Non-invasive Diagnosis of Idiopathic Nephrotic Syndromes
France265 participantsStarted 2025-04-15
Plain-language summary
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.
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.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* 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
Exclusion Criteria:
* Patients with known lupus nephropathy (prior to the current episode)
* Patients with known IgA nephropathy (prior to the current episode)
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
The sensitivity and specificity of the SNIT score (threshold = 0.36) and their 95% confidence interval