Antibiotic Prophylaxis With Routine Ureteral Stent Removal (STENTABX)

March 23, 2020 updated by: Roger L Sur, M.D., University of California, San Diego

A Randomized, Prospective, Single-Blinded Control Trial to Assess the Need for Antibiotic Prophylaxis With Routine Ureteral Stent Removal After Kidney Stone Procedure

This study will be a single-institutional randomized, single-blinded prospectively controlled clinical trial of a single dose of Ciprofloxicin 500mg antibiotic tablet as prophylaxis at the time of office flexible cystoscopy with ureteral stent removal. The control group will be no prophylaxis oral antibiotics.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

This study will be a single-institutional randomized, single-blinded prospectively controlled clinical trial of a single dose of Ciprofloxicin 500mg antibiotic tablet as prophylaxis at the time of office flexible cystoscopy with ureteral stent removal. The control group will be no prophylaxis oral antibiotics. The study will be conducted at UCSD Urology outpatient clinic and Genesis Healthcare Partners Urology outpatient clinic. UCSD will be the coordinating institution.

Treatment Assignment:

Patients will be assigned to control or intervention arm based on a predetermined allocation sequence that will be generated by a computerized random number generator. Study staff not participating in patient recruitment or procedure will manage the allocation sequence. Physicians involved in urologic patient care will be blinded from the participants' allocation. Only study staff at the coordinating institution (UCSD) will have access to the full allocation sequence. i.e. no clinical staff involved in recruiting and consenting patients for the study at UCSD or other participating institutions will have knowledge of the allocation sequence at their institution prior to enrollment of each patient. To further aid allocation concealment, the block size will be varied.

Standard of care procedures:

Patients will be identified at the time of clinic visit for cystoscopic stent removal. All patients will be counseled on the American Urological Association's clinical guidelines for prophylactic antibiotic use, and the varied standardization of practice patterns. We will not deviate from routine care standards. Patients undergoing routine ureteral stent removal within two weeks following stone treatment procedure (ie. Percutaneous Nephrolithotomy, Ureteroscopy, Retrograde Intrarenal Surgery, or Extracorporal Shockwave Lithotripsy). Patients that agree to participate and provide consent will be enrolled into the study, receiving a randomized allocation, and specific data points will be collected prospectively. Patients will be consented prior to determination of prophylaxis for collection of demographic, disease, perioperative, and postoperative data. If the patient does not consent to the study the use of antibiotics will be based on the routine clinical practice of the treating urologist.

Investigational portion of treatment:

Patients randomized to the intervention arm will be provided a single oral dose of Ciprofloxacin 500mg at the time of stent removal. Ciprofloxacin is currently indicated for the treatment of acute uncomplicated urinary tract infections. Patients with fluoroquinalone allergy will receive Bactrim (trimethoprim/sulfamethoxazole 160/800mg) single dose instead of Ciprofloxacin. Those patients that do develop infectious complications after stent removal will be treated empirically based on the preference of the treating physician followed by culture specific antibiotics. Centeral prophylaxis randomization will take place at UCSD, as the lead site, using staff members not involved in patient management. Randomization will occur in block randomization in block sizes of 10.

Standard of care procedures Patients will have cystoscopy and stent removal performed in standard fashion, without deviation from standard of care. The time frame of stent removal after initial stone procedure is consistent with current standard of care. If the treating physician's preference is to maintain the patient's indwelling stent for longer than two weeks, then the patient would not be considered for this study. No patient's management course will be altered for inclusion into this study.

All female patients are screened with a urinary pregnancy test during the preoperative screening visit, which occurs before the kidney stone surgery. Any pregnant female patients will be excluded from participation in this study. Post-operative instructions include refraining from sexual activity. Cystoscopic stent removal is performed within 14 days of surgery.

Demographic fields that will be obtained preoperatively include age, race, gender, body mass index (BMI), and comorbidities including history of diabetes mellitus, immunosuppression, prior urinary tract infection(s), neurogenic bladder, incomplete bladder emptying. Pre-operative clinical data points will include kidney stone size (largest diameter as measured on coronal imaging for either kidney-ureter-bladder plain x-ray or computerized tomography) and pre-operative urine culture results.

Post-procedure fields will include post-void residual urine volume per bladder scan (to assess emptying capability), culture of urine collected during stent removal (only to be treated with antibiotics if patient becomes symptomatic - per standard of care), stone culture results, stone analysis, and stone-free status. Phone call interview will occur between 7-14 days post-operatively to determine if any post-operative infectious events have occurred. Any infectious symptoms (see below) will prompt mid-stream clean catch specimen for urinalysis and urine culture. During this period, patients will be closely observed for infectious complication--ie. symptomatic urinary tract infection, defined as presence of bacteruria (>5k colony forming units) with any of the following: fever >38 C, malodorous urine, dysuria, urinary frequency, urinary urgency, lower abdominal discomfort, back pain, gross hematuria. . Patients will be evaluated at 8 weeks for re-assessment in the clinic with a renal bladder ultrasound performed at 6 weeks, which is the routine post-operative care.

Study Type

Interventional

Enrollment (Anticipated)

80

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Diego, California, United States, 92101
        • Recruiting
        • University of California, San Diego
        • Contact:
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Age: >=18 years of age

Gender: both men and women included. We anticipated enrolling a study population of approximately 60% men and 40% women based on a higher incidence of kidney stones among men in NHANES data.

Ethnic background: all ethnicities will be included in the study population and the specific ethnic diversity present in the study population will reflect the geographic distributions of the participating institutions.

Health Status: see below for specific inclusion/exclusion criteria.

Inclusion criteria:

  • Patients with indwelling ureteral stents placed within the 2 weeks prior to the procedure visit for removal
  • Patients having underwent kidney stone treatment surgery (shockwave lithotripsy [SWL], ureteroscopy [URS], retrograde intrarenal surgery [RIRS], percutaneous nephrolithotomy [PNL]) Exclusion criteria
  • Patients with indwelling urethral catheter
  • Patients with indwelling suprapubic catheter
  • Patients with indwelling nephrostomy tube
  • Patients who perform clean intermittent catheterization
  • Pregnancy

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Antibiotic
Patients randomized to the intervention arm will be provided a single oral dose of prophylactic oral antibiotic at the time of cystoscopic stent removal
Drug: Ciprofloxacin
first line prophylactic oral antibiotic
Drug: trimethoprim/sulfamethoxazole
second line prophylactic oral antibiotic
Other Names:
  • Bactrim
  • Septra
Active Comparator: No Antibiotic
Patients randomized to the non-intervention arm will not undergo prophylaxis at the time of cystoscopic stent removal
Drug: No Intervention
No intervention

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Post-procedure Infectious Complication
Time Frame: 30 days
Urinary Tract Infection (UTI)
30 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Patient Risk Factors Predisposing to Post-procedure Infectious Complications
Time Frame: 30 days
Urinary Tract Infection (UTI) Risk Factors
30 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of California, San Diego

Collaborators

Genesis HealthCare

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

January 1, 2016

Primary Completion (Anticipated)

January 1, 2025

Study Completion (Anticipated)

January 1, 2025

Study Registration Dates

First Submitted

October 24, 2016

First Submitted That Met QC Criteria

October 24, 2016

First Posted (Estimate)

October 26, 2016

Study Record Updates

Last Update Posted (Actual)

March 24, 2020

Last Update Submitted That Met QC Criteria

March 23, 2020

Last Verified

March 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 160160

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

Secure Server Data Sharing System

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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