NCT05094583

Brief Summary

SmokeFree is a theory-driven and evidence-based stop smoking mobile application. Based on NICE guidance and best practice for smoking cessation, the application employs over 30 behaviour change techniques used in NHS Stop Smoking Services. It has been downloaded over 4 million times and has an average user rating of 4.7 out of 5, from over 120,000 ratings. Whilst user feedback has been highly positive, there is a need for further objective studies to demonstrate its efficacy. This is a prospective, observational, two arm feasibility study, which aims to evaluate the efficacy, attrition rate and user experience of the SmokeFree App. Inpatients in the Acute Medical Unit and ambulatory emergency care unit at Chelsea and Westminster Hospital who are current smokers will be offered to participate in the study, in addition to all other smoking cessation interventions, which will also be offered to them. Care will be taken to ensure that all available options of smoking cessation support are offered in addition to the SmokeFree application. Subjects agreeing to participate will be given access to the application for a period of 12 weeks, with a target quit date no later than week 8 of use of the application. At the end of 12 weeks they will be offered a follow up appointment in a purposely designed clinic, where their CO level will be measured, as well as being invited to complete feedback questionnaires on their experience. The primary end point of the study will be the quit rate for a period of minimum of 4 weeks by the completion of the 12 week trial. This will be confirmed with exhaled carbon monoxide testing. Secondary endpoints include user experience, engagement with the mobile application and attrition rate.

Trial Health

33
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Trial recruitment is currently suspended
Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Dec 2019

Geographic Reach
1 country

1 active site

Status
suspended

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

December 4, 2019

Completed
1.2 years until next milestone

First Submitted

Initial submission to the registry

February 9, 2021

Completed
9 months until next milestone

First Posted

Study publicly available on registry

October 26, 2021

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 4, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 4, 2021

Completed
Last Updated

October 26, 2021

Status Verified

October 1, 2021

Enrollment Period

2 years

First QC Date

February 9, 2021

Last Update Submit

October 21, 2021

Conditions

Keywords

Acute Assessment UnitAmbulatory Emergency Care

Outcome Measures

Primary Outcomes (1)

  • Smoking abstinence

    Percentage of participants who achieved sustained abstinence over 4 weeks, within 12 weeks from starting to use the SmokeFree app, compared against outcomes for patients who expressed wish to quit but declined use of the SmokeFree app (This will be confirmed with CO testing at 12-week follow-up visit).

    12 weeks

Other Outcomes (3)

  • User experience

    12 weeks

  • Attrition rate

    12 weeks

  • Level of engagement with the SmokeFree app

    12 weeks

Study Arms (2)

Intervention Arm

Patients who expressed wish to quit smoking and accept use of the SmokeFree app

Behavioral: Use of SmokeFree app

Control Arm

Patients who expressed wish to quit smoking but declines all support or use of SmokeFree app

Interventions

Intervention Arm

Intervention Arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

The study participant will be recruited from the Acute Assessment Unit and Ambulatory Emergency Care at Chelsea and Westminster Hospital.

You may qualify if:

  • Intervention:
  • ≥ 18 years
  • All new patients admitted via the Acute medical via AAU (or AEC)
  • Current smoker and willing to quit
  • Smartphone owner
  • Fluent in English (verbal and written)
  • Able to give informed consent
  • Able and willing to attend a follow up visit in 12 weeks.
  • Control:

You may not qualify if:

  • \< 18 years
  • Patient refusal

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Chelsea and Westminster Hospital NHS Foundation Trust

London, Lonson, SW10 9NH, United Kingdom

Location

MeSH Terms

Conditions

Smoking CessationSmokingSmoking Reduction

Condition Hierarchy (Ancestors)

Health BehaviorBehavior

Study Design

Study Type
observational
Observational Model
OTHER
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 9, 2021

First Posted

October 26, 2021

Study Start

December 4, 2019

Primary Completion

December 4, 2021

Study Completion

December 4, 2021

Last Updated

October 26, 2021

Record last verified: 2021-10

Locations