NCT06382233

Brief Summary

The goal of this observational study is to learn about specific biomarkers of unilateral ureteropelvic junction obstruction (UPJO) in children undergoing surgical intervention for unilateral UPJO compared with controls. The main question it aims to answer are:

  • Are Urinary single-cell and extracellular vesicles (EVs) screening useful to stage the intrarenal injury and repair processes in UPJO babies?
  • Do babies with unilateral UPJO have a whole blood gene expression profiling (WBGEP) allowing an accurate unilateral UPJO diagnosis?

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
85

participants targeted

Target at P50-P75 for all trials

Timeline
21mo left

Started Jan 2024

Longer than P75 for all trials

Geographic Reach
1 country

5 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress57%
Jan 2024Jan 2028

Study Start

First participant enrolled

January 30, 2024

Completed
3 months until next milestone

First Submitted

Initial submission to the registry

April 19, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

April 24, 2024

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2026

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 30, 2028

Expected
Last Updated

April 30, 2024

Status Verified

April 1, 2024

Enrollment Period

2 years

First QC Date

April 19, 2024

Last Update Submit

April 26, 2024

Conditions

Keywords

Ureteropelvic junction obstructionBiomarkersSingle-CellExtracellular vesiclesCongenital anomalies of the kidney and urinary tract

Outcome Measures

Primary Outcomes (2)

  • Urine Biomarkers

    The investigators will focus on the urine by investigating for intrarenal remodeling processes and searching for kidney-specific biomarkers by urinary single-cell and EVs screening (aim 1).

    48 months

  • Blood Biomarkers

    Moreover, based on the hitherto revealed capability of blood cells to perceive organ-specific illnesses, the investigators will perform WBGEP of babies with unilateral UPJO to identify early biomarkers of disease progression (aim 2).

    48 months

Study Arms (2)

Babies with unilateral UPJO

Children aged 0-5 years with unilateral UPJO. Unilateral UPJO will be defined as an hydronephrosis needing of surgical correction on the basis of at least 2 of the following criteria: APDP ≥ 30 mm, SRF less than 40% at the Mag3S, SRF with delta \> 10% at follow-up Mag3S compared with the first Mag3S, delayed wash-out following diuretic administration, progressive increase of the APDP at follow-up kidney ultrasounds, 4th degree hydronephrosis.

Diagnostic Test: Identification of Diagnostic Biomarkers

Controls of babies with unilateral UPJO

Children aged 0-5 years needing of surgical correction for hernia, hydrocele, phimosis or cryptorchidism.

Diagnostic Test: Identification of Diagnostic Biomarkers

Interventions

Urinary single-cell and EVs screening to stage the intrarenal injury and repair processes in UPJO babies and identification of the whole blood gene expression profiling of babies with unilateral UPJO. Data deriving from patients with unilateral UPJO will be compared with data deriving from controls.

Babies with unilateral UPJOControls of babies with unilateral UPJO

Eligibility Criteria

Age1 Day - 5 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)
Sampling MethodNon-Probability Sample
Study Population

Definition of cases (patients with UPJO): in this project, the investigators define the UPJO as an hydronephrosis needing of surgical correction on the basis of at least 2 of the following criteria: APDP ≥ 30 mm, SRF less than 40% at the Mag3S, SRF with delta \> 10% at follow-up Mag3S compared with the first Mag3S, delayed wash-out following diuretic administration, progressive increase of the APDP at follow-up kidney ultrasounds, 4th degree hydronephrosis. Otherwise, the hydronephrosis will be defined as non-obstructive. Definition of controls: babies aged 0-5 years and needing of surgical correction for hernia, hydrocele or phimosis.

You may qualify if:

  • unilateral UPJO
  • years of age

You may not qualify if:

  • bilateral UPJO
  • previous surgical intervention on the urinary tract
  • bladder or lower urinary tract symptoms or malformations
  • nephro- or urolithiasis, vesicoureteral reflux
  • urinary tract infections.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (5)

Univeristà degli Studi della Campania Luigi Vanvitelli

Naples, Campania, 80138, Italy

RECRUITING

Department of Clinical Sciences and Community Health, University of Milano

Milan, Italy

ACTIVE NOT RECRUITING

Fondazione IRCCS Ca' Granda-Ospedale Maggiore Policlinico

Milan, Italy

RECRUITING

Obstetrics and Gynecology Unit, University of Modena and Reggio Emilia

Modena, Italy

RECRUITING

AORN Santobono-Pausilipon

Naples, Italy

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Blood samples (3mL) will be collected at the time of pre-surgical kidney function evaluation by serum creatinine measurement in both UPJO patients and controls. Spots of urines (4-5 spots with a total volume of 150-200 mL) will be collected by sterile bag or mid-stream (before sedation) and vesical catheter (during sedation) until the start of surgical intervention. Later, only for UPJO patients, urines will be collected from bladder by sterile bag or mid-stream i) after 7 days from the pyeloplasty, and ii) after 2 months and iii) after 12 months when follow-up kidney ultrasounds will be performed.

MeSH Terms

Conditions

Multicystic renal dysplasia, bilateralRenal Insufficiency, Chronic

Condition Hierarchy (Ancestors)

Renal InsufficiencyKidney DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Central Study Contacts

Pierluigi Marzuillo, MD PhD

CONTACT

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

April 19, 2024

First Posted

April 24, 2024

Study Start

January 30, 2024

Primary Completion

January 30, 2026

Study Completion (Estimated)

January 30, 2028

Last Updated

April 30, 2024

Record last verified: 2024-04

Data Sharing

IPD Sharing
Will not share

Locations