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Clinical Study to Assess High-DHA Fish Oil on Biomarkers of Cardiovascular Disease Risk in Adults on Statin Therapy

Clinical Study to Assess the Acute and Chronic Effects of a High-DHA Fish Oil on Fasting and Post-Prandial Biomarkers of Cardiovascular Disease Risk in Adults on Statin Therapy.

The objective of this study is to determine the acute and chronic [4-week] effects of a high-DHA fish oil supplement on fasting and post-prandial (post-meal) biomarkers of cardiovascular disease risk, in adults on Statin therapy.

Descripción general del estudio

Descripción detallada

This study involves fasted and post-prandial components.

Fasted Study:

Participants will provide fasting blood samples pre-and post-intervention [4-week administration of supplement or placebo] in Treatment Period I. Participants will again provide fasting blood samples pre-and post-intervention [4-week administration of supplement or placebo, opposite to Treatment Period I] during Treatment Period II.

There will be a 4-week washout period during the two Treatment Periods.

Post-prandial study:

Participants will also complete a post-prandial study pre-and post-intervention during each Treatment Period.

Tipo de estudio

Intervencionista

Inscripción (Anticipado)

36

Fase

  • No aplica

Contactos y Ubicaciones

Esta sección proporciona los datos de contacto de quienes realizan el estudio e información sobre dónde se lleva a cabo este estudio.

Ubicaciones de estudio

    • Ontario
      • Guelph, Ontario, Canadá, N1G 0B4
        • Nutrasource Diagnostics Inc.

Criterios de participación

Los investigadores buscan personas que se ajusten a una determinada descripción, denominada criterio de elegibilidad. Algunos ejemplos de estos criterios son el estado de salud general de una persona o tratamientos previos.

Criterio de elegibilidad

Edades elegibles para estudiar

18 años a 70 años (Adulto, Adulto Mayor)

Acepta Voluntarios Saludables

No

Géneros elegibles para el estudio

Todos

Descripción

Inclusion Criteria:

  • Be an adult between the ages of 18 and 70;
  • Be a male or a post-menopausal female who has gone a minimum of one year since their last menses;
  • Be taking Statin medication at a stable dose for a minimum of four weeks prior to study commencement [and whom have reached a target LDL level];
  • Have elevated fasting triglyceride levels [greater than 1.5 mmol/L but less than 5.7 mmol/L];
  • Have fasting blood glucose levels below the study cut-off [less than 7.0 mmol/L];
  • Have a Body Mass Index (BMI) less than 35.0
  • Be taking natural health products BUT agree to cease consumption during the study period and a 4-week pre-study washout prior to study commencement. Study participants will be allowed to consume a daily multivitamin if they have been doing so at a stable dose for a minimum of three months prior to study commencement.

Exclusion Criteria:

  • Be younger than 18 years of age or older than 70 years of age;
  • Be an adult pre- or peri-menopausal female;
  • Not have taken Statin medication at a stable dose for a minimum of 4 weeks prior to study commencement;
  • Have fasting triglyceride levels outside of study limits[ie/ less than 1.5 mmol/L or greater than 5.7 mmol/L];
  • Have elevated fasting blood glucose levels [greater or equal to 7.0 mmol/L];
  • Have high blood pressure [greater than 140/100]
  • Have a Body Mass Index (BMI) equal to or greater than 35.0
  • Have a pre-existing cardiovascular disease or illness, including angina, myocardial infarction, stroke, intermittent claudication or transient ischemic attack;
  • Have a known allergy to fish and/or fish oil, olive oil, soy or Vitamin E;
  • Be taking natural health products but are unwilling to cease consumption during the study period and a 4-week pre-study washout prior to study commencement;
  • Consume more than two (2) fish meals on a weekly basis
  • Consume excessive amounts of alcohol on a weekly basis [more than 10 alcoholic drinks per week];
  • Anticipate or have planned surgery during the course of the study.

Plan de estudios

Esta sección proporciona detalles del plan de estudio, incluido cómo está diseñado el estudio y qué mide el estudio.

¿Cómo está diseñado el estudio?

Detalles de diseño

  • Propósito principal: Tratamiento
  • Asignación: Aleatorizado
  • Modelo Intervencionista: Asignación cruzada
  • Enmascaramiento: Doble

Armas e Intervenciones

Grupo de participantes/brazo
Intervención / Tratamiento
Experimental: 1 (Dietary Supplement - Fish Oil)

On Day 1 & Day 29, the researcher will obtain anthropometric measurements as specified in the study protocol. A venous catheter will be inserted and a fasted blood sample will be drawn, which will be analyzed for study primary and secondary endpoints. Participants will consume a Breakfast Meal (which will represent t0) and will have blood drawn at a total of 7 time points. Blood samples drawn at30, t60, t120, and t180 will be analyzed for glucose and insulin; blood samples drawn at t60, t120, t180, t240, t300 and t360 will be analyzed for triglycerides. Upon completion of the 6 hour blood draw period, the venous catheter will be removed.

On Day 15, the researcher will obtain anthropometric measurements as specified in the study protocol.

On Day 1 and Day 15, participants will receive a 2-week supply of study supplements and will be instructed to consume 4 capsules per day. Each capsule contains 1000 mg of fish oil [620 mg of DHA and 150 mg of EPA], providing a total daily dosage of 4000 mg of fish oil [3080 mg of DHA+EPA].
Experimental: 2 (Placebo)

On Day 1 & Day 29, the researcher will obtain anthropometric measurements as specified in the study protocol. A venous catheter will be inserted and a fasted blood sample will be drawn, which will be analyzed for study primary and secondary endpoints. Participants will consume a Breakfast Meal (which will represent t0) and will have blood drawn at a total of 7 time points. Blood samples drawn at30, t60, t120, and t180 will be analyzed for glucose and insulin; blood samples drawn at t60, t120, t180, t240, t300 and t360 will be analyzed for triglycerides. Upon completion of the 6 hour blood draw period, the venous catheter will be removed.

On Day 15, the researcher will obtain anthropometric measurements as specified in the study protocol.

On Day 1 and Day 15, participants will receive a 2-week supply of study supplements and will be instructed to consume 4 capsules per day. Each capsule contains 1000 mg of olive oil, providing a total daily dosage of 4000 mg of olive oil.

¿Qué mide el estudio?

Medidas de resultado primarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Triglyceride [TG]
Periodo de tiempo: 0 and 4 weeks
Fasted and postprandial samples will be drawn (hourly up to 6 hours).
0 and 4 weeks

Medidas de resultado secundarias

Medida de resultado
Medida Descripción
Periodo de tiempo
Glucose
Periodo de tiempo: 0 and 4 weeks
Fasted and postprandial samples will be drawn (every 30 minutes up to 2 hours).
0 and 4 weeks
Insulin
Periodo de tiempo: 0 and 4 weeks
Fasted and postprandial samples will be drawn (every 30 minutes up to 2 hours).
0 and 4 weeks
Total cholesterol [TC]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
High-density lipoprotein [HDL]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Low-density lipoprotein [LDL]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Very low-density lipoprotein [VLDL]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Lipoprotein A
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Intermediate-density lipoprotein [IDL]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Remnant Lipoproteins
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
High-sensitivity C-Reactive Protein [hs-CRP]
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Homocysteine
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Essential Fatty Acid Profile
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Apolipoprotein B
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks
Apolipoprotein A-1
Periodo de tiempo: 0 and 4 weeks
A fasted blood sample will be taken.
0 and 4 weeks

Colaboradores e Investigadores

Aquí es donde encontrará personas y organizaciones involucradas en este estudio.

Investigadores

  • Investigador principal: Alison Duncan, Ph.D., R.D., University of Guelph

Fechas de registro del estudio

Estas fechas rastrean el progreso del registro del estudio y los envíos de resultados resumidos a ClinicalTrials.gov. Los registros del estudio y los resultados informados son revisados ​​por la Biblioteca Nacional de Medicina (NLM) para asegurarse de que cumplan con los estándares de control de calidad específicos antes de publicarlos en el sitio web público.

Fechas importantes del estudio

Inicio del estudio

1 de septiembre de 2012

Finalización primaria (Actual)

1 de diciembre de 2013

Finalización del estudio (Actual)

1 de febrero de 2014

Fechas de registro del estudio

Enviado por primera vez

10 de septiembre de 2012

Primero enviado que cumplió con los criterios de control de calidad

18 de septiembre de 2012

Publicado por primera vez (Estimar)

21 de septiembre de 2012

Actualizaciones de registros de estudio

Última actualización publicada (Estimar)

7 de febrero de 2014

Última actualización enviada que cumplió con los criterios de control de calidad

6 de febrero de 2014

Última verificación

1 de febrero de 2014

Más información

Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .

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