Lifestyle Intervention in Obese Non-diabetic Adults With a Family History of Diabetes.

Not Applicable

Completed

• Conditions: Type 2 Diabetes; Obesity
• Interventions: Behavioral: 8-month group lifestyle programme

• Registration Number: NCT00993603
• Lead Sponsor: The Royal Bournemouth Hospital

Brief Summary

The aim of this study is to investigate weather gradual weight loss achieved with healthy lifestyle changes influence hormonal factors affecting appetite and blood glucose control in obese people without presence of diabetes.

Detailed Description

Obesity is becoming a growing and significant public health problem. Evidence from various national surveys over the last 25 years show that the prevalence of obesity and overweight in adults in England has increased threefold. There is still no clear evidence available to explain the epidemic levels of obesity. A number of neuro-endocrine factors have a role in the regulation of food intake and in the control of insulin secretion. We are particularly interested in measuring levels of a hormone called Glucagon-like peptide 1 (GLP-1) which is released from the intestine when food is absorbed. This hormone in turn has an influence on the production of insulin and another hormone, glucagons, both of which are involved in controlling blood glucose ('blood sugar') levels and appetite control.

There is some evidence, that obese people with normal blood sugar control show attenuated GLP-1 levels, however the evidence is contradictive and statistical significance is unclear. There is an ample of evidence that in established diabetes GLP-1 levels are attenuated, however it still remains uncertain whether the lower GLP-1 levels contribute to the pathogenesis of the condition or are a consequence of chronic hyperglycaemia or other hormonal and metabolic changes, though the observation that GLP-1 levels are lower in obese subjects suggests the possibility that the former may be the case.

Recently Bournemouth Diabetes and Emdocrine Centre (BDEC) conducted a research trial on effect of weight loss on GLP-1 levels in subjects with new onset type 2 diabetes. After 8 months intensive lifestyle programme average weight loss was 7.8 kg with significant and sustained improvements in clinical and metabolic parameters. Despite this, the GLP-1 levels remained unchanged.

None of the previous studies looked how gradual healthy lifestyle changes with sensible weight loss goals and increased activity levels effect GLP-1 levels in obese non-diabetic population.

Study Timeline

• Study First Submitted: 2009-10-09
• Study First Submitted QC: 2009-10-09
• Study First Posted: 2009-10-12
• Study Start: 2010-09
• Primary Completion: 2012-10
• Study Completion: 2012-10
• Status Verified: 2012-12
• Last Update Submitted: 2012-12-04
• Last Update Posted: 2012-12-05

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 66

Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Lifestyle programme.	8-month group lifestyle programme	8 month lifestyle programme.

Primary Outcome Measures

Name	Time	Method
To estimate the correlation between weight loss over 8 months achieved through a programme of intensive lifestyle management and changes in GLP-1 production over the same period in obese without presence of diabetes but with family history of diabetes.	8 month lifestyle programme

Secondary Outcome Measures

Name	Time	Method
The secondary aim is to examine the changes in weight, cardiovascular risk factors and hormonal regulators of food intake and blood glucose metabolism.	8 months lifestyle programme

Trial Locations

Locations (1)

Royal Bournemouth Hospital; 🇬🇧 Bournemouth, Dorset, United Kingdom