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Blood-based score to diagnose idiopathic nephrotic syndrome without a kidney biopsy

Tests a diagnostic score for idiopathic nephrotic syndrome in adults, avoiding kidney biopsy.

Key facts

Who runs it
Assistance Publique - Hôpitaux de Paris
Where
France1 site in 1 countryChoose a country to see its sites
Trial code
Registry title
Non-invasive Diagnosis of Idiopathic Nephrotic Syndromes
Status
Recruiting
People taking part
265 people, planned
Started
15 Apr 2025
Expected to end
Aug 2027
Type of study
Observational
Record updated
14 August 2025

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults in hospital with a first episode of nephrotic syndrome who need a kidney biopsy. It tests a score that may allow diagnosis without a biopsy.

Age
18 years and older
Sex
All sexes
Disease stage
First episode of nephrotic syndrome needing hospital care: protein in urine greater than 3g/g and albumin level < 30g/L.
Biomarker or test result
Negative anti-PLA2r antibodies in the blood.

Main reasons for not taking part

  • Known lupus kidney disease (lupus nephropathy) before the current episode
  • Known IgA nephropathy before the current episode

The registry criteria, word for word

Show all 6 criteriaShow less

Who can take part

  • Patients aged 18 years and older
  • Hospitalized for a first episode of nephrotic syndrome (proteinuria greater than 3g/g and albumin level < 30g/L)
  • Negative anti-PLA2r antibodies in the blood
  • Requirement for a renal biopsy for diagnostic purposes

Who cannot take part

  • Patients with known lupus nephropathy (prior to the current episode)
  • Patients with known IgA nephropathy (prior to the current episode)

This trial has no sites in United States.

It has sites in one country. Choose a country to see its sites.

About the trial

What the trial wants to find out

Renal biopsy (RB) is the reference diagnostic procedure for Idiopathic Nephrotic Syndrome (INS). It is an invasive procedure, particularly risky during the acute phase of nephrotic syndrome when anticoagulation therapy is required.

Read full original descriptionShow less

By identifying serum antibodies that allow for the non-invasive diagnosis of the main differential diagnoses of INS, (Membranous Nephropathy), the development of a non-invasive diagnostic tool for INS could help reduce the morbidity associated with the invasive renal biopsy procedure, minimizing the risk of incorrect diagnosis. We developed a diagnostic score, the SNIT, from routine clinical and biological variables to allow INS diagnoses in patients for whom detection of blood antibodies of Membranous Nephropathy were negative. The main goal of this study is to validate this diagnosis score in a prospective study, to allow INS diagnosis without renal biopsy.

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
Non-invasive Diagnosis of Idiopathic Nephrotic Syndromes : DNI-SNI
Plain-language title
Blood-based score to diagnose idiopathic nephrotic syndrome without a kidney biopsyGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 15 November 2026.
Record updated
14 August 2025