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Can an app help you quit smoking? new study tests best support level

NCT ID NCT06900985

Symptom relief Sponsor: University of Santiago de Compostela Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a smoking cessation program that combines a smartphone app with support from a psychologist. 429 adult smokers who want to quit will be placed into one of three groups: eight sessions with a psychologist plus the app, four sessions plus the app, or the app alone. The goal is to see which level of support helps people stop smoking the most.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 429 people

The number the study aims to enrol. It can still change while the study runs.

Expected to start

Sep 2026

An estimate. Start dates often move.

Expected to finish

Apr 2028

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * aged 18 or over * wishing to participate in the treatment * providing written informed consent * smoking at least 5 cigarettes per day * completion of all pre-treatment assessment questionnaires * having a valid email address * having an Android or iOS smartphone and being willing to use it throughout the treatment Exclusion Criteria: * a diagnosis of severe mental disorder (bipolar disorder and/or psychotic disorder) * concurrent substance use disorder (alcohol, cannabis, stimulant, hallucinogen and/or opioid) * using other tobacco products (electronic cigarette with nicotine, cigars or cigarillos) * having completed an effective psychological treatment to quit smoking during the previous year * having completed a pharmacological treatment to quit smoking in the last year (any smoking cessation medication approved by the Agencia Española del Medicamento) * having a physical pathology involving high vital risk that requires immediate intervention (e.g., recent myocardial infarction) * having visual difficulties that prevent the use of the App.

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Conditions

The condition(s) this trial relates to.

nicotine dependence Smoking

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Smoking behaviors

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Smoking Cessation and Addictive Disorders Unit

    Santiago de Compostela, A Coruña, 15885, Spain

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Other studies related to the condition(s) this trial covers.