Pathophysiological Study of Characteristics of the Changes in the Cutaneous Immune System After Intradermal Antigen Injections (LBP003)
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Purpose
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
| Condition | Intervention |
|---|---|
|
Healthy Immunosuppressed |
Biological: Tuberculin antigen |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Intervention Model: Single Group Assignment Masking: Open Label Primary Purpose: Basic Science |
| Official Title: | LBP003: Characteristics of the Changes in the Cutaneous Immune System After Intradermal Antigen Injections |
- 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) [ Time Frame: 30 minutes, 4 hours or 72 hours ] [ Designated as safety issue: No ]
- Molecular analysis of cytokines and chemokines involved in recruitment and/or function of immunocompetent cells [ Time Frame: 30 minutes, 4 hours or 72 hours ] [ Designated as safety issue: No ]
- Comparison of changes in the cutaneous immune system between the three groups of subjects [ Time Frame: 30 minutes, 4 hours or 72 hours ] [ Designated as safety issue: No ]
| Enrollment: | 36 |
| Study Start Date: | November 2008 |
| Study Completion Date: | September 2009 |
| Primary Completion Date: | September 2009 (Final data collection date for primary outcome measure) |
-
Biological: Tuberculin antigen
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)
Eligibility| Ages Eligible for Study: | 18 Years to 75 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
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
Contacts and Locations
More Information
No publications provided
| Responsible Party: | Jean-François NICOLAS, MD, Hospices Civils de Lyon |
| ClinicalTrials.gov Identifier: | NCT00716989 History of Changes |
| Other Study ID Numbers: | 2006.457 |
| Study First Received: | July 15, 2008 |
| Last Updated: | December 22, 2010 |
| Health Authority: | France: Direction Générale de la Santé |
Keywords provided by Hospices Civils de Lyon:
|
Cutaneous immune system innate immunity tuberculin skin tests intradermal vaccination |
pathophysiology Healthy subjects Immunosuppressed patients |
ClinicalTrials.gov processed this record on May 23, 2013