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Идёт набор NCT06392854

Regional Lipolysis Insulin Regulation

Ранняя фаза I С лечением Obesity

Ориентир для пациента и семьи

Простыми словами

Автоматическая сводка по структурированным данным реестра. Она помогает сориентироваться, но не заменяет официальный протокол или оценку врача.

Что изучают
В протоколе указаны: Insulin.
Кому может быть актуально
Состояния в реестре: Obesity. Базовые параметры: 18 лет — 65 лет · Все.
Что важно проверить
Возраст, диагноз и пол — только базовые ориентиры. Предыдущее лечение, анализы и другие обязательные условия указаны ниже в критериях участия.
Где проводится
США
Следующий шаг
Сохраните исследование, покажите его лечащему врачу и уточните актуальный статус у исследовательского центра. Расходы, документы и поездка →

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Официальное название

Insulin Regulation of Regional Lipolysis

Обзор

Adults who gain most of their excess weight in the abdominal area typically do not respond to insulin in the same way as lean adults. Researchers are trying to understand why fat tissue responds differently in people with different body types.

Подробное описание

Measure regional free fatty acid (FFA) release in volunteers with and without UBO under two different conditions that suppress lipolysis and a condition that markedly stimulates lipolysis.

Вмешательства

  • Препарат Insulin
    2 dose insulin infusion 4 hours

Первичные конечные точки

  • palmitate release [Срок оценки: The study will be conducted in a single day and will last approximately 6 hours]

Критерии участия

Критерии включения

  • Males and females 18-65years who are able to comprehend instructions, follow study procedures and who willing to provide written, informed consent will be included. The volunteers will consume an isoenergetic diet eating all meals from Mayo Clinical Research Trials Unit (CRTU) for 3 days prior to study.
  • Overweight/Obese volunteers will have a BMI 29.0 - 37.0 kg/m2
  • Upper body/visceral obesity (UBO) in women will be defined as those with a waist-hip ratio (WHR) \> 0.85 and/or increased visceral fat by single slice CT scan, usually with \> 120 cm2 of visceral fat by CT scanning or a visceral fat/total fat ratio of \> 0.30, and/or biochemical evidence of metabolic syndrome as defined by ATP III criteria (fasting plasma triglycerides ≥ 150 mg/dL, HDL-cholesterol \< 50 mg/dL for women and \< 40 mg/dL for men, fasting plasma glucose ≥ 100 mg/dL). Upper body obesity in men will be defined as a waist-hip ratio of \>0.95 and/or increased visceral fat (visceral fat area \> 180 cm2 or a visceral/total fat abdominal ratio by CT of \> 0.40) by single slice CT scan and/or biochemical evidence of metabolic syndrome as defined by adenosine triphosphate (ATP) III criteria. These visceral fat values are based upon the data collected at Mayo Clinic using our methods, and are correlated with dyslipidemia and hyperinsulinemia.
  • Lower body obesity (LBO) in women will be defined as a waist-hip ratio of \<0.75 and/or a lower visceral fat by single slice CT scan, usually \< 120 cm2 or a visceral fat/total fat ratio of ≤ 0.30 and fasting plasma triglycerides within the normal range. The term "lower body men" is used to describe a male phenotype that is characteristic of adipose insulin sensitivity even with excess body fat. A waist to hip ratio isn't suitable for this description as it is for women. LBO men will be defined as obese men with normal fasting plasma triglycerides, normal fasting plasma glucose and greater proportional leg fat via dual-energy x-ray absorptiometry (DEXA).
  • Female subjects are eligible if they meet the following criteria:
  • Are not pregnant or nursing.
  • All women of childbearing potential will have a negative urine pregnancy test at screening and a negative urine pregnancy test day of admission for inpatient study visit.

Критерии исключения

  • Individuals with a history of a disease process such as:
  • Ischemic heart disease
  • Atherosclerotic valvular disease
  • Persistent blood pressure greater than 160/95 despite antihypertensive medication
  • Smokers
  • Diagnosis Diabetes Mellitus
  • Concomitant use of medications that can alter free fatty acid metabolism, including, but not limited to niacin, thiazolidinediones, beta-blockers, oral or injected corticosteroids or anabolic steroids.
  • Allergy to lidocaine
  • Allergy to indocyanine green.

Критерии приведены из реестра в оригинале (на английском). Окончательную оценку соответствия проводит исследовательский центр.

Здоровые добровольцы: Да

Дизайн исследования

Распределение
Нерандомизированное
Модель
Параллельные группы
Маскирование
Открытое
Основная цель
Фундаментальное исследование

Центры проведения

США · 1 центр
  • Mayo Clinic in Rochester — Rochester

Идентификаторы

NCT: NCT06392854 · 23-002995 · R01DK040484

Первоисточники (государственные реестры)

Открыть это исследование на ClinicalTrials.gov ↗