Vitamin D Treatment Effect for Atopic Dermatitis in Children

Last updated: September 5, 2023
Sponsor: China Medical University Hospital
Overall Status: Active - Recruiting

Phase

N/A

Condition

Eczema (Atopic Dermatitis)

Atopic Dermatitis

Allergy

Treatment

Vitamin D

Placebo

Clinical Study ID

NCT05523986
CMUH111-REC1-111
  • Ages 1-18
  • All Genders
  • Accepts Healthy Volunteers

Study Summary

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

Eligibility Criteria

Inclusion

Inclusion Criteria: Experimental group: Patients were 1-18 years old with EASI score moderate to severe atopicdermatitis, and atopic dermatitis was defined as three or more of the following statementsto be diagnosed as atopic dermatitis:

  1. skin itching
  2. typical skin symptoms (including eczematous dermatitis or lichenified dermatitis) andlocation (mostly on the extensor side of the face and body in infants and youngchildren, and on the flexor side of joints in adults)
  3. chronic persistent or recurrent dermatitis for more than 6 months.
  4. 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).

Exclusion

Exclusion Criteria:

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

Study Design

Total Participants: 300
Treatment Group(s): 2
Primary Treatment: Vitamin D
Phase:
Study Start date:
August 09, 2022
Estimated Completion Date:
June 30, 2025

Study Description

Atopic dermatitis (AD) is a chronic relapsing inflammatory skin disease with intermittent flares, affecting approximately 15% to 20% worldwide. Atopic dermatitis is clinically distinguished by pruritus, eczematous plaques, and a defective epidermal barrier. The pathology of AD is not entirely understood. It involves a complex interplay of dysfunctions of immune response, genetic and environmental factors (such as exposure to allergens and microbes). The control of patients with AD may be difficult to be achieved in some patients; this suggests the presence of some other associated factors. The findings obtained in both clinical and observational studies revealed that the deficiency of vitamin D may be a factor to be considered in the pathophysiology of AD. Vitamin D supplementation with standard treatment yielded positive clinical outcomes in mild and moderate AD. However, the potential benefit of vitamin D and its clinical correlation in AD is still uncertain. Thus, there is a need for more detailed and prospective studies.

The investigators will enroll children with atopic dermatitis and age and gender matched healthy children in China Medical University Children's Hospital. Briefly, the investigators interviewed subjects using EASI SCORE (defined as moderate or severe patients) and collected their venous blood and microbiome samples of nasal, skin and anal swab. Then, AD subjects will be given vitamin D or placebo for 6 months in a randomized, double-blind way. The participants will be asked to return to the outpatient clinic every month to assess the severity of AD. After six months of follow-up, their blood, nasal cavity, skin and intestinal bacterial samples were taken. All microbial analysis, allergen detection, vitamin D concentration, VDR, and DBP genotype will be analyzed by the core laboratory and bioinformatics center of CMUH.

The investigators believe this study can answer the cause-effect relationships of microbiota and vitamin D in the development of AD, and design a microbiota-related preventive and treatment strategy.

Connect with a study center

  • China Medical University Hospital

    Taichung, 404
    Taiwan

    Active - Recruiting

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