Study in Allergic Adults to Support the Development of Immunological Assays
A Study in Adult Subjects With Allergy to Support the Development of Immunological Assays
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
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Gent, Belgien, 9000
- GSK Investigational Site
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La Louvière, Belgien, 7100
- GSK Investigational Site
-
-
Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria:
- Subjects who the investigator believes can and will comply with the requirements of the protocol.
- Written informed consent obtained from the subject.
- Healthy subjects (except the condition studied in the ALLERGY group).
- A male or female between, and including 18 and 45 years of age at the time of study start.
- Subject presenting moderate to severe clinical symptoms of allergy within the week before enrolment (only for ALLERGY group).
- Subjects suffering from seasonal allergy to birch pollen previously documented by a medical history (only for ALLERGY group).
- A positive skin prick test response realised and/or a positive test for specific IgE against birch within the last 5 years (only for ALLERGY group).
Exclusion Criteria:
- Any known or clinical signs of anaemia or any condition that would preclude the drawing of blood as described in the protocol.
- Receipt of blood products 120 days prior to study visit.
- Receipt of immunoglobulin 120 days prior to study visit.
- Use of any investigational or non-registered product within 30 days preceding the study visit.
- Concurrently participating in another clinical study, at the time of the study visit, in which the subject has been or will be exposed to an investigational or a non-investigational product.
- Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history.
- Any confirmed or suspected autoimmune or inflammatory disorders.
- Administration of systemic or inhaled anti-inflammatory medications and, in particular, inhaled corticoid-steroids and cromoglycates within 30 days preceding the study visit. Purely local medications such as intranasal steroids or systemic symptomatic medications such as antihistamines and beta agonists are allowed.
- Chronic administration of immunosuppressants or other immune-modifying drugs within six months prior to the study visit.
- Pregnant or lactating female.
- Any past or current birch-specific immunotherapy (only for ALLERGY group).
- Any allergic disease as established by medical history before study start (only for CONTROL group).
- Family history of allergic diseases in the first degree family members (only for CONTROL group).
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Andet
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Andet: Allergy Group
Subjects with ages ranging from 18-45 years and inclusive, presenting symptomatic allergy to birch pollen.
|
Blood sampling
|
|
Andet: Control Group
Subjects with ages ranging from 18-45 years and inclusive, with no known allergies.
|
Blood sampling
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Subject Responders With Antigen Specific Lymphocytes T Helper 2 (Th2) Cluster of Differentiation 4+ (CD4+) T Cells Expressing Cytokines
Tidsramme: At Day 0
|
Among cytokines expressed were interleukin-4 (IL-4), interleukin-5 (IL-5) and/or interleukin-13 (IL-13), as measured by flow cytometry and multiplex assays. Responders were defined as subjects with a concentration after Bet v 1 stimulation above Percentile 95 (P95) (determined on Betula verucossa 1[Bet v 1] Bromodeoxyuridine + [BrdU+] subjects) of all concentrations after medium only stimulation |
At Day 0
|
|
Number of Subject Responders With Antigen Specific Th2 CD4+ T Cells Expressing Cytokines - Amended Definition
Tidsramme: At Day 0
|
Among cytokines expressed were IL-4, IL-5 and/or IL-13, as measured by flow cytometry and multiplex assays. Responders to a specific cytokine were defined as subjects with concentration for that respective cytokine after Bet v 1 stimulation above P95 of the concentration for that cytokine after medium only stimulation for all subjects (Total cohort), AND at least 5 times higher than their own respective concentration after medium only stimulation. |
At Day 0
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
Number of Subject Responders With Antigen-Th2 CD4+ T Cells Expressing Interferon-gamma (IFN-γ)
Tidsramme: At Day 0
|
Responders are defined as subjects with a concentration after Bet v 1 stimulation above P95 (determined on Bet v 1 BrdU+ subjects) of all concentrations after medium only stimulation
|
At Day 0
|
|
Number of Subject Responders With Antigen-Th2 CD4+ T Cells Expressing IFN-γ - Amended Definition
Tidsramme: At Day 0
|
Responders to a specific cytokine were defined as subjects with concentration for that respective cytokine after Bet v 1 stimulation above P95 of the concentration for that cytokine after medium only stimulation for all subjects (Total cohort), AND at least 5 times higher than their own respective concentration after medium only stimulation.
|
At Day 0
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Datoer for undersøgelser
Studer store datoer
Studiestart (Faktiske)
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- 115315
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