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Erforschung therapeutischer Ziele im Rahmen von Nephronophthise und renalen Ziliopathien (NPH1)

30. September 2026 aktualisiert von: Imagine Institute

Erforschung therapeutischer Ziele im Rahmen von Nephronophthise und renalen Ziliopathien – NPH_1

Nephronophthisis (NPH) is an autosomal recessive, genetically heterogeneous disease, with mutations identified in over 20 genes (notably NPHP1 and NPHP4).

These genetic defects are associated with reduced urine concentration, chronic tubulointerstitial nephritis, etc., and progress to end-stage renal failure before the age of 20.

Nephronophthisis may occur as an isolated pathology, but is also often associated with various extrarenal symptoms.

NPHP genes account for around 50% of the genes responsible for NPH. No effective treatment is available to date.

Studying NPHP proteins and associated signaling pathways could help identify how to circumvent the problems of protein distribution and therapeutic mRNA, and could be applicable to a broad set of NPHP mutations. To this end, Dr. Saunier's laboratory at Institut Imagine has recently identified approved drugs that correct some of the ciliary and epithelial defects found in cells with NPHP mutations.

Studienübersicht

Status

Rekrutierung

Bedingungen

Intervention / Behandlung

Detaillierte Beschreibung

Nephronophthisis (NPH) is an autosomal recessive, genetically heterogeneous disease, with mutations identified in over 20 genes (notably NPHP1 and NPHP4).

These genetic defects are associated with reduced urine concentration, chronic tubulointerstitial nephritis, etc., and progress to end-stage renal failure before the age of 20.

Nephronophthisis may occur as an isolated pathology, but is also often associated with various extrarenal symptoms such as retinal dystrophy, cerebellar vermis hypoplasia, skeletal dysmorphisms and/or situs/inversus. These disorders overlap phenotypically, genetically and functionally. All are thought to result from defective ciliary signaling and are classified as renal ciliopathies.

NPHP genes account for around 50% of the genes responsible for NPH. No effective treatment is available to date.

One possible therapeutic approach is to replace the defective protein; but delivery of recombinant proteins or mRNA to renal tubular cells is not currently feasible. However, each NPHP protein participates in numerous intracellular signalling pathways involving cilia functions.

Studying NPHP proteins and associated signaling pathways could help identify how to circumvent the problems of protein distribution and therapeutic mRNA, and could be applicable to a broad set of NPHP mutations. To this end, Dr. Saunier's laboratory at Institut Imagine has recently identified approved drugs that correct some of the ciliary and epithelial defects found in cells with NPHP mutations.

The global research project of which this protocol is a part seeks to identify new specific targets and develop new therapeutic agents against these targets for the treatment of NPH and other ciliopathies.

Studientyp

Interventionell

Einschreibung (Geschätzt)

310

Phase

  • Unzutreffend

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienorte

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

  • Kind
  • Erwachsene
  • Älterer Erwachsener

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Alle

Beschreibung

Inclusion Criteria:

  • In order to be included in the protocol, subjects will have to respect the following criteria:

Affected patients:

Suffering from nephronophthisis or renal associated ciliopathies with known genetic diagnosis or not, Having obtained the signature of the informed consent form of patient, parent(s) or legal representative No age limit is requested for these patients, who can be recruited from birth.

Healthy relatives:

Being the healthy relative (father / mother / brother / sister) of an included patient Having signed the informed consent form (patient or parent in case of minor subject) No age limit is requested for these subjects, who can be recruited from birth.

'Negative' control patients: Being unscathed of any chronic renal disease, with or without ciliopathies Having obtained the signature of the informed consent form No age limit is requested for these patients, who can be recruited from birth.

'Positive' control patients Suffering from Chronic Kidney Disease unrelated to ciliary dysfunction (such as glomerulopathy, tubulopathy…) Having obtained the signature of the informed consent form No age limit is requested for these patients, who can be recruited from birth.

Exclusion Criteria:

In order to be included in the protocol, subjects will have to fulfill none of the following criteria:

Affected patients:

Patients with a functioning kidney transplant (only for patient for who urine sample is performed. This criteria is not applicable when only blood is sampling) Patients included in a therapeutic protocol since fewer 30 days.

Healthy relatives:

No no-inclusion criteria

'Negative' control subjects: No no-inclusion criteria

'Positive' control subjects: Patients with a functioning kidney transplant

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Hauptzweck: Behandlung
  • Zuteilung: Nicht randomisiert
  • Interventionsmodell: Einzelgruppenzuweisung
  • Maskierung: Keine (Offenes Etikett)

Waffen und Interventionen

Teilnehmergruppe / Arm
Intervention / Behandlung
Sonstiges: Patients with nephronophthisis/renal associated ciliopathies

Affected patients:

Suffering from nephronophthisis or renal associated ciliopathies with known genetic diagnosis or not, Having obtained the signature of the informed consent form of patient, parent

Intervention : blood and urine sample collection Collection of urines from patients will be followed by multiomics analyses including proteome and miRNAome profiling on EVs purified from urines by ultracentrifugation and metabolomics on unfractionated urine. Biomarkers identification for ciliopathy-induced chronic kidney disease will allow to monitor the drug response in treated urine-derived renal epithelial cells.

Sonstiges: Healthy relatives of Patients

Healthy relatives:

Being the healthy relative (father / mother / brother / sister) of an included patient Having signed the informed consent form (patient or parent in case of minor subject) No age limit is requested for these subjects, who can be recruited from birth.

Intervention : blood and urine sample collection Collection of urines from patients will be followed by multiomics analyses including proteome and miRNAome profiling on EVs purified from urines by ultracentrifugation and metabolomics on unfractionated urine. Biomarkers identification for ciliopathy-induced chronic kidney disease will allow to monitor the drug response in treated urine-derived renal epithelial cells

Sonstiges: Negative control

Being unscathed of any chronic renal disease, with or without ciliopathies Having obtained the signature of the informed consent form No age limit is requested for these patients, who can be recruited from birth.

Intervention : blood and urine sample collection Collection of urines from patients will be followed by multiomics analyses including proteome and miRNAome profiling on EVs purified from urines by ultracentrifugation and metabolomics on unfractionated urine. Biomarkers identification for ciliopathy-induced chronic kidney disease will allow to monitor the drug response in treated urine-derived renal epithelial cells

Sonstiges: Positive control

Suffering from Chronic Kidney Disease unrelated to ciliary dysfunction (such as glomerulopathy, tubulopathy…) Having obtained the signature of the informed consent form No age limit is requested for these patients, who can be recruited from birth.

Intervention : blood and urine sample collection Collection of urines from patients will be followed by multiomics analyses including proteome and miRNAome profiling on EVs purified from urines by ultracentrifugation and metabolomics on unfractionated urine. Biomarkers identification for ciliopathy-induced chronic kidney disease will allow to monitor the drug response in treated urine-derived renal epithelial cells

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Zeitfenster
Positive oder negative Bestätigung potenzieller therapeutischer Ziele in aus dem Urin stammenden Nierenepithelzellen von Patienten
Zeitfenster: 3 Jahre
3 Jahre

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Identifizieren Sie Biomarker, um die Reaktion auf kleine Moleküle für die Behandlung von NPHP und anderen renalen Ziliopathien zu bewerten.
Zeitfenster: 3 Jahre
3 Jahre
Experimental transcriptomics data package from in vitro tubule cell model perturbed with disease network modifying agents
Zeitfenster: 3 years

The experimental design and data will be formatted for Bayesian analytics.

3 years
A rank ordered list of specific druggable nodes within the NPHP disease module that could be targeted by biologic or chemical entities.
Zeitfenster: 3 years

A rank ordered list of specific druggable nodes within the NPHP disease module that could be targeted by biologic or chemical entities.

3 years

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Tatsächlich)

1. Februar 2016

Primärer Abschluss (Geschätzt)

1. Februar 2028

Studienabschluss (Geschätzt)

1. Februar 2028

Studienanmeldedaten

Zuerst eingereicht

23. Januar 2024

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

16. Oktober 2024

Zuerst gepostet (Tatsächlich)

18. Oktober 2024

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

5. Oktober 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

30. September 2026

Zuletzt verifiziert

1. September 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Schlüsselwörter

Andere Studien-ID-Nummern

  • IMIS2015-05

Plan für individuelle Teilnehmerdaten (IPD)

Planen Sie, individuelle Teilnehmerdaten (IPD) zu teilen?

UNENTSCHIEDEN

Arzneimittel- und Geräteinformationen, Studienunterlagen

Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt

Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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