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Oral vs Intravesical Analgesia for Office Bladder Botox Injections

Oral Phenazopyridine Versus Intravesical Lidocaine for Office OnabotulinumtoxinA Analgesia: A Randomized Controlled Trial

Status
UNKNOWN
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03755089
Acronym
OPIL
Enrollment
110
Registered
2018-11-27
Start date
2018-11-01
Completion date
2021-03-01
Last updated
2020-05-29

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

Conditions

Overactive Bladder Syndrome, Urge Incontinence, Urinary Incontinence, Detrusor Hyperreflexia, Detrusor Instability

Brief summary

OnabotulinumtoxinA (Botox®) bladder injections are a highly effective treatment for overactive bladder and urgency urinary incontinence. The procedure is typically performed in the office setting with one of two medications to control comfort. However, the effectiveness of these medications has never been compared. The goal of this study is to determine which medication is better at providing comfort during bladder Botox® injections.

Detailed description

The primary aim of this randomized clinical trial is to compare the analgesic effect of oral phenazopyridine to that of intravesical lidocaine during intradetrusor injections of onabotulinumtoxinA performed for idiopathic overactive bladder. The investigators will achieve this by measuring the mean visual-analog pain scores (VAS) in women who are randomized to receive either oral phenazopyridine or intravesical lidocaine. Secondary aims include assessment of: 1. Overall Patient Satisfaction: To compare overall patient satisfaction with the onabotulinumtoxinA injection procedure in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation. 2. Ease of Procedure: To compare the physician's perception of ease of onabotulinumtoxinA injection procedure in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation. 3. Office Efficiency/Total Appointment Duration: To compare total appointment time or total time spent in an office exam/procedure room in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation.

Interventions

200mg PO Phenazopyridine taken 1-2 hours prior to the Botox® injection procedure

30mL 2% lidocaine instilled into the bladder lumen 20 via a urinary catheter 20 minutes prior to the Botox® injection procedure

Sponsors

Women and Infants Hospital of Rhode Island
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

* Non-pregnant, adult females 18 years of age or older * Diagnosis of idiopathic overactive bladder * Planning office-based bladder injection of onabotulinumtoxinA * Willing and able to complete all study related items and interviews * Grossly neurologically normal on exam

Exclusion criteria

* Known neurologic diseases (multiple sclerosis, Parkinson Disease, CVA within 6 months, myasthenia gravis, Charcot-Marie-Tooth disease, peripheral neuropathy, and complete spinal cord injury) believed to affect urinary function * Planned injection of \>100 units of onabotulinumtoxinA * OnabotulinumtoxinA given for another indication within the previous 3 months (if cumulative dose would total \>400 units) * Any intradetrusor onabotulinumtoxinA injections in the previous 12 months * Serum creatinine level greater than twice the upper limit of normal within the year prior to enrollment * Allergy to lidocaine * Allergy to onabotulinumtoxinA * Allergy to phenazopyridine * Untreated urinary tract infection (UTI) * Currently pregnant or lactating. * Known urinary retention (post-void residual \>200mL) and inability to perform intermittent self-catheterization * Uninvestigated hematuria (gross or microscopic) * Current or prior bladder malignancy * Previous bladder augmentation or surgically altered detrusor muscle * Prior pelvic radiation * Primary language other than English or Spanish

Design outcomes

Primary

MeasureTime frameDescription
Analgesic Effect Measured with 100mm Visual Analog ScaleImmediately post-procedureThe visual analog scale is a visual representation of pain severity rated from 0 (no pain) to 10 (worst pain imaginable). Therefore higher numbers represent more pain.The scale is represented visually using a 100 millimeter line and patients indicate their level of pain by pointing to a location on the line.

Secondary

MeasureTime frameDescription
Overall Patient SatisfactionImmediately post-procedureOverall patient satisfaction with the onabotulinumtoxinA injection procedure in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation. Overall satisfaction will be measured with a single-item question utilizing a Likert scale with options ranging from very satisfied to very unsatisfied.
Ease of ProcedureImmediately post-procedurePhysician's perception of ease of onabotulinumtoxinA injection procedure in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation. This will be measured with a single item, five point Likert scale with options ranging from no difficulty to great difficulty.
Office Efficiency/Total Appointment DurationImmediately post-procedureTotal appointment time or total time spent in an office exam/procedure room in women randomized to pre-procedure oral phenazopyridine versus those randomized to intravesical lidocaine instillation. This will be measured by subtracting the appointment start time (time the patient was placed in the exam room) from the appointment end time (time of patient check-out).

Countries

United States

Contacts

Primary ContactLauren E Stewart, MD
lstewart@wihri.org401-453-7560

Outcome results

None listed

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