A Proof-of-concept RCT of Version 3.0 of the Smoking Cessation Smartphone App "Smiling Instead of Smoking" (SiS)
Public ClinicalTrials.gov record NCT04672239. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
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).
Study identification
- NCT ID
- NCT04672239
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Not applicable
- Enrollment
- 229 participants
Conditions and interventions
Conditions
Interventions
- Smartphone app "Smiling instead of Smoking" (SiS) Version 3 Behavioral
- Smartphone app "QuitGuide" (QG) Behavioral
- Brochure "Clearing the Air" (CTA) Behavioral
Behavioral
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Accepts healthy volunteers
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jan 27, 2021
- Primary completion
- Aug 9, 2022
- Completion
- Jan 5, 2023
- Last update posted
- Sep 18, 2024
2021 – 2023
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Massachusetts General Hospital | Boston | Massachusetts | 02114 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04672239, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Sep 18, 2024 · Synced Sep 2, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04672239 live on ClinicalTrials.gov.