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Effectiveness of the "Smoke-Free Class competition" in delaying the onset of smoking in adolescence: a cluster-randomised controlled trial (Germany)

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN27091233
Enrollment
3947
Registered
2007-04-23
Start date
2006-10-15
Completion date
Unknown
Last updated
2015-01-13

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

Conditions

Smoking prevention Mental and Behavioural Disorders Addiction to smoking prevention

Interventions

Since the intervention was planned to take place at the class level, schools were chosen as the unit of randomisation. Experimental schools would provide the SFC, while control schools would provide n

Sponsors

German Cancer Aid (Deutsche Krebshilfe) (Germany)
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1. Students of public schools 2. Age between 11 and 15 (grades 6 to 8) 3. No prior participation at ?Be Smart ? Don't Start? 4. No shutdown of school planned in near future

Exclusion criteria

Exclusion criteria: 1. Students of schools with special pedagogic needs 2. Students from schools currently conducting structured interventions against substance use 3. Missing parental consent

Design outcomes

Primary

MeasureTime frame
1. Knowledge on smoking consequences 2. Attitudes towards smoking 3. Intention to use tobacco 4. Smoking status These will be measured at end of treatment, and at 12 and 18 months follow-up.

Secondary

MeasureTime frame
1. Class climate 2. Bullying These will be measured at end of treatment, and at 12 and 18 months follow-up.

Countries

Germany

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Apr 2, 2026