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Smoking CessationNCT03206619

A Health Recommeder System to Tailor Message Preferences in a Smoking Cessation Programme

An observational study of Smoking Cessation and Health Behavior, run by University of Seville at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Patients attending the smoking cessation programme at the Virgen del Rocío University Hospital under the SoLoMo clinical trial of the SmokeFreeBrain project and provided with the SoLoMo mobile app will be observed for one year. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Social, Local and Mobile
How many people
120 participants
Where
1 siteSpain
Study dates
Sep 2016to 31 Oct 2018
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Adult smokers living in Seville (Spain)

Who may be able to join

  • Patients must be taken from the the smoking cessation unit of the Virgen del Rocio University Hospital (Seville, Spain)
  • Patients must be willing to start the treatment to quit smoking
  • Patients must own an Android smartphone and be able to interact with it
  • Patients must be willing to and install the "Libre de Humos" smoking cessation app recommended by the doctor in the SmokeFreeBrain study.
  • Patients must sign an informed consent

Who cannot join

  • Patients have known previous adverse effects on the pharmacological treatment included in the study (Bupropion \& Varenicline)

Trial locations and contacts

1 site in 1 country.

Spain1 site
  • Virgen del Rocío University Hospital

    Seville, 41013

Other trials in Spain

About this study

Official title: Study on Patient Acceptance and Engagement of Timely Tailored Motivational Messages Sent by a Health Recommender System and Delivered Via a Mobile App for Smoking Cessation

Patients attending the smoking cessation programme at the Virgen del Rocío University Hospital under the SoLoMo clinical trial of the SmokeFreeBrain project and provided with the SoLoMo mobile app will be observed for one year. This mobile app which sends the patients tailored health motivational messages selected by a health recommender system, and based on their user profile retrieved from an electronic health record. Patients' messages feedback and interactions with the app will be analyzed and evaluated following an observational prospective methodology to see whether patients like the messages, and measure the patient engagement with the health recommender system.

Being tested
Social, Local and Mobile
Keywords
smoking, habit, preference, behavior, tailoring, cessation, engagement, digital, mobile app, recommender system
Medical subject headings
Smoking Cessation, Health Behavior, Tobacco Smoking, Smoking, Habits, Behavior

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Social, Local and MobileOther

    Also called SoLoMo

    Patients in a smoking cessation program will use a mobile application to receive messages and rate them from their smartphones. The messages patient will receive belong to one of the following five topics: general motivation, diet tips, physical exercise tips, personal performance, and the benefits of being a non-smoker. For each one of these topics, there will be a pool of 150 different messages with tailored information for the patient. Topics and messages were approved by a smoking cessation psychologist and a pulmonologist. The selection of the time the messages have to be sent, and the message topic is selected by an health recommender system algorithm based on the patients' user profile (demographic information, message rating information, and app interaction information).

Study groups in NCT03206619
Study groupRoleWhat they receive
Social, Local and MobilePatients having smoking cessation standard care (behavioral and pharmacological therapy) and using the SoLoMo mobile app that sends them motivational messages.
Receives: Other: Social, Local and Mobile

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Objective quality of the health recommender system

    The objective quality of the health recommender system is calculated by measuring its precision. The precision of the health recommender system is the relation between the number of messages patients have rated with positive and/or positive and neutral feedback the first month (baseline), and all subsequent months.

    Measured: Up to 18 months

  2. Subjective quality of the health recommender system

    The subjective quality of the health recommender systems is determined by eighteen questions which will be answered using a 1 to 5 point Likert scale by all patients finishing their smoking cessation programme.

    Measured: Up to 18 months

  3. Engagement at aggregated level - Mobile application rolling retention

    The percentage of users still active N days after installation. This is a ratio of the number of users whose last day of activity is past day N to the number of users who could have been active on day N. This metric will be assessed throughout the observation until its end.

    Measured: Up to 18 months

  4. Engagement at aggregated level - Mobile application session length distribution

    The session length is defined as the length of time between the start of the application event and the end of the application event. The session length determines the engagement as it is relevant to know how much time patients spend in the app per session. This metric will be assessed throughout the observation until its end.

    Measured: Up to 18 months

  5. Engagement at aggregated level - Mobile application usage frequency

    The frequency of use is a measure of how often each unique patient used the app within a given time interval. This metric will be assessed throughout the observation until its end.

    Measured: Up to 18 months

  6. Engagement at aggregated level - Number of sessions per user

    A session is one use of the mobile application by a patient. This begins when the application is launched and ends when the application is terminated. This metric will be assessed throughout the observation

    until its end.

    Measured: Up to 18 months

  7. Engagement at aggregated level - Return rate

    Return rate measures the percentage of patients who return to the app on a specific time after installation. It is measured by cohort group - that is, based on when patients first opened the app. It is calculated as the ratio of the number of users active on a given period to the size of the cohort. This metric will be assessed throughout the observation until its end.

    Measured: Up to 18 months

  8. Engagement at individual level

    Engagement at individual level will be assessed based on the rate of read messages by the patients. This is calculated as the quotient between the messages the patients have read, and the total number of messages the system has sent to the patients. This metric will be assessed throughout the observation until its end.

    Measured: Up to 18 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jul 2017
  2. Study startSep 2016
  3. Primary completion31 Oct 2018
  4. Study completion31 Oct 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
120 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03206619
Sponsor's protocol ID
H2020-681120
Status last verified
Jun 2019
First submitted
7 Feb 2017
Last updated
25 Jun 2019
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: An anonymized subset of the database will be made available 5 years after the completion of the project. This embargo period aims to support a correct IPR management within the SmokeFreeBrain consortium, as well as to guarantee the availability of the dataset to the SmokeFreeBrain researchers in order to leverage the scientific production related to the project outcomes. The database can be shared at the end of the embargo period but specific consent will be required. The informed consent form and the information sheet provided to the participants will inform them regarding this attribute of the data.

Publications

  • Hors-Fraile S, Schneider F, Fernandez-Luque L, Luna-Perejon F, Civit A, Spachos D, Bamidis P, de Vries H. Tailoring motivational health messages for smoking cessation using an mHealth recommender system integrated with an electronic health record: a study protocol. BMC Public Health. 2018 Jun 5;18(1):698. doi: 10.1186/s12889-018-5612-5.

    PubMed 29871595

Questions about this trial

What is this clinical trial studying?

An observational study of Smoking Cessation and Health Behavior, run by University of Seville at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Jun 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Objective quality of the health recommender system (time frame: Up to 18 months). The study lists 8 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03206619, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Jun 2019.

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