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Overactive BladderPhase 4NCT03508921

Comparison of Methods for Prevention of Urinary Tract Infection Following Botox Injection

A Phase 4 study testing Periprocedural Antibiotics, Extended Antibiotics and Injection of OnabotulinumtoxinA (BTX-A) in people with Overactive Bladder and Urinary Tract Infections, run by Vanderbilt University Medical Center at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial 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… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Overactive Bladder, Urinary Tract Infections
What is being tested?
Periprocedural Antibiotics, Extended Antibiotics and Injection of OnabotulinumtoxinA (BTX-A)
Could I receive a placebo?
No, everyone receives an active treatment
How many people
22 participants
Where
1 siteUnited States
Study dates
1 Jul 2018to 1 Jun 2022
Phase
Phase 4
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

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

Who cannot join

  • 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

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Vanderbilt University Medical Center

    Nashville, Tennessee, 37232

Other trials in United States

About this study

Official title: Comparison of Methods for Prevention of Urinary Tract Infection Following Botox Injection: a Non-Inferiority Trial

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.

Read the detailed description

Intravesical injection of OnabotulinumtoxinA (BTX-A) is a widely practiced third line therapy for non-neurogenic overactive bladder (OAB). However, a paucity of data exists regarding urinary tract infections (UTI), the most common adverse event following injection. The investigators propose a randomized, controlled cross-over trial to investigate the utility of commonly practiced antibiotic protocols and simultaneously derive information regarding risk factors for post-procedural UTIs and their affect on treatment efficacy.

The investigators plan to initiate a prospective, randomized non-inferiority cross-over trial, in which a participant receives peri-procedural antibiotics exclusively at the time of one injection, and then at a subsequent injection, completes a three-day course of antibiotics post-operatively in addition to the peri-procedural dose. Enrollment is planned to achieve a total of 68 participants. Participants will be evaluated at 3 weeks and 3 months following injection to identify adverse events and treatment success. Inter-injection time will be measured and used a surrogate for efficacy over multiple injections.

These results, in addition to filling a void in current literature regarding the increasingly utilized treatment with BTX-A, have the potential to modify clinical practice regarding antibiotic use and decrease rates of adverse events. The means to stratify patients based on their specific risk of UTI may be used to facilitate antibiotic stewardship and improve patient outcomes.

Being tested
Periprocedural Antibiotics, Extended Antibiotics, Injection of OnabotulinumtoxinA (BTX-A)
Keywords
Onabotulinumtoxin
Medical subject headings
Urinary Bladder, Overactive, Urinary Tract Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Periprocedural AntibioticsDrug

    Also called trimethoprim/sulfamethoxazole

    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.

  • Extended AntibioticsDrug

    Also called trimethoprim/sulfamethoxazole

    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.

  • Injection of OnabotulinumtoxinA (BTX-A)Procedure or surgery

    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.

Study groups in NCT03508921
Study groupRoleWhat they receive
Periprocedural Antibiotics OnlyExperimentalPatients receive a one-time dose of antibiotics at the time of injection, prior to injection.
Receives: Drug: Periprocedural Antibiotics; Procedure: Injection of OnabotulinumtoxinA (BTX-A)
Extended AntibioticsExperimentalPatients receive a peri-procedural dose of antibiotics and an extended (3-day) course of antibiotics to be taken post-procedurally.
Receives: Drug: Periprocedural Antibiotics; Drug: Extended Antibiotics; Procedure: Injection of OnabotulinumtoxinA (BTX-A)

What is being measured

The primary outcome is the main question the study is designed to answer.

  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.

    Measured: 3 weeks post-injection

Secondary outcomes (2)
  1. Urinary Retention

    Number of participants with urinary retention > 250 cc post-procedurally as measured by post void residual volume using a bladder scanner in clinic.

    Measured: 3 weeks post-injection

  2. Recurrent Urinary Tract Infection

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

    Measured: 3 weeks post injection

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2018
  2. Study start1 Jul 2018
  3. Primary completion1 Jun 2022
  4. Study completion1 Jun 2022

Why it stopped: Early termination due to recruitment and follow-up challenges during the pandemic

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
22 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03508921
Sponsor's protocol ID
00011112222
Status last verified
Oct 2023
First submitted
13 Mar 2018
Last updated
2 Nov 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Periprocedural Antibiotics, Extended Antibiotics and Injection of OnabotulinumtoxinA (BTX-A) in people with Overactive Bladder and Urinary Tract Infections, run by Vanderbilt University Medical Center at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 7 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 2 Nov 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 2 Nov 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Post Procedural- Urinary Tract Infection (time frame: 3 weeks post-injection). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Nov 2023.

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