NCT07343258

Brief Summary

This pilot study aims to assess the acceptance, feasibility, and added value of follow-up calls at the suicide helpline, Zelfmoordlijn 1813, in Flanders (Belgium). It serves as a crucial preparatory step in the development and implementation process of the callback methodology at Zelfmoordlijn 1813.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
98

participants targeted

Target at P50-P75 for not_applicable

Timeline
5mo left

Started Jan 2026

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress46%
Jan 2026Sep 2026

First Submitted

Initial submission to the registry

November 26, 2025

Completed
1 month until next milestone

Study Start

First participant enrolled

January 5, 2026

Completed
10 days until next milestone

First Posted

Study publicly available on registry

January 15, 2026

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 30, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 30, 2026

Last Updated

February 19, 2026

Status Verified

February 1, 2026

Enrollment Period

9 months

First QC Date

November 26, 2025

Last Update Submit

February 16, 2026

Conditions

Keywords

suicidal ideationsuicide-related copingsuicidal behaviorcrisis line

Outcome Measures

Primary Outcomes (3)

  • Experiences of callers with receiving callbacks from the Zelfmoordlijn 1813

    Qualitative data will be collected through semi-structured telephone interviews with callers who participated in the callback trajectory. The interviews explore acceptance, feasibility, perceived added value and barriers related to the callback methodology.

    Callers will be interviewed 7-14 days after ending their callback trajectory.

  • Experiences of call responders with recruiting callers for follow-up from the Zelfmoordlijn 1813

    Experiences of call responders involved in recruiting callers for the callback trajectory will be examined through focus group discussions. Data will capture perceived facilitators and challenges in the recruitment process at the end of a crisis call to Zelfmoordlijn 1813.

    Call responders will participate in focus groups within 1 month after recruitment has ended.

  • Experiences of callback callers with implementing the callback methodology from the Zelfmoordlijn 1813

    Semi-structured interviews will explore how callback callers experienced delivering the callback methodology, including perceived feasibility, added value, barriers and implementation considerations.

    Callback callers will be interviewed 2-3 weeks after their final callback within the study.

Other Outcomes (2)

  • Socio-demographic variables of callers

    At the moment of enrollment

  • Socio-demographic variables of callers

    At the moment of enrollment

Study Arms (1)

Callers, responders and callback callers involved in callback conversations at Suicide Line 1813

EXPERIMENTAL

The main target group of this research are (acutely) suicidal individuals who contact Zelfmoordlijn 1813 by phone and consent to receive callback conversations followed by an interview to share their experiences. During the pilot study, a number of experienced call responders (i.e., trained volunteers of the Zelfmoordlijn 1813 who offer callers a callback trajectory) and callback callers (i.e., staff members of the CPZ who conduct the callback conversations) apply the callback methodology developed by the CPZ. Call responders and callback callers will also be interviewed to provide further insights into the callback methodology.

Other: Callbacks from the Zelfmoordlijn 1813

Interventions

Callers of Zelfmoordlijn 1813 are called back after their initial conversation, in which they themselves contacted the Zelfmoordlijn 1813. The callbacks focus on crisis management at the Zelfmoordlijn 1813 and are not intended as a form of formal support. During the callback calls, the specific needs of the caller are addressed, tailored to the callback profile assigned by a call responder based on the initial call. There are three different callback profiles for callers: (1) those for whom the crisis call immediately focuses on creating safety, with the callback calls further reinforcing this safety, (2) those for whom the focus is on crisis management, with follow-up aimed at developing and implementing a Safety Plan, and (3) those who experience barriers to discussing their suicidal thoughts, with the callback conversations being used to facilitate the step towards professional help or to make suicide discussable within their own network or existing support services.

Callers, responders and callback callers involved in callback conversations at Suicide Line 1813

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • The caller is 18 years or older.
  • The caller speaks Dutch.
  • The caller calls the Zelfmoordlijn 1813 for themselves due to suicidal ideation.
  • The caller must benefit from callback conversations fitting one of the three callback profiles.
  • The caller is not a frequent caller to the Zelfmoordlijn 1813.
  • The caller can be called back directly on a personal device.
  • The caller is legally competent, meaning they can oversee the potential consequences of participation, such as time investment and availability.
  • At the time of recruitment, the caller is not receiving support within a care trajectory where attention is paid to their suicidality. Or the care provider is not available quickly enough (e.g., due to maternity leave) if the caller falls within the callback profile focusing on a safety conversation.

You may not qualify if:

  • The caller is younger than 18 years.
  • The caller does not speak Dutch.
  • The caller does not call the Zelfmoordlijn 1813 for themselves.
  • The caller is a frequent caller to the Zelfmoordlijn 1813.
  • The call responder assesses that urgent medical help is necessary.
  • The caller expresses a homocide threat during the original conversation to the Zelfmoordlijn 1813.
  • The caller cannot be called back on a personal device (e.g., persons in detention).
  • The caller is not legally competent to oversee the consequences of participation (e.g., under the influence of alcohol and/or drugs).
  • At the time of recruitment, the caller is receiving support within a care trajectory where attention is paid to their suicidality.
  • Call responders The CPZ chooses to recruit call responders who have extensive experience in answering calls at the Zelfmoordlijn 1813. Therefore, not all call responders of the Zelfmoordlijn 1813 are trained to recruit callers.
  • Callback callers The staff members of the CPZ who are involved in developing and implementing the callback methodology will also participate in the research by means of an interview.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Flemish Centre of Expertise in Suicide Prevention, Ghent University

Ghent, 9000, Belgium

RECRUITING

MeSH Terms

Conditions

SuicideSuicidal IdeationBehavior

Condition Hierarchy (Ancestors)

Self-Injurious BehaviorBehavioral Symptoms

Study Officials

  • Gwendolyn Portzky, PhD

    University Ghent

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Lore Bellaert, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
PREVENTION
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 26, 2025

First Posted

January 15, 2026

Study Start

January 5, 2026

Primary Completion (Estimated)

September 30, 2026

Study Completion (Estimated)

September 30, 2026

Last Updated

February 19, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations