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Efficacy Safety Study of Flu Vaccine in Immunodepression Patients

2014-08-27 03:17:38 | BioPortfolio

Summary

The primary purpose of the study is to compare the efficacy and safety of influenza vaccine in patients with inflammatory bowel disease (IBD) receiving immunosuppressive therapy with patients not receiving immunosuppressants .

The main objective of the study is to evaluate the humoral immunogenicity of influenza vaccination in patients with IBD

Description

Annual vaccination against influenza is recommended for those at high risk of complications, particularly among patients with immunodeficiency including those resulting from immunosuppressive treatments administered for a chronic inflammatory bowel disease (IBD). However, published data showing that influenza vaccination coverage is low in this population (<30%) due to lack of data on the effectiveness of vaccination in these patients and the theoretical risk of negative impact on the evolution of IBD.

To improve influenza vaccination coverage of the population treated by immunosuppressants for a chronic IBD, it is essential to have data on the effectiveness of vaccination in these populations.

The research aims to evaluate the immunogenicity of influenza vaccination in patients followed for a chronic IBD.

Factors in choice of study population were as follows:

1. IBD is a common disease. Among the inflammatory diseases treated with immunosuppressants and reaching patients under 65 years, IBD are among the most frequent. They result from an abnormal immune response to gut flora and their management often requires the prescription of immunosuppressive drugs (azathioprine, methotrexate, in particular) and more recently TNF-blockers;

2. the existence of vaccine recommendations published recently for specific patients on immunosuppressive therapy at greatest risk of complications related to influenza;

3. the fact that vaccinations have not been implicated in the pathogenesis of the disease;

4. data showing that vaccination recommendations are poorly followed in this population. A recently published work found vaccination coverage against influenza of only 28% in a cohort of 169 patients treated for IBD;

The methodology chosen is a phase III, prospective, open, vaccine trial. The primary endpoint is the humoral immunogenicity induced by the vaccine.

The study is scheduled on 2 successive years to assess the value of annual vaccination repeated in this population treated with immunosuppressants.

There is a benefit for patients to participate in this study because they are all vaccinated against influenza and will benefit from a clinical and laboratory monitoring in this study. Moreover, these patients are taken to be vaccinated in the event of a pandemic influenza

Study Design

Allocation: Non-Randomized, Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Conditions

Inflammatory Bowel Disease (IBD)

Intervention

Vaccine

Location

CIC Vaccinologie Hopital Cochin
Paris
France
75014

Status

Recruiting

Source

Assistance Publique - Hôpitaux de Paris

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:17:38-0400

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Medical and Biotech [MESH] Definitions

An anti-inflammatory agent, structurally related to the SALICYLATES, which is active in INFLAMMATORY BOWEL DISEASE. It is considered to be the active moiety of SULPHASALAZINE. (From Martindale, The Extra Pharmacopoeia, 30th ed)

A species of Faecalbacterium, previously classified in the FUSOBACTERIUM genus, that is a major constituent of the GUT MICROBIOTA in healthy humans. It has anti-inflammatory activity and reduced numbers of this species occur in patients with INFLAMMATORY BOWEL DISEASES such as CROHN DISEASE.

Chronic, non-specific inflammation of the GASTROINTESTINAL TRACT. Etiology may be genetic or environmental. This term includes CROHN DISEASE and ULCERATIVE COLITIS.

A member of the S-100 protein family that is present at high levels in the blood and interstitial fluid in several infectious, inflammatory, and malignant disorders, including rheumatoid arthritis, inflammatory bowel disease, and cystic fibrosis. It is a complex of a light chain (CALGRANULIN A) and a heavy chain (CALGRANULIN B). L1 binds calcium through an EF-hand motif, and has been shown to possess antimicrobial activity.

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