NCT02343783

Brief Summary

The purpose of this study is to characterize the cell (the basic building block of all living things) populations and inflammatory (pain and swelling) mediator responses in suction skin blister fluid after allergic skin reaction (ASR) \[rash\] induction with D. Pteronyssinus \[house dust mite (HDM)\], Alternaria alternata, or Aspergillus fumigatus allergens in participants with atopic dermatitis (AD) \[Skin rash, Eczema\] or allergic asthma (AA) \[breathing disorder in which there is a wheezing and difficulty breathing\].

Trial Health

90
On Track

Trial Health Score

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

Enrollment
46

participants targeted

Target at P50-P75 for early_phase_1

Timeline
Completed

Started Jan 2015

Shorter than P25 for early_phase_1

Geographic Reach
2 countries

7 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

January 1, 2015

Completed
15 days until next milestone

First Submitted

Initial submission to the registry

January 16, 2015

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 22, 2015

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2015

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2015

Completed
Last Updated

October 6, 2015

Status Verified

October 1, 2015

Enrollment Period

8 months

First QC Date

January 16, 2015

Last Update Submit

October 2, 2015

Conditions

Keywords

Atopic DermatitisAsthmaHealthySkin BlistersAdult Participants

Outcome Measures

Primary Outcomes (4)

  • Cell Concentration in Suction Skin Blister Fluid After Allergic Skin Reaction (ASR) Induction with D. Pteronyssinus (House Dust Mite [HDM]), Alternaria alternata, or Aspergillus fumigatus Allergens

    Cells in the aspirated skin blister fluid will be separated and processed for cell population analysis by flow cytometry and messenger RNA (mRNA) analysis.

    Hour 4 after the end of the blister induction

  • Cell Concentration in Suction Skin Blister Fluid After ASR Induction with D. Pteronyssinus (House Dust Mite), Alternaria alternata, or Aspergillus fumigatus Allergens

    Cells in the aspirated skin blister fluid will be separated and processed for cell population analysis by flow cytometry and mRNA analysis.

    Hour 24 after the end of the blister induction

  • Levels of Inflammatory Mediators in Suction Skin Blister Fluid After ASR Induction with D. Pteronyssinus (House Dust Mite), Alternaria alternata, or Aspergillus fumigatus Allergens

    The remaining fluid from aspirated skin blister fluid after separated and processed for cell population analysis will be assessed for inflammatory mediator responses. Inflammatory cytokines and other soluble mediators in blister fluid will be measured by immunoassay.

    Hour 4 after the end of the blister induction

  • Levels of Inflammatory Mediators in Suction Skin Blister Fluid After ASR Induction with D. Pteronyssinus (House Dust Mite), Alternaria alternata, or Aspergillus fumigatus Allergens

    The remaining fluid from aspirated skin blister fluid after separated and processed for cell population analysis will be assessed for inflammatory mediator responses. Inflammatory cytokines and other soluble mediators in blister fluid will be measured by immunoassay.

    Hour 24 after the end of the blister induction

Secondary Outcomes (3)

  • Success Percentage of Repeated Skin Blister Induction and Blister Fluid Aspiration

    Day 1 and 8

  • Cell Concentration in Suction Skin Blister Fluid After ASR Induction with Non-protease Allergens

    4 and 24 Hours after the end of the blister induction

  • Levels of Inflammatory Mediators in Suction Skin Blister Fluid After ASR Induction with Non-protease Allergens

    4 and 24 Hours after the end of the blister induction

Study Arms (1)

Healthy + Atopic Dermatitis + Allergic Asthmatic Participants

EXPERIMENTAL

Healthy participants will be enrolled in order to allow for training on the overall skin blister induction and fluid aspiration process. Participants with atopic dermatitis (AD) or allergic asthma (AA) will be observed for the use of induced skin blisters after allergic skin reaction (ASR).

Other: Allergic Skin Reaction (ASR) Testing and Skin Blister Induction

Interventions

Participants will not receive any intervention in this study. Healthy participants will be enrolled in order to allow for training on the overall skin blister induction and fluid aspiration process. The cell populations and inflammatory mediator responses in suction skin blister fluid after allergic skin reaction (ASR) in participants with atopic dermatitis (AD) or allergic asthma (AA) will be observed.

Healthy + Atopic Dermatitis + Allergic Asthmatic Participants

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Participant must have signed an informed consent document prior to any study related procedures indicating that they understand the purpose of and procedures required for the study and are willing to participate in the study
  • Participant must be willing/able to adhere to the study visit schedule and other requirements, prohibitions and restrictions specified in this protocol
  • \* For participants with Asthma:
  • Participant must have a physician documented diagnosis of asthma for at least 12 months before Screening
  • Participant must have an Asthma Control Questionnaire 6 (ACQ6) less than (\<) 1.5 at Screening
  • \* For participants with Atopic Dermatitis:
  • Participant must have a physician documented diagnosis of atopic dermatitis for at least 12 months before Screening based on UK refinement of the Hanifin and Rajka's diagnostic criteria
  • Participant must have atopic dermatitis with and Investigators Global Assessment (IGA) score of 2 to 4 at Screening

You may not qualify if:

  • Participant has taken any prohibited or restricted medications as noted below under Prestudy and Concomitant Therapy
  • Participant has received an investigational drug (including investigational vaccines) or used an invasive investigational medical device within 6 weeks or 5 half-lives (whichever is longer) before the Screening visit
  • \* For participants with Asthma:
  • Participant has a history of life-threatening asthma, defined as a history of respiratory arrest or requiring intubation for asthma
  • Participant had been admitted to a hospital for asthma in the 1 year before Screening
  • \* For participants with Atopic Dermatitis:
  • Participant has evidence of any other skin condition that would interfere with assessment of Atopic Dermatitis (AD)
  • Participant has active AD related infection or has had an active AD infection within 2 weeks of Screening (participants with evidence of colonization on skin swab testing but with no infection are allowed)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (7)

Unknown Facility

Antwerp, Belgium

Location

Unknown Facility

Merksem, Belgium

Location

Unknown Facility

Berlin, Germany

Location

Unknown Facility

Hamburg, Germany

Location

Unknown Facility

Hanover, Germany

Location

Unknown Facility

Kiel, Germany

Location

Unknown Facility

Mönchengladbach, Germany

Location

MeSH Terms

Conditions

Dermatitis, AtopicAsthmaBlister

Condition Hierarchy (Ancestors)

Skin Diseases, GeneticGenetic Diseases, InbornCongenital, Hereditary, and Neonatal Diseases and AbnormalitiesDermatitisSkin DiseasesSkin and Connective Tissue DiseasesSkin Diseases, EczematousHypersensitivity, ImmediateHypersensitivityImmune System DiseasesBronchial DiseasesRespiratory Tract DiseasesLung Diseases, ObstructiveLung DiseasesRespiratory HypersensitivitySkin Diseases, VesiculobullousPathological Conditions, AnatomicalPathological Conditions, Signs and Symptoms

Study Officials

  • Janssen Research & Development, LLC Clinical Trial

    Janssen Research & Development, LLC

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
early phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 16, 2015

First Posted

January 22, 2015

Study Start

January 1, 2015

Primary Completion

September 1, 2015

Study Completion

September 1, 2015

Last Updated

October 6, 2015

Record last verified: 2015-10

Locations