Cessation Strategies |
4.13; 3.90; 3.97 | 0.0429 sig |
| SECONDARY Perceived Impact of the Provided Materials on Quitting |
4.13; 3.98; 3.84 | 0.1996 |
| SECONDARY Appreciation |
108.91; 106.28; 104.98 | 0.2988 |
| SECONDARY Actual App Usage (SiS and QG Only) |
32.5; 26.0 | 0.4182 |
| SECONDARY Self-reported App Usage, Weeks 3 to 6 Post-quit (SiS and QG Only) |
35.0; 22.5 | 0.0563 |
| SECONDARY Likability Rating of the App (SiS and QG Only) |
4.19; 4.08 | 0.5018 |
| SECONDARY Satisfaction Rating of the Smoking Cessation Support (SiS and QG Only) |
4.25; 4.11 | 0.4246 |
| SECONDARY App Usability Ratings (SiS and QG Only) |
81.91; 79.48 | 0.4078 |
Eligibility Criteria
Inclusion Criteria
- 18+ years of age
- smartphone ownership (Android or iPhone only)
- current nondaily smoker, who smokes at least weekly, and no more than 25 out of the past 30 days
- lifetime history of having smoked 100+ cigarettes
- willing to make a smoking quit attempt
- currently residing in the United States of America
Exclusion Criteria
- Under 18 years of age
- Does not own an Android or iPhone
- Is not a nondaily smoker, who smokes at least weekly, and no more than 25 out of the past 30 days
- Does not have a lifetime history of having smoked 100+ cigarettes
- Is not willing to make a smoking quit attempt
- Is not currently residing in the United States of America
Data sourced from ClinicalTrials.gov (NCT04672239). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.