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临床试验/NCT00223574
NCT00223574已完成不适用

Long-Term Effect of Altering the Source or Amount of Dietary Carbohydrate in Type 2 Diabetes

University of Toronto10 个研究点 分布在 1 个国家目标入组 168 人开始时间: 2002年1月最近更新:
适应症
相关药物

试验速览

阶段
不适用
状态
已完成
入组人数
168
试验地点
10
主要终点
glycated hemoglobin

研究概览

简要总结

A long-term low carbohydrate, high monounsaturated fat diet, compared to a high carbohydrate, low glycemic index diet, results in more rapid progression of diabetes; i.e. increased fasting glucose and glycated hemoglobin, reduced beta-cell function and insulin sensitivity and increased free fatty acids. The deleterious effects of a high carbohydrate diet on plasma lipids are only temporary and do not persist beyond 6 months. A long-term high carbohydrate, low glycemic index diet, compared to a high carbohydrate, high glycemic index diet, improves glycemic control and beta-cell function

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Single

入排标准

年龄范围
35 Years 至 75 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • male or non-pregnant/non-lactating females with type 2 diabetes treated by diet alone
  • age 53-75y
  • body mass index 25-40kg/m^2 (Caucasian) or 23-40kg/m^2 (other)
  • HbA1c <=130% of upper limit of normal of local hospital lab

排除标准

  • use of any hypoglycemic or anti-hyperglycemic drug within 6 months of randomization
  • major cardiovascular event or major surgery within 6 months of randomization
  • serum triglycerides >10mmol/L
  • presence of other major debilitating disorder such as liver disease, renal failure or cancer
  • presence of gastrointestinal disorder or use of drug which is likely to alter gastrointestinal motility or nutrient absorption
  • use of oral steroids
  • substance or alcohol abuse
  • simultaneous participation in another clinical trial
  • allergy or intolerance to more than one of wheat, barley, corn, oats, potato, legumes, nuts, psyllium, olives, avocado or canola
  • unwilling or unable to follow the protocol and/or give informed consent
  • subjects planning to be on holiday for more than 8 weeks in a row or a total of 12 weeks in the year in locations to which they will not take study food

结局指标

主要结局

glycated hemoglobin

次要结局

  • Body weight
  • waist circumference
  • occurrence of diet failure
  • fasting glucose
  • fasting C-reactive protein
  • fasting lipids (total, HDL and LDL cholesterol and triglcyerides)
  • fasting apolipoproteins A1 and B100
  • fasting free fatty acids
  • fasting short chain fatty acids
  • plasma glucose and insulin 30, 60 and 120min after 75g oral glucose
  • insulin sensitivity (HOMA)
  • beta-cell function (30min-fasting insulin)/(30min-fasting glucose)
  • metabolic profile (glucose, insulin, triglycerides and FFA during 8h profile)
  • quality of life
  • gastrointestinal symptoms
  • diet satisfactio

研究者

申办方类型
Other

研究点 (10)

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