NCT05523986

Brief Summary

A double-blind study to evaluate the role of human microbiome and vitamin D in the development of atopic dermatitis.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
300

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Aug 2022

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

August 9, 2022

Completed
20 days until next milestone

First Submitted

Initial submission to the registry

August 29, 2022

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 1, 2022

Completed
2.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2025

Completed
Last Updated

September 7, 2023

Status Verified

September 1, 2023

Enrollment Period

2.9 years

First QC Date

August 29, 2022

Last Update Submit

September 5, 2023

Conditions

Keywords

atopic dermatitishuman microbiomevitamin Dvitamin D receptors and vitamin D binding protein

Outcome Measures

Primary Outcomes (8)

  • Levels of vitamin D

    Vitamin D will be measured in a blood sample by ELISA to determine baseline status.

    Month 0

  • Levels of vitamin D

    Vitamin D will be measured in a blood sample to follow the change from baseline in vitamin D level at month 6.

    Month 6

  • Single nucleotide polymorphism of vitamin D receptor and vitamin D binding protein

    Single nucleotide polymorphism (SNP) genotyping will be performed in a blood sample by using TaqMan SNP genotyping assays.

    Month 0

  • Microbiome Microbiome

    Nasal, skin and anal swabs will be used to detect respiratory and intestinal microbiome by using 16S rRNA sequencing to determine baseline status.

    Month 0

  • Microbiome Microbiome

    Nasal, skin and anal swabs will be used to detect respiratory and intestinal microbiome by using 16S rRNA sequencing,and to follow the change from baseline in microbiome at month 6.

    Month 6

  • Total IgE

    Plasma total IgE concentration will be measured by microparticle immunoassay (IMx analyzer, Abbott Laboratories, Abbott Park, IL) and ELISA to determine baseline status.

    Month 0

  • Total IgE

    Plasma total IgE concentration will be measured by microparticle immunoassay (IMx analyzer, Abbott Laboratories, Abbott Park, IL) and ELISA to follow the change from baseline in total IgE at month 6.

    Month 6

  • Allergen-specific IgE

    Plasma allergen-specific IgE will be measured by BioIC ®.

    Month 0

Secondary Outcomes (2)

  • The Eczema Area and Severity Index (EASI)

    Month 0 to Month 6

  • Patient Oriented Eczema Measure (POEM)

    Month 0 to Month 6

Study Arms (2)

Experimental: Treatment group

EXPERIMENTAL

Vitamin D (2000IU/day) for 6 months

Other: Vitamin D

Placebo Comparator: Control group

PLACEBO COMPARATOR

placebo

Other: Placebo

Interventions

Vitamin D (2000IU/day) for 6 months

Experimental: Treatment group
PlaceboOTHER

Placebo

Placebo Comparator: Control group

Eligibility Criteria

Age1 Year - 18 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Experimental group: Patients were 1-18 years old with EASI score moderate to severe atopic dermatitis, and atopic dermatitis was defined as three or more of the following statements to be diagnosed as atopic dermatitis:
  • skin itching
  • typical skin symptoms (including eczematous dermatitis or lichenified dermatitis) and location (mostly on the extensor side of the face and body in infants and young children, and on the flexor side of joints in adults)
  • chronic persistent or recurrent dermatitis for more than 6 months.
  • Individuals or family members with atopic constitution such as allergic rhinitis, asthma, atopic dermatitis or urticaria.
  • Control group:healthy children under the age of 18 (eg, healthy siblings of sick children).

You may not qualify if:

  • Less than 1 year old or more than 18 years old.
  • Patients with mild EASI severity of atopic dermatitis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

China Medical University Hospital

Taichung, 404, Taiwan

RECRUITING

MeSH Terms

Conditions

Dermatitis, Atopic

Interventions

Vitamin D

Condition Hierarchy (Ancestors)

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

Intervention Hierarchy (Ancestors)

SecosteroidsSteroidsFused-Ring CompoundsPolycyclic Compounds

Central Study Contacts

Jiu-Yao Wang, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 29, 2022

First Posted

September 1, 2022

Study Start

August 9, 2022

Primary Completion

June 30, 2025

Study Completion

June 30, 2025

Last Updated

September 7, 2023

Record last verified: 2023-09

Locations