Pilot Study of Ustekinumab for Subjects With Chronic Atopic Dermatitis

Randomized Pilot Study of Ustekinumab for Subjects With Chronic Atopic Dermatitis Who Have Sub-optimal Response to Prior Therapy

Atopic dermatitis (AD) is a chronic disease associated with intense itching, which affects most aspects of everyday life in the majority of patients. Acute inflammation and extensor/facial involvement is common in infants, whereas chronic inflammation increases in prevalence with age, as do localization to flexures. AD has a complex background characterized by immune activation, increased epidermal thickness in chronic diseased skin, and defective barrier function. In normal, healthy skin, the outer layer of the epidermis, the stratum corneum is made up flattened dead cells called corneocytes held together by a mixture of lipids and proteins. The stratum corneum and, in particular, the lipid layer are vital in providing a natural barrier function that locks water inside the skin and keeps allergens and irritants out. In people with AD, the barrier function is defective, which leads to dry skin. As the skin dries out, it cracks allowing allergens and irritants to penetrate.

Mild AD can be controlled with emollients and topical medications. However, moderate to severe AD is extremely difficult to control and requires systemic treatment that is often unsatisfactory due to impracticality and lack of effectiveness. Only three therapeutic options exist for moderate to severe AD, including: 1) oral steroids 2) cyclosporine A (CsA), that is not widely used in the US as it is not FDA approved for AD and 3) ultraviolet phototherapy. Oral steroids and CsA treatments have major side effects and UV radiation therapy is highly inconvenient for patients. Several biologic medications, such as TNF-alpha inhibitors, are effective, convenient, and relatively safe therapies for psoriasis, but have thus far not shown efficacy in AD. Ustekinumab is a unique biologic medication that may specifically target AD.

The investigators study will determine whether there is a reversal of the skin thickness and the immune pathways involved in the disease during treatment with Ustekinumab and what specific immune cells are involved. The investigators are also interested to understand how the clinical reversal of the disease will correlate with tissue reversal of the disease.

Study Overview

• Status: Completed
• Conditions: Atopic Dermatitis
• Intervention / Treatment: Drug: Ustekinumab; Other: Placebo

Detailed Description

In psoriasis, epidermal hyperplasia is driven by underlying immune activation, whether as a direct response to IL-20 family cytokines that induces hyperplasia and inhibits keratinocyte terminal differentiation or as an indirect response to immune-mediated injury to keratinocytes. The epidermal reaction in psoriasis is largely restored to normal with selective immune suppression. Hence, one might hypothesize that similar epidermal responses should occur in the presence of "generalized" cellular immune activation, in diseases with similar inflammatory infiltrate and epidermal hyperplasia, such as AD. In fact, psoriasis and AD share features of dense T-cells and dendritic cell infiltrates, as well as over-expression of IL-22 in skin lesions. These diseases also share similar epidermal hyperplasia in their chronic phases.

Work from the investigators group showed that IL-22 is a key cytokine in the pathogenesis of both AD and psoriasis. The investigators have demonstrated that in psoriasis, ustekinumab suppresses the production of IL-12, IL-23, and IL-22. Additionally, by RT-PCR the investigators demonstrated that the mRNA expression of p40 cytokine and the IL23R is up-regulated in AD as compared to both normal skin and psoriasis. The investigators therefore hypothesize that ustekinumab will suppress IL-22 and possibly also p40 production in AD lesions and reverse both the epidermal growth/differentiation defects and the underlying immune activation, and hence will suppress disease activity. Interestingly, p40 was also found to be significantly up-regulated in non-lesional AD skin as compared with normal skin.

Although AD is thought to be predominately a disease of Th2-type cells, in the chronic stage, there is large Th1 component. To date, the precise mechanism by which sequential activation of Th2 and Th1 cells in AD is achieved remains unknown. IL-12 induces the differentiation and maturation of human Th cells into Th1-type cells. Recent circumstantial evidence suggests that in AD patients IL-12 may facilitate a change from the Th2-type to a Th1 cytokine profile. IL-12 was recently shown to be highly elevated in pediatric AD and its levels were strongly associated with disease severity.

Expression of IL-12 p40 mRNA is significantly enhanced in lesional skin from AD, suggesting that the enhanced local production of IL-12 in dendritic cells and macrophages may be responsible for the increased production of IFN-γ in chronic lesions potentially suggesting that IL-12 may have a pivotal role in promoting inflammation in atopic dermatitis. Topical steroids which constitute a mainstay of therapy in AD are known to strongly down-regulate IL-12 expression, possibly also indicating that targeted anti IL-12 therapy might important role in treating AD.

Recently, the Th1/Th2 paradigm in autoimmunity and allergy has been revisited to include a role for a new population of IL-17-producing Th cells known as Th17. Th17 cells are characterized by the production of inflammatory cytokines such as IL-17A, IL-17F, IL-22, and IL-26. One of the key factors involved in naive Th-cell commitment to a Th17 phenotype is IL-23.

Patients with acute AD were found to have increased Th17 T-cells in peripheral blood by flow cytometry and intracellular cytokine staining 26 as well as by immunohistochemistry (IHC) in lesions. Since IL-23 is the major inducer of Th17 T-cells, as well as "T22" T-cells, neutralization of IL-23 could potentially result in both decreased Th17 signal in acute AD as well as decreased "T22/IL22" signal. Therefore the investigators postulate that ustekinumab in AD will act both inhibiting the IL-12-dependent Th1 shift in chronic AD stage as well as the pathogenic IL-22/"T22" axis in this disease.

• Study Type: Interventional
• Enrollment (Actual): 32
• Phase: Phase 2

Contacts and Locations

Study Locations

• United States
  • New York
    • New York, New York, United States, 10065
      • Rockefeller University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years to 75 years (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Are male or female and ages 18-75.
• Have moderate to severe AD (as determined using the Objective SCORAD scale ≥15) and a history of therapeutic failure with at least two of the three different treatment categories as listed within the inclusion criteria.
• Patients must have tried and failed at least two of the three treatment categories of the following treatment modalities:

Category 1 : Hydration plus topical steroids and/or antibiotics Category 2: Systemic Steroids and/or Phototherapy Category 3: Cyclosporine and/or Other Immunomodulators (Methotrexate, CellCept, Immuran, topical Calcineurin inhibitors)

• Patients who initially respond to cyclosporine but cannot sustain a response after the drug is discontinued will also be eligible.
• Patients that have contraindications to category 3 drugs will also be allowed to participate in the study.
• A washout period prior to screening will be required for the following medications:
• Cyclosporine/Oral Steroids/Imuran/Mycophenolate Mofetil/Other systemic immunosuppressants: 4 weeks
• Phototherapy/Moderate to High Potency Topical Corticosteroids: 2 weeks
• Women of childbearing potential must test negative for pregnancy and be using adequate birth control measures (e.g., Abstinence, oral contraceptives, intrauterine device, barrier method with spermicide, or have had a tubal ligation or a hysterectomy) during the study and for 6 months after receiving the last treatment. Likewise, men capable of fathering children must also use appropriate methods of birth control (e.g., abstinence, barrier methods with spermicide, or have had surgical sterilization such as vasectomy).
• Patients must be in general good health in the opinion of the investigator.
• Patients with stable chronic asthma, treated with inhaled corticosteroids, will be eligible.
• The screening laboratory tests must meet the following criteria:

Hemoglobin >9 g/dl WBC count >3.5 x 109 cells/L Neutrophils >1.5 x 109 cells/L Platelets >100 x 109 cells/L AST/SGOT and ALT/SGPT levels must be within 2 times the upper limit of normal for the laboratory conducting the test. Alkaline phosphatase levels must be within 2 times the upper limit of normal for the laboratory conducting the test.

• Are PPD negative at the time of screening.
• The patients will be allowed to use topical therapy during the washout period. These will include emollients, and mild steroids (class 6 or 7), except on one target area that will be the site for the skin biopsies.

Exclusion Criteria:

• Previous treatment with ustekinumab or other agent that specifically targets IL-12 or 23
• Have a history of latent or active granulomatous infection, including TB, histoplasmosis, or coccidioidomycosis, prior to screening, or are frequently in contact with individuals who carry active TB infection or a non-tubercular mycobacterial infection or an opportunistic infection
• Are HIV positive by history or POCT on the screening visit
• Have documented current active hepatitis B (surface antigen positive or asymptomatic chronic carriers) or hepatitis C infection (anti-HCV positive), by history and/or screening test
• Have a history of substance abuse (drug or alcohol) within the past year before screening
• Have any serious concomitant illness that could require the use of systemic corticosteroids or otherwise interfere with the patient's participation in the trial
• Pregnant women or women that are breast-feeding or plan to breast feed. Women of childbearing age who plan to get pregnant within 15 weeks of stopping study agent

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Crossover Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Treatment Arm (Ustekinumab first, Then Placebo); Since there is a crossover design, each patient will be in the treatment arm for 16 weeks of the study.	Drug: Ustekinumab; Injection of monoclonal antibody against the p40 subunit of IL-12/23; Other Names: Stelara; Other: Placebo; Injection of placebo
Placebo Comparator: Placebo Arm (Placebo first, Then Ustekinumab); Since there is a crossover design, each patient will be in the placebo arm for 16 weeks of the study. If a patient begins in the placebo arm, they will switch over to the treatment arm at week 16.	Drug: Ustekinumab; Injection of monoclonal antibody against the p40 subunit of IL-12/23; Other Names: Stelara; Other: Placebo; Injection of placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Proportion of SCORAD-50 Response at Week 16.	Greater improvement from their baseline objective SCORAD (SCORing Atopic Dermatitis) at Week 16. The efficacy variable for each randomized group is the proportion of subjects who achieve an improvement of 50% or greater from their baseline objective SCORAD at Week 16 (at crossover). SCORAD-50 is the percentage of decrease in baseline SCOARD at Week 16. SCORAD is a clinical tool used to assess the extent and severity of eczema. Calculation is based on extent of involvement (skin involvement) and subjective symptoms of itching and loss of sleep. The SCORAD scale ranges from 0 (minimum, lowest possible score, Mild severity) to 103 (maximum, highest possible score, Severe severity) [last observation carry forward].	Week 16

Collaborators and Investigators

• Sponsor: Rockefeller University
• Investigators: Principal Investigator: James Krueger, MD PhD, Rockefeller University

Study record dates

Study Major Dates

• Study Start: March 1, 2013
• Primary Completion (Actual): March 1, 2015
• Study Completion (Actual): March 1, 2015

Study Registration Dates

• First Submitted: February 28, 2013
• First Submitted That Met QC Criteria: March 5, 2013
• First Posted (Estimate): March 7, 2013

Study Record Updates

• Last Update Posted (Actual): March 14, 2018
• Last Update Submitted That Met QC Criteria: February 15, 2018
• Last Verified: February 1, 2018

More Information

Terms related to this study

• Keywords: Atopic Dermatitis; Eczema
• Additional Relevant MeSH Terms: Skin Diseases; Immune System Diseases; Hypersensitivity, Immediate; Genetic Diseases, Inborn; Skin Diseases, Genetic; Hypersensitivity; Skin Diseases, Eczematous; Dermatitis; Eczema; Dermatitis, Atopic; Dermatologic Agents; Ustekinumab
• Other Study ID Numbers: JKR-0737

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: UNDECIDED