CClinicalTrials.gg
Status unknownNCT03570099Updated Mar 29, 2023

Naloxone Treatment in Skåne County - Effect on Drug-related Mortality and Overdose-related Complications

An observational study in Opioid Abuse, sponsored by Region Skane. Status unknown at 1 site in Sweden. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-03-29.

Sponsored by Region Skane · Observational

The sponsor has not verified this record recently (last verified Mar 2023), so the status shown — last known as Active, not recruiting — may be out of date.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
2,000
Ages
18 Years and older
Sex
All
01

Study summary

Death in overdose is the single most common cause of death in people using heroin. In Sweden, the number of drug-related overdose deaths has increased gradually since the early 1990s. The purpose of the study is to investigate the effects of a Naloxone distribution program in Skåne County. The primary issue is whether the project had an effect on overdose mortality and overdose related injuries.

02

Conditions studied

  • Opioid Abuse

Keywords

  • opioid overdose
  • mortality
  • naloxone
  • substance use disorder
  • prevention
03

In context

Drug Overdose

139 studies on the registry are indexed under Drug Overdose; 24 are open to participants now.

This study's planned enrollment of 2,000 is above the median of 175 across 38 observational studies indexed under Drug Overdose.

Browse Drug Overdose studies →

Lead sponsor

Region Skane is the lead sponsor of 372 studies on the registry; 113 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

The study population consists of subjects treated at the Addiction centres of Skåne County. Naloxone Nasal Spray will be handed out to these subjects, who must be able to understand the given information about the use of the drug.

Inclusion criteria

  • subjects treated at the Addiction centres of Skåne County
  • signed informed consent

Exclusion criteria

Exclusion Criteria:

  • subjects unable to understand study information due to psychiatric co-morbidity or severe language difficulties
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
2,000 participants (estimated)
Target follow-up
36 Months
Patient registry
Yes

Groups and cohorts

  • Prospective Naloxone cohort

    The prospective cohort consists of study subjects receiving Naloxone nasal spray in the distribution program.

    Drug: Naloxone Nasal Spray

  • Historical control cohort

    Data from the historical control cohort will be collected from national registries years 2013-2017.

    Other: Historical control cohort

Interventions

  • DrugNaloxone Nasal Spray

    Naloxone Nasal Spray will be distributed at the addiction centres.

  • OtherHistorical control cohort

    Historical data will be retrieved from quality registries.

06

What researchers measure

Primary outcomes

  1. Overdose mortality in the general population

    Overdose mortality deaths 2019-2023 to be compared with historical overdose mortality during 2013-2017. Number of deaths will be collected from national registries.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

Secondary outcomes

  1. Reaction level of ambulance-attended opioid overdose survivors in the general population

    Assessment of responsiveness in acute brain disorders using Reaction Level Scale (RLS-85) in ambulance. The RLS scale is graded from 1 (awake, no delayed reaction, oriented) to grade 8 (unconscious, no movements to painful stimuli).

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  2. Respiratory rate of ambulance-attended opioid overdose survivors in the general population

    Respiratory rate (breaths per minute) registered in ambulance.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  3. Heart rate of ambulance-attended opioid overdose survivors in the general population

    Heart rate (beats per minute) of opioid overdose survivors registered in ambulance.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  4. Naloxone or other antidot administered by ambulance staff to ambulance-attended opioid overdose survivors in the general population

    Naloxone or other antidot, if needed, administered by ambulance staff in opioid overdose survivors.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  5. Need of ambulance transport to hospital of ambulance-attended opioid overdose survivors in the general population

    The need to transport the opioid overdose survivors to hospital - information registered in ambulance.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  6. Incidence of opioid overdoses attended by ambulance or emergency hospital care

    Incidence of opioid overdoses attended by ambulance or emergency hospital care, information registered in ambulance or emergency hospital care.

    Time frame: 5 years (first outcome measure for the 18-month intervention period July 1, 2019 - Dec 31, 2020)

  7. All cause mortality in included patients

    Number of deaths will be collected from national and regional registries.

    Time frame: 3 years

  8. Overdose mortality in included patients

    Overdose mortality in included patients. Number of deaths will be collected from national and regional registries.

    Time frame: 3 years

  9. Retention in naloxone program

    Retention in naloxone program - number of patients.

    Time frame: 3 years

  10. Incidence of witnessing opioid overdoses

    Number of incidences of witnessing opioid overdoses.

    Time frame: 3 years

  11. Incidence in naloxone use and bystander CPR

    Number of incidences of naloxone use and bystander CPR.

    Time frame: 3 years

07

Study locations

1 site
  • Malmö Addiction Center
    Malmö, Sweden
08

References and documents

Publications

  • Troberg K, Isendahl P, Blome MA, Dahlman D, Hakansson A. Protocol for a multi-site study of the effects of overdose prevention education with naloxone distribution program in Skane County, Sweden. BMC Psychiatry. 2020 Feb 7;20(1):49. doi: 10.1186/s12888-020-2470-3. PubMed 32028921 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 29, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03570099
Lead sponsor
Region Skane
Responsible party
Sponsor
First posted
Jun 26, 2018
Start date
Jun 11, 2018
Primary completion
Dec 31, 2020
Completion
Jul 1, 2023 (estimated)
Last update
Mar 29, 2023

Study contacts

Ulf Malmqvist, MD, PhD
study director · Region Skåne

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Mar 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion