NCT00789880

Brief Summary

This study will examine whether administration of oral Vitamin D3 given over 21 days will change the antimicrobial peptide expression in the skin or saliva of subjects with Atopic Dermatitis (AD). This study will help researchers determine if the lack of the expression of antimicrobial peptides in individuals with AD plays a role in the susceptibility to eczema vaccinatum (EV).

Trial Health

87
On Track

Trial Health Score

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

Enrollment
82

participants targeted

Target at P50-P75 for phase_2

Timeline
Completed

Started Dec 2008

Shorter than P25 for phase_2

Geographic Reach
1 country

3 active sites

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

November 11, 2008

Completed
2 days until next milestone

First Posted

Study publicly available on registry

November 13, 2008

Completed
18 days until next milestone

Study Start

First participant enrolled

December 1, 2008

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2009

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2009

Completed
3.1 years until next milestone

Results Posted

Study results publicly available

January 22, 2013

Completed
Last Updated

April 12, 2017

Status Verified

March 1, 2017

Enrollment Period

1 year

First QC Date

November 11, 2008

Results QC Date

December 7, 2012

Last Update Submit

March 10, 2017

Conditions

Keywords

Vitamin D3Atopic DermatitisAntimicrobial Peptide Expression

Outcome Measures

Primary Outcomes (6)

  • Change From Baseline on Day 21 in Relative Abundance of CAMP mRNA in Lesional and Non-Lesional Skin for Atopic Dermatitis (AD) Participants Who Received Oral Vitamin D3 Versus Vitamin D3-Placebo

    Cathelicidin (CAMP) Messenger Ribonucleic Acid (mRNA) expression from skin biopsies measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline. Cathelicidin amount is clinically significant as it is necessary to resist infection. Cathelicidin amount is not known to be clinically relevant to the clinical signs of dermatitis associated with AD.

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of CAMP mRNA in Non-Lesional Skin for Non-Atopic Dermatitis (Non-AD) Participants Who Received Oral Vitamin D3 Versus Vitamin D3-Placebo

    Cathelicidin (CAMP) Messenger Ribonucleic Acid (mRNA) expression from skin biopsies measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. Non-AD is defined as a healthy volunteer without atopic dermatitis, therefore the lesional skin-type was not measured in this group. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline. Cathelicidin amount is clinically significant as it is necessary to resist infection. Cathelicidin amount is not known to be clinically relevant to the clinical signs of dermatitis associated with AD.

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of CAMP mRNA in Lesional and Non-Lesional Skin for Psoriatic Participants Who Received Vitamin D3 Versus Vitamin D3-Placebo

    Cathelicidin (CAMP) messenger ribonucleic acid (mRNA) expression from skin biopsies measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline, Cathelicidin abundance in psoriasis has been hypothesized to correlate with increased inflammation. No direct clinical correlation is known.

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of HBD-3 mRNA in Lesional and Non-Lesional Skin for Atopic Dermatitis (AD) Participants Who Received Oral Vitamin D3 Versus Vitamin D3-Placebo

    Human Beta-defensin 3 (HBD-3) Messenger Ribonucleic Acid (mRNA) expression from skin biopsies as measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline. HBD-3 amount is clinically significant as it is necessary to resist infection. HBD-3 amount is not known to be clinically relevant to the clinical signs of dermatitis associated with AD.

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of HBD-3 mRNA in Non-Lesional Skin for Non-Atopic Dermatitis (Non-AD) Participants Who Received Oral Vitamin D3 Versus Vitamin D3-Placebo

    Human Beta-defensin 3 (HBD-3) Messenger Ribonucleic Acid (mRNA) expression from skin biopsies measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. Non-AD is defined as a healthy volunteer without atopic dermatitis, therefore the lesional skin-type was not measured in this group. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline. HBD-3 amount is clinically significant as it is necessary to resist infection. HBD-3 amount is not known to be clinically relevant to the clinical signs of dermatitis associated with AD.

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of HBD-3 mRNA in Lesional and Non-Lesional Skin for Psoriatic Participants Who Received Vitamin D3 Versus Vitamin D3-Placebo

    Human Beta-defensin 3 (HBD-3) Messenger Ribonucleic acid (mRNA) expression from skin biopsies measured by quantitative real time polymerase chain reaction (qRT-PCR). Average delta cycle threshold (CT) adjusted for non-atopic average at baseline on the arithmetic scale = \[(average of (CT for CAMP - CT for Glyceraldehyde-3-phosphate dehydrogenase (GAPDH)) across replicates) - (the average of (CT for CAMP - CT for GAPDH) for non-atopic subjects at baseline)\]. A negative value indicates a drop from baseline and a positive value indicates an increase from baseline. There is no known clinical correlation between HBD-3 and psoriasis.

    Baseline to Day 21

Secondary Outcomes (3)

  • Change From Baseline on Day 21 in Relative Abundance of IL-13 mRNA in Lesional and Non-Lesional Skin for Atopic Dermatitis (AD) Participants Who Received Vitamin D3 Versus Vitamin D3-Placebo

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of IL-13 mRNA in Non-Lesional Skin for Non-Atopic Dermatitis (Non-AD) Participants Who Received Vitamin D3 Versus Vitamin D3-Placebo

    Baseline to Day 21

  • Change From Baseline on Day 21 in Relative Abundance of IL-13 mRNA in Lesional and Non-Lesional Skin for Psoriatic Participants Who Received Vitamin D3 Versus Vitamin D3-Placebo

    Baseline to Day 21

Study Arms (2)

Vitamin D3

EXPERIMENTAL

Subjects received a 21-day course of oral vitamin D3 (cholecalciferol, 4,000 international units \[IU\]

Drug: Vitamin D3

Placebo

PLACEBO COMPARATOR

Subjects received a 21-day course of oral vitamin D3-placebo

Drug: Placebo

Interventions

Administration of oral vitamin D3 at 4000IU

Also known as: cholecalciferol
Vitamin D3

Administration of oral Vitamin D3 placebo

Also known as: vitamin D3 placebo
Placebo

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Definitive diagnosis of AD for at least 6 months, stringently diagnosed using the ADVN Standard Diagnostic Criteria, and has lesional skin present OR is a non-atopic healthy control subject with no personal or family history of food allergy, AD, asthma, or allergic rhinitis
  • Residing in the US.
  • Definitive diagnosis of typical plaque psoriasis for at least 6 months, stringently diagnosed using the ADVN Standard Diagnostic Criteria; or is an AD or non-atopic healthy control subject participating in the main protocol ADVN CATH 03.
  • Residing in the US.

You may not qualify if:

  • Presence of atopy without stringent AD features, allowing only a presumptive diagnosis of AD
  • Presence of AD with exfoliative erythroderma
  • Presence of psoriasis
  • Pregnant or lactating females
  • Existence of ongoing dental disease (e.g., gingivitis)
  • History of bleeding disorders
  • Presence of severe AD that would be exacerbated by withholding of topical corticosteroids, oral or topical antibiotics, topical or systemic antihistamines, oral antivirals, immune enhancers (e.g., imiquimod), or topical calcineurin inhibitors within 7 days of Study Visit 2 (Baseline) and throughout the course of the trial
  • Receiving systemic immunosuppressives, chemotherapeutic agents, anti-inflammatory biologics (e.g., alefacept, etanercept), systemic, oral, injectable or inhaled steroids, vitamin D supplements (more than 400 IU daily) or oral calcineurin inhibitors 30 days prior to the Study Visit 2 (Baseline) or anytime during the course of the trial
  • Using topical corticosteroids, oral or topical antibiotics, oral antivirals, immune enhancers (e.g., imiquimod), topical or systemic antihistamines, or topical calcineurin inhibitors within 7 days of Study Visit 2 (Baseline) and during the course of the trial
  • Receiving phototherapy (e.g., UVB, psoralen plus ultraviolet light A \[PUVA\]) within 30 days of Study Visit 2 (Baseline) and during the course of the trial
  • Having autoimmune or immunodeficiency disease
  • Presence of active systemic fungal (excluding nail fungus), bacterial, or viral infections
  • History of or presence of active systemic malignancy, excluding uncomplicated non-melanoma skin cancer
  • Mental illness or history of drug or alcohol abuse that, in the opinion of the investigator, would interfere with the participant's ability to comply with study requirements
  • Inability or unwillingness of a participant to give written informed consent
  • +36 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

University of California, San Diego

San Diego, California, 92037, United States

Location

National Jewish Health

Denver, Colorado, 80206, United States

Location

Oregon Health & Science University

Portland, Oregon, 97239, United States

Location

Related Publications (2)

  • Schauber J, Dorschner RA, Yamasaki K, Brouha B, Gallo RL. Control of the innate epithelial antimicrobial response is cell-type specific and dependent on relevant microenvironmental stimuli. Immunology. 2006 Aug;118(4):509-19. doi: 10.1111/j.1365-2567.2006.02399.x.

  • Hata TR, Audish D, Kotol P, Coda A, Kabigting F, Miller J, Alexandrescu D, Boguniewicz M, Taylor P, Aertker L, Kesler K, Hanifin JM, Leung DY, Gallo RL. A randomized controlled double-blind investigation of the effects of vitamin D dietary supplementation in subjects with atopic dermatitis. J Eur Acad Dermatol Venereol. 2014 Jun;28(6):781-9. doi: 10.1111/jdv.12176. Epub 2013 May 3.

Related Links

MeSH Terms

Conditions

Dermatitis, AtopicPsoriasis

Interventions

Cholecalciferol

Condition Hierarchy (Ancestors)

Skin Diseases, GeneticGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesDermatitisSkin DiseasesSkin and Connective Tissue DiseasesSkin Diseases, EczematousHypersensitivity, ImmediateHypersensitivityImmune System DiseasesSkin Diseases, Papulosquamous

Intervention Hierarchy (Ancestors)

CholestenesCholestanesSteroidsFused-Ring CompoundsPolycyclic CompoundsSterolsVitamin DSecosteroidsMembrane LipidsLipids

Results Point of Contact

Title
Director, Clinical Research Operations Program
Organization
DAIT/NIAID

Study Officials

  • Richard Gallo, MD, PhD

    University of California, San Diego

    STUDY CHAIR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 11, 2008

First Posted

November 13, 2008

Study Start

December 1, 2008

Primary Completion

December 1, 2009

Study Completion

December 1, 2009

Last Updated

April 12, 2017

Results First Posted

January 22, 2013

Record last verified: 2017-03

Data Sharing

IPD Sharing
Will share

Participant level data and additional relevant materials are available to the public in the Immunology Database and Analysis Portal (ImmPort). ImmPort is a long-term archive of clinical and mechanistic data from DAIT-funded grants and contracts.

Available IPD Datasets

Individual Participant Data Set (SDY14)Access
Study Protocol (SDY14)Access
Study summary, -design, -assessments, -adverse events, -intervention(s), -study files et al. (SDY14)Access

Locations