n-3 Fatty Acid Infusion and Type 2 Diabetes

NCT ID: NCT00829569

Last Updated: 2011-11-04

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

NA

Total Enrollment

11 participants

Study Classification

INTERVENTIONAL

Study Start Date

2004-01-31

Study Completion Date

2008-10-31

Brief Summary

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The purpose of this experimental study is to investigate whether an acute lipid infusion added marine n-3 fatty acids produces effects on insulin sensitivity in subjects with type 2 diabetes, when compared with an acute lipid infusion without marine n-3 fatty acids. Furthermore other effects on intermediary metabolism are tested for.

Detailed Description

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Evidence indicates that n-3 fatty acids exert several beneficial effects. However, the effects of marine n-3 fatty acids on intermediary metabolism have not been completely elucidated. In a previous study of a high intake of marine n-3 fatty acids during 9 wk we demonstrated reduced insulin sensitivity and altered proportion of carbohydrate vs. fat oxidation in subjects with type 2 diabetes. These results question the use of high doses of n-3 supplements in type 2 diabetes. It is not known to what extent such effects in type 2 diabetes can be reproduced by intravenous administration of n-3 fatty acids and/or whether short term intravenous administration has other effects.

Conditions

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Type 2 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators

Study Groups

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Intralipid with/without Omegaven

Lipid infusion with/without marine n-3 fatty acids

Group Type EXPERIMENTAL

Intralipid +/- Omegaven

Intervention Type DIETARY_SUPPLEMENT

Intralipid®: the 500 ml 20% Intralipid will be infused during a hyperinsulinemic clamp. Infusion rate will increase from 50 to 100 ml/hour the first 30 min and then continue at 100 ml/hour for the next 210 min, infusion duration 240 min (4 hours) in all.

Intralipid® + Omegaven®: In the 500 ml 20% Intralipid 100 ml will be replaced by 100 ml 10% Omegaven and infused during the hyperinsulinemic clamp as described for Intralipid only. Heparin (0.4 U/kg/min) will be added to both lipid emulsions.

Content of marine n-3 fatty acids in 100 ml Omegaven will be 1.25-2.82 g EPA and 1.44-3.09 g DHA (seasoning variations of n-3 fatty acids in fish oil).

Interventions

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Intralipid +/- Omegaven

Intralipid®: the 500 ml 20% Intralipid will be infused during a hyperinsulinemic clamp. Infusion rate will increase from 50 to 100 ml/hour the first 30 min and then continue at 100 ml/hour for the next 210 min, infusion duration 240 min (4 hours) in all.

Intralipid® + Omegaven®: In the 500 ml 20% Intralipid 100 ml will be replaced by 100 ml 10% Omegaven and infused during the hyperinsulinemic clamp as described for Intralipid only. Heparin (0.4 U/kg/min) will be added to both lipid emulsions.

Content of marine n-3 fatty acids in 100 ml Omegaven will be 1.25-2.82 g EPA and 1.44-3.09 g DHA (seasoning variations of n-3 fatty acids in fish oil).

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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Fresenius Kabi, ATC main group B05B A 02 Intralipid Vnr 42 79 55 Omegaven Vnr 55 25 54

Eligibility Criteria

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Inclusion Criteria

* Type 2 diabetes defined by clinical criteria and by absence of antibodies to glutamic acid decarboxylase.
* HbA1c 5,5 - 8,5 %
* Blood pressure ≤ 170 mm Hg systolic and/or ≤ 105 mm Hg diastolic

Exclusion Criteria

* insulin treatment
* hypertriglyceridemia (\> 2,1 mmol/l TG)
* proliferative retinopathy, renal insufficiency (Se-Creatinine \> 150 μmol/l)
* alcoholism, congestive heart failure or other serious diseases affecting the possibility of the subject to participate
* supplement with fish oil or marine n-3 fatty acids during the last 6 months before baseline
* Dicumarol treatment
* allergy to soya, fish or egg
* pregnancy or lactation
* smoking
Minimum Eligible Age

30 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Norwegian University of Science and Technology

OTHER

Sponsor Role collaborator

Norwegian Foundation for Health and Rehabilitation

OTHER

Sponsor Role collaborator

Novo Nordisk A/S

INDUSTRY

Sponsor Role collaborator

Norwegian Diabetes Association

OTHER

Sponsor Role collaborator

St. Olavs Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Valdemar Grill, M.D.

Role: PRINCIPAL_INVESTIGATOR

St. Olavs Hospital, NTNU

Locations

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Department of Medicine, Division of Endocrinology, St. Olavs Hospital

Trondheim, , Norway

Site Status

Countries

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Norway

References

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Mostad IL, Bjerve KS, Basu S, Sutton P, Frayn KN, Grill V. Addition of n-3 fatty acids to a 4-hour lipid infusion does not affect insulin sensitivity, insulin secretion, or markers of oxidative stress in subjects with type 2 diabetes mellitus. Metabolism. 2009 Dec;58(12):1753-61. doi: 10.1016/j.metabol.2009.06.003. Epub 2009 Aug 27.

Reference Type RESULT
PMID: 19716144 (View on PubMed)

Other Identifiers

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03-14463

Identifier Type: OTHER

Identifier Source: secondary_id

15759

Identifier Type: OTHER

Identifier Source: secondary_id

03/05008

Identifier Type: OTHER

Identifier Source: secondary_id

4.2003.169

Identifier Type: -

Identifier Source: org_study_id