Antibiotic Prophylaxis to Prevent Post-procedure UTI After VCUG (APPrUV)

H

Hamilton Health Sciences (HHS)

Status and phase

Not yet enrolling
Phase 4

Conditions

Voiding Cystourethrogram
Febrile Urinary Tract Infection
Antibiotic Prophylaxis

Treatments

Other: Placebo
Drug: Antibiotic Prophylaxis

Study type

Interventional

Funder types

Other

Identifiers

NCT05438082
19481

Details and patient eligibility

About

The current practice of pre-VCUG antibiotic prophylaxis is highly variable. A recent unpublished survey of Society of Fetal Urologists (SFU) completed by this study team found that 87% of respondents reported having patients who develop fUTI following VCUG, with 30% of respondents prophylaxing for fUTI in patients undergoing VCUG. The current lack of best practice guidelines regarding antibiotic prophylaxis prior to VCUG due to low quality of current literature, and a growing concern around risks of unnecessary antibiotic exposure suggests the need for an RCT. The results of this pilot trial will inform the ability to conduct a definitive RCT on this important subject. The results of the definitive trial would have important clinical and economic implications.

Full description

What are the Study Objectives? The primary objective of this pilot trial is to determine the feasibility of conducting a definitive trial investigating whether pre-VCUG antibiotic prophylaxis, when compared to placebo, decreases the risk of fUTI in infants undergoing VCUG for genitourinary abnormalities. The pilot trial will address specific feasibility outcomes including process, resources, management and scientific domains. The pilot will lay the groundwork for the eventual full trial. Funding for the full trial will be sought after preliminary data is collected from the pilot study. The primary objective for the definitive trial is to determine whether single-dose, preprocedural antibiotic prophylaxis compared to placebo lowers the risk of fUTI in children < 3 years of age who are undergoing VCUG for the following indications: high-grade (SFU Classification III, IV/UTD 2,3) HN, ureteral dilatation, or bladder abnormalities found during renal ultrasound. The secondary outcomes of the definitive trial will include assessment of adverse event outcomes related to antibiotic prophylaxis administration, including antibiotic resistant UTI pathogens, episodes of antibiotic associated diarrhea, and C. difficile.

Enrollment

84 estimated patients

Sex

All

Ages

Under 3 years old

Volunteers

Accepts Healthy Volunteers

Inclusion criteria

  • Children <3 years of age undergoing VCUG for the following indications: high-grade SFU/UTD hydronephrosis, ureteral dilatation, or bladder abnormalities found during renal ultrasound
  • Parent or legal guardian able to provide informed consent

Exclusion criteria

  • Chronic antibiotic use
  • Allergy to Trimethoprim or Trimethoprim-Sulfamethoxazole

Trial design

Primary purpose

Prevention

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Quadruple Blind

84 participants in 2 patient groups, including a placebo group

Antibiotic Prophylaxis
Experimental group
Description:
one dose of either Trimethoprim (if < 2 months) or Trimethoprim-Sulfamethoxazole (if ≥ 2 months) or placebo in suspension. Dosing regimen for the active treatment (Trimethoprim) will be based on weight (5mg/kg of Trimethoprim component) with a maximum dosage of 320mg.
Treatment:
Drug: Antibiotic Prophylaxis
Placebo
Placebo Comparator group
Description:
The placebo group will receive an equal volume of placebo suspension that has been developed to have the same colour and taste as the antibiotic to preserve blinding.
Treatment:
Other: Placebo

Trial contacts and locations

0

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Central trial contact

Sarah Khan, MD

Data sourced from clinicaltrials.gov

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