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Can a smartphone app stop a suicidal crisis?
NCT ID NCT04775160
First seen Sep 21, 2026 · Last updated Sep 21, 2026
Summary
Researchers are testing whether a smartphone app called SmartSafe can help prevent suicidal thoughts and behavior in people who recently had a suicidal crisis. The app provides a personalized safety plan, check-ins, and coping tools. Participants also receive their usual psychiatric care. The trial compares those who use the app with those who only receive standard care, tracking changes in suicidal ideation over time.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- a smartphone app called SmartSafe that includes a digital safety plan, check-ins, and a mental toolbox
- What this could lead to
- If it works, this could offer a scalable way to support people between therapy sessions and help prevent suicidal crises.
- What could go wrong
- The app may not engage users enough to make a difference, and digital tools cannot replace professional care. This is a single-country trial, so results may not apply everywhere.
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
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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
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About 220 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2022
- Expected to finish
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Dec 2028
An estimate. End dates often move.
- Lead sponsor
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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
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide 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: * Presenting with a SA or an emergency referral for SI in the past month. * Being able to understand and sign the informed consent form. * Being fluent in Spanish * Owning a smartphone with internet access and iOS or Android operating system. Exclusion Criteria: * Refusal to install the mobile application * Inability to understand and sign the informed consent form for any reason. * Institutionalized or incarcerated patients, without access to regular mobile phone use.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
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Hospital Universitario Fundación Jiménez Díaz
RECRUITINGMadrid, 28040, Spain
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