Evaluation of the intervention “Cannabis – quo vadis?” with the aim of preventing cannabis use in adolescence

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00025441

Enrollment

5090

Registered

2021-05-28

Start date

2021-09-01

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

Healthy participants Cannabis use in adolescence

Interventions

Group 1: Participation in a 120 minute interactive prevention session “Cannabis – quo vadis?” in the classroom, Pre- and post-assessment and follow-up (12 months after the baseline assessment) Group 2

three assessments, parallel to the intervention arm 1.

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Students in grade 8 or 9

Exclusion criteria

Exclusion criteria: Students in grade 9

Design outcomes

Primary

Measure	Time frame
Cannabis use, assessed at each wave by self reported lifetime use, frequency and intensity of use, assessed in a questionnaire	—

Secondary

Measure	Time frame
Knowledge about cannabis, attitudes towards the use of cannabis, behavioral intentions to use cannabis	—

Countries

Germany

Contacts

Public ContactReiner Hanewinkel

Institut für Therapie- und Gesundheitsforschung IFT-Nord gGmbH

hanewinkel@ift-nord.de0431-5702920

Outcome results

None listed

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