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Slowing HEART diSease With Lifestyle and Omega-3 Fatty Acids (HEARTS)

26 сентября 2017 г. обновлено: Francine K. Welty, Beth Israel Deaconess Medical Center

Slowing HEART diSease With Lifestyle and Omega-3 Fatty Acids (HEARTS)

The purpose of the study is to target inflammation to reduce progression of noncalcified plaque in the coronary arteries using omega-3 fatty acid supplementation compared to standard of care.

Обзор исследования

Подробное описание

Study Design: This is a randomized, parallel study design with a usual care control group. 278 subjects with coronary heart disease (CHD) are being randomized to omega-3 supplementation or standard of care (139 in each arm).

Multidetector computed tomographic angiography (MDCTA) is performed at baseline to quantitate the amount of noncalcified and calcified coronary plaque and again at 30 month follow-up to determine if there has been a change in the volume of noncalcified or total plaque. The primary endpoint is change in coronary noncalcified plaque volume during the 30 months of intervention between active and standard of care.

Hypothesis: Percent change in progression of coronary plaque volume will be less for the omega-3 fatty acid intervention compared to standard of care.

Secondary endpoints include plasma levels of inflammatory markers, lipids and measures of insulin sensitivity.

Secondary outcomes include testing the hypothesis that targeting inflammation with omega-3 fatty acids will be associated with:

  1. Change in total plaque volume per patient.
  2. improvement in physical function and exercise and reduction in pain and stiffness as measured by the WOMAC questionnaire
  3. Reduction of mediators of inflammation in the circulation including CRP, PAI-1, serum amyloid A, MMP-9 and fibrinogen, pro-inflammatory cytokines including IL-6, TNF-a and IL-1b, the adhesion molecules VCAM-1 and ICAM-1, increase in adiponectin and reduction in serum nitrotyrosine as a marker of oxidative stress.
  4. Reduction of insulin resistance assessed by fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR).
  5. Reduction of inflammation in the liver associated with nonalcoholic steatohepatitis (NASH), a newly recognized component of the metabolic syndrome, and reduction of fatty liver quantitated by computerized tomography and levels of AST and ALT as markers of liver inflammation related to NASH.
  6. Investigation of the relationship between vitamin D status and coronary plaque progression as well as with insulin resistance (HOMA-IR), beta-cell function (HOMA-%beta) and inflammatory cytokines.
  7. Determination of whether baseline vitamin D levels predict clinical response to the omega-3 fatty acid intervention, and whether hypovitaminosis D is associated with plaque progression.

Тип исследования

Интервенционный

Регистрация (Действительный)

338

Фаза

  • Непригодный

Контакты и местонахождение

В этом разделе приведены контактные данные лиц, проводящих исследование, и информация о том, где проводится это исследование.

Места учебы

    • Massachusetts
      • Boston, Massachusetts, Соединенные Штаты, 02215
        • Beth Israel Deaconess Medical Center
      • Milton, Massachusetts, Соединенные Штаты, 02186
        • South Shore Medical Group

Критерии участия

Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.

Критерии приемлемости

Возраст, подходящий для обучения

От 21 год до 80 лет (Взрослый, Пожилой взрослый)

Принимает здоровых добровольцев

Нет

Полы, имеющие право на обучение

Все

Описание

Inclusion Criteria:

  1. coronary artery disease
  2. previous myocardial infarction
  3. angioplasty (> 6 months ago)
  4. previous coronary bypass surgery (> 12 months ago)
  5. stable angina
  6. non-calcified plaque on prior CT
  7. abnormal exercise tolerance test
  8. aged 21- 80 years
  9. BMI ≥ 27 kg/m2 and ≤ 35 kg/m2 if female and ≤ 40 kg/m2 if male (a BMI > 24.5 for subjects from Asian origin)
  10. stable dose of statin for 1 month at screening or unable to tolerate a statin
  11. normal renal function - estimated creatinine clearance calculated using Cockcroft-Gault (CG) equation ≥60 at screening [eCrCLCG (ml/min) = [(140 - age) x weight (kg)]/[SCr(mg/dl) x 72] x [0.85 if female] or serum Cr < 1.3
  12. ALT, AST) < 3 times upper limits of normal)
  13. normal thyroid function or on stable dose replacement therapy
  14. an ETT performed within 12 months prior

Exclusion criteria

  1. unstable angina (increase in frequency or severity of anginal episodes or development of chest pain at rest)
  2. significant obstructive disease in left main coronary artery, ostial LAD or newly diagnosed three-vessel disease since prior cardiac catheterization by MDCTA
  3. significant heart failure (NYHA class III and IV)
  4. Current atrial fibrillation or Wolf-Parkinson-White (WPW) syndrome
  5. allergy to beta-blocker in subjects with resting heart rate > 65 bpm
  6. systolic blood pressure > 160 mm Hg
  7. diastolic BP > 100 mm Hg
  8. persons with allergies to iodinated contrast material or shellfish
  9. allergy to nitroglycerin
  10. history of asthma only if unable to tolerate beta-blockers
  11. BMI > 35 kg/m2 if female and > 40 kg/m2 if male
  12. body weight > 350 lbs
  13. Use of drugs for weight loss [eg Xenical (orlistat), Meridia (sibutramine), Acutrim (phenylpropanolamine) or similar over-the-counter medications] within three months of screening
  14. surgery within 30 days of screening
  15. history of acquired immune deficiency syndrome or human immunodeficiency virus (HIV)
  16. poor mental function or history of dementia/Alzheimer's Disease or on medications used for treatment of dementia [e.g. Tacrine (Cognex), Rivastigmine (Exelon), Galantamine (Razadyne, Reminyl), Donepezil (Aricept), Memantine (Namenda)] or any other reason to except patient difficulty in complying with the requirements of the study
  17. medicine for erectile dysfunction within 72 hours prior to MDCTA
  18. Prior stroke with residual cognitive deficit or functional deficit preventing any type of exercise
  19. Current chemotherapy or radiation for malignancy
  20. Current weekly alcohol consumption > 21 units/week (1 unit = 1 beer, 1 glass of wine, 1 mixed cocktail containing 1 ounce of alcohol)

Exclusions based on nuclear imaging:

  1. Transient cavity dilation
  2. More than one vascular territory involved with reversible defect (multiple defects)
  3. Reversible defects involving the anterior wall, septum or apex (LAD territory)

Exclusions based on echocardiography imaging:

1. More than one vascular territory involved with inducible wall motion abnormalities (multiple defects) 2. Inducible wall motion abnormalities involving the anterior wall, septum or apex (LAD territory)

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Учебный план

В этом разделе представлена ​​подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.

Как устроено исследование?

Детали дизайна

  • Основная цель: Уход
  • Распределение: Рандомизированный
  • Интервенционная модель: Параллельное назначение
  • Маскировка: Нет (открытая этикетка)

Оружие и интервенции

Группа участников / Армия
Вмешательство/лечение
Без вмешательства: Usual care
Those randomized to usual care will continue to follow the care provided by their cardiologist. They will have all the follow-up phone calls, visits and testing which the intervention group has.
Активный компаратор: Lovaza (Omega 3 ethyl esters)
Lovaza 3.6 g daily

Что измеряет исследование?

Первичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
The primary endpoint is change in coronary noncalcified plaque volume.
Временное ограничение: Baseline and 30 months
MDCTA is performed at baseline to quantitate the amount of noncalcified and calcified coronary plaque and again at 30 month follow-up to determine if there has been a change in the volume of noncalcified or total plaque. The primary endpoint is change in coronary noncalcified plaque volume during the 30 months of intervention between active and standard of care. The hypothesis is that those on Lovaza will have less progression of coronary plaque compared to those in usual care.
Baseline and 30 months

Вторичные показатели результатов

Мера результата
Мера Описание
Временное ограничение
Coronary artery plaque assessment
Временное ограничение: Baseline and 30 months
  1. Percent atheroma volume calculated as the proportion of the entire vessel wall occupied by atherosclerotic plaque and total atheroma volume, normalized to segment length.
  2. Maximum percent diameter stenosis and minimal luminal diameter.
  3. Number of subjects with categorical variables of maximal stenosis >50% and number with 3-vessel disease >20%.
  4. Number of subjects with stenosis of 0-29%, 30-49%, 50-69% and >70% stenosis at baseline compared to 30 months.
  5. Change in remodeling index - ratio of plaque volume at the most diseased site compared to the least diseased site.
Baseline and 30 months
Effect of Lovaza on Physical Function, Pain, Stiffness and Exercise
Временное ограничение: Baseline and 1 year
Those on Lovaza will have better physical function and less pain and stiffness as assessed by the WOMAC questionnaire and more minutes of exercise per week compared to control
Baseline and 1 year
Inflammatory markers
Временное ограничение: Baseline and 30 months
Compared to usual care, those on Lovaza will have reduction of mediators of inflammation in the circulation, including CRP, PAI-1, serum amyloid A, MMP-9 and fibrinogen, pro-inflammatory cytokines including IL-6, TNF-a and IL-1b, the adhesion molecules VCAM-1 and ICAM-1, increase in adiponectin and reduction in serum nitrotyrosine as a marker of oxidative stress. Additional inflammatory markers may be identified in the future and measured.
Baseline and 30 months
Pericardial Fat
Временное ограничение: Baseline and 30 months
The amount of pericardial fat will be quantitated by CT at baseline and 30-month follow-up. The percent change between the two time-frames will be measured. Those on Lovaza and/or those who have lost weight will have a reduction (or lack of increase) in pericardial fat at 30-months compared to those in usual care.
Baseline and 30 months
Insulin Resistance
Временное ограничение: Baseline and 30 months
Insulin resistance will be assessed by fasting insulin and homeostasis model assessment of insulin resistance (HOMA-IR) at baseline and 30-months in the two study groups.
Baseline and 30 months
Nonalcoholic steatohepatitis (NASH)
Временное ограничение: Baseline and 30 months
Reduction of inflammation in the liver associated with nonalcoholic steatohepatitis (NASH), a component of the metabolic syndrome, and reduction of fatty liver quantitated by computerized tomography and levels of AST and ALT as markers of liver inflammation related to NASH.
Baseline and 30 months
Vitamin D Levels and coronary plaque progression
Временное ограничение: Baseline and 30 months
  1. Investigation of the relationship between vitamin D status and coronary plaque progression, insulin resistance (HOMA-IR), beta-cell function (HOMA-%beta) and inflammatory cytokines
  2. Do baseline vitamin D levels predict response to omega-3 fatty acid supplementation?
Baseline and 30 months
Cognitive function
Временное ограничение: Baseline, 1 year and 30-months
To determine if those on Lovaza have less decline in cognitive function at 1 year and 30 months of follow-up compared to those in the usual care group.
Baseline, 1 year and 30-months
Exercise capacity and coronary plaque
Временное ограничение: Baseline
To determine if exercise capacity correlates with coronary plaque measurements. The hypothesis is that those with better exercise capacity will have lower amounts of coronary plaque.
Baseline
Urinary microalbumin and coronary plaque
Временное ограничение: Baseline and 30-months
At baseline, subjects with lower urinary microalbumin will have lower amounts of coronary plaque. Those taking Lovaza will have less increase in urinary microalbmumin at 30-month follow-up compared to those in usual care.
Baseline and 30-months

Соавторы и исследователи

Здесь вы найдете людей и организации, участвующие в этом исследовании.

Следователи

  • Главный следователь: Francine K Welty, MD, PhD, Beth Israel Deaconess Medical Center

Публикации и полезные ссылки

Лицо, ответственное за внесение сведений об исследовании, добровольно предоставляет эти публикации. Это может быть что угодно, связанное с исследованием.

Общие публикации

Даты записи исследования

Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.

Изучение основных дат

Начало исследования

1 июня 2009 г.

Первичное завершение (Действительный)

15 января 2015 г.

Завершение исследования (Действительный)

15 января 2015 г.

Даты регистрации исследования

Первый отправленный

15 мая 2012 г.

Впервые представлено, что соответствует критериям контроля качества

19 июня 2012 г.

Первый опубликованный (Оценивать)

21 июня 2012 г.

Обновления учебных записей

Последнее опубликованное обновление (Действительный)

27 сентября 2017 г.

Последнее отправленное обновление, отвечающее критериям контроля качества

26 сентября 2017 г.

Последняя проверка

1 сентября 2017 г.

Дополнительная информация

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. .

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