NCT03702465

Brief Summary

This study will determine if DNA-based dietary guidelines can improve glucose regulation in pre-diabetic individuals significantly more than standard dietary guidelines following 6 weeks of the intervention. This will be assessed using an oral glucose tolerance test, which is a standard clinical measurement used to assess impaired glucose regulation. Pre-diabetic individuals will be recruited by offering the opportunity to self-assess their risk score for type 2 diabetes using the Leicester Risk Score Questionnaire on the Diabetes United Kingdom website, and they can contact the clinical trial team if they are interested in participating in the trial. They will then be invited for a point of care Hba1c test to determine their suitability for the trial. The point of care Hba1c test is a simple finger prick test to assess glucose regulation. The potential for lifestyle interventions to reduce the progression to type 2 diabetes from pre-diabetic states has been demonstrated in a number of randomised control trials (RCTs) in different countries, with a meta-analysis of RCTs suggesting that lifestyle intervention in high risk subjects can halve the incidence of diabetes. However, they have been expensive and labour intensive, with multiple personal contacts. Furthermore, DNA based dietary advice has shown a greater improvement in fasting glucose measurements in obese individuals compared to standard dietary advice, with the BMI (body mass index) only showing a long-term improvement in the group that received DNA-based dietary advice. The proposed study may be able to show that increased benefits can be obtained by following a DNA-based diet compared to standard dietary advice for individuals with pre-diabetes. Furthermore, the exploratory arm of the study will receive the advice via an app (provided by DnaNudge Ltd), which if effective, would demonstrate a low-cost, widely-distributable method that could be deployed to the general public without requiring individuals to self-identify as pre-diabetic to receive an intervention.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
180

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2018

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

October 5, 2018

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 11, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

November 26, 2018

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 10, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2022

Completed
Last Updated

December 1, 2022

Status Verified

November 1, 2022

Enrollment Period

3.9 years

First QC Date

October 5, 2018

Last Update Submit

November 30, 2022

Conditions

Keywords

Type 2 DiabetesDNA-based dietApp

Outcome Measures

Primary Outcomes (1)

  • Difference in glucose regulation between the control and intervention arm

    Difference in 0 minutes glucose on 75g oral glucose tolerance test between the control arm and the intervention arm.

    6 weeks

Secondary Outcomes (26)

  • 120 minutes glucose on 75g oral glucose tolerance test

    6, 12 and 26 weeks

  • 0 minutes glucose on 75g oral glucose tolerance test

    6, 12 and 26 weeks

  • Concentration of glycated haemoglobin in blood

    12 and 26 weeks

  • Weight

    6, 12 and 26 weeks

  • BMI

    6, 12 and 26 weeks

  • +21 more secondary outcomes

Study Arms (3)

Control Arm

ACTIVE COMPARATOR

Pre-diabetic participants will receive general health guidelines according to the NICE guidelines, as per standard care. These will be delivered via an initial consultation with a dietitian. Participants in the control group will receive 2 follow up phone calls from the dietitian to answer any questions they may have during the study.

Other: Control arm

Intervention Arm

ACTIVE COMPARATOR

DNA-based dietary intervention: participants will receive DNA-based health guidelines via a genetic report. These will be delivered via an initial consultation with a dietitian. Participants in the control group will receive 2 follow up phone calls from the dietitian to answer any questions they may have during the study.

Other: DNA-based dietary intervention

Exploratory Arm

EXPERIMENTAL

DNA-based dietary intervention using an app: participants will receive DNA-based health guidelines via the DnaNudge App.

Other: DNA-based dietary intervention using an app

Interventions

The DNA for all arms of the study will be analysed for pre-determined single nucleotide polymorphisms (SNPs) relevant to metabolism. Participants in the intervention arm, will be provided with a hard-copy of a genetic report, which will explain how their SNPs influence their dietary habits.

Intervention Arm

The DNA for all arms of the study will be analysed for pre-determined single nucleotide polymorphisms (SNPs) relevant to metabolism. Participants in the exploratory arm, will be given personalised DNA-based dietary advice via the DnaNudge App.

Exploratory Arm

Standard care for pre-diabetic individuals: dietary advice as per the NICE guidelines for individuals who have pre-diabetes.

Control Arm

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Provision of signed and dated informed consent form
  • Adults over 18 years of age
  • Impaired glucose regulation including impaired fasting glucose (IFG) and impaired glucose tolerance (IGT) by fasting glucose, oral glucose tolerance test (OGTT) or HbA1c criteria
  • Access to smart phone with an operating system of iOS 8.0 or above, or Android 4.0 or above.

You may not qualify if:

  • Diabetic
  • Pregnant or planning pregnancy
  • Breastfeeding
  • Enrolled in other clinical trials
  • Have active malignancy or under investigation for malignancy
  • Severe visual impairment
  • Reduced manual dexterity
  • Use of psychiatric, anti-diabetic, and/or weight loss medication, and/or oral steroids
  • Bariatric surgery
  • 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, alcohol or substance abuse)
  • Unable to participate due to other factors, as assessed by the Chief Investigator

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Imperial Clinical Research Facility

London, W12 0HS, United Kingdom

Location

Related Publications (1)

  • Karvela M, Golden CT, Bell N, Martin-Li S, Bedzo-Nutakor J, Bosnic N, DeBeaudrap P, de Mateo-Lopez S, Alajrami A, Qin Y, Eze M, Hon TK, Simon-Sanchez J, Sahoo R, Pearson-Stuttard J, Soon-Shiong P, Toumazou C, Oliver N. Assessment of the impact of a personalised nutrition intervention in impaired glucose regulation over 26 weeks: a randomised controlled trial. Sci Rep. 2024 Mar 5;14(1):5428. doi: 10.1038/s41598-024-55105-6.

Related Links

MeSH Terms

Conditions

Glucose IntoleranceDiabetes Mellitus, Type 2Alzheimer Disease

Condition Hierarchy (Ancestors)

HyperglycemiaGlucose Metabolism DisordersMetabolic DiseasesNutritional and Metabolic DiseasesDiabetes MellitusEndocrine System DiseasesDementiaBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesTauopathiesNeurodegenerative DiseasesNeurocognitive DisordersMental Disorders

Study Officials

  • Nick Oliver, M. D.

    Imperial College Healthcare NHS Trust

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Parallel assignment with an active control
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 5, 2018

First Posted

October 11, 2018

Study Start

November 26, 2018

Primary Completion

October 10, 2022

Study Completion

November 30, 2022

Last Updated

December 1, 2022

Record last verified: 2022-11

Data Sharing

IPD Sharing
Will not share

Locations