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Exploratory Study of the Cutaneous Penetration of Biodegradable Polymeric Microparticles in Atopic Dermatitis (MicroIskin)

12. oktober 2017 opdateret af: Centre Hospitalier Universitaire de Besancon
This proof of concept study aims to assess in patients suffering from atopic dermatitis if polymeric microparticles reach the pilosebaceous follicles of inflamed skin.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Current treatments of inflammatory skin disorders such as acne, psoriasis or atopic dermatitis are primarily topical. They have the advantage of allowing the administration of active substances directly to the skin lesions.

However local treatments may have drawbacks (complex application, local and/or systemic side effects...) and cause poor compliance.

The use of drug carriers is viewed as one of the most promising strategies to target and control the release of active substances to various skin sites. Polymeric microparticles have shown to have a better stability and a more sustained release pattern than other types of drug vehicles such as liposomes.

Based on the results obtained in our preclinical experiments, this proof of concept study aims to assess, in patients suffering from atopic dermatitis, if biodegradable polymeric microparticles reach the pilosebaceous follicles of inflamed skin which would in turn serve as a reservoir of active substance.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

21

Fase

  • Tidlig fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Frankrig
      • Besançon, Frankrig
        • Regional University Hospital

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Healthy volunteers:

    • Volunteers over 18
    • Male volunteers under 65 or women of childbearing age (with a negative pregnancy test obtained at least 3 weeks before inclusion)
    • Caucasian volunteers
    • Volunteers having never shown any type of skin lesions regardless of its origin especially any allergic skin reactions.
    • Volunteers having signed a free and informed consent form
    • Volunteers affiliated to a social security system

  • Patients:

    • Patients over 18
    • Male patients under 65 or women of childbearing age (with a negative pregnancy test obtained at least 3 weeks before inclusion)
    • Caucasian patients
    • Acute phase of atopic dermatitis with a SCORAD between 15 and 40
    • Patients suffering from atopic dermatitis skin lesions ≥ 1.5 cm² on the inside of the forearm
    • Patients having been treated by class II dermocorticoids with a two-week wash-out prior to inclusion
    • Patients having signed a free and informed consent form
    • Patients affiliated to a social security system

Exclusion Criteria:

  • Participants under 18
  • Pregnant or Breastfeeding women
  • Post-menopausal women
  • Patients having skin lesions adjacent to the selected area
  • Patients with complications of atopic dermatitis
  • SCORAD <15 or >40
  • Patients being treated with a topical or a systemic treatment influencing the skin penetration of the microparticles
  • Patients allergics to any component of the formulation
  • Patients using cosmetic products on their forearms
  • Patients planning to expose themselves to the sun
  • Patients with a known immune deficiency
  • Patients allergic to any product or device used before, during or after the skin biopsy
  • Patients suffering from known wound healing disorders
  • Patients with known inherited ou acquired hemostasis disorders
  • Patients unable to follow the protocol requirements
  • Patients currently involved in another clinical trial (or whose participation has ended less than 2 weeks before inclusion)
  • Patients who are not affiliated to a social security system
  • Patients in an exclusion period following participation in another clinical trial
  • Incapacitated adults
  • Participants placed under tutorship or curatorship
  • Participants under judicial protection

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: N/A
  • Interventionel model: Enkelt gruppeopgave
  • Maskning: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Group of healthy volunteers and group of patients
  • Healthy volunteers: Microparticles will be applied to the skin of the forearm and then a skin biopsy of this area will be performed
  • Patients suffering from atopic dermatitis: Microparticles will be applied to the skin of the forearm both to an area affected by dermatitis and to an area deprived from the disease. A skin biopsy of these two areas will be performed
Medicin: Biodegradable and biocompatible polymeric microparticles containing a fluorochrome applied to the skin followed by a skin biopsy

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Assessment of the penetration beyond the stratum corneum in human skin (fluorochrome contained in the particle will be detected by confocal microscopy)
Tidsramme: Day 3
  • Healthy volunteers: Microparticles are applied to the skin of the forearm and then a skin biopsy of this area is performed
  • Patients suffering from atopic dermatitis: Microparticles are applied to the skin of the forearm both to an area affected by dermatitis and to an area deprived from the disease. A skin biopsy of these two areas is performed.

The fluorochrome contained in the particle will be detected by confocal microscopy to determine whether the particles have reached beyond the stratum corneum
Day 3

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Assessment of the quantity of fluorescence (assessed by number of pixels on pictures taken with confocal microscopy)
Tidsramme: Day 3
This will be assessed by the number of pixels on pictures taken with confocal microscopy. It will allow for the comparison between patients/healthy volunteers and the comparison of affected/non-affected area in patients
Day 3

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Centre Hospitalier Universitaire de Besancon

Samarbejdspartnere

University of Franche-Comté

Efterforskere

  • Ledende efterforsker: Philippe HUMBERT, Centre Hospitalier Universitaire de Besancon

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

20. februar 2015

Primær færdiggørelse (Faktiske)

3. oktober 2017

Studieafslutning (Faktiske)

3. oktober 2017

Datoer for studieregistrering

Først indsendt

16. februar 2015

Først indsendt, der opfyldte QC-kriterier

23. februar 2015

Først opslået (Skøn)

24. februar 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

13. oktober 2017

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

12. oktober 2017

Sidst verificeret

1. oktober 2017

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • API/2012/32

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

Kliniske forsøg med Atopisk dermatitis

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Sponsorer og samarbejdspartnere

Medicinske tilstande

Narkotikainterventioner

CROs by country

CROs in Malawi

Betingelser

Sjældne sygdomme

Narkotikainterventioner

Kosttilskud

Sponsor / samarbejdspartnere

Placeringer

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Abonner