Defining the Skin and Blood Biomarkers of Ichthyosis
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- This is an observational study: the protocol does not assign a study treatment.
- Who it may be relevant to
- Registry conditions: Ichthyosis, Netherton Syndrome. Basic parameters: 1 year — 60 years · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- United States
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
Ichthyosis is a group of genetic skin disorders that present with dry, thickened, scaly, or flaky skin. As of today, there is no cure or treatment. Doctors can only treat the dry skin with different types of emollients to soften the scale. A deeper understanding of this disease is required to develop better treatments. There are different types of cells and cell-produced signals (biomarkers) that are being studied in order to help find these new treatments. Looking at biomarkers has been successful in helping us to understand other skin disorders better. The purpose of this study is to determine which blood and skin biomarkers characterize ichthyosis. Hypothesis: We predict that the biomarkers correlating with disease activity in Netherton syndrome will be different than the biomarkers found to correlate with the lamellar and other ichthyosis phenotype.
Detailed description
Objectives:
1. To define a panel of skin and blood biomarkers associated with disease activity and pruritus in Netherton syndrome, lamellar ichthyosis, and other ichthyosis subtypes. 2. To determine if blood samples can serve as surrogates for skin immune activation and will correlate with disease severity. 3. To determine FLG, SPINK5, TGM1, or other mutation via buccal/saliva samples in ichthyosis subjects 4. To determine differences in alterations of epidermal lipids and proteins in the outer stratum corneum of epidermis collected from tape strips in patients with ichthyosis compared to the general population. There will also be a difference detected in epidermal lipids from blood samples.
Primary outcome measures
- Cellular infiltrates [Time frame: One year]
- Gene expression [Time frame: One year]
Secondary outcome measures (1)
- Correlation of biomarkers to quality of life [Time frame: One year]
Eligibility criteria
Inclusion criteria
- Control and ichthyosis subjects may be of either sex and must be between 1-60 years of age at the time of enrollment
- Ichthyosis subjects include individuals with a diagnosis Netherton syndrome, lamellar ichthyosis, or other ichthyosis subtypes
- Ichthyosis subjects should not have administered systemic immunosuppressant therapy in the month before the study
- Ichthyosis subjects should not use topical immunosuppressants in the week before the study
- Ichthyosis subjects should not have applied emollients to the planned biopsy sites within 12 hours before biopsy, but can be applied elsewhere
- Controls may have no inflammatory disease, atopy, or obvious xerosis (urticaria, food allergy, allergic rhinitis or conjunctivitis, asthma)
- Controls for skin sampling may have no observable abnormality in the sampled skin and, to further assure the normality of the "normal" skin edges, must not have evidence of inflammation or epidermal change in the lesion to be surgically removed
- Subjects and guardians of minors must sign the approved IRB consent form(s) prior to initiation of the study protocol
Exclusion criteria
- Subjects who are unable to give informed consent or assent
- Subjects who administered anti-inflammatory systemic and topical therapy or emollients that do not comply with inclusion criteria prior to blood and biopsy sampling
- Subjects whose main diagnosis is deemed unsafe by the study investigator for study participation
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: Yes
Study design
- Observational model
- Case-control
Study locations
United States · 4 centers
- Ann & Robert H. Lurie Children's Hospital of Chicago — Chicago
- Northbrook Lurie Children's Outpatient Clinic — Chicago
- Northwestern University — Chicago
- Icahn School of Medicine at Mount Sinai — New York
Identifiers
NCT: NCT03417856 · 2014-15801