- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT03558867
Персонализированная медицина при преддиабете и раннем диабете 2 типа (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.
Обзор исследования
Статус
Условия
Вмешательство/лечение
Подробное описание
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.
Тип исследования
Регистрация (Действительный)
Фаза
- Непригодный
Контакты и местонахождение
Места учебы
-
-
New South Wales
-
Sydney, New South Wales, Австралия, 2010
- Garvan Institute of Medical Research
-
-
Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
Принимает здоровых добровольцев
Полы, имеющие право на обучение
Описание
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.
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Профилактика
- Распределение: Рандомизированный
- Интервенционная модель: Параллельное назначение
- Маскировка: Одинокий
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Плацебо Компаратор: Metformin + Healthy diet
Metformin (1500 mg/d, Extended Release) + Healthy, low fat diet |
Metformin (1500 mg/d, Extended Release) + Healthy, low fat diet
Другие имена:
|
|
Активный компаратор: 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 |
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Mean change in glycated haemoglobin (HbA1C, %) from baseline
Временное ограничение: 6 months
|
Difference in the reduction of HbA1C between the groups |
6 months
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Total daily time of interstitial glucose levels below 7.8 mmol/L (140 mg/dL)
Временное ограничение: 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
Временное ограничение: 6 months
|
Difference in the glycaemic variability as derived from CGM between the groups |
6 months
|
|
Body weight
Временное ограничение: 6 months
|
Difference in the magnitude of weight loss between the groups |
6 months
|
|
Body fat mass
Временное ограничение: 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
Временное ограничение: 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
Временное ограничение: 6 months
|
Difference in serum LDL-cholesterol between the groups |
6 months
|
|
Serum high-density lipoprotein (HDL)-cholesterol concentration
Временное ограничение: 6 months
|
Difference in serum HDL-cholesterol concentration between the groups |
6 months
|
|
Serum triglycerides concentration
Временное ограничение: 6 months
|
Difference in serum triglycerides between the groups |
6 months
|
|
Blood pressure
Временное ограничение: 6 months
|
Difference in diastolic and systolic blood pressure between the groups |
6 months
|
|
Liver fat
Временное ограничение: 6 months
|
Difference in liver fat measured by the Fibroscan's controlled attenuation parameter (CAP) function between the groups |
6 months
|
Другие показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
Gut microbiome (exploratory)
Временное ограничение: 6 months
|
Difference in gut microbiome features between the groups |
6 months
|
Соавторы и исследователи
Соавторы
Следователи
- Главный следователь: Dorit Samocha-Bonet, PhD, Garvan Institute of Medical Research
- Главный следователь: Jerry Greenfield, MD, PhD, Garvan Institute of Medical Research
- Главный следователь: Eran Elinav, MD, PhD, Weizmann Institute of Science
- Главный следователь: Eran Segal, PhD, Weizmann Institute of Science
Публикации и полезные ссылки
Полезные ссылки
Даты записи исследования
Изучение основных дат
Начало исследования (Действительный)
Первичное завершение (Действительный)
Завершение исследования (Действительный)
Даты регистрации исследования
Первый отправленный
Впервые представлено, что соответствует критериям контроля качества
Первый опубликованный (Действительный)
Обновления учебных записей
Последнее опубликованное обновление (Действительный)
Последнее отправленное обновление, отвечающее критериям контроля качества
Последняя проверка
Дополнительная информация
Термины, связанные с этим исследованием
Ключевые слова
Дополнительные соответствующие термины MeSH
- Заболевания эндокринной системы
- Метаболические заболевания
- Нарушения метаболизма глюкозы
- Сахарный диабет
- Гиперинсулинизм
- Гипергликемия
- Пищевые и метаболические заболевания
- Сахарный диабет, тип 2
- Резистентность к инсулину
- Непереносимость глюкозы
- Органические химические вещества
- Терапия
- Диета, еда и питание
- Физиологические явления
- Пищевые физиологические явления
- Диетическая терапия
- Питательная терапия
- Бигуаниды
- Гуанидины
- Амидины
- Метформин
- Диета
- Диета, здоровая
- Диета, ограниченная жиром
Другие идентификационные номера исследования
- SVH 17/080
Информация о лекарствах и устройствах, исследовательские документы
Изучает лекарственный продукт, регулируемый FDA США.
Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.
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