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Pathophysiological Study of Characteristics of the Changes in the Cutaneous Immune System After Intradermal Antigen Injections (LBP003)

22. desember 2010 oppdatert av: Hospices Civils de Lyon

LBP003: Characteristics of the Changes in the Cutaneous Immune System After Intradermal Antigen Injections

The goal of the vaccination is to induce humoral (antibody) and intracellular (T lymphocyte) responses. Various data show that intradermal vaccination is more efficient than intramuscular vaccination: the humoral response is statistically better after intradermic vaccination, compared to intramuscular vaccination, even in target populations such as older subjects or immunosuppressed patients

Studieoversikt

Status

Avsluttet

Forhold

Intervensjon / Behandling

Biologisk: Tuberculin antigen

Detaljert beskrivelse

Realisation of 2 groups of healthy subjects with 2 intradermal injection of 50 µl of tuberculin + 2 intradermal injection of 50 µl of physiological serum. 5 biopsy performed on 2 Tuberculin injection site, 2 physiological serum site and 1 on healthy skin site :

Group A : healthy young subjects(18 to 40 years old) : 18 subjects
Sub-group A1 (biopsy 30 minutes after injection) : 6 subjects
Sub-group A2 (biopsy 4 hours after injection) : 6 subjects
Sub-group A3 (biopsy 72 hours after injection) : 6 subjects
Group B : healthy old subjects(60 to 75 years old) : 18 subjects
Sub-group B1 (biopsy 30 minutes after injection) : 6 subjects
Sub-group B2 (biopsy 4 hours after injection) : 6 subjects
Sub-group B3 (biopsy 72 hours after injection) : 6 subjects

Determination of the best time (30 minutes, 4 hours or 72 hours)for intradermal vaccination caracteristics after group A and B data analysis. From these results, last group of immunosuppressed patients performed:Group C with 6 immunosuppressed patients (18 to 60 years old)

Studietype

Intervensjonell

Registrering (Faktiske)

Fase

Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiesteder

Frankrike
- - Pierre-benite, Frankrike, 69 495
    - Centre Hospitalier LYON SUD

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

Both genders eligible for study.
Female participants must use a contraceptive method.
Tuberculin skin test between 1 and 15mm
Participants must be able to understand and sign the Informed Consent, and comply with all aspects of the protocol.
Subjects registered in a social security system or with health insurance cover
First group: Healthy subjects aged from 18 to 75 years with 2 subgroups: 18-40 and 60-75 year old subjects
Second group: Patients with kidney transplants of longer than 6 months on immunosuppressive treatment

Exclusion Criteria:

Pregnant or lactating women.
Previous allergic reaction to tuberculin skin test
Active skin disease on testing zone
Patients with a clinically significant disease (chronic, recurrent or active)
Local or systemic medication which interacts with the outcome measures.
Patients deprived of their civic rights, in custody, or under the care of a tutorial, judiciary or administrative body.
Patients relevant of a protection measure
Patients in a critical medical situation
Patients with a personal situation evaluated by the investigator as unable to give an optimal participation in the study, or where it could constitute a risk for the patient
Linguistic barrier or psychological profile disabling the patient from signing the consent form
Patient still in an exclusion period following participation in another clinical trial
Patients having earned more than 4500€ in indemnities following participation in clinical trials during the last 12 months, including this study

For group 1 only:

Systemic corticotherapy or immunosuppressive treatment within the 2 weeks before first visit or within 2 weeks before the third visit or the biopsies.
Systemic non anti-inflammatory drugs the week before the first visit or within 1 week before the third visit or the biopsies

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

Primært formål: Grunnvitenskap
Tildeling: Ikke-randomisert
Intervensjonsmodell: Enkeltgruppeoppdrag
Masking: Ingen (Open Label)

Hva måler studien?

Primære resultatmål

Resultatmål	Tidsramme
Cellular changes of recruited cells by immunochemical and histological analysis in the three groups of subjects (healthy young subjects, healthy old subjects and immunosuppressed patients) Tidsramme: 30 minutes, 4 hours or 72 hours	30 minutes, 4 hours or 72 hours

Sekundære resultatmål

Resultatmål	Tidsramme
Molecular analysis of cytokines and chemokines involved in recruitment and/or function of immunocompetent cells Tidsramme: 30 minutes, 4 hours or 72 hours	30 minutes, 4 hours or 72 hours
Comparison of changes in the cutaneous immune system between the three groups of subjects Tidsramme: 30 minutes, 4 hours or 72 hours	30 minutes, 4 hours or 72 hours

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Hospices Civils de Lyon

Etterforskere

Hovedetterforsker: Jean-François NICOLAS, MD, Hospices Civils de Lyon

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart

1. november 2008

Primær fullføring (Faktiske)

1. september 2009

Studiet fullført (Faktiske)