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CompletedNCT01775527NIDOCIGAUpdated Aug 22, 2016

IgA Nephropathy, Lymphocyte Homing and IgA Class Switch

An interventional study of blood test in IgA Nephropathy, sponsored by University Hospital, Limoges. Completed at 1 site in France. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2016-08-22.

Sponsored by University Hospital, Limoges · Not applicable and Interventional

Phase
Not applicable
Study type
Interventional
Enrollment
72
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
01

Study summary

IgA nephropathy (IgAN) is the most common primary glomerulonephritis in the world and it represents an important cause of end-stage kidney failure. This disease was described as a distinct entity in 1968 by J Berger and N Hinglais. The aetiology and the pathogenesis remain still obscure. Clinical observations and immunisation studies indicate that IgAN represents a dysregulation of the immune system, rather than an intrinsic renal abnormality. Twenty years ago, some authors proposed the mucosa-bone marrow axis to explain the pathogenesis of the disease. Mucosal IgA plasmocytes are displaced and take up residence in systemic sites. The unusual characteristics featured by the IgA produced by these cells (charge, size, glycosylation) drive their accumulation, deposition and mesangial activation characteristic of IgAN.

Evidence is emerging that altered lymphocyte homing may ultimately explain this aberrant localization.

02

Conditions studied

  • IgA Nephropathy
03

In context

Kidney Diseases

3,840 studies on the registry are indexed under Kidney Diseases; 500 are open to participants now.

This study's enrollment of 72 is close to the median of 70 across 2,640 interventional studies indexed under Kidney Diseases.

Browse Kidney Diseases studies →

Lead sponsor

University Hospital, Limoges is the lead sponsor of 255 studies on the registry; 36 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Age > 18 and \< 70 years
  • IgA nephropathy documented by the kidney biopsy in the six months preceding the inclusion
  • Glomerular filtration rate (MDRD formula as simplified) \< 90 ml/mn and > 30 ml/mn/1,73 m2
  • Consent form signed

Exclusion criteria

Exclusion Criteria:

  • Patients with cirrhosis or chronic liver disease
  • Patients with a history of Crohn's disease or celiac disease
  • Patients who received treatment with corticosteroids or affiliates for six months
  • Patients who received a live attenuated vaccine during the past 4 weeks
  • Patients with a known infection such as HIV, hepatitis B or C
  • Patients who presented with a serious infection during the last month
  • Breastfeeding women
  • Patients not affiliated with a social security scheme
  • Under guardianship patient
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Study design

Phase
Not applicable
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
72 participants (actual)

Study arms

  • Other
    blood test

    Other: blood test

Interventions

  • Otherblood test
06

What researchers measure

Primary outcomes

  1. The Primary Outcome Measure of this study is the level of expression of the molecules of intestinal localization.

    Time frame: 30 minutes

Secondary outcomes

  1. The secondary outcome measure is the level of expression of the homing molecules in lymphocytes B IgA memory

    Time frame: 30 minutes

07

Study locations

1 site
  • University Hospital, Limoges
    Limoges, 87 042, France
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 22, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01775527
Lead sponsor
University Hospital, Limoges
Responsible party
Sponsor
First posted
Jan 25, 2013
Start date
Feb 2013
Primary completion
Feb 2014
Completion
Jun 2016
Last update
Aug 22, 2016

Study contacts

Ahmed Boumediene, doctor
principal investigator · University Hospital, Limoges

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2012. You cannot join it, but the record below documents what was studied.

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