CClinicalTrials.gg
Active, not recruitingNCT02021006PREDICTUpdated Sep 28, 2023

Antibiotic Prophylaxis and Renal Damage In Congenital Abnormalities of the Kidney and Urinary Tract

A Phase 3 interventional study of nitrofurantoin and No prophylaxis in Vesicoureteral Reflux, Renal Hypodysplasia, Nonsyndromic, 1 and Chronic Kidney Disease, sponsored by Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico. Active, not recruiting at 1 site in Italy. Open to participants aged 1 Month to 4 Months. Per ClinicalTrials.gov, last updated 2023-09-28.

Sponsored by Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico · Phase 3, Interventional, and Prevention

Phase
Phase 3
Study type
Interventional
Enrollment
292
Allocation
Randomized
Ages
1 Month to 4 Months
Sex
All
01

Study summary

The exact role of urinary tract infection in the appearance of chronic kidney disease is unclear. Children with congenital malformations of kidney and urinary tract have the higher risk of impairment of renal function. To understand if the use of antibiotic prophylaxis can reduce the risk of urinary tract infection in children with these malformations, this study will randomize children in two groups. Group A will not take antibiotic prophylaxis, Group B will take antibiotic prophylaxis for 2 years. This study will assess if antibiotic prophylaxis reduce the risk of urinary tract infections in these children and if urinary tract infections influence the appearance of renal damage.

Our hypothesis is that prophylaxis reduce the risk of infection in severe vesicoureteral reflux and that urinary tract infections, in morphologically normal kidneys, will not result in chronic renal failure.

Read the detailed description

Bacterial urinary tract infections (UTI) are common in young children. The presence of fever is considered to be a marker of renal parenchymal involvement. Renal damage during the acute phase of infection may lead to scarring, yet the role that scarring plays in the appearance of chronic kidney failure is unknown. It is also unclear what influence scars have on the natural course of kidney function, especially in children with renal hypodysplasia, with or without vesicoureteral reflux (VUR). Renal hypodysplasia is the most common cause for dialysis and transplantation in the pediatric population.

Patients suffering from recurrent UTIs and VUR have often undergone corrective surgery. For many years, it was also thought necessary to prescribe long-term antibiotic prophylaxis to all children with VUR. These treatment strategies were based on the ideas and opinions of the experts, rather than on hard scientific evidence. As regards the prevention of recurrent UTIs and the subsequent development of renal scarring, a long-term international study on Reflux was not able to demonstrate that surgical correction is more effective than antibiotic prophylaxis. Very little data is available regarding the use of long-term antibiotic prophylaxis in children with high grade reflux with or without renal hypodysplasia.

The use of antibiotics during the first few months of life has been associated with a significant increase in body mass index (BMI). Even though this effect is probably limited, it could have a significant impact on public health given the widespread use of antibiotics and due to the considerable increase in cases of pediatric and adult obesity seen over the last few years.

In spite of the lack of evidence, the use of prophylaxis is largely routine practice in most centres. Therefore, a randomized study is necessary in order to evaluate whether prophylaxis reduces the risk of symptomatic infections and subsequent renal damage.

To assess the role of prophylaxis in patient with high grade vesicoureteral reflux we will perform a multicentre, prospective, randomized, controlled, open-label, study.

Patients enrolled will be randomized in two groups:

Group A: no antibiotic prophylaxis. Group B: antibiotic prophylaxis for 24 months. The choice of which antibiotic to prescribe from the list below is left to the discretion of each investigator, on the basis of local antibiotic resistance patterns.

  • nitrofurantoin 1.5-2 mg/kg per day
  • amoxicilline/clavulanic acid 15 mg/kg per day (dose expressed in units equivalent to amoxicillin)
  • cefixime 2 mg/kg per day
  • trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

The study is comprised of:

  • Phase 1: Pre-randomization - screening tests to determine eligibility for the trial.
  • Phase 2: Active treatment - this phase follows randomization and foresees 24 months of antibiotic prophylaxis for Group B and clinical surveillance for Group A.
  • Phase 3: Follow-up - a further 36 months of clinical, laboratory and instrumental evaluation of renal function and the progression of renal damage for a total follow-up period of 5 years
02

Conditions studied

  • Vesicoureteral Reflux
  • Renal Hypodysplasia, Nonsyndromic, 1
  • Chronic Kidney Disease

Keywords

  • antibiotic prophylaxis
  • vesicoureteral reflux
  • congenital abnormalities of kidney
  • renal hypodysplasia
  • chronic kidney disease
03

In context

Kidney Diseases

3,840 studies on the registry are indexed under Kidney Diseases; 500 are open to participants now.

This study's enrollment of 292 is above the median of 70 across 2,640 interventional studies indexed under Kidney Diseases.

Browse Kidney Diseases studies →

Lead sponsor

Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico is the lead sponsor of 214 studies on the registry; 71 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
1 Month to 4 Months
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Age between 1 and 4 months (> 4 weeks and \<20 weeks of post-natal age)
  • Gestational age > 35 weeks
  • Glomerular filtration rate (calculated according to Schwartz) > 15 ml/min/1.73 m2
  • No previous symptomatic UTI
  • Imaging Diagnostic work-up completed and presence of grade III to V vesicoureteral reflux
  • Informed consent of parents

Exclusion criteria

Exclusion Criteria:

  • Age \<1 and >4 months
  • Gestational age \< 35 weeks
  • Glomerular filtration rate (calculated according to Schwartz) \< 15 ml/min/1.73 m2 at three months of age
  • Patients with neurogenic bladder, myelomeningocele, ureteropelvic junction and/or ureterovesical junction obstruction, or other malformations leading to potential voiding disturbances.
  • Presence of urethral valves
  • Patients with no or low grade reflux (grade I and II).
  • Hypersensitivity to the all the utilized antimicrobial agent
  • Children with serious clinical conditions which, according to the investigator, prevent them from being included in the study cohort.
  • Use of experimental drugs in the month previous to the beginning of the study
  • Children unable to follow the established protocol procedures or whose parents are unable to sign the informed consent.
05

Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
292 participants (actual)

Study arms

  • Active comparator
    ANTIBIOTIC PROPHYLAXIS

    Children in this arm will take antibiotic prophylaxis for 2 years. Patients in this arm will do clinical/instrumental follow-up for 5 years. The antibiotic for prophylaxis will be chosen by Physicians according to the local resistance spectrum of bacteria responsible of UTIs Physicians can chose one the following schedules: * nitrofurantoin 1.5-2 mg/kg per day * Amoxicillin-Potassium Clavulanate Combination 15 mg/kg per day (dose expressed in units equivalent to amoxicilline) * cefixime 2 mg/kg per day * trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

    Drug: nitrofurantoin · Drug: Amoxicillin-Potassium Clavulanate Combination · Drug: Trimethoprim/sulfamethoxazole · Drug: Cefixime

  • Experimental
    NO PROPHYLAXIS

    Children in this arm will not take antibiotic prophylaxis. Patients in this arm will do clinical/instrumental follow-up for 5 years

    Other: No prophylaxis

Interventions

  • Drugnitrofurantoin

    antibiotic prophylaxis of urinary tract infections The antibiotic for prophylaxis will be chosen by Physicians according to the local resistance spectrum of bacteria responsible of UTIs Physicians can chose one the following schedules: * nitrofurantoin 1.5-2 mg/kg per day * amoxicilline/clavulanic acid 15 mg/kg per day (dose expressed in units equivalent to amoxicilline) * cefixime 2 mg/kg per day * trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

    Also known as: Furadantin

  • OtherNo prophylaxis

    children will be followed, but no antibiotic prophylaxis will be administered

  • DrugAmoxicillin-Potassium Clavulanate Combination

    antibiotic prophylaxis of urinary tract infections The antibiotic for prophylaxis will be chosen by Physicians according to the local resistance spectrum of bacteria responsible of UTIs Physicians can chose one the following schedules: * nitrofurantoin 1.5-2 mg/kg per day * amoxicilline/clavulanic acid 15 mg/kg per day (dose expressed in units equivalent to amoxicilline) * cefixime 2 mg/kg per day * trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

    Also known as: amoxicilline/clavulanic acid, augmentin, clavulin

  • DrugTrimethoprim/sulfamethoxazole

    antibiotic prophylaxis of urinary tract infections The antibiotic for prophylaxis will be chosen by Physicians according to the local resistance spectrum of bacteria responsible of UTIs Physicians can chose one the following schedules: * nitrofurantoin 1.5-2 mg/kg per day * amoxicilline/clavulanic acid 15 mg/kg per day (dose expressed in units equivalent to amoxicilline) * cefixime 2 mg/kg per day * trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

    Also known as: bactrim

  • DrugCefixime

    antibiotic prophylaxis of urinary tract infections The antibiotic for prophylaxis will be chosen by Physicians according to the local resistance spectrum of bacteria responsible of UTIs Physicians can chose one the following schedules: * nitrofurantoin 1.5-2 mg/kg per day * amoxicilline/clavulanic acid 15 mg/kg per day (dose expressed in units equivalent to amoxicilline) * cefixime 2 mg/kg per day * trimethoprim/sulfamethoxazole 2.5 mg/kg per day (dose expressed in units equivalent to trimethoprim)

    Also known as: cefixoral

06

What researchers measure

Primary outcomes

  1. urinary tract infections rate

    Urinary tract infections will be strictly monitored in all enrolled patients (both group A and group B). The rate of urinary tract infections in the first 24 months from the enrolment will be compared between 2 groups

    Time frame: during the first 24 months from enrolment

Secondary outcomes

  1. febrile urinary tract infections

    Febrile urinary tract infections will be strictly monitored in all enrolled patients (both group A and group B). The rate of febrile urinary tract infections in the first 24 months from the enrolment will be compared between 2 groups

    Time frame: during the first 24 months from enrolment

  2. renal scars

    the appearance of renal scars in a dimercaptosuccinic acid (DMSA) scan will be detected at 2 and 5 years from enrolment and compared between the 2 groups.

    Time frame: at 2 years and 5 years from enrolment

  3. serum creatinine (renal function)

    The renal function (serum creatinine) will be monitored for all enrolled patients to explore the appearance and progression of renal damage

    Time frame: at the enrolment,1 year, 2 years, 3 years, 4 years, 5 years

  4. hypertension

    the appearance of hypertension will be monitored at every visit in all enrolled children

    Time frame: at 4, 8, 12, 18, 24, 36, 48, 60 months from enrolment

  5. proteinuria

    the appearance of proteinuria will be monitored at every visit in all enrolled children

    Time frame: at 4, 8, 12, 18, 24, 36, 48, 60 months from enrolment

  6. body mass index

    body mass index will be evaluated at 2 and 5 years of follow-up and it will be correlated to the use of antibiotic prophylaxis

    Time frame: at 2 and 5 years from enrolment

  7. serum cystatin C (renal function)

    The renal function (serum cystatin-C) will be monitored for all enrolled patients to explore the appearance and progression of renal damage

    Time frame: at the enrolment,1 year, 2 years, 3 years, 4 years, 5 years

  8. modification in gut microbiota induced by continuous antibiotic exposure during the first months of life

    A stool sample will be collected, frozen and stored for gut microbiota and resistome profile analysis

    Time frame: at the enrollment, 4 months, 8 months, 12 months, 2 years, 3 years, 4 years, 5 years

07

Study locations

1 site
  • Pediatric Nephrology Dialysis and Transplant Unit IRCCS Ca'Granda
    Milan, 20122, Italy
08

References and documents

Individual participant data

Plan to share: Undecided

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 28, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02021006
Lead sponsor
Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico
Collaborators
Ministero della Salute, Italy, IL Sogno di Stefano
Responsible party
Giovanni Montini (Prof., Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico) — Principal investigator
First posted
Dec 27, 2013
Start date
Dec 2013
Primary completion
Jan 2020
Completion
Jan 2025 (estimated)
Last update
Sep 28, 2023

Study contacts

Giovanni Montini, MD
study chair · Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan
Franz Schaefer, Professor
study director · Center for Pediatrics and Adolescent Medicine Division of Pediatric Nephrology, Heidelberg, Germany
Otto Mehls, Professor
principal investigator · Center for Pediatrics and Adolescent Medicine Division of Pediatric Nephrology, Heidelberg, Germany
Lutz T. Weber, Professor
principal investigator · Ärztlicher Leiter der Kindernephrologie Klinik und Poliklinik für Kinder- und Jugendmedizin Uniklinik Köln - Köln
Aleksandra M Zurowska, Professor
principal investigator · Medical University of Gdansk, Department Paediatric & Adolescent Nephrology & Hypertension - Gdansk - Poland
Fatos Yalcinkaya, Professor
principal investigator · Department of Pediatric Nephrology, School of Medicine, Ankara University, Ankara, Turkey
Esra Baskin, Professor
principal investigator · Paediatric Nephrology Division, Department of Paediatrics, Faculty of Medicine, Baskent University, Ankara, Turkey
Enrico Verrina, MD
principal investigator · UOC Nefrologia, Dialisi e Trapianto, IRCCS Giannina Gaslini, Genova, Italy
William Morello, MD
principal investigator · Pediatric Nephrology, Dialysis and Transplant Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milan
Piotr Czarniak, MD
principal investigator · Department of Nephrology, Transplantology and Internal Medicine, Medical University of Gdansk, Gdansk - Poland

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion