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Note: This record shows only the 20 elements of the WHO Trial Registration Data Set. To view changes that have been made to the source record, or for additional information about this trial, click on the URL below to go to the source record in the primary register.
Register: Netherlands Trial Register
Last refreshed on: 27 May 2013
Main ID:  NTR960
Date of registration: 20/04/2007
Primary sponsor: Trimbos-institute - Netherlands Institute of Mental Health and Addiction
Public title: Drinking Less, Self help for Problem Drinking: randomised clinical trial.
Scientific title: Self help for Problem Drinking: pragmatic randomised clinical trial. - N/A
Date of first enrolment: 1/6/2001
Target sample size: 175
Recruitment status: complete
URL:  http://www.trialregister.nl/trialreg/admin/rctview.asp?TC=960
Study type:  intervention
Study design:  Randomised: Yes; Masking: None; Control: Active; Group: Parallel; Type: 2 or more arms, randomized  
Countries of recruitment
The Netherlands
Contacts
Name: H.  Riper
Address:  Trimbos-instituut, P.O. Box 725 , Da Costakade 45 3500 AS Utrecht The Netherlands
Telephone: +31 (0)30 2971100
Email: hriper@trimbos.nl
Affiliation: 
Name: H.  Riper
Address:  Trimbos-instituut, P.O. Box 725 , Da Costakade 45 3500 AS Utrecht The Netherlands
Telephone: +31 (0)30 2971100
Email: hriper@trimbos.nl
Affiliation: 
Key inclusion & exclusion criteria
Inclusion criteria: 1. a. Men drinking either more than 21 units per week (excessive drinking) or more than 6 units at least one day per week for the past three months (hazardous drinking);

b. Women drinking over 14 units a week or more than 4 units at least one day a week for the past three months. One unit represents 10 g of ethanol;

2. Age 18 to 65;

3. Given informed consent.

Exclusion criteria: 1. Receiving professional help for problem drinking in the 12 months period before the start of the study;

2. Not available for follow up;

3. Participation in a study with a conflicting interest.


Age minimum:
Age maximum:
Gender:
Health Condition(s) or Problem(s) studied
Alcohol abuse, Cognitive behavior therapy, Self help, Problem drinking

Intervention(s)
Experimental condition:

The self help book ?How to moderate your drinking?? (Hoe minder te drinken; Van Emst 1997)? This self help book is based on cognitive behavioural and self control principles. The book aims to support problem drinkers in their effort to decrease their alcohol consumption. The booklet consists of information on sensible and risky drinking patterns, alcohol monitoring diary and tips and exercises for maintaining reduced alcohol consumption and coping with relapse. The recommended treatment period is 6 weeks.




Control condition:

A psycho-educational brochure on the effects of alcohol use.
Primary Outcome(s)
Problem drinking, defined as alcohol consumption exceeding the guideline ? 21 or 14 standard units (m/f) average per week or 6 or 4 units (m/f) at least one day per week over the previous three months.



Secondary Outcome(s)
Mean weekly alcohol consumption in terms of a continuous measure over the past three months.
Secondary ID(s)
Source(s) of Monetary Support
Ministery of Health and Social Affairs
Secondary Sponsor(s)
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