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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT03698071
Other study ID # CHUBX 2018/22
Secondary ID
Status Recruiting
Phase N/A
First received
Last updated
Start date December 14, 2018
Est. completion date December 2024

Study information

Verified date April 2024
Source University Hospital, Bordeaux
Contact Patrick BLANCO, Prof
Phone (0)5 56 79 56 45
Email patrick.blanco@chu-bordeaux.fr
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The study aims at defining the role of soluble CD95 Ligand in the physiopathology of a rare group of inflammatory diseases: ANCA associated vasculitis. Soluble CD95 Ligand might have a prognostic and diagnostic interest as well as potential for the discovery of new therapeutic strategies.


Description:

ANCA associated vasculitis are a rare group of diseases and potentially life-threatening inflammatory conditions. There is an urgent need to describe prognostic factors and to discover new therapeutic pathways. Soluble CD95-L is a cleaved part of CD95-L which binds the CD95 Death receptor. s-CD95-L has pro-inflammatory properties for Th17 lymphocytes and Neutrophils, two cells implicated in ANCA associated vasculitis. It also plays a role in systemic lupus erythematosus (which present with the same type of renal glomerulonephritis as ANCA-associated vasculitis). Finally, it has already be found elevated in this group of diseases. The investigators hypothesized that s-CD95-L levels might be a prognostic factor in ANCA associated vasculitis and the study of the molecular mechanisms involved could provide new therapeutic targets. The study will recruit 50 patients with ANCA associated vasculitis followed in Bordeaux University Hospital. Among classical disease activity information, blood and urine samples will be collected at each visit to study s-CD95-L. Fundamental research will be realized on patients' sample to study molecular mechanisms involved. Clinical and biological disease activity, treatment and outcomes will be studied in correlation with s-CD95-L to describe their potential prognostic role. Patients will be followed at regular intervals, as their usual follow-up would request. No extra visit will be needed and blood samples will be drawn at the same time as those drawn for clinical purposes.


Recruitment information / eligibility

Status Recruiting
Enrollment 50
Est. completion date December 2024
Est. primary completion date December 2024
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Diagnosis of ANCA associated vasculitis according to the Chapel-Hill Consensus Conference - 2012 modified version - Age = 18 years - being affiliated to health insurance - willing to participate and to sign informed consent. Exclusion Criteria: - Pregnant or breastfeeding women, - patient concerned by articles L 1121-5 to L 1121-8 (persons deprived of their liberty by a judicial or administrative decision, minors, persons of legal age who are the object of a legal protection measure or unable to express their consent)

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
blood sample
30 ml whole blood for Peripheral blood mononuclear cell (PBMC) and monocytes isolation
urine sample
6 ml

Locations

Country Name City State
France CHU de Bordeaux - Service d'Immunologie et Immunogénétique Bordeaux

Sponsors (2)

Lead Sponsor Collaborator
University Hospital, Bordeaux National Research Agency, France

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change of quantitative levels of s-CD95-L in ANCA associated vasculitis between baseline and Month 12 At baseline (Day 0) and 12 months from baseline
Secondary Change of disease activity scores for ANCA associated vasculitis between baseline and Month 12 Birmingham Vasculitis Activity Score - Version 3 (BVAS 3.0) The Birmingham Vasculitis Activity Score (BVAS) is a method for assessing the activity of vasculitis. Note that scoring ranges are higher when any of the features are new or worse. Creatinine levels can be scored at patient's first assessment only. The maximum score is 63 points for present symptoms and 32 points for new symptoms or symptoms which had worsened within the previous weeks. At baseline (Day 0) and 12 months from baseline
Secondary Change of disease activity scores for ANCA associated vasculitis between baseline and Month 12 Vasculitis Damage Index (VDI) At baseline (Day 0) and 12 months from baseline
Secondary Change of quantification of s-CD95-L in the blood and urine samples of ANCA associated vasculitis between baseline and Month 12 At baseline (Day 0) and 12 months from baseline
Secondary Change of quantification of ANCA in the blood samples of ANCA associated vasculitis between baseline and Month 12 At baseline (Day 0) and 12 months from baseline
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