NCT01494142

Brief Summary

The purpose of this multi-center, clinical registry study is to determine genetic markers associated with susceptibility of AD patients to infections and to also serve as a potential participant database for future studies.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
3,387

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Aug 2011

Longer than P75 for all trials

Geographic Reach
1 country

9 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

Study Start

First participant enrolled

August 1, 2011

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

October 31, 2011

Completed
2 months until next milestone

First Posted

Study publicly available on registry

December 16, 2011

Completed
6.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 7, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

February 7, 2018

Completed
Last Updated

September 19, 2018

Status Verified

September 1, 2018

Enrollment Period

6.5 years

First QC Date

October 31, 2011

Last Update Submit

September 17, 2018

Conditions

Keywords

RegistryAtopic DermatitisEczema HerpeticumGWASStaphylococcus aureus

Outcome Measures

Primary Outcomes (2)

  • Genotype and sequence data from ADEH+ and ADEH- participants.

    Day 1

  • Genotype and sequence data from ADEH- participants with and without bacterial colonization with S. aureus.

    Day 1

Secondary Outcomes (11)

  • Single Nucleotide Polymorphism (SNP) and Copy Number Variant (CNV) genotype data for candidate genes, including but not limited to Claudin-1 (CLDN1) and Filaggrin (FLG).

    Day 1

  • SNP genotype data for candidate genes, including but not limited to CLDN1 and FLG, validated in samples from an independent AD population.

    Day 1

  • Targeted deep resequencing of candidate genes, including but not limited to CLDN1.

    Day 1

  • Analysis of S. aureus isolates for antibiotic sensitivity

    Day 1

  • Analysis of S. aureus isolates for staphylococcal cassette chromosome (SCC) mec DNA elements.

    Day 1

  • +6 more secondary outcomes

Study Arms (5)

ADEH-Staph+

Atopic Dermatitis without a history of Eczema Herpeticum and with S. aureus skin colonization. A minimum of 1100 participants will be enrolled; we will target 500 Non-Hispanic Caucasian, 300 Non-Hispanic African American, and 300 Mexican American Caucasian ADEH-Staph+ participants. Although we will target these three groups, no racial/ethnic groups will be excluded.

ADEH-Staph-

Atopic Dermatitis without a history of Eczema Herpeticum and without S. aureus skin colonization. A minimum of 1100 participants will be enrolled; we will target 500 Non-Hispanic Caucasian, 300 Non-Hispanic African American, and 300 Mexican American Caucasian ADEH-Staph- participants. Although we will target these three groups, no racial/ethnic groups will be excluded.

ADEH+

Atopic Dermatitis with previous or current Eczema Herpeticum.We will try to include a minimum of 150 Non-Hispanic Caucasian ADEH+ participants. ADEH+ participants of other racial/ethnic groups will not be excluded

ADEV+

Atopic Dermatitis with previous or current Eczema Vaccinatum. ADEV+ sub-phenotype is very rare so all eligible participants will be enrolled.

Non-atopic

Non-atopic healthy participants. A minimum of 250 non-atopic participants will be enrolled. Non-atopic participants will serve as a control group for the genetic, biomarker, Staph characterization, and microbiome studies.

Eligibility Criteria

Age8 Months - 80 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

A minimum of 1100 ADEH-Staph+ participants and a minimum of 1100 ADEH-Staph- participants 3-80 years of age will be enrolled. In addition, ADEH+, ADEV+, and Non-atopic participants 8 months to 80 years of age will be enrolled. It is unknown whether Staph colonization status will change as younger participants get older. For this reason, the lower age limit for inclusion of ADEH- participants is 3 years rather than 8 months to ensure that characterization of their Staph+ vs. Staph- state is more accurate

You may qualify if:

  • Participants who meet all of the following criteria are eligible for enrollment. Participants may be reassessed if not initially eligible.
  • ADEH+ and Non-atopic males and females ages 8 months to 80 years, inclusive, at the time of Enrollment, and ADEH- males and females ages 3 years to 80 years, inclusive, at the time of Enrollment.
  • Who are willing to sign the informed consent form or whose parent or legal guardian is willing to sign the informed consent form (age appropriate) prior to initiation of any study procedures.
  • Who are willing to sign the assent form, if age appropriate.
  • Who meet criteria for one of the diagnostic groups (ADEH-Staph+, ADEH-Staph-, ADEH+, ADEV+, Non-atopic) as defined in the ADRN Standard Diagnostic Criteria and the Staphylococcus aureus Colonization Criteria.

You may not qualify if:

  • Participants who meet any of the following criteria are not eligible for enrollment.
  • Who have any skin disease other than AD that might compromise the stratum corneum barrier (e.g., bullous diseases, psoriasis, cutaneous T cell lymphoma \[also called Mycosis Fungoides or Sezary syndrome\], dermatitis herpetiformis, Hailey-Hailey, or Darier's disease).
  • Who have a history of systemic immunological illness (e.g., immunodeficiency disorders such as human immunodeficiency virus \[HIV\] or lupus erythematosus) other than the condition being studied.
  • Who have a first degree relative already enrolled in the study.
  • Who are determined not to be eligible in the opinion of the Investigator.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (9)

Children's Hospital Los Angeles

Los Angeles, California, 90027, United States

Location

National Jewish Health

Denver, Colorado, 80206, United States

Location

Northwestern University

Chicago, Illinois, 60611, United States

Location

Ann & Robert H. Lurie Children's Hospital of Chicago

Chicago, Illinois, 60614, United States

Location

Boston Children's Hospital

Boston, Massachusetts, 02115, United States

Location

Icahn School of Medicine at Mount Sinai

New York, New York, 10029, United States

Location

University of Rochester Medical Center

Rochester, New York, 14642, United States

Location

Oregon Health & Science University

Portland, Oregon, 97239, United States

Location

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, 19104, United States

Location

Related Publications (5)

  • Gao L, Bin L, Rafaels NM, Huang L, Potee J, Ruczinski I, Beaty TH, Paller AS, Schneider LC, Gallo R, Hanifin JM, Beck LA, Geha RS, Mathias RA, Barnes KC, Leung DYM. Targeted deep sequencing identifies rare loss-of-function variants in IFNGR1 for risk of atopic dermatitis complicated by eczema herpeticum. J Allergy Clin Immunol. 2015 Dec;136(6):1591-1600. doi: 10.1016/j.jaci.2015.06.047. Epub 2015 Sep 3.

  • Shi B, Bangayan NJ, Curd E, Taylor PA, Gallo RL, Leung DYM, Li H. The skin microbiome is different in pediatric versus adult atopic dermatitis. J Allergy Clin Immunol. 2016 Oct;138(4):1233-1236. doi: 10.1016/j.jaci.2016.04.053. Epub 2016 Jun 29. No abstract available.

  • Nakatsuji T, Chen TH, Two AM, Chun KA, Narala S, Geha RS, Hata TR, Gallo RL. Staphylococcus aureus Exploits Epidermal Barrier Defects in Atopic Dermatitis to Trigger Cytokine Expression. J Invest Dermatol. 2016 Nov;136(11):2192-2200. doi: 10.1016/j.jid.2016.05.127. Epub 2016 Jul 2.

  • Merriman JA, Mueller EA, Cahill MP, Beck LA, Paller AS, Hanifin JM, Ong PY, Schneider L, Babineau DC, David G, Lockhart A, Artis K, Leung DY, Schlievert PM. Temporal and Racial Differences Associated with Atopic Dermatitis Staphylococcusaureus and Encoded Virulence Factors. mSphere. 2016 Dec 7;1(6):e00295-16. doi: 10.1128/mSphere.00295-16. eCollection 2016 Nov-Dec.

  • Nakatsuji T, Chen TH, Narala S, Chun KA, Two AM, Yun T, Shafiq F, Kotol PF, Bouslimani A, Melnik AV, Latif H, Kim JN, Lockhart A, Artis K, David G, Taylor P, Streib J, Dorrestein PC, Grier A, Gill SR, Zengler K, Hata TR, Leung DY, Gallo RL. Antimicrobials from human skin commensal bacteria protect against Staphylococcus aureus and are deficient in atopic dermatitis. Sci Transl Med. 2017 Feb 22;9(378):eaah4680. doi: 10.1126/scitranslmed.aah4680.

Related Links

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood DNA, whole blood RNA,blood cards, blood clots, serum, skin swabs, and skin swab isolates will be retained.

MeSH Terms

Conditions

Dermatitis, AtopicKaposi Varicelliform EruptionStaphylococcal Infections

Condition Hierarchy (Ancestors)

Skin Diseases, GeneticGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesDermatitisSkin DiseasesSkin and Connective Tissue DiseasesSkin Diseases, EczematousHypersensitivity, ImmediateHypersensitivityImmune System DiseasesHerpes SimplexHerpesviridae InfectionsDNA Virus InfectionsVirus DiseasesInfectionsSkin Diseases, ViralSkin Diseases, InfectiousGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and Mycoses

Study Officials

  • Lisa Beck, MD

    University of Rochester

    STUDY CHAIR
  • Kathleen Barnes, PhD

    Johns Hopkins Asthma and Allergy Center

    STUDY CHAIR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 31, 2011

First Posted

December 16, 2011

Study Start

August 1, 2011

Primary Completion

February 7, 2018

Study Completion

February 7, 2018

Last Updated

September 19, 2018

Record last verified: 2018-09

Locations