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Gepersonaliseerde geneeskunde bij prediabetes en vroege diabetes type 2 (PREDICT)
Personalised Medicine in Prediabetes - Towards Preventing Diabetes in Individuals at Risk
Prediabetes is a common condition in overweight individuals affecting approximately 35% of American adults and 30% of Australian adults. Like diabetes, prediabetes is a serious risk factor for cardiovascular disease, eye, kidney and liver disease, and some types of cancer.
Appropriate blood glucose control is crucial in preventing pre-diabetes complications and onset of diabetes, yet clinical practice, backed by randomised trials, reports that many patients treated with standard dietary guidelines or with the first-line treatment of diabetes patients, metformin, do not improve blood glucose control sufficiently.
The overarching goal of the present project is to improve the efficacy of metformin mono-therapy in pre-diabetes and early type 2 diabetes.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
Prediabetes is common in overweight and obese individuals and, as with frank diabetes, it is a risk factor for cardiovascular disease, cognitive dysfunction, fatty liver, kidney, ophthalmic, renal and neuropathic disease, and cancer.
Effective management of dysglycemia in pre-diabetes and diabetes and prevention of diabetes in individuals at risk reduce the risk of organ damage and associated co-morbidities and improves the affected individuals' quality of life.
Metformin, an oral biguanide, is the first-line treatment of newly-diagnosed type 2 diabetes patients, and the pharmacological choice for preventing diabetes in individuals with pre-diabetes. Metformin is an ideal medication to initiate for diabetes prevention, due to its excellent safety profile (lack of hypoglycemia), neutral to marginally beneficial effect on body weight, evidence of cardio-protection, and low cost. However, clinical practice, backed by randomised clinical trials, suggests that metformin mono-therapy fails to achieve glycemic goals in 20-40% of type 2 diabetes patients and to prevent diabetes in approximately 20% of individuals with pre-diabetes.
While the mode of action of metformin is still being investigated, the liver and the gastrointestinal tract are thought to be the main targets responsible for the improvement in glycemia. An increasing body of evidence suggests that the gut microbiota play an important role in obesity, prediabetes and diabetes, and alterations in gut microbial composition have been described in individuals with type 2 diabetes and pre-diabetes. Interestingly, metformin-treated diabetes patients have a "healthier" gut microbial composition compared with treatment-naïve diabetes patients, and changes in gut microbial composition with metformin treatment has been suggested to contribute to the therapeutic effect of the medication.
Randomised, clinical study with parallel assignment and single-masking will be performed in treatment-naïve individuals with pre-diabetes or early type 2 diabetes (diagnosed in the last 6 months) aiming to compare the effect of metformin (extended release [XR]) 1500 mg/d administered with personalized diet (based on the Weizmann Institute Personalized Nutrition Project) or administered with a healthy (low fat) diet.
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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New South Wales
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Sydney, New South Wales, Australië, 2010
- Garvan Institute of Medical Research
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion criteria:
- Prediabetes or early-stage type 2 diabetes according to the American Diabetes Association (2019) diagnostic criteria, with HbA1c ≤8.0% (64 mmol/mol).
- Women of childbearing potential willing to take precautions to avoid pregnancy throughout the study and for 3 months after the end of treatment.
- Willingness to provide written informed consent and willingness to participate and comply with the study.
Exclusion Criteria:
- Females planning a pregnancy during the course of the research or 3 months after completion of the research project. Females who breastfeed.
- Patients with type 1 diabetes, chronically active inflammatory disease, neoplastic disease in the previous 3 years, chronic gastrointestinal disorders, including inflammatory bowel disease or celiac.
- Liver enzymes ALT and/or AST>3-times normal range limit.
- Abnormal renal function as measured by (eGFR<45 mL/min/1.73m^2).
- Individuals with a history of a psychological illness or condition that may interfere with the individual's ability to understand the requirements of the study.
- Normo-glycaemia.
- HbA1c>8.0%
- Cardiovascular event in the previous 6 months.
- Current or recent (within 24 months) treatment with a glucose lowering medication (i.e. GLP-1 receptor agonist, SGLT2 inhibitor, thiazolidinedione, sulfonylurea, DPP-4 inhibitor or insulin).
- Current or recent (within 3 months) treatment with metformin.
- Treatment with an oral steroid.
- Treatment with antibiotics in the last 3 months.
- Treatment with immunosuppressive medications.
- Treatment with medications known to interact with metformin, including cimetidine, vitamin K antagonists and nifedipine.
- Substance abuse.
- Participants who had received an investigational new drug within the last 6 months.
- Participants involved in another clinical study.
- Participants who actively lose weight.
- Participants who had a bariatric surgery.
- Any reason the Investigator believes the participant is not likely to be adherent to the study treatment and protocol, including non-adherence to run-in.
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Enkel
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
|
Placebo-vergelijker: Metformin + Healthy diet
Metformin (1500 mg/d, Extended Release) + Healthy, low fat diet |
Metformin (1500 mg/d, Extended Release) + Healthy, low fat diet
Andere namen:
|
|
Actieve vergelijker: Metformin + Personalized diet
Metformin (1500 mg/d, Extended Release) + Personalized diet based on an algorithm developed at the Weizmann Institute of Science (Zeevi et al, Cell 2015) |
Metformin (1500 mg/d, Extended Release) + Algorithm-based personalized diet |
Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Mean change in glycated haemoglobin (HbA1C, %) from baseline
Tijdsspanne: 6 months
|
Difference in the reduction of HbA1C between the groups |
6 months
|
Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Total daily time of interstitial glucose levels below 7.8 mmol/L (140 mg/dL)
Tijdsspanne: 6 months
|
Difference in the time (minutes) per day with interstitial glucose measured below 7.8 mmol/L (140 mg/dL) between the groups |
6 months
|
|
Glycaemic variability
Tijdsspanne: 6 months
|
Difference in the glycaemic variability as derived from CGM between the groups |
6 months
|
|
Body weight
Tijdsspanne: 6 months
|
Difference in the magnitude of weight loss between the groups |
6 months
|
|
Body fat mass
Tijdsspanne: 6 months
|
Difference in body fat mass composition as assessed using dual-energy X-ray absorptiometry (DXA) between the groups |
6 months
|
|
Abdominal visceral fat volume
Tijdsspanne: 6 months
|
Difference in the abdominal visceral fat volume as assessed using DXA between the groups |
6 months
|
|
Serum low-density lipoprotein (LDL)-cholesterol concentration
Tijdsspanne: 6 months
|
Difference in serum LDL-cholesterol between the groups |
6 months
|
|
Serum high-density lipoprotein (HDL)-cholesterol concentration
Tijdsspanne: 6 months
|
Difference in serum HDL-cholesterol concentration between the groups |
6 months
|
|
Serum triglycerides concentration
Tijdsspanne: 6 months
|
Difference in serum triglycerides between the groups |
6 months
|
|
Blood pressure
Tijdsspanne: 6 months
|
Difference in diastolic and systolic blood pressure between the groups |
6 months
|
|
Liver fat
Tijdsspanne: 6 months
|
Difference in liver fat measured by the Fibroscan's controlled attenuation parameter (CAP) function between the groups |
6 months
|
Andere uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
|
Gut microbiome (exploratory)
Tijdsspanne: 6 months
|
Difference in gut microbiome features between the groups |
6 months
|
Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Dorit Samocha-Bonet, PhD, Garvan Institute of Medical Research
- Hoofdonderzoeker: Jerry Greenfield, MD, PhD, Garvan Institute of Medical Research
- Hoofdonderzoeker: Eran Elinav, MD, PhD, Weizmann Institute of Science
- Hoofdonderzoeker: Eran Segal, PhD, Weizmann Institute of Science
Publicaties en nuttige links
Nuttige links
Studie record data
Bestudeer belangrijke data
Studie start (Werkelijk)
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Werkelijk)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
- Endocriene systeemziekten
- Metabole ziekten
- Glucosemetabolismestoornissen
- Suikerziekte
- Hyperinsulinisme
- Hyperglykemie
- Voedings- en stofwisselingsziekten
- Diabetes mellitus, type 2
- Insuline-resistentie
- Glucose intolerantie
- Organische chemicaliën
- Therapeutica
- Dieet, voedsel en voeding
- Fysiologische fenomenen
- Nutritionele fysiologische fenomenen
- Dieettherapie
- Voedingstherapie
- Biguanides
- Guanidines
- Amidines
- Metformine
- Dieet
- Dieet, gezond
- Dieet, vet beperkt
Andere studie-ID-nummers
- SVH 17/080
Informatie over medicijnen en apparaten, studiedocumenten
Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel
Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct
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