NCT01278121

Brief Summary

One of today's major health problem in the western world is related to lifestyle. Lifestyle diseases include obesity, type 2 diabetes, cardiovascular diseases and different types of cancers. For many years, a low-fat diet has been recommended to reduce obesity and lifestyle diseases, but replacing fat with carbohydrates has lead to an increase of these diseases. Overweight is associated with a chronical low-degree inflammation, and later studies have shown that carbohydrates have an effect on the mechanisms of inflammation. Previous studies in the investigators group has shown that in healthy, but slightly overweight persons, a balanced diet of lower carbohydrate content regulates the gene expression in a manner that leads to less inflammation. In this study the investigators will look at morbid obese women (BMI\>35) to see if the same, balanced diet can improve the inflammatory profile of the women.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable obesity

Timeline
Completed

Started Feb 2011

Shorter than P25 for not_applicable obesity

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 4, 2010

Completed
7 months until next milestone

First Posted

Study publicly available on registry

January 17, 2011

Completed
15 days until next milestone

Study Start

First participant enrolled

February 1, 2011

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2011

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

January 1, 2012

Completed
Last Updated

January 18, 2017

Status Verified

January 1, 2017

Enrollment Period

10 months

First QC Date

July 4, 2010

Last Update Submit

January 16, 2017

Conditions

Keywords

ObesityDiabetes Mellitus, Type 2Cardiovascular diseases

Outcome Measures

Primary Outcomes (1)

  • Changes in microarray gene expression

    Changes in microarray gene expression profiles in blood from morbid obese women, in response to balanced dietary macro nutrient composition

    Day 1, 4 and 14

Secondary Outcomes (1)

  • Inflammatory markers, hormonal dietary responses and blood lipids

    Day 1, 4 and 14

Study Arms (2)

Diet A: High-fat diet

OTHER

Diet given for 3 days to "reset" all of the participants

Dietary Supplement: Diet A

Diet B: A carbohydrate-restricted diet

ACTIVE COMPARATOR

The diet will be given for 10 days, 6 meals a day

Dietary Supplement: Diet B

Interventions

Diet ADIETARY_SUPPLEMENT

3 days, 6 meals a day

Also known as: Diet intervention, Obesity
Diet A: High-fat diet
Diet BDIETARY_SUPPLEMENT

10 days, 6 meals a day

Also known as: Low carbohydrate diet
Diet B: A carbohydrate-restricted diet

Eligibility Criteria

Age16 Years+
Sexfemale
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • BMI \> 35 kg/m2

You may not qualify if:

  • Allergies (fish, nuts, eggs)
  • Patient under treatment/using medicine that can influence results
  • Pregnancy and lactation

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

NTNU Department of Biology

Trondheim, Trondheim, 7491, Norway

Location

Related Publications (1)

  • Brattbakk HR, Arbo I, Aagaard S, Lindseth I, de Soysa AK, Langaas M, Kulseng B, Lindberg F, Johansen B. Balanced caloric macronutrient composition downregulates immunological gene expression in human blood cells-adipose tissue diverges. OMICS. 2013 Jan;17(1):41-52. doi: 10.1089/omi.2010.0124. Epub 2011 Jun 16.

MeSH Terms

Conditions

ObesityDiabetes Mellitus, Type 2Cardiovascular Diseases

Interventions

AdiposityDiet, Carbohydrate-Restricted

Condition Hierarchy (Ancestors)

OverweightOvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsDiabetes MellitusGlucose Metabolism DisordersMetabolic DiseasesEndocrine System Diseases

Intervention Hierarchy (Ancestors)

Body Fat DistributionBody Weights and MeasuresBody ConstitutionPhysical ExaminationDiagnostic Techniques and ProceduresDiagnosisBody CompositionBiochemical PhenomenaChemical PhenomenaMetabolismPhysiological PhenomenaDiet TherapyNutrition TherapyTherapeuticsDietNutritional Physiological PhenomenaDiet, Food, and Nutrition

Study Officials

  • Berit Johansen, PhD

    Norwegian University of Science and Technology

    PRINCIPAL INVESTIGATOR
  • Marian Forde, Cand.Scient.

    Norwegian University of Science and Technology

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
FACTORIAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 4, 2010

First Posted

January 17, 2011

Study Start

February 1, 2011

Primary Completion

December 1, 2011

Study Completion

January 1, 2012

Last Updated

January 18, 2017

Record last verified: 2017-01

Locations