Effects of Vitamin D Supplementation in Subjects With New Onset of Type 1 Diabetes

NCT ID: NCT01390480

Last Updated: 2015-04-17

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

PHASE4

Total Enrollment

31 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-11-30

Study Completion Date

2014-02-28

Brief Summary

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In this placebo controlled study the investigators aim to investigate the effects of vitamin D supplementation in subjects with new onset of type 1 diabetes on immunological, endocrine and metabolic parameters.

Detailed Description

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This is a bicentric, randomized placebo controlled, double blind study, with the aim to evaluate the effect of vitamin D supplementation in subjects with new onset of type 1 diabetes on immunological, endocrine and metabolic parameters.

The primary study goal is to evaluate the influence of vitamin D supplementation on the number and function of the master regulatory T-cells under controlled conditions within 13 months. The secondary study goals are a comprehensive immune phenotyping to determine whether Vit D produces changes consistent with a general improvement in immune homeostasis that supports ß-cell tolerating interventions, the assessment of ß-cell function in all subjects to obtain preliminary data on the effects of Vit D on ß-cell survival.

Conditions

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Type 1 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Placebo

peanut oil

Group Type PLACEBO_COMPARATOR

Cholecalciferol

Intervention Type DRUG

weekly dose (based on 70 IU/kg bodyweight/day) orally

Vitamin D (Oleovit®)

cholecalciferol

Group Type ACTIVE_COMPARATOR

Cholecalciferol

Intervention Type DRUG

weekly dose (based on 70 IU/kg bodyweight/day) orally

Interventions

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Cholecalciferol

weekly dose (based on 70 IU/kg bodyweight/day) orally

Intervention Type DRUG

Other Intervention Names

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intervention: Oleovit D3 Placebo: peanut oil

Eligibility Criteria

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Inclusion Criteria

* males or females \> 6 years
* new onset of type 1 diabetes (3 months)

Exclusion Criteria

* pregnancy
* hypercalcemia (\>2,65 mmol/L)
* chronic disease including a long-term medication over 4 weeks per year (except type 1 diabetes)
Minimum Eligible Age

6 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University of Vienna

OTHER

Sponsor Role collaborator

Medical University of Graz

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Thomas Pieber, Prof.

Role: PRINCIPAL_INVESTIGATOR

Medical University of Graz

Locations

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Medical University Graz

Graz, , Austria

Site Status

Countries

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Austria

References

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Treiber G, Prietl B, Frohlich-Reiterer E, Lechner E, Ribitsch A, Fritsch M, Rami-Merhar B, Steigleder-Schweiger C, Graninger W, Borkenstein M, Pieber TR. Cholecalciferol supplementation improves suppressive capacity of regulatory T-cells in young patients with new-onset type 1 diabetes mellitus - A randomized clinical trial. Clin Immunol. 2015 Dec;161(2):217-24. doi: 10.1016/j.clim.2015.08.002. Epub 2015 Aug 12.

Reference Type DERIVED
PMID: 26277548 (View on PubMed)

Other Identifiers

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ENM-DA-017

Identifier Type: -

Identifier Source: org_study_id

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