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NCT04672239 · ClinicalTrials.gov registry record · NA
A Proof-of-concept RCT of Version 3.0 of the Smoking Cessation Smartphone App "Smiling Instead of Smoking" (SiS)
A NA study, sponsored by Massachusetts General Hospital.
- Completed
- Registry status
- NA
- Development phase
- 229
- Enrollment target
NCT04672239: Completed NA study, sponsored by Massachusetts General Hospital.
NCT04672239 is a NA study that has completed, run by Massachusetts General Hospital. The registered enrollment target is 229 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (84% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT04672239, a NA study, has completed, sponsored by Massachusetts General Hospital.
- COMPLETED
- Registry status
- NA
- Development phase
- 229 participants
- Enrollment target
Study 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).
Primary Outcome
The Smoking Self-Efficacy Questionnaire (SEQ-12) (Etter, Bergman, Humair, \& Perneger, 2000) is a two-dimensional 12-item self-report scale measuring a person's confidence in his or her ability to abstain from smoking when facing internal stimuli (e.g. feeling depressed) and external stimuli (e.g. being with smokers) on a 0-100 slider scale (i.e., 0=not at all confident that I can refrain; 100=extremely confident that I can refrain). Scale scores are created by mean scoring across items and rang
Interventions
- BEHAVIORAL Smartphone app "Smiling instead of Smoking" (SiS) Version 3
- BEHAVIORAL Smartphone app "QuitGuide" (QG)
- BEHAVIORAL Brochure "Clearing the Air" (CTA)
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 229 participants |
| Start Date | 2021-01-28 |
| Est. Completion | 2023-01-06 |
| Phase | NA |
What the finished NCT04672239 record still lists
NCT04672239 is an interventional study that assigns participants to a tested intervention. The registered 229 participants enrollment target is mid-sized for trials with a published cap, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (84% lower).
The record links to 0 conditions, and to 3 interventions - of which Smartphone app "Smiling instead of Smoking" (SiS) Version 3 is the first listed.
NCT04672239 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT04672239 about?
NCT04672239 is a clinical study titled "A Proof-of-concept RCT of Version 3.0 of the Smoking Cessation Smartphone App "Smiling Instead of Smoking" (SiS)". 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 wh...
What is the current status of trial NCT04672239?
This trial is currently completed. It is a NA study. The enrollment target is 229 participants. The study started on 2021-01-28. Estimated completion is 2023-01-06.
What interventions are being tested in trial NCT04672239?
The interventions under investigation include: Smartphone app "Smiling instead of Smoking" (SiS) Version 3 (BEHAVIORAL), Smartphone app "QuitGuide" (QG) (BEHAVIORAL), Brochure "Clearing the Air" (CTA) (BEHAVIORAL).
Who is sponsoring clinical trial NCT04672239?
This trial is sponsored by Massachusetts General Hospital, which has 2,032 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT04672239's enrollment target sits among peer trials
229 468th of 2000 higher than 1,533 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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