Exploring the use of a digitally delivered low calorie diet and behaviour change programme on inducing diabetes remission in patients with type 2 diabetes.

ISRCTN ISRCTN73786674
DOI https://doi.org/10.1186/ISRCTN73786674
IRAS number 312269
ClinicalTrials.gov number NCT05647226
Secondary identifying numbers IRAS 312269, CPMS 53983
Submission date
14/12/2022
Registration date
04/01/2023
Last edited
19/06/2024
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
Type 2 diabetes is a common condition that causes the level of sugar (glucose) in the blood to become too high.
Diabetes increases rates of mortality and morbidity as well as quality of life and presents a major and increasing economic burden, currently accounting for 10% of total healthcare expenditure in the UK and 12.5% in the USA. Research has shown that modest weight
loss of approximately 5-10% using diet and lifestyle approaches, can improve all areas of diabetes control including glycaemia, blood pressure, lipids, quality of life and fewer comorbidity complications.
The main aim of this study is to assess whether the Habitual Remission Programme is more likely to lead to weight loss and remission, compared to standard care, measured at 6 months. Remission is defined as HbA1c of less than 6.5% (<48 mmol/mol) at 3 months of not taking any glucose-lowering medication (for at least 2 months).

Who can participate?
Adults with type 2 diabetes diagnosed within the last 6 years and not on insulin.

What does the study involve?
Participants are randomly allocated to the Habitual Programme or standard care. They will take a home blood test for HbA1c at baseline, 3 months and 6 months, and complete online fortnightly surveys to record their weight, waist circumference, blood pressure, side effects and any changes in medication, for 6 months. These measurements will be taken at 6 months, 12 months after finishing the intervention, for those allocated to the intervention.

What are the possible benefits and risks of participating?
Taking part in the trial may help participants better manage their diabetes, and information gathered from this study can be used to improve the management and treatment of type 2 diabetes in the future.
There are a number of side effects associated with Habitual’s Total Diet Replacement product, and stopping antidiabetic medications. Participants will report any potential side effects in fortnightly surveys or directly to the trial team.

Where is the study run from?
GP practices in England, managed by Lindus Health, will recruit for the trial. Research Nurses at Lindus Health will complete screening and informed consent procedures.

When is the study starting and how long is it expected to run for?
March 2022 to July 2024

Who is funding the study?
Habitual Health (UK)

Who is the main contact?
1. Professor Carel Le Roux (scientific contact), carel.leroux@ucd.ie
2. Miss Danni Maas (public contact), danni@lindushealth.com

Contact information

Prof Carol Le Roux
Principal Investigator

University College Dublin
School of Medicine
Conway Institute
Belfield
Dublin
D04 V1W8
Ireland

Phone +353 864117842
Email carel.leroux@ucd.ie
Miss Danni Maas
Public

Lindus Health
Studio A
The Leather Market
Weston Street
London
SE1 3ER
United Kingdom

Phone +44 (0)7852716249
Email danni@lindushealth.com

Study information

Study designMulticentre open-label prospective parallel design randomized study
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)GP practice
Study typeTreatment
Participant information sheet 42904 PIS_ICF v2.1_02Nov2022.pdf
Scientific titleExploring the use of digital therapeutics alongside a remote intensive lifestyle programme on inducing weight loss and diabetes remission in patients with type 2 diabetes versus standard of care.
Study acronymDIGEST
Study objectivesThe primary objective of the trial is to assess whether the Habitual Remission Programme (total diet replacement and digital therapeutic) delivered remotely, leads to remission and weight loss in patients with type 2 diabetes.
Ethics approval(s)Approved 03/11/2022, London Bridge Research Ethics Committee (Health Research Authority, Skipton House, 80 London Road, London, SE1 6LH, UK; +44 (0)207 1048 387; londonbridge.rec@hra.nhs.uk), ref: 22/LO/0664
Health condition(s) or problem(s) studiedRemission in patients with type 2 diabetes
InterventionParticipants will be randomised in a 2:1 ratio to the intervention arm vs control arm by sealed envelope. The intervention is the Habitual Remission Programme, which combines a digital therapeutic with Total Diet Replacement. Total Diet Replacement is required for the first 3 months, consisting of shakes and soups providing 800 kcal per day, and food is then gradually reintroduced for the final 3 months. The Habitual mobile App provides theory-informed behaviour change lessons, and emotional and social support for the entire 6 months.

Those in the control group will continue receiving standard care for patients with type 2 diabetes.
Intervention typeBehavioural
Primary outcome measure1. Weight (kg) at baseline and 6 months
2. HbA1c after at least 2 months off all glucose-lowering medication, measured at 6 months
Secondary outcome measures1. Glycaemic control measured using HbA1c at baseline, 3 and 6 months
2. Weight measured at baseline, 3 and 6 months
3. Waist circumference measured at baseline, 3 and 6 months
4. Systolic blood pressure measured at baseline, 3 and 6 months
5. Diastolic blood pressure measured at baseline, 3 and 6 months
6. Medication use reported by the participant at baseline, 3 and 6 months
7. Evaluation of overall safety of Habitual Remission Programme by the monitoring of the number of i) AEs, ii) SAEs, iii) (S)AEs that constitute Major Adverse Cardiovascular Events and iv) Major Adverse Diabetes Events, for 6 months
8. Intervention adherence measured by the number of participants starting the intervention at baseline compared to those completing the intervention at 3 and 6 months
Overall study start date01/03/2022
Completion date30/07/2024

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit75 Years
SexBoth
Target number of participants100
Total final enrolment100
Key inclusion criteria1. Able and willing to give consent for the study prior to participation
2. Be aged 18 - 75 years, with type 2 diabetes mellitus of duration <6 years
3. Have access to a smartphone or a computer
4. Have a Body Mass Index (BMI) of at least 28 kg/m²
5. A HbA1c test >48 mmol/mol (6.5%) and ≤86 mmol/mol (10%), within the previous 12 months
Key exclusion criteria1. Are currently using insulin
2. Weight change of >5% in the past 3 months
3. Have a history or are known to be suffering with alcohol/substance abuse
4. Have cancer or currently under investigation for cancer
5. Have had a myocardial infarction within the previous 6 months
6. Have severe or unstable heart failure e.g. NYHA grade IV
7. Have porphyria
8. Have learning difficulties
9. Are currently on treatment with anti-obesity drugs
10. Have had bariatric surgery
11. Have been diagnosed with eating disorder or purging
12. Are pregnant or less than 4 months postpartum or considering pregnancy in the next 2 years
13. Are currently breastfeeding
14. Have required hospitalisation for depression or taking antipsychotic drug
15. Have a history of illnesses that could interfere with the interpretation of the study results(e.g. HIV, Cushing syndrome, chronic kidney disease, chronic liver disease, hyperthyroidism, hereditary fructose intolerance, depression or antipsychotic drug use within the past 2 years)
16. Currently taking Glucagon-like peptide-1 receptor agonists (GLP-1 RAs)
17. Have pancreatitis
18. Currently taking part in a CTIMP trial for antidiabetic medication
19. Abnormal diabetic foot review (QOF codes for diabetic foot at moderate risk, at high risk, at increased risk, ulcerated).
Date of first enrolment28/12/2022
Date of final enrolment02/06/2023

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Lindus Health Ltd
Lindus Health
Taper Studios
The Leather Market
London
SE1 3ER
United Kingdom

Sponsor information

Habitual Health Ltd
Industry

Brock House
1.09
London
W1W 6BP
United Kingdom

Phone +44 7833677786
Email ibraithwaite@tryhabitual.com
Website https://www.tryhabitual.com/

Funders

Funder type

Other

Investigator initiated and funded

No information available

Results and Publications

Intention to publish date31/01/2025
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
Publication and dissemination planPlanned publication in a peer-reviewed journal
IPD sharing planThe data-sharing plans for the current study are unknown and will be made available at a later date.

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Participant information sheet version 2.1 02/11/2022 16/12/2022 No Yes
HRA research summary 28/06/2023 No No

Additional files

42904 PIS_ICF v2.1_02Nov2022.pdf

Editorial Notes

19/06/2024: The overall study end date was changed from 30/06/2024 to 30/07/2024.
10/10/2023: The intention to publish date has been changed from 01/10/2023 to 31/01/2025.
22/08/2023: The following changes have been made:
1. The recruitment start date has been changed from 14/12/2022 to 28/12/2022.
2. The recruitment end date has been changed from 14/03/2023 to 02/06/2023.
3. The overall study end date has been changed from 01/01/2024 to 30/06/2024 and the plain English summary updated accordingly.
4. A public contact has been added.
5. The final enrolment number has been added.
01/02/2023: Internal review.
16/12/2022: Trial's existence confirmed by NHS HRA.