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Completed

NCT Number: NCT00243256

Treatment of Obesity With Vitamin D (40.000 IE Per Week for 1 Year)

The purpose of the study is to evaluate if supplementation with vitamin D in doses of 20.000IU per week and 40.000 IU per week will result in weight loss in obese subjects as compared to placebo during 1 year.

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Key information

Conditions

Obesity Body Weight Nutrition Disorders Nutritional and Metabolic Diseases Overnutrition Overweight Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

21 year–70 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 2

Primary location

Clinical Research Unit, University Hospital of North Norway

Tromsø, 9038, Norway

About this study

We will include 450 obese subjects that will be devided in 3 groups: 40.000IU cholecalciferol per week, 20.000 IU cholecalciferol per week, and placebo. All subjects will be given 500 mg calcium per day. There will be visits every tird month. In addition to weight reduction, we will also evaluate the calcium metabolism (blood test and urin samples), insulin sensitivity, muscle strenght, blood pressure and depression.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • BMI 30 - 40
  • serum calcium < 2.55 mmol/L

Exclusion criteria

  • serious diseases
  • reduced kidney function
  • renal stone disease
  • using psychopharmaca
  • using drugs for weight reduction

Treatment and study plan

Cholecalciferol

Drug

Primary outcomes

  1. Body Weight

  2. Body composition

  3. Measures of calcium metabolism

  4. Insulin sensitivity

  5. Muscle strength

  6. Depression score

  7. Blood pressure

Sponsors and collaborators

Lead sponsor

University of Tromso

Other

Registry information

Important dates

Study start
2005
Study completion
2007
First posted
Oct 21, 2005
Registry last updated
May 14, 2008

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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