NCT03508921

Brief Summary

Injection of OnabotulinumtoxinA (BTX-A) into the bladder is a widely used treatment option for patients with overactive bladder who have failed medical therapy. Urinary tract infection is the most common side effect of this procedure and therefore antibiotics are given around the time of injection in order to prevent these events. While antibiotics are commonly given at the time of injection, the duration of these antibiotic regimens are variable. The investigators propose a study to investigate different antibiotic protocols and their affect on the rate of urinary tract infection after injection.

Trial Health

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Trial Health Score

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

Enrollment
22

participants targeted

Target at below P25 for phase_4

Timeline
Completed

Started Jul 2018

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
terminated

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

First Submitted

Initial submission to the registry

March 13, 2018

Completed
1 month until next milestone

First Posted

Study publicly available on registry

April 26, 2018

Completed
2 months until next milestone

Study Start

First participant enrolled

July 1, 2018

Completed
3.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 1, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

June 1, 2022

Completed
1.4 years until next milestone

Results Posted

Study results publicly available

November 2, 2023

Completed
Last Updated

November 2, 2023

Status Verified

October 1, 2023

Enrollment Period

3.9 years

First QC Date

March 13, 2018

Results QC Date

June 17, 2023

Last Update Submit

October 31, 2023

Conditions

Keywords

Onabotulinumtoxin

Outcome Measures

Primary Outcomes (1)

  • Post Procedural- Urinary Tract Infection

    Number of participants with post procedural- urinary tract infection 3 weeks after injections, measured by a urine culture and defined as a urine culture with \>10\^5 bacterial colonies in the setting of urinary symptoms.

    3 weeks post-injection

Secondary Outcomes (2)

  • Urinary Retention

    3 weeks post-injection

  • Recurrent Urinary Tract Infection

    3 weeks post injection

Study Arms (2)

Periprocedural Antibiotics Only

EXPERIMENTAL

Patients receive a one-time dose of antibiotics at the time of injection, prior to injection.

Drug: Periprocedural AntibioticsProcedure: Injection of OnabotulinumtoxinA (BTX-A)

Extended Antibiotics

EXPERIMENTAL

Patients receive a peri-procedural dose of antibiotics and an extended (3-day) course of antibiotics to be taken post-procedurally.

Drug: Periprocedural AntibioticsDrug: Extended AntibioticsProcedure: Injection of OnabotulinumtoxinA (BTX-A)

Interventions

One the day of injection, after eligibility is determined and consent obtained, research staff will refer to the randomization list to determine to which arm the patient is randomized. Patients randomized to the "Procedural Antibiotics Only" arm will receive a single dose of trimethoprim/sulfamethoxazole (800/160mg) peri-procedurally at the time of the first injection.

Also known as: trimethoprim/sulfamethoxazole
Extended AntibioticsPeriprocedural Antibiotics Only

Patients randomized to the "Extended Antibiotics" arm will receive one dose of trimethoprim/sulfamethoxazole peri-procedurally and additionally be prescribed trimethoprim/sulfamethoxazole twice daily for three days. Patients who are allergic will receive amoxicillin/clavulanic acid (875/125mg) twice daily for three days. If allergic to both of the above antibiotics, patients will receive 100mg nitrofurantoin BID for three days. For their second injection, they will receive peri-procedural antibiotics only.

Also known as: trimethoprim/sulfamethoxazole
Extended Antibiotics

Patients will receive injection of OnabotulinumtoxinA (BTX-A) per standard clinic practice protocol. All patients will undergo injection per a standardized protocol of 1ml injection per site at a concentration of 10 units/ml.

Extended AntibioticsPeriprocedural Antibiotics Only

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • ≥ 18 years of age
  • Medication refractory OAB, identified per American Urological Association guidelines

You may not qualify if:

  • Post void residual urine \>150ml on two occasions
  • Untreated, symptomatic UTI
  • Comorbid neurological conditions, including spinal cord injury, systemic neurologic illnesses (i.e. multiple sclerosis, Parkinson's disease) or central nervous system disease (i.e. brain tumor, stroke)
  • Prior pelvic irradiation
  • Current or prior bladder malignancy
  • Hematuria lacking a clinically appropriate evaluation
  • Chronic indwelling or intermittent catheterization

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Vanderbilt University Medical Center

Nashville, Tennessee, 37232, United States

Location

MeSH Terms

Conditions

Urinary Bladder, OveractiveUrinary Tract Infections

Interventions

Trimethoprim, Sulfamethoxazole Drug Combination

Condition Hierarchy (Ancestors)

Urinary Bladder DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesLower Urinary Tract SymptomsUrological ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsInfections

Intervention Hierarchy (Ancestors)

SulfamethoxazoleBenzenesulfonamidesSulfonamidesAmidesOrganic ChemicalsSulfanilamidesAniline CompoundsAminesBenzene DerivativesHydrocarbons, AromaticHydrocarbons, CyclicHydrocarbonsSulfonesSulfur CompoundsTrimethoprimPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDrug CombinationsPharmaceutical Preparations

Limitations and Caveats

Early termination due to recruitment and follow-up challenges during the pandemic resulting in failure to accrue statistically significant sample size.

Results Point of Contact

Title
Melissa Kaufman, MD, PhD Professor of Urology
Organization
Vanderbilt Medical Center

Study Officials

  • Melissa Kaufman, MD, PhD

    Vanderbilt University Medical Center

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor

Study Record Dates

First Submitted

March 13, 2018

First Posted

April 26, 2018

Study Start

July 1, 2018

Primary Completion

June 1, 2022

Study Completion

June 1, 2022

Last Updated

November 2, 2023

Results First Posted

November 2, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will not share

Locations