RecruitingClinical trialPilot Study on Follow-Up of (Acutely) Suicidal Individuals From the Flemish Suicide HelplineThis 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.