A National Prospective Cohort of Patients With Idiopathic Nephrotic Syndrome Beginning in Childhood. (PIN'SNP)

March 11, 2026 updated by: University Hospital, Limoges

Pediatric idiopathic nephrotic syndrome (INS) is a rare disease for which the optimal therapeutic strategy has not yet been defined. A network of clinicians treating complicated forms of this disease (grouped within the Société de Néphrologie Pédiatrique, SNP) exists, but to date there is no prospective cohort following up these patients that would facilitate the development of cohort-nested trials. This absence of structured follow up makes it difficult to set up prospective studies.

The main objective is to create a prospective cohort of pediatric INS patients to collect cases treated in SNP centers, to study their epidemiological characteristics, and to provide a basis for comparison for future cohort-nested trials.

Study Overview

Detailed Description

In this study, data from patients with INS will be recorded prospectively, regularly and systematically. The cohort will be composed of patients followed by pediatric nephrologists affiliated with the SNP. Metropolitan France, Reunion Island and Mayotte are the geographical areas concerned. It is planned to integrate other French overseas departments and territories, in particular the West Indies.

This is therefore a prospective, multicenter, cohort follow-up study. The data will be centralized via a secure website dedicated to the study.

Data will be obtained from:

  • Medical record data (hospitalization/consultations) as part of routine clinical follow-up for patients with active disease. This information will be medically validated and integrated into the database with the help of clinical research staff.
  • A telephone interview for annual follow-ups for patients whose absence of active disease no longer requires a systematic medical visit. This structured interview will be administered by telephone by the study's clinical research staff.
  • Self-administered or hetero-administered quality of life questionnaires (PEDS-QL), self-administered or hetero-administered treatment compliance questionnaires (Morisky's Score), and questionnaires on the aesthetic impact of treatments (Ferriman's Score). These questionnaires will be centralized and reported to the database by the study's clinical research staff.

Study Type

Observational

Enrollment (Estimated)

1180

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

      • Agen, France, 47000
        • Recruiting
        • CH d'Agen
        • Contact:
        • Principal Investigator:
          • Marie MIZZI-RODIER, MD
      • Amiens, France, 80000
        • Recruiting
        • CHU D'amiens
        • Principal Investigator:
          • Djamal-Dine DJEDDI, MD
        • Contact:
      • Auxerre, France, 89000
        • Recruiting
        • CHU d'Auxerre
        • Contact:
        • Principal Investigator:
          • Bertrand SOTO, MD
      • Bayonne, France, 64100
        • Recruiting
        • CH de la Côte Basque
        • Contact:
        • Principal Investigator:
          • Catherine DIDAILLER, MD
      • Besançon, France, 25000
        • Recruiting
        • CHU de Besancon
        • Contact:
        • Principal Investigator:
          • François NOBILI, MD
      • Bordeaux, France, 33000
        • Recruiting
        • CHU de Boredeaux
        • Contact:
        • Principal Investigator:
          • Jérôme HARAMBAT, MD
      • Brest, France, 29609
        • Recruiting
        • CHU de Brest
        • Contact:
        • Principal Investigator:
          • Nadine JAY, MD
      • Bron, France, 69500
        • Recruiting
        • HCL Lyon
        • Principal Investigator:
          • Bruno Ranchin, MD
        • Contact:
      • Chambéry, France, 73011
      • Clermont-Ferrand, France, 63000
        • Recruiting
        • Chu de Clermont Ferrand
        • Contact:
        • Principal Investigator:
          • Lucie BESSENAY, MD
      • Dijon, France, 21079
        • Recruiting
        • CHU de DIJON
        • Contact:
        • Principal Investigator:
          • Megan NALLET-AMATE, MD
      • Foix, France, 09000
        • Recruiting
        • CH du Val d'Ariège
        • Principal Investigator:
          • Lucas PERCHERON, MD
        • Contact:
      • La Rochelle, France, 17019
        • Recruiting
        • CH de la Rochelle
        • Contact:
        • Principal Investigator:
          • Florian MANCA BARAYRE, MD
      • La Tronche, France, 38700
        • Recruiting
        • Chu de Grenoble
        • Contact:
        • Principal Investigator:
          • Camille ALLIROT, MD
      • Le Chesnay, France, 78150
        • Recruiting
        • CH de Versaille
        • Contact:
        • Principal Investigator:
          • Sylvie NATHANSON, MD
      • Lille, France, 59037
        • Recruiting
        • CHU de Lille - Hôpital Jeanne de Flandre
        • Contact:
        • Principal Investigator:
          • Charlotte SAMAILLE, MD
      • Limoges, France, 87 042
        • Recruiting
        • Limoges Hospital
        • Contact:
        • Principal Investigator:
          • Vincent GUIGONIS, MD
      • Marseille, France, 13385
        • Recruiting
        • CHU de Marseille - Timone enfants
        • Principal Investigator:
          • Caroline ROUSSET-ROUVIERE, MD
        • Contact:
      • Montpellier, France, 34090
        • Recruiting
        • CHU de Montpellier - Hôpital Arnaud de Villeneuve
        • Contact:
        • Principal Investigator:
          • Lydia ICHAY, MD
      • Mâcon, France, 71018
        • Recruiting
        • CH de Macon
        • Contact:
        • Principal Investigator:
          • Laurence MARTINAT, MD
      • Nancy, France, 54500
        • Recruiting
        • CHU de Nancy
        • Principal Investigator:
          • Isabelle VRILLON, MD
        • Contact:
      • Nantes, France, 44093
        • Recruiting
        • Chu de Nantes
        • Contact:
        • Principal Investigator:
          • Gwenaëlle ROUSSEY, MD
      • Nice, France, 06200
        • Recruiting
        • CHU de Nice - Hopital Larchet
        • Contact:
        • Principal Investigator:
          • Julie BERNARDOR, MD
      • Nîmes, France, 30900
        • Recruiting
        • CHU de Nîmes
        • Principal Investigator:
          • Massimo DI MAIO, MD
        • Contact:
      • Paris, France, 75012
        • Recruiting
        • AP-HP Trousseau
        • Contact:
        • Principal Investigator:
          • Cyrielle PARMENTIER, MD
      • Paris, France, 75019
        • Recruiting
        • AP-HP Robert Debré
        • Contact:
        • Principal Investigator:
          • Claire DOSSIER, MD
      • Paris, France, 75743
        • Recruiting
        • AP-HP Necker
        • Principal Investigator:
          • Olivia BOYER, MD
        • Contact:
      • Pau, France, 64000
        • Recruiting
        • CH de Pau
        • Contact:
        • Principal Investigator:
          • Adeline GIRAUDON, MD
      • Perpignan, France, 66000
        • Recruiting
        • CH de Perpignan
        • Contact:
        • Principal Investigator:
          • Agnès CHEVALIER, MD
      • Poitiers, France, 86000
        • Recruiting
        • Chu de Poitiers
        • Contact:
        • Principal Investigator:
          • Tackwa KHALIFEH, MD
      • Pringy, France, 74374
        • Recruiting
        • CH d'Annecy
        • Contact:
        • Principal Investigator:
          • Camille BEAUFILS, MD
      • Périgueux, France, 24000
        • Recruiting
        • CH de Périgueux
        • Contact:
        • Principal Investigator:
          • Paul VERGNAUD, MD
      • Reims, France, 57092
        • Recruiting
        • CHU de Reims
        • Contact:
        • Principal Investigator:
          • Christine PIETREMENT, MD
      • Rennes, France, 35203
        • Recruiting
        • CHU de Rennes
        • Contact:
        • Principal Investigator:
          • Amélie RYCKEWAERT, MD
      • Roanne, France, 42300
        • Not yet recruiting
        • CH de ROANNE
        • Contact:
        • Principal Investigator:
          • Catherine CLAVEL, MD
      • Roubaix, France, 59100
        • Recruiting
        • CH de Roubaix
        • Contact:
        • Principal Investigator:
          • Marie-Hélène PIERRE, MD
      • Rouen, France, 76031
        • Recruiting
        • CHU de ROUEN
        • Contact:
        • Principal Investigator:
          • Edouard MARTINEZ CASADO, MD
      • Saint-Priest-en-Jarez, France, 42270
        • Recruiting
        • CHU de Saint-Etienne
        • Contact:
        • Principal Investigator:
          • Antonio AZZI, MD
      • Sallanches, France, 74700
        • Terminated
        • CH de Sallanches
      • Strasbourg, France, 67200
        • Recruiting
        • CHRU de Strasbourg
        • Principal Investigator:
          • Ariane Zaloszyc, MD
        • Contact:
      • Toulon, France, 83056
        • Recruiting
        • CH de Toulon
        • Contact:
        • Principal Investigator:
          • Justine PERRIN, MD
      • Toulouse, France, 31300
        • Recruiting
        • CHU de Toulouse
        • Contact:
        • Principal Investigator:
          • Stéphanie COGNET-TELLIER, MD
      • Tours, France, 37000
        • Recruiting
        • CHU de Tours
        • Contact:
        • Principal Investigator:
          • Elodie MERIEAU, MD
      • Vannes, France, 56000
        • Not yet recruiting
        • CH de Vannes
        • Contact:
        • Principal Investigator:
          • Josselin BERNARD, MD
      • Villefranche-sur-Saône, France, 69655
        • Recruiting
        • CH de Villefranche
        • Contact:
        • Principal Investigator:
          • Guillaume ESTRALLET, MD
      • Voiron, France, 38500
        • Recruiting
        • CH de Voiron
        • Contact:
        • Principal Investigator:
          • Antje KNAPKE, MD
      • Saint-Denis, Reunion, 97400
        • Recruiting
        • CHU de La Réunion - Félix Guyon
        • Contact:
        • Principal Investigator:
          • Olivier DUNAND, MD
      • Saint-Pierre, Reunion, 97448
        • Recruiting
        • CHU de la réunion
        • Contact:
        • Principal Investigator:
          • Hugues FLODROPS, MD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

No older than 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Pediatric idiopathic nephrotic syndrome

Description

Inclusion Criteria:

  • Patient under 18 years of age
  • With idiopathic nephrotic syndrome (according to SPN criteria) beginning after January 1, 2018
  • Child seen at least once in consultation or hospitalization by a pediatrician member of the Society of Pediatric Nephrology
  • Residing in France
  • Consent signed by parents and patient's agreement to participate (if of age)
  • Affiliated to a social security system.

Exclusion Criteria:

  • Refusal of the patient or legal representatives to participate in the cohort

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Inclusion and follow up of pediatric patients

Inclusion and follow up of pediatric patients with an idiopathic nephrotic syndrome, from the beginning of the disease to 18 years old or transfer of the follow-up to a nephrology unit for adults.

130 new patients are expected to be included on an annual basis.

The study consists in collecting clinical, biological, psychological and social data of INS pediatric patients.

A bio collection is also created: blood, urine, hair and nails will be collected at the beginning of the INS (before starting immunosuppressive treatment).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of cases included in the cohort and description of their characteristics
Time Frame: 2 years
  • Number of followed cases, gender, and age
  • Geographical localization of followed cases
  • Progressive disease pattern (relapses, corticosteroid dependence, other treatments used)
  • Serious side effects related to treatment
2 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Vincent Guigonis, MD, University Hospital, Limoges

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 13, 2020

Primary Completion (Estimated)

January 1, 2030

Study Completion (Estimated)

January 1, 2048

Study Registration Dates

First Submitted

December 17, 2019

First Submitted That Met QC Criteria

December 17, 2019

First Posted (Actual)

December 23, 2019

Study Record Updates

Last Update Posted (Actual)

March 13, 2026

Last Update Submitted That Met QC Criteria

March 11, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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