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Can smartphone volunteers beat ambulances to save overdose victims?

NCT ID NCT07079241

Disease control Sponsor: Region Skane Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 explores whether trained volunteers with the overdose-reversal drug naloxone can reach people having an opioid overdose faster than emergency services. About 1,000 volunteers will be alerted via a smartphone app when a suspected overdose is reported. The goal is to see if this approach is feasible, safe, and acceptable to both volunteers and overdose victims.

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 1,000 people

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

Started

Sep 2025

Expected to finish

Aug 2027

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 for volunteer first responder: 1. Give informed written consent to participate in the study 2. Successfully complete an opioid overdose and naloxone course in addition to a first aid course, following current first aid guidelines from the Swedish Resuscitation Council and the European Resuscitation Council. 3. Download and register oneself as a user on the project-specific volunteer first responder app on a smartphone 4. Purchase naloxone from a pharmacy and receive reimbursement for the full cost of the purchase upon submission of the pharmacy receipt Exclusion Criteria for volunteer first responder: 1\. Displaying inappropriate behavior during the education day (or otherwise in time, as witnessed or experienced by course instructors or the project team). Such conduct could for example be to not follow the guidelines of low-arousal (non-confrontational) approach in emergencies. Inclusion Criteria for overdose alerts: 1. Victim being ≥15 years old 2. Any naloxone-responder being up to 10.000 meters from the situation, in Skåne Exclusion Criteria for overdose alerts: 1. Any trauma behind the condition 2. Dispatcher impression of the scene to be unsafe for lay persons

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Conditions

The condition(s) this trial relates to.

Drug Overdose Opiate Overdose acute opioid poisoning prevention target

As listed by the trial registrant

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

Opioid overdose

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

  • Malmö Addiction Center

    RECRUITING

    Malmö, Skåne County, Sweden

More trials for these conditions

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