Diet and Omega-3 Intervention Trial on Atherosclerosis

NCT ID: NCT00764010

Last Updated: 2011-07-01

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

563 participants

Study Classification

INTERVENTIONAL

Study Start Date

1997-05-31

Study Completion Date

2001-12-31

Brief Summary

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The study was actuated to evaluate the effects of a 3-year intervention with diet and/or very long chain omega-3 (VLC n-3 PUFA), in a randomized 2x2 factorial design on the progression of atherosclerosis in a high risk population. A total of 563 elderly men were included and randomized to receive usual care and VLC n-3 placebo capsules (control group), dietary advice and VLC n-3 placebo capsules, usual care and VLC n-3 capsules, and finally both VLC n-3 capsules and dietary advice.

The evaluation of atherosclerosis were i) ultrasound measurement of carotid intima media thickening ii) pulse wave propagation time iii) circulating biomarkers of atherosclerosis.

Detailed Description

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The basis for recruitment was a follow up of subjects participating in the Oslo Diet and Anti Smoking Study (1972-1977) characterised as hypercholesterolemic in 1972.

Measurements of the outcome variables were performed at baseline and after 36 m; blood sampling also after 6 and 18 m.

In addition to the main outcome variables, a biobank was established for future analyses.

Clinical events were also recorded.

Conditions

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Atherosclerosis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

FACTORIAL

Primary Study Purpose

PREVENTION

Blinding Strategy

TRIPLE

Participants Investigators Outcome Assessors

Study Groups

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1

No dietary counseling, placebo capsules for omega-3

Group Type NO_INTERVENTION

No interventions assigned to this group

2

Dietary counseling, placebo capsules for omega-3

Group Type ACTIVE_COMPARATOR

Dietary counseling, placebo capsules for omega-3

Intervention Type DIETARY_SUPPLEMENT

Mediterranean-like diet

3

No dietary counseling, omega-3 capsules

Group Type ACTIVE_COMPARATOR

No dietary counseling and omega-3 capsules

Intervention Type DIETARY_SUPPLEMENT

Omega-3 2.4 g/day

4

Dietary counseling and omega-3 capsules

Group Type ACTIVE_COMPARATOR

Omega-3 capsules and dietary counseling

Intervention Type DIETARY_SUPPLEMENT

Omega-3 2.4 g/day and Mediterranean-like diet

Interventions

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No dietary counseling and omega-3 capsules

Omega-3 2.4 g/day

Intervention Type DIETARY_SUPPLEMENT

Omega-3 capsules and dietary counseling

Omega-3 2.4 g/day and Mediterranean-like diet

Intervention Type DIETARY_SUPPLEMENT

Dietary counseling, placebo capsules for omega-3

Mediterranean-like diet

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Elderly men with long standing hypercholesterolemia (cholesterol \> 6.45 mmol/L and \< 8.00 mmol/L) with or without coronary heart disease.

Exclusion Criteria

* Cholesterol \> 8.00 mmol/L, blood pressure \> 170/100
* Uncontrolled hypertension
* Socially or otherwise unsuitable subjects
* Anticipated non compliance
* Other major non cardiac illness expected to reduce life expectancy or interfere with study participation.
Minimum Eligible Age

64 Years

Maximum Eligible Age

76 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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University of Oslo

OTHER

Sponsor Role collaborator

Ultrasound Laboratory at Malmoe University Hospital, Sweden

OTHER

Sponsor Role collaborator

Norwegian Retail Company RIMI

UNKNOWN

Sponsor Role collaborator

Norwegian Cardiovascular Council

UNKNOWN

Sponsor Role collaborator

Ullevaal University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Ulleval University Hospital, Oslo, Norway

Principal Investigators

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Harald Arnesen, M.D, PhD

Role: PRINCIPAL_INVESTIGATOR

Ullevaal University Hospital

Locations

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UllevÄl University Hospital

Oslo, Oslo County, Norway

Site Status

Countries

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Norway

References

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Awoyemi A, Troseid M, Arnesen H, Solheim S, Seljeflot I. Markers of metabolic endotoxemia as related to metabolic syndrome in an elderly male population at high cardiovascular risk: a cross-sectional study. Diabetol Metab Syndr. 2018 Jul 21;10:59. doi: 10.1186/s13098-018-0360-3. eCollection 2018.

Reference Type DERIVED
PMID: 30038669 (View on PubMed)

Weiss TW, Arnesen H, Seljeflot I. Components of the interleukin-6 transsignalling system are associated with the metabolic syndrome, endothelial dysfunction and arterial stiffness. Metabolism. 2013 Jul;62(7):1008-13. doi: 10.1016/j.metabol.2013.01.019. Epub 2013 Feb 19.

Reference Type DERIVED
PMID: 23428306 (View on PubMed)

Einvik G, Ekeberg O, Klemsdal TO, Sandvik L, Hjerkinn EM. Physical distress is associated with cardiovascular events in a high risk population of elderly men. BMC Cardiovasc Disord. 2009 Mar 30;9:14. doi: 10.1186/1471-2261-9-14.

Reference Type DERIVED
PMID: 19331677 (View on PubMed)

Other Identifiers

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175

Identifier Type: -

Identifier Source: org_study_id

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