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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.

Studieoversigt

Status

Afsluttet

Detaljeret beskrivelse

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.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

36

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

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

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 70 år (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

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.

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: 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].
Eksperimentel: 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.

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Triglyceride [TG]
Tidsramme: 0 and 4 weeks
Fasted and postprandial samples will be drawn (hourly up to 6 hours).
0 and 4 weeks

Sekundære resultatmål

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

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Alison Duncan, Ph.D., R.D., University of Guelph

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. september 2012

Primær færdiggørelse (Faktiske)

1. december 2013

Studieafslutning (Faktiske)

1. februar 2014

Datoer for studieregistrering

Først indsendt

10. september 2012

Først indsendt, der opfyldte QC-kriterier

18. september 2012

Først opslået (Skøn)

21. september 2012

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

7. februar 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

6. februar 2014

Sidst verificeret

1. februar 2014

Mere information

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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