Condition category
Nutritional, Metabolic, Endocrine
Date applied
10/02/2005
Date assigned
16/02/2005
Last edited
28/04/2011
Prospective/Retrospective
Retrospectively registered
Overall trial status
Completed
Recruitment status
No longer recruiting

Plain English Summary

Not provided at time of registration

Trial website

Contact information

Type

Scientific

Primary contact

Dr Helen Truby

ORCID ID

Contact details

School of Biomedical and Molecular Sciences
University of Surrey
Guildford
GU2 7XH
United Kingdom

Additional identifiers

EudraCT number

ClinicalTrials.gov number

NCT00327821

Protocol/serial number

N/A

Study information

Scientific title

Acronym

Diet Trials

Study hypothesis

This study is a community-based trial that will concurrently assess four commercial weight loss programmes. In addition to the primary outcome of percentage body fat loss, this study was designed to also examine changes in health risk, for example blood lipids, and psychological effects of these diets. Finally, the study will examine the practical aspects of adherence to the programmes by considering the subjective experiences of the subjects following the different programmes.

Ethics approval

Not provided at time of registration

Study design

Randomised controlled trial

Primary study design

Interventional

Secondary study design

Randomised controlled trial

Trial setting

Not specified

Trial type

Treatment

Patient information sheet

Condition

Obesity

Intervention

1. Weight watchers pure points
2. The Atkins diet
3. The Slimfast meal replacement plan
4. Rosemary Conley diet and fitness plan
5. Control: Non-dieting group

Intervention type

Other

Phase

Not Specified

Drug names

Primary outcome measures

Primary outcome measure was differences in percentage body fat over 6 months

Secondary outcome measures

Not provided at time of registration

Overall trial start date

01/07/2002

Overall trial end date

31/07/2003

Reason abandoned

Eligibility

Participant inclusion criteria

Healthy adults with body mass index (BMI) >27 and <39

Participant type

Patient

Age group

Adult

Gender

Both

Target number of participants

300

Participant exclusion criteria

Not provided at time of registration

Recruitment start date

01/07/2002

Recruitment end date

31/07/2003

Locations

Countries of recruitment

United Kingdom

Trial participating centre

School of Biomedical and Molecular Sciences
Guildford
GU2 7XH
United Kingdom

Sponsor information

Organisation

British Broadcasting Corporation (BBC)

Sponsor details

White City
201 Wood Lane
London
W12 7TS
United Kingdom

Sponsor type

Other

Website

Funders

Funder type

Other

Funder name

British Broadcasting Corporation (BBC)

Alternative name(s)

Funding Body Type

Funding Body Subtype

Location

Results and Publications

Publication and dissemination plan

Not provided at time of registration

Intention to publish date

Participant level data

Not provided at time of registration

Results - basic reporting

Publication summary

1. 2006 initial findings in http://www.ncbi.nlm.nih.gov/pubmed/16720619
2. 2008 results in http://www.ncbi.nlm.nih.gov/pubmed/18764946

Publication citations

  1. Initial findings

    Truby H, Baic S, deLooy A, Fox KR, Livingstone MB, Logan CM, Macdonald IA, Morgan LM, Taylor MA, Millward DJ, Randomised controlled trial of four commercial weight loss programmes in the UK: initial findings from the BBC "diet trials"., BMJ, 2006, 332, 7553, 1309-1314, doi: 10.1136/bmj.38833.411204.80.

  2. Results

    Truby H, Hiscutt R, Herriot AM, Stanley M, Delooy A, Fox KR, Baic S, Robson PJ, Macdonald I, Taylor MA, Ware R, Logan C, Livingstone M, Commercial weight loss diets meet nutrient requirements in free living adults over 8 weeks: a randomised controlled weight loss trial., Nutr J, 2008, 7, 25, doi: 10.1186/1475-2891-7-25.

Additional files

Editorial Notes