- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT01482286
Effect of Weight and Insulin Sensitivity on Reproductive Function in PCOS (PULSE)
Обзор исследования
Статус
Условия
Вмешательство/лечение
Подробное описание
Тип исследования
Регистрация (Действительный)
Фаза
- Фаза 3
Контакты и местонахождение
Места учебы
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Louisiana
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Baton Rouge, Louisiana, Соединенные Штаты, 70808
- Pennington Biomedical Research Center
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Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
Принимает здоровых добровольцев
Полы, имеющие право на обучение
Описание
Inclusion Criteria:
- 20 - 40 years, inclusive
- Body mass index ≥ 25 kg/m2
- History of irregular menstrual cycles (fewer than 6 cycles in the past year)
- Clinical and/or biochemical androgen excess (Free androgen index>3.85 and/or hirsuitism rating ≥8)
- Anovulatory menstrual cycles (determined during screening)
Exclusion Criteria:
- Ovulatory menstrual cycles (determined during screening by luteal phase serum progesterone >3ng/mL)
- History or clinical appearance of cardiovascular disease, diabetes (Type 1 or Type 2) and any other significant reproductive, metabolic, hematologic, pulmonary, gastrointestinal, neurologic, immune, hepatic, renal, urologic disorders, or cancer.
- Hemoglobin, hematocrit, red blood cell count, or iron level below the lower limit of normal at the screening visit confirmed by a test repeated within two weeks
- Regular use of medications for weight control, glucose intolerance, thyroid disease
- Use of hormonal contraception containing medroxyprogesterone acetate (A 3 month washout period will be permitted for oral, vaginal and transdermal contraceptives).
Psychiatric and Behavioral Exclusion Criteria
- Smoking
- History of drug or alcohol abuse (up to 14 drinks a week are allowed) within the past two years
- History or presence of an eating disorder as determined by Interview for Diagnosis of Eating Disorders (IDED-IV)
- Beck Depression Index (BDI) score of ≥15 at screening or baseline
Other Exclusion Criteria
- Individuals who have lost more than 5kg (11lbs) in the past 6 months
- Individuals who are pregnant or breast-feeding or whom become pregnant during the study
- Individuals engaged in a regular program of physical fitness involving some heavy physical activity (e.g., jogging or riding fast on a bicycle for 30 minutes or more) at least five times per week over the past year
- Individuals who have metallic objects in their body
- Individuals who donated blood within 30 days prior to the date of randomization
- Individuals unwilling to be assigned at random to either one of the intervention groups
- Unwilling or unable to adhere to the rigors of the data collection (determined by food and activities diaries at screening, see below) and clinical evaluation schedule over the entire 24 week intervention period
- Individuals who plan to move out of the area within the next 12 months or plan to be out of the study area for more than 4 weeks in the next 12 months
- Individuals who reside too far from Pennington
Учебный план
Как устроено исследование?
Детали дизайна
- Основная цель: Уход
- Распределение: Рандомизированный
- Интервенционная модель: Параллельное назначение
- Маскировка: Двойной
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
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Экспериментальный: Metformin
Subjects randomized to the metformin treatment group will receive 1000 mg extended release metformin hydrochloride tablets (Bristol Myers Squibb) twice per day with food approximately 8 hours apart.
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Subjects randomized to the metformin treatment group will receive 1000 mg extended release metformin hydrochloride tablets (Bristol Myers Squibb) twice per day with food approximately 8 hours apart.
Другие имена:
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Экспериментальный: Dietary Restriction
Subjects randomized to the dietary restriction group (DR) will reduce their energy intake by 25% from their weight maintenance energy intake determined at baseline by doubly labeled water.There will be no gradual ramping of dietary restriction.
The 25% energy reduction goal will apply from the first day of the intervention for a period of 24 weeks.
Subjects will be asked to not modify their normal level of physical activity.
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Subjects randomized to the dietary restriction group will reduce their energy intake by 25% of their weight maintenance energy intake determined at baseline.
Total energy expenditure as measured by a 14-day doubly labeled water (DLW) study will be used to determine the baseline energy intake of each subject.
There will be no gradual ramping of dietary restriction.
The 25% energy reduction goal will apply from the first day of the intervention for a period of 24 weeks.
Subjects will be asked to not modify their normal level of physical activity.
Другие имена:
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Экспериментальный: Exercise
Subjects randomized to the exercise training group will complete a structured program of aerobic training 3 to 4 times per week and resistance exercises 2 times per week.
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For the aerobic training component, subjects are required to meet a weekly energy expenditure target of 10 kcal per kg of body weight per week (KKW). The resistance training program will be performed 2 days a week. The resistance program includes 9 exercises. The 9 primary exercises are seated chest press, seated row, shoulder press, lat pull down, double leg press, leg extension, leg curl, back extension and abdominal crunch.
Другие имена:
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Без вмешательства: Control
Subjects randomized to the no treatment control group will be asked to continue, as normal their usual dietary and exercise regimen.
Subjects will be asked to not begin diet or exercise regimens through the 24-week study or to begin medical treatment for PCOS.
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Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
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Luteinizing Hormone (LH) Pulse Frequency
Временное ограничение: Baseline and Week 24
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Change in Luteinizing Hormone (LH) Pulse Frequency measured over a 12-hour period (7:00 PM - 7:00 AM). The Mean and Standard Deviation (SD) are the number of pulses recorded on the 12-hour period (7:00 PM - 7:00 AM) and presented as the change from baseline to week 24. Only participants who completed the PULSE trial are included in present outcome measure as the primary outcome was established as change from pre-to-post-intervention LF pulse frequency. |
Baseline and Week 24
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Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
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Insulin Sensitivity Expressed as Glucose Disposal Rate (GDR)
Временное ограничение: Baseline and Week 24
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Change in insulin sensitivity measured by the euglycemic hyperinsulinemic clamp. Unit of measure established as glucose disposal rate (GDR) adjusted to account for kilograms of fat-free mass (FFM)+17.7 per minute to reflect the amount of exogenous glucose necessary to fully compensate for hyperinsulinemia and expressed as a function of metabolic body size. Only participants who completed the PULSE trial are included in present outcome measure as the primary outcome was established as change from pre-to-post-intervention Insulin Sensitivity expressed as Glucose Disposal Rate. |
Baseline and Week 24
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Соавторы и исследователи
Следователи
- Главный следователь: Leanne M Redman, PhD, Pennington Biomedical Research Center
Публикации и полезные ссылки
Общие публикации
- Broskey NT, Tam CS, Sutton EF, Altazan AD, Burton JH, Ravussin E, Redman LM. Metabolic inflexibility in women with PCOS is similar to women with type 2 diabetes. Nutr Metab (Lond). 2018 Oct 20;15:75. doi: 10.1186/s12986-018-0312-9. eCollection 2018.
- Broskey NT, Klempel MC, Gilmore LA, Sutton EF, Altazan AD, Burton JH, Ravussin E, Redman LM. Assessing Energy Requirements in Women With Polycystic Ovary Syndrome: A Comparison Against Doubly Labeled Water. J Clin Endocrinol Metab. 2017 Jun 1;102(6):1951-1959. doi: 10.1210/jc.2017-00459.
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 (Оценивать)
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
- Нарушения метаболизма глюкозы
- Метаболические заболевания
- Новообразования
- Заболевания эндокринной системы
- Кисты яичников
- Кисты
- Заболевания яичников
- Заболевания придатков
- Заболевания гонад
- Гиперинсулинизм
- Синдром поликистоза яичников
- Резистентность к инсулину
- Гипогликемические агенты
- Физиологические эффекты лекарств
- Метформин
Другие идентификационные номера исследования
- PBRC11016
- R00HD060762 (Грант/контракт NIH США)
Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .