Vitamin D and the Influenza Epidemic

July 19, 2011 updated by: University of Tromso
Subjects included in ongoing vitamin d intervention trials were asked by questionnaire if they were ill with influenza during the winter season 2009/2010 to see if vitamin d supplementation prevented flu like disease.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

569

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Norway
      • Tromsø, Norway, 9037
        • University of Tromsø

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • participant in vitamin D versus placebo study

Exclusion Criteria:

  • none

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: cholecalciferol
cholecalciferol in doses 800-6000 IU per day
Drug: choleclaciferol
800-6000 IU cholecalciferol per day
Placebo Comparator: placebo
placebo identical looking as cholecalciferol capsules
Drug: choleclaciferol
800-6000 IU cholecalciferol per day

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
influenza during the winter season 2009/2010
Time Frame: up to 30 weeks
up to 30 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Tromso

Investigators

  • Principal Investigator: rolf Jorde, md, University of Tromso, Norway

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

April 1, 2010

Primary Completion (Actual)

September 1, 2010

Study Completion (Actual)

October 1, 2010

Study Registration Dates

First Submitted

August 11, 2010

First Submitted That Met QC Criteria

August 16, 2010

First Posted (Estimate)

August 17, 2010

Study Record Updates

Last Update Posted (Estimate)

July 20, 2011

Last Update Submitted That Met QC Criteria

July 19, 2011

Last Verified

July 1, 2011

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • UIT-ENDO-2010-1

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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