EFFECT OF PLANT STEROLS ON THE LIPID PROFILE OF PATIENTS WITH HYPERCHOLESTEROLAEMIA. RANDOMISED, EXPERIMENTAL STUDY
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 182
- 主要终点
- Change in lipid profile
研究概览
简要总结
Background information Studies have been conducted on supplementing the daily diet with plant sterol ester-enriched milk derivatives in order to reduce LDL-cholesterol levels and, consequently, cardiovascular risk. However, clinical practice guidelines on hypercholesterolaemia state that there is not sufficient evidence to recommend their use in subjects with hypercholesterolaemia. The null hypothesis establishes that there is no relationship between the decrease in blood LDL-cholesterol levels and the consumption of stanol ester enriched liquid yoghurt. The alternative hypothesis establishes a relationship between such consumption and the incidence of the primary variable.
The main objective of this study is to determine the efficacy of the intake of 2 g of plant sterol esters a day in lowering LDL-cholesterol levels in patients diagnosed with hypercholesterolaemia. The specific objectives are: 1) to quantify the efficacy of the daily intake of plant sterol esters in lowering LDL-cholesterol, total cholesterol and cardiovascular risk in patients with hypercholesterolaemia; 2) to evaluate the occurrence of adverse effects of the daily intake of plant sterol esters; 3) to identify the factors that determine a greater reduction in lipid levels in subjects receiving plant sterol ester supplements.
Study design Randomised, double-blind, placebo controlled experimental trial carried out at family doctors' surgeries at three health centres in the Health Area of Albacete (Spain). The study subjects will be adults diagnosed with "limit" or "defined" hypercholesterolaemia and who have LDL cholesterol levels of 130 mg/dl or over. A dairy product in the form of liquid yoghurt containing 2 g of plant sterol ester per container will be administered daily after the main meal, for a period of 24 months. The control group will receive a daily unit of yogurt not supplemented with plant sterol esters that has a similar appearance to the enriched yoghurt. The primary variable is the change in lipid profile at 1, 3, 6, 12, 18 and 24 months. The secondary variables are: change in cardiovascular risk, adherence to the dairy product, adverse effects, adherence to dietary recommendations, frequency of food consumption, basic physical examination data, health problems, lipid-lowering medication, physical activity, smoking habits and socio-demographic variables.
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
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Subjects diagnosed with limit hypercholesterolaemia (total cholesterol 200-249 mg/dl) or defined hypercholesterolaemia (total cholesterol equal to or above 250 mg/dl) who have LDL-cholesterol levels equal to or above 130 mg/dl
- •Subjects aged 18 years or over attending the participating health centres
- •Subjects who give their consent to participate after being informed of the study objectives
排除标准
- •Known hypersensitivity to sterol esters or to the other components of the food that contains them (liquid yoghurt)
- •Contraindication for treatment with sterol esters or any of the components of the food
- •Physical disability that hinders collaboration
- •Significant chronic organic or psychiatric disease
- •Not obtaining informed consent
结局指标
主要结局
Change in lipid profile
时间窗: At 1, 3, 6, 12, 18 and 24 months
Lipid levels will be measured in both plasma and capillary blood at the initial visit. The validity of the capillary blood lipid levels can be checked with the Cardiochek analyser (by total cholesterol, HDL-cholesterol and triglyceride strips, and subsequent calculation of LDL-cholesterol using the Friedewald formula). The measurements at 3, 12 and 24 months will be in plasma. At 1, 6 and 18 months they will only be in capillary blood.
次要结局
- Change in cardiovascular risk(At 1, 3, 6, 12, 18 and 24 months)
- Adherence to the dairy product (liquid yoghurt)(At 1, 3, 6, 12, 18 and 24 months)
- Adverse events(At 1, 3, 6, 12, 18 and 24 months)
- Adherence to the dietary recommendations(At 1, 3, 6, 12, 18 and 24 months)
- Frequency of food intake(At 1, 3, 6, 12, 18 and 24 months)
- Occurrence of cardiovascular events(At 1, 3, 6, 12, 18 and 24 months)
- Weight, height, body mass index (BMI)(At 1, 3, 6, 12, 18 and 24 months)
- Physical activity(At 1, 3, 6, 12, 18 and 24 months)
- Smoking habit(At 1, 3, 6, 12, 18 and 24 months)
- Systolic and diastolic blood pressure (two measurements):(At 1, 3, 6, 12, 18 and 24 months)
- Health problems(At 1, 3, 6, 12, 18 and 24 months)
- Lipid-lowering pharmacological treatment.(At 1, 3, 6, 12, 18 and 24 months)
- Socio-demographic data(Initial visit)