Condition category
Nutritional, Metabolic, Endocrine
Date applied
Date assigned
Last edited
Retrospectively registered
Overall trial status
Recruitment status
No longer recruiting
Publication status
Results overdue

Plain English Summary

Background and study aims
Developing type 2 diabetes is associated with obesity and inactivity, particularly in people who are diagnosed with impaired glucose regulation (IGR), a condition where blood glucose levels are raised above normal but not high enough to warrant a diagnosis of type 2 diabetes. Changes to lifestyle can delay diabetes onset, but achieving effective lifestyle change is difficult. Health coaching might be a flexible and effective way to do this. Health coaching involves a regular series of phone calls between patient and health professional to provide support and encouragement to the patient, and promote healthy behaviours such as healthy diet, physical activity and mobility, rehabilitation, and good mental health. Salford's multidisciplinary diabetes team delivers health coaching (known as Care Call) for people with type 2 diabetes, using health advisors. The service has been adapted to meet the needs of patients with IGR and show promising results. Salford offers an existing telephone only heath coaching service. There is also an enhanced version that makes greater use of web based materials which offers telephone plus web health coaching. This involves a series of short (20 minute) phone calls to patients, once a month over 6 months, with a step down call at 9 months. Patients are able to track progress using a web ‘dashboard’, and communicate with their health coach via the web interface. The aim of the study is to compare the existing telephone only service with the telephone plus web service.

Who can participate?
Adults diagnosed with IGR, referred to the Salford Care Call service (UK), who have access to a phone and home internet.

What does the study involve?
Participants are randomly allocated to either the telephone only or telephone plus web health coaching service. Participants are asked to fill in questionnaires about their condition and the service they receive.

What are the possible benefits and risks of participating?
No clinical benefits, side effects, disadvantages or risks are expected from taking part. However, the information will help to show which health coaching service is preferred by patients and which health coaching service to commission in the future.

Where is the study run from?
The remote health coaching service will be delivered by health trainers from the Salford Diabetes Care Call service (UK).

When is the study starting and how long is it expected to run for?
November 2014 to August 2016

Who is funding the study?
Hitachi (UK)

Who is the main contact?
Dr Peter Coventry

Trial website

Contact information



Primary contact

Dr Peter Coventry


Contact details

Mental Health and Addiction Research Group
Department of Health Sciences
Faculty of Science
Area 4
Room A/RC/205
ARRC Building
University of York
YO10 5DD
United Kingdom

Additional identifiers

EudraCT number number

Protocol/serial number


Study information

Scientific title

Comparison of active treatments for impaired glucose regulation: a Salford Royal Foundation Trust and Hitachi collaboration: a randomised controlled trial



Study hypothesis

Impaired Glucose Regulation (IGR) is the name given to two conditions which can occur called Impaired Glucose Tolerance (IGT) and Impaired Fasting Glycaemia (IFG) where glucose (sugar) is not being processed efficiently in the body. This results in blood glucose levels which are above the normal range. IGR is a form of prediabetes and if no action is taken around half of patients with IGR will go on to develop type 2 diabetes within 5 to 10 years, putting them at increased risk of further health problems. Relatively modest changes to lifestyle factors such as diet and activity can delay the onset of diabetes, and lifestyle change is recommended by the National Institute for Health and Care Excellence (NICE) as critical for effective prevention.

A model of care that has potential to achieve prevention through effective behaviour change is ‘health coaching’. The increasing adoption of telephone and mobile technologies among patients, and the potential to deliver care in ways that are efficient and flexible, has led to significant interest in the potential of health coaching. However, evidence of effectiveness and acceptability is mixed.

This study aims to test acceptability and efficiency of two forms of remote health coaching for people with IGR. The principal questions this study asks are:
1. In adult patients with IGR, is a web based telephone coaching intervention more acceptable than an existing telephone only coaching intervention?
2. Is the delivery of the web based intervention more efficient in terms of direct health costs attributed to delivery than the existing teleohone only service?
3. Do patients randomised to the web based service have broadly equivalent clinical outcomes to patients randomised to the existing telephone only service?

Ethics approval

NRES Committee East of England – Norfolk Research Ethics Committee, 27/03/2015, ref: 15/EE/0117

Study design

Single-centre interventional study

Primary study design


Secondary study design

Randomised controlled trial

Trial setting


Trial type


Patient information sheet

Not available in web format, please use the contact details to request a patient information sheet


Impaired glucose regulation


Participants are randomly allocated to either the telephone only or telephone plus web health coaching service. Participants are asked to fill in questionnaires about their condition and the service they receive.

Intervention type



Drug names

Primary outcome measure

Client Satisfaction Questionnaire (self-reported questionnaire) at baseline and at 9-month follow-up

Secondary outcome measures

Health outcomes:
Change in HbA1c, weight (kg), and BMI (from baseline to follow-up at 9 months), Quality of life (self reported EQ-5D), mental health (Mental Health Inventory-5)

Health experience and self-management:
Summary of Diabetes Self-Care Activities (SDSCA), Patient Activation Measure (PAM)

Direct costs of delivery of intervention

Overall trial start date


Overall trial end date


Reason abandoned (if study stopped)


Participant inclusion criteria

1. IGR confirmed by HbA1c between 42-47 mmol/ml in last 6 months
2. Access to a telephone and home internet

Participant type


Age group




Target number of participants


Participant exclusion criteria

1. They were referred to the face-to-face group IGR education session and do not go onto receive telephone only support
2. They are already diagnosed with type 2 diabetes
3. They have gestational diabetes
4. They are aged less than 18 years old
5. They refuse consent
6. They have no English
7. Their GP considers them incapable of participating (e.g. dementia, learning difficulties, vision or motor skills limitations)

Recruitment start date


Recruitment end date



Countries of recruitment

United Kingdom

Trial participating centre

Centre for Primary Care
Williamson Building
M13 9PL
United Kingdom

Sponsor information


University of Manchester

Sponsor details

Oxford Road
M13 9PL
United Kingdom

Sponsor type




Funder type


Funder name


Alternative name(s)

Hitachi Group

Funding Body Type

private sector organisation

Funding Body Subtype

For-profit companies (industry)



Funder name

NIHR Collaboration for Leadership in Applied Health Research and Care Greater Manchester (CLAHRC)

Alternative name(s)

Funding Body Type

Funding Body Subtype


Results and Publications

Publication and dissemination plan

Analysis of primary and secondary outcomes will be completed in summer 2017 and publication of the main trial analysis is scheduled for Jan-Feb 2018 in an high ranking journal relevant to primary care and diabetes prevention. Analysis of qualitative data will be concurrent with analysis of the quantitative data and publication of qualitative findings is scheduled for March 2018 in a high ranking journal relevant to patient experience of primary care interventions.

IPD sharing plan
The datasets generated during and/or analysed during the current study are/will be available upon request from Dr Peter Coventry. Agreement about accessing participant level data will be made by the principal investigator in conjunction with the funder, Hitachi Europe Ltd.

Intention to publish date


Participant level data

Available on request

Basic results (scientific)

Publication list

2016 protocol in:

Publication citations

Additional files

Editorial Notes

15/03/2017: NIHR Collaboration for Leadership in Applied Health Research and Care Greater Manchester (CLAHRC) was added as a funder. 30/08/2016: Publication reference added. 14/12/2015: The recruitment end date was changed from 30/09/2015 to 01/06/2016. The registration was initiated on 23/04/2015 and finalised on 01/07/2015. The recruitment started on 30/06/2015, after initiation of public registration.