NCT03570099

Brief 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.

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
2,000

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jun 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 11, 2018

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

June 15, 2018

Completed
11 days until next milestone

First Posted

Study publicly available on registry

June 26, 2018

Completed
2.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2020

Completed
2.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2023

Completed
Last Updated

March 29, 2023

Status Verified

March 1, 2023

Enrollment Period

2.6 years

First QC Date

June 15, 2018

Last Update Submit

March 28, 2023

Conditions

Keywords

opioid overdosemortalitynaloxonesubstance use disorderprevention

Outcome Measures

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.

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

Secondary Outcomes (11)

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

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

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

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

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

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

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

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

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

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

  • +6 more secondary outcomes

Study Arms (2)

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

Naloxone Nasal Spray will be distributed at the addiction centres.

Prospective Naloxone cohort

Historical data will be retrieved from quality registries.

Historical control cohort

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-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.

You may qualify if:

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

You may not qualify if:

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Malmö Addiction Center

Malmo, Sweden

Location

Related Publications (3)

  • Troberg K, Isendahl P, Dahlman D, Hakansson A. Broad-scale overdose education and naloxone distribution- 5-year follow-up of a regional program in Skane County, Sweden. Harm Reduct J. 2025 Jun 5;22(1):97. doi: 10.1186/s12954-025-01255-3.

  • Hakansson A, Alanko Blome M, Isendahl P, Landgren M, Malmqvist U, Troberg K. Distribution of intranasal naloxone to potential opioid overdose bystanders in Sweden: effects on overdose mortality in a full region-wide study. BMJ Open. 2024 Jan 3;14(1):e074152. doi: 10.1136/bmjopen-2023-074152.

  • 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.

MeSH Terms

Conditions

Opioid-Related DisordersOpiate OverdoseSubstance-Related Disorders

Condition Hierarchy (Ancestors)

Narcotic-Related DisordersChemically-Induced DisordersMental DisordersDrug OverdosePrescription Drug MisuseDrug Misuse

Study Officials

  • Ulf Malmqvist, MD, PhD

    Region Skåne

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
36 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 15, 2018

First Posted

June 26, 2018

Study Start

June 11, 2018

Primary Completion

December 31, 2020

Study Completion

July 1, 2023

Last Updated

March 29, 2023

Record last verified: 2023-03

Data Sharing

IPD Sharing
Will not share

Locations