d-CANN: Validation of an international inventory to measure cannabis use in German-speaking countries

d-CANN: Validation of an international inventory to measure cannabis use in German-speaking countries - d-CANN

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

DRKS

Registry ID

DRKS00032404

Enrollment

700

Registered

2023-08-01

Start date

2023-10-06

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

substance induced psychotic disorder (F1x.5) F21 F22 F23 F25 F28 F29 F30.2 F31.2 F31.5 F20

Interventions

Group 1: Group 1 non-clinical cohort: With a target number of n=350 cases psychotherapists in training will be contacted via e-mail distribution lists of training institutes. Likewise distribution lis

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Cannabis use / lifetime - Sufficient language skills (German, min. A2)

Exclusion criteria

Exclusion criteria: - Refusal to participate

Design outcomes

Primary

Measure	Time frame
- Factor analysis - Reliability - Validity	—

Secondary

Measure	Time frame
- Factor analysis, reliability, validity in the clinical cohort - Design of a short version with 8 items	—

Countries

Germany

Contacts

Public ContactAnna Willert

Klinik für Psychiatrie und Psychotherapie Charité Universitätsmedizin Berlin

anna.willert@charite.de0049130226001

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026