Significance of the Interpersonal Theory of Suicide in an oncological context

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00020477

Enrollment

680

Registered

2020-06-30

Start date

2020-07-09

Completion date

Unknown

Last updated

2026-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C00-C97 R45.8

Interventions

Group 1: The first measurement time includes: - study information, -consent to participate, - multiple questionnaires on the subjects of suicidality (including questionnaires on components of the Int

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Cancer, legal age, legal capacity, German speaking

Exclusion criteria

Exclusion criteria: None

Design outcomes

Primary

Measure	Time frame
Examination of the effect (predictive; regression) and the connection (correlative; correlation) of the components of the Interpersonal Theory of Suicidal Behavior (thwarted belongingness, perceived burdensomeness and acquired capability) on suicidal thoughts and behavior. The primary outcome is recorded at both measurement times (T1 = first online measurement and study consent, T2 = 6 months after T1). The survey is carried out via two online measurements. T1: • Demographic variables and data concerning cancer • INQ (Perceived burdensomeness, thwarted belongingness) • GCSQ (Acquired Capability for Suicide) • HADS (Anxiety and depression in the context of physical illness) • SpREUK – (spirituality) • SBQ-R (suicidality) • SSEV (suicidal ideation and behavior) • CCSS (attitude towards suicide) • KEA-K (emotion-regulation concerning physical illness) • SDES (social rejection/inability to cope with aversive situations) • F-SozU (social support) • PMH (Positive Mental Health) • SWE (self-efficacy) • WHODAS2.0 (Global Functioning) • Fear of one's own dying, Fear of one's own death, Accepting one's own dying and one's own death, Inner rejection of one's own death (FIMEST-E) T2: • changes concerning physical illness (cancer) • SBQ-R (suicidality) • SSEV (suicidal ideation and behavior) • HADS (Anxiety and depression in the context of physical illness) • INQ (Perceived burdensomeness, thwarted belongingness) • GCSQ (Acquired Capability for Suicide)	—

Measure

Time frame

Examination of the effect (predictive; regression) and the connection (correlative; correlation) of the components of the Interpersonal Theory of Suicidal Behavior (thwarted belongingness, perceived burdensomeness and acquired capability) on suicidal thoughts and behavior. The primary outcome is recorded at both measurement times (T1 = first online measurement and study consent, T2 = 6 months after T1). The survey is carried out via two online measurements. T1: • Demographic variables and data concerning cancer • INQ (Perceived burdensomeness, thwarted belongingness) • GCSQ (Acquired Capability for Suicide) • HADS (Anxiety and depression in the context of physical illness) • SpREUK – (spirituality) • SBQ-R (suicidality) • SSEV (suicidal ideation and behavior) • CCSS (attitude towards suicide) • KEA-K (emotion-regulation concerning physical illness) • SDES (social rejection/inability to cope with aversive situations) • F-SozU (social support) • PMH (Positive Mental Health) • SWE (self-efficacy) • WHODAS2.0 (Global Functioning) • Fear of one's own dying, Fear of one's own death, Accepting one's own dying and one's own death, Inner rejection of one's own death (FIMEST-E) T2: • changes concerning physical illness (cancer) • SBQ-R (suicidality) • SSEV (suicidal ideation and behavior) • HADS (Anxiety and depression in the context of physical illness) • INQ (Perceived burdensomeness, thwarted belongingness) • GCSQ (Acquired Capability for Suicide)

—

Secondary

Measure	Time frame
Risk factors for suicidality in cancer patients, determined using general sociodemographic data and specific information on cancer (type, location)	—

Countries

Germany

Contacts

Public ContactJan Christopher Cwik

Lehrstuhl für Klinische Psychologie und Psychotherapie, Humanwissenschaftliche Fakultät, Universität zu Köln

jcwik@uni-koeln.de+49 (0) 221/4703019

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Aug 9, 2026