Immunologic Action of a Single Dose Cholecalciferol

NCT ID: NCT01845142

Last Updated: 2015-06-25

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-02-28

Study Completion Date

2014-04-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Vitamin D receptors are expressed in activated different immune cells. It is not known, which immune cell type is targeted by exogenous vitamin D. Here, vitamin D-deficient individuals will receive once 100.000 I.U. vitamin D3 either intramuscular or subcutaneous in a double-blind placebo controlled setting. Immune cells will be monitored from the blood over time.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Vitamin D-deficient individuals will receive once

* double-blind, placebo controlled 100.000 I.U.vitamin D3
* intramuscular or subcutaneous

Blood will be taken over time and

* immune cells (T cells, B cells, myeloid antigen presenting cells) are characterized by flow-cytometry
* vitamin D-metabolites will be monitored

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Vitamin D Deficiency

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

intramuscular 100.000 I.U. vitamin D3

intramuscular 100.000 I.U. vitamin D3

Group Type ACTIVE_COMPARATOR

single administration of 100.000 I.U. vitamin D

Intervention Type DRUG

intramuscular placebo

intramuscular 0.9% sodium chloride

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

subcutaneous 100.000 I.U. vitamin D3

subcutaneous 100.000 I.U. vitamin D3

Group Type ACTIVE_COMPARATOR

single administration of 100.000 I.U. vitamin D

Intervention Type DRUG

subcutaneous placebo

subcutaneous 0.9% sodium chloride

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

single administration of 100.000 I.U. vitamin D

Intervention Type DRUG

Placebo

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

cholecalciferol

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* informed consent
* 18-60 yrs
* 25-hydroxyvitamin D serum below 50 nmol/L
* women only: effective contraception

Exclusion Criteria

* 25-hydroxyvitamin D serum above 50 nmol/L
* body-mass index \<18 or \>30 kg per m2
* planned UV-exposure (UV-index \> 5)
* hypersensitivity to vitamin D
* history of hypercalcemia, kidney stones, kidney insufficiency, sarcoidosis, pseudohyperparathyroidism concomitant vitamin A- and/or vitamin D treatment
* treatment with immunosuppressants, immunomodulators, phenytoin, barbiturate, thiazide-diuretics, glycosides
* immobile patients
* out of normal range on screening visit (calcium,phosphate,creatinin,hematology)
* psychiatric hospitalization
* pregnancy / breast-feeding
* dependency / relationship on sponsor
* concomitant participation in other clinical trials (30 days before)
* drug or alcohol abuse
* lack of compliance
Minimum Eligible Age

18 Years

Maximum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Margitta Worm

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Margitta Worm

Prof. Dr. med.

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Margitta Worm, Prof

Role: PRINCIPAL_INVESTIGATOR

Charite University, Berlin, Germany

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Dpt of Dermatology and Allergology, Charité University Medicine Berlin

Berlin, State of Berlin, Germany

Site Status

Countries

Review the countries where the study has at least one active or historical site.

Germany

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

2012-003217-33

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

ViDImmun

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

A Study on Oral Vitamin D Megadoses
NCT01067898 COMPLETED PHASE4