Skip to content

Post-procedural Pain Associated With 5 Versus 20 Intravesical Injections of Onabotulinumtoxin A

Post-procedural Pain Associated With 5 Versus 20 Intravesical Injections of Onabotulinumtoxin A for Treatment of Overactive Bladder: a Multi-center Randomized Controlled Trial

Status
Recruiting
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04305743
Enrollment
60
Registered
2020-03-12
Start date
2019-10-09
Completion date
2021-06-01
Last updated
2020-11-05

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

Conditions

Urinary Bladder, Overactive, Incontinence, Urge, Incontinence, Urinary, Urinary Urge Incontinence, Urinary Frequency More Than Once at Night, Nocturia

Keywords

overactive bladder, urgency urinary incontinence, onabotulinumtoxin, bladder, botox

Brief summary

Currently, in clinical practice there has been no standardization in the number of injections a single dose of intradetrusor onabotulinumtoxin A is administered in. Given the increasing use of this treatment modality, the aim of this study is to compare outcomes for patients given a 100 unit dose of onabotulinumtoxin A split into 5 as compared to 20 injections for the treatment of overactive bladder or urgency urinary incontinence refractory to medical treatment.

Detailed description

The intradetrusor injection of onabotulinumtoxin A for treatment of idiopathic overactive bladder and urgency urinary incontinence refractory to anticholinergic or β-agonist treatment was approved by the United States Food and Drug Administration (FDA) in 2013. Since then, multiple randomized placebo-controlled trials have demonstrated the effectiveness of the treatment. Currently, Allergan, Inc. and the FDA recommend the intravesical administration of onabotulinumtoxin A with dilution to 100 units/10 mL with preservative-free 0.9% Sodium Chloride Injection, as 20 injections of 0.5 mL each. Currently, in clinical practice there has been no standardization in the number of intravesical injections, with a single dose of onabotulinumtoxin A being administered in as few as 1 injection to as many as 40 injections into the detrusor muscle. Given the increasing use of this treatment modality, the investigators aim to compare patient outcomes for patients given a 100 unit dose of onabotulinumtoxin A split into 5 as compared to the recommended 20 injections for the treatment of idiopathic overactive bladder or urgency urinary incontinence refractory to medical treatment.

Interventions

Intradetrusor onabotulinumtoxin A is administered cystoscopically with 100 unit dose given as either 5 or 20 injections in a single procedure based on the arm the participant is randomized into.

Sponsors

Medstar Health Research Institute
CollaboratorOTHER
University of South Florida
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Masking description

Participants are randomized into one of two treatment arms (receiving 5 versus 20 injections per treatment with intradetrusor onabotulinumtoxin A) and are not notified of which arm they are participating in.

Intervention model description

Single-blinded randomized controlled trial

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Women \>=18 years of age with diagnosis of urinary urgency, urinary frequency, urgency urinary incontinence, overactive bladder. * Procedure scheduled in either the outpatient clinic or the operating room to be performed without use of sedation, general, or neuraxial anesthesia.

Exclusion criteria

* Male gender. * Women \<18 years of age. * Non-English speaking. * Pregnancy (patient will self-report pregnancy). * Participant has symptoms of overactive bladder due to any known neurological reason (e.g. spinal cord injury, multiple sclerosis, cerebrovascular accident, Alzheimer's disease, Parkinson's disease, etc.) * Participant uses clean intermittent catheterization or indwelling catheter to manage urinary incontinence. * Participant has a history or current diagnosis of bladder cancer or other urothelial malignancy. * Participant has a known allergy or sensitivity to any botulinum toxin preparation. * Participant has any medical condition that may put her at increased risk with exposure to onabotulinumtoxin A, including diagnosed myasthenia gravis, Eaton-Lambert syndrome, or amyotrophic lateral sclerosis. * Participant is scheduled for administration of onabotulinumtoxin A with use of sedation, general, or neuraxial anesthesia.

Design outcomes

Primary

MeasureTime frameDescription
Pain from procedure: scoreWithin 5 minutes of procedure completionPain score as rated on a 10-point visual analog scale within 5 minutes of procedure completion

Secondary

MeasureTime frameDescription
Duration of procedureProcedure timeTotal time of procedure defined as time cystoscope is introduced into the bladder to the time the cystoscope is removed from the bladder after completion of all injections
Positive treatment response6 weeks post-procedureThe percentage of patients with a positive treatment response based on answering a Global Response Assessment given 6 weeks after completion of procedure
Urinary tract infections12 weeks post-procedurePercentage of patients with culture-proven post-procedure urinary tract infections within 12 weeks of procedure
Urinary retention12 weeks post-procedurePercentage of patients with post-procedure urinary retention requiring clean intermittent catheterization within 12 weeks of procedure

Countries

United States

Contacts

Primary ContactEric S Chang, MD
ericchang@usf.edu813-259-8500
Backup ContactAllison Wyman, MD
awyman@usf.edu813-259-8500

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026