The Impact of an Investment Based Intervention on Weight-loss and Beliefs About Food in Patients Post Bariatric Surgery

March 1, 2016 updated by: University of Surrey

The Impact of an Investment Based Intervention on Weight-loss and Beliefs About Food in Patients Post Bariatric Surgery.

Although obesity surgery is currently the most effective method for achieving weight loss, not all patients lose the desired amount of weight and some show weight regain. Previous pilot work by the lead researcher shows that successful weight loss is associated with the amount of investment the patient feels that they have made in their operation. For example, those who feel that it has taken more time and effort to organise, has cost more money, has been more disruptive to their family, social and work lives and has caused pain are more likely to lose weight after their operation. Therefore, it seems as if the greater the sense of investment, the greater the motivation to make the operation a success. The present study aims to build on these findings by encouraging weight loss surgery patients to focus on the investment they have made, thus making their investment more salient to them. Using a trial design, half the patients will be asked to rate and describe the investment they have made in their operation just before surgery (focusing on the time and effort to organise the surgery etc) and 3 months after surgery (focusing on time off work for recovery, disruption of family and friends, pain of surgery, pain of having the stitches removed etc). All patients will record their weight, beliefs about food, intentions to change their behaviour and actual eating and exercise behaviour at baseline then 3, 6 and 12 months follow up. The impact of the investment based intervention will then be assessed to explore whether focusing on the investment involved in having surgery improves patient health outcomes by one year.

Study Overview

Status

Unknown

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

212

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • aged 18 or over
  • having bariatric surgery at University College Hospital

Exclusion Criteria:

  • if the patient does not understand English
  • if the patient does not consent to take part in the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Investment intervention
Those in the investment group will complete carefully framed questions designed to raise the salience of the investment they have made in their procedure at baseline and 3 months follow up. The content of this intervention will be tailored to the recent experiences of the patient (ie pre or post surgery).
Behavioral: Investment intervention
Those in the investment group will complete carefully framed questions designed to raise the salience of the investment they have made in their procedure at baseline and 3 months follow up. The content of this intervention will be tailored to the recent experiences of the patient (ie pre or post surgery).
No Intervention: Control
Those in the control group will receive usual care.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in weight
Time Frame: 12 months follow up.
Excess weight loss at 12 months after bariatric surgery.
12 months follow up.

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in psychological outcomes
Time Frame: 12 month follow up
Psychological issues relating to beliefs about food, intentions to change diet and exercise and actual diet and exercise behaviours.
12 month follow up

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Surrey

Collaborators

University College London Hospitals

Investigators

  • Principal Investigator: Jane Ogden, PhD, University of Surrey

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2013

Primary Completion (Anticipated)

March 1, 2016

Study Completion (Anticipated)

March 1, 2016

Study Registration Dates

First Submitted

December 2, 2013

First Submitted That Met QC Criteria

January 23, 2014

First Posted (Estimate)

January 27, 2014

Study Record Updates

Last Update Posted (Estimate)

March 2, 2016

Last Update Submitted That Met QC Criteria

March 1, 2016

Last Verified

March 1, 2016

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PB-PG-0212-27034

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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