Pre-diabetes Clinical Trial
— BETAOfficial title:
Broccoli Effect on Glycated Haemoglobin (HbA1c) - BETA Study, A Randomised Double-blinded Crossover Study
Verified date | May 2024 |
Source | Quadram Institute Bioscience |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Broccoli has shown to normalise elevated blood sugars when eaten over long period of time. Individuals with pre-diabetes have higher than normal blood sugar levels. In this study, investigators are trying to understand how broccoli, when eaten as a soup, affects blood sugar levels in individuals with pre-diabetes.
Status | Enrolling by invitation |
Enrollment | 35 |
Est. completion date | December 2025 |
Est. primary completion date | April 2025 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: - Individuals with prediabetes (confirmed through screening) - Aged 18 and older. - Body Mass Index (BMI) between 18.5 - 35 kg/m2. - Living within 40 miles from the Norwich Research Park. Exclusion Criteria: The participant will not be able to take part if they('re): - Screening test results indicate they are not suitable to take part in this study such as HbA1c level at screening visit of < 42 mmol/mol (healthy) and > 47 mmol/mol (diabetes) and BMI at screening visit < 18.5 kg/m2 (underweight) and > 35 kg/m2 (extremely obese). - Have a known allergy to any of the components (broccoli, courgette, milk, lactose, or gluten) of the test soups. - Have been diagnosed or have a history of blood or clotting disorders such as anaemia or thrombosis. - Have been treated for heart disease, cancer, or diabetes. - Are immunocompromised due to medications or viral infection such human immunodeficiency virus (HIV). - Have low or high blood pressure with hypertension medication (=90/60, =160/100 respectively would be classed as abnormal). - Have any acute or chronic illnesses that affects the outcome of the study such as a gastrointestinal disorder. This will be assessed on a case by case basis by QI medical advisor. - Plan to become pregnant during the study duration, pregnant or breastfeeding. - Frequently take medications that may interfere with sugar metabolism or absorption such as laxatives, steroids, dietary supplements, or anti-inflammatory medications. This will be assessed on a case by case basis by QI medical advisor. - Drink more than 14 alcohol units/week. - Smoke socially or on occasion more than 12.5 grams or 20 cigarettes/week - Vegan or any dietary restrictions that prevent the consumption of study soups or follow a diet programme which requires fasting for multiple days. - Are a registered blood donor and have donated a large quantity of blood within the last 16 weeks. Registered blood donors should abstain from blood donations for the duration of the study. - Are unable to give written or verbal informed consent - Unable to provide GP contact details. - Are participating in another dietary intervention study nor given blood in another dietary study in the last 3 months. - Are related to or living with any member of the study team or part of the management/supervisory structure of the Chief Investigator. - Have symptoms of COVID-19, been asked to self-isolate, or have been diagnosed with COVID-19 in the last 14 days. |
Country | Name | City | State |
---|---|---|---|
United Kingdom | Quadram Institute Bioscience | Norwich |
Lead Sponsor | Collaborator |
---|---|
Quadram Institute Bioscience | Norfolk and Norwich University Hospitals NHS Foundation Trust |
United Kingdom,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in glycated haemoglobin (HbA1c) after broccoli and courgette soup interventions | Comparison of fasting blood for HbA1c at baseline and after soup interventions | Week: 0, 12, 24 and 36. | |
Secondary | Change in postprandial capillary glucose concentration | Capillary glucose concentration will be measured by finger prick after administration of a glucose challenge using a standardized 75g glucose beverage (GlucosePro). Measurements will be taken -15, -10, -5, 15, 30, 45, 60, 90, 120, 150, 180, 210 min post glucose beverage at Week: 0, 12, 24 and 36. | 3.5 hours | |
Secondary | Change in fasting plasma glucose (mmol/l) after broccoli and courgette soup interventions | Comparison of fasting plasma glucose between baseline and at 12 weeks and washout (24 weeks) and 36 weeks. | Week: 0 to12 and 24 to 36. | |
Secondary | Change in fasting plasma insulin (mmol/L) after broccoli and courgette soup interventions | Comparison of fasting plasma insulin between baseline and at 12 weeks and washout (24 weeks) and 36 weeks. | Week: 0 to12 and 24 to 36. | |
Secondary | Change in fasting serum fructosamine (µmol/L) after broccoli and courgette soup interventions | Comparison of fasting serum fructosamine between baseline and at 12 weeks as well as washout (24 weeks) and 36 weeks. | Week: 0 to12 and 24 to 36. | |
Secondary | Change in fasting serum cholesterol (mmol/L) after broccoli and courgette soup interventions | Comparison of fasting serum cholesterol between baseline and at 12 weeks as well as washout (24 weeks) and 36 weeks. | Week: 0 to12 and 24 to 36. | |
Secondary | Change in fasting serum triglycerides (mmol/L) after broccoli and courgette soup interventions | Comparison of fasting serum triglycerides between baseline and at 12 weeks as well as washout (24 weeks) and 36 weeks. | Week: 0 to12 and 24 to 36. | |
Secondary | Change in broccoli metabolites (glucosinolates, sulforaphane, and S-methyl cysteine sulfoxide) in 24 hour urine collection | Quantification of broccoli metabolite excretion into urine metabolites will be measured from 24-hour urine collections using targeted metabolite analysis of glucosinolates, sulforaphane, and S-methyl cysteine sulfoxide. These metabolites will be used to define relationships between dietary intake, broccoli metabolism and the biological outcomes | Week: 0, 12, 24, and 36. | |
Secondary | Treatment effects on whole blood gene expression from RNAseq | The effect of soup consumption will be tested using edgeR and Limma to fit linear models to gene expression data. False discovery rate will be corrected using the Benjamin Hochberg procedure | up to 36 weeks. |
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