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Without antibiotic prophylaxis in children with mild vesicoureteral reflux (grade 0-2) after a first urinary tract infection. : A multicenter trial.

Without antibiotic prophylaxis in children with mild vesicoureteral reflux (grade 0-2) after a first urinary tract infection. : A multicenter trial. - Without antibiotic prophylaxis in children with mild vesicoureteral reflux after a first urinary tract infection.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000001806
Enrollment
130
Registered
2009-03-27
Start date
2008-12-01
Completion date
Unknown
Last updated
2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Urinary tract infection

Interventions

Non-administration of antibiotics.

Sponsors

Tokyo Metropolitan Children's Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Diagnosed first episode of UTI 8 weeks before registration. First episode of UTI 1. Body temperature >= 38.0 degrees C. 2. Positive results of urine culture by single strain (>= 10000 CFU/ml by bladder catheterization or >= 1000 CFU/ml by bladder aspiration). 2) The presence of VUR grade 0-2, monolateral or bilateral, diagnosed 2 weeks before registration. 3) Ages at the time of diagnosis of UTI are 1 months to < 4 years. 4) Written informed consent from the patients' parents or legal guardians.

Exclusion criteria

Exclusion criteria: 1) Gestational age < 37 weeks. 2) Weight at birth < 2000g. 3) Complex urologic malformations. 4) Neurogenic bladder. 5) Hydronephrosis or ureteral dilation over grade 3 according to SFU classification. 6) Phimosis and ballooning at urination. 7) Previous episode of UTI. 8) Using antibiotic prophylaxis for another infection. 9) Renal dysfunction at recovery phase of UTI. (By EIA method, <1year old: sCr >= 0.4, >=1year old: sCr >= 0.5) 10) Hypertension at recovery phase of UTI. 11) Liver dysfunction at recovery phase of UTI. (AST or ALT exceed over 2.5 times the upper limit of normal). 12) Known to be immunocompromised status. 13) Intractable UTI (duration of fever >= 7days after beginning of antibiotics). 14) Complicated septic shock or DIC. 15) Judged inappropriate for this study by the physician.

Design outcomes

Primary

MeasureTime frame
Relapse free survival of upper urinary tract infection.

Secondary

MeasureTime frame
Relapse free survival of asymptomatic bacteriuria or cystitis. Incidence of renal scars with DMSA renal scintigraphy. Rate of non recurrence of upper urinary tract infection. Development rate of renal dysfunction.

Countries

Japan

Contacts

Public ContactRiku Hamada

Tokyo Metropolitan Children's Medical Center Deparment of nephrology

riku_hamada@tmhp.jp042-300-5111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026