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AzTrials

Urinary IncontinencePhase 4NCT06514430

Prophylactic Analgesia for Bladder Botox Injections

A Phase 4 study testing Phenazopyridine and 1% lidocaine with sodium bicarbonate in people with Urinary Incontinence and Urinary Incontinence, Urge, run by Montefiore Medical Center at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The goal of this clinical trial is to learn more about using phenazopyridine (Pyridium) for pain control during bladder onabotulinumtoxinA ("botox") injections for surgical management of overactive bladder (OAB) for patients at Montefiore Medical Center in The Bronx. Read more about this study

Who is it for?
Ages 18 years and older, women only
What is being tested?
Phenazopyridine and 1% lidocaine with sodium bicarbonate
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
Jul 2025to Feb 2026
Phase
Phase 4
Are there results?
None posted in the registry

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
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Women
  • 18 years or older
  • Planning to undergo surgical management of idiopathic overactive bladder with intradetrusor onabotulinumtoxinA injection at Montefiore Medical Center Female Pelvic Medicine Reconstructive Surgery Department
  • Provided informed consent

Who cannot join

  • Currently pregnant
  • Current Urinary Tract Infection (UTI)
  • Neurogenic bladder diagnosis
  • Received pelvic radiotherapy
  • Severe cognitive impairment
  • Non-English or non-Spanish speaking.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Montefiore Medical Center Female Pelvic Medicine Reconstructive Surgery Department

    The Bronx, New York, 10467

Other trials in United States

About this study

Official title: Prophylactic Analgesia in Outpatient Intradetrusor onabotulinumtoxinA Injections: Efficacy and Feasibility of Alternative Pain Control Methods in a Diverse Urban Patient Population

The goal of this clinical trial is to learn more about using phenazopyridine (Pyridium) for pain control during bladder onabotulinumtoxinA ("botox") injections for surgical management of overactive bladder (OAB) for patients at Montefiore Medical Center in The Bronx. It will also learn about if using the phenazopyridine pill affects how satisfied patients are with their experience, how much pain patients feel afterwards, and if doctors think using the Pyridium pill affected how they performed the procedure. The main question it aims to answer is:

  • Is oral phenazopyridine at least as good as intravesical lidocaine is for managing pain with bladder botox injections for OAB in Montefiore patients?
Read more

Researchers will compare phenazopyridine to intravesical lidocaine, a liquid put into the bladder, to see if phenazopyridine is at least as good at controlling pain with bladder botox injections as intravesical lidocaine is.

Participants will be assigned, by chance, to receive either the oral phenazopyridine pill or the intravesical lidocaine as their pain control for the procedure.

Read the detailed description

Urinary incontinence poses personal and emotional hardships to the patients who experience it. Urge urinary incontinence (UUI) is often a result of overactive bladder (OAB) and may exist in combination with stress urinary incontinence (SUI), termed mixed urinary incontinence (MUI). Overall, it is estimated that 25-45% of women experience some degree of urinary incontinence (UI), with increasing prevalence of UI symptoms as women age. Treatment options for UI include expectant management, behavioral modification, pelvic floor physical therapy, continence pessary, vaginal inserts, colposuspension or sling insertion, as well as intradetrusor onabotulinumtoxinA ("botox") injections and urethral bulking procedures.

While intradetrusor onabotulinumtoxinA injection is a viable and effective option for OAB, little is known about effective pain management for patients undergoing this procedure. To date, there has not yet been research on analgesia for bladder Botox injections in diverse, urban populations whose needs and experience of pain may differ from those of other patients. In recent years, there has been renewed attention among patients and discussion within medical communities on the importance of examining biological sex, gender, racial, and ethnic disparities in acute pain management.

In this randomized controlled trial (RCT), the use of oral phenazopyridine compared to intravesical lidocaine as analgesic options for Montefiore patients undergoing surgical management of idiopathic overactive bladder with intradetrusor onabotulinumtoxinA (Botox) injections at the Department of Female Pelvic Medicine and Reconstructive Surgery in the Bronx, will be studied. Oral phenazopyridine is a pre-1938 FDA grandfathered drug that will be utilized in accordance with its indication for the treatment of urinary pain in the outpatient setting. The use of these less invasive but effective analgesic options to manage pain for outpatient urogynecological procedures and their acceptability in a diverse, urban patient population will be examined.

All pain control options included in this study are within the standard of care for bladder Botox injections. Participants will not have any alteration in their clinical care from what would be experienced if not participating in the study other than being randomized to one analgesia protocol.

Being tested
Phenazopyridine, 1% lidocaine with sodium bicarbonate
Keywords
onabotulinumtoxinA (Botox) injection, oral phenazopyridine, intravesical lidocaine, Urban Patient Population, Analgesia, Pain Management, Diverse Populations
Medical subject headings
Urinary Incontinence, Urinary Incontinence, Urge, Urinary Bladder, Overactive, Agnosia

What participants receive

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

  • PhenazopyridineDrug

    Also called Pyridium

    200mg PO Phenazopyridine taken prior to the Botox® injection procedure as an analgesic.

  • 1% lidocaine with sodium bicarbonateDrug

    Also called Intravesical lidocaine

    50cc of 1% lidocaine with 50cc sodium bicarbonate injected into the bladder lumen prior to the Botox® injection procedure.

Study groups in NCT06514430
Study groupRoleWhat they receive
Oral phenazopyridineActive comparatorPatients randomized to the oral phenzopyridine arm will receive 200 milligrams (mg) phenazopyridine orally prior to the scheduled procedure.
Receives: Drug: Phenazopyridine
Intravesical lidocaineActive comparatorPatients randomized to the intravesical lidocaine arm will be administered 50 cubic centimeters (cc) of 1% lidocaine with 50cc sodium bicarbonate within the bladder immediately prior to the procedure.
Receives: Drug: 1% lidocaine with sodium bicarbonate

What is being measured

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

  1. Bladder Pain

    Patient-reported bladder pain will be assessed using the Visual Analog Quality of Life Scale (VAS) tool. The VAS is a unidimensional measure of pain intensity. The 100mm VAS intervention tool consists of an emoji face scale ranging from an "open-mouth smile" emoji to a crying emoji. Patients will place an 'x' on the number line below the emojis to indicate where on the scale they would rate their pain, using the emoji faces as a guide. The distance from the lowest (farthest left) point on this scale to the 'x' will be measured and reported in millimeters. Higher scores are associated with increased levels of bladder pain intensity. Group median pain scores will be tabulated and reported.

    Measured: Day of the procedure

Secondary outcomes (4)
  1. Patient satisfaction

    Overall patient satisfaction will be measured using a 5-point Likert scale range where 5 = very satisfied; 4 = satisfied; 3= neutral; 2 = unsatisfied; and 1 = very unsatisfied. Overall group mean patient satisfaction scores will be summarized and reported. Higher scores are associated with increased levels of patient satisfaction.

    Measured: 3 days post-procedure

  2. Bladder visualization

    Physicians will be queried as to their perception of bladder visualization following the procedure, as oral phenazopyridine is known to temporarily stain the urine orange. Bladder visualization will be performed using cystoscopy to view the inside of the bladder during the procedure. Bladder visualization will be assessed on the following scale: 0 = clear, no difficulty; 1 = somewhat difficult / mildly impaired, 2 = very difficult.

    Measured: Day of the procedure

  3. Bladder Pain

    Patient-reported bladder pain will be assessed using the Visual Analog Quality of Life Scale (VAS) tool. The VAS is a unidimensional measure of pain intensity. The 100mm VAS intervention tool consists of an emoji face scale ranging from an "open-mouth smile" emoji to a crying emoji. Patients will place an 'x' on the number line below the emojis to indicate where on the scale they would rate their pain, using the emoji faces as a guide. The distance from the lowest (farthest left) point on this scale to the 'x' will be measured and reported in millimeters. Higher scores are associated with increased levels of bladder pain intensity. Group median pain scores will be tabulated and reported.

    Measured: 3 days post-operation

  4. Postoperative Analgesia

    Self-reported use of additional analgesia immediately following the procedure will be evaluated as 0 = no additional analgesia and 1 = any additional analgesia. The number of patients who require any additional postoperative analgesic will be summarized and reported.

    Measured: 3 days post-operation

Timeline

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

  1. First posted23 Jul 2024
  2. Study startJul 2025 (estimated)
  3. Primary completionFeb 2026 (estimated)
  4. Study completionFeb 2026 (estimated)

Why it stopped: It was determined that it would be impracticable to conduct this study as a randomized trial. Study has been repurposed as a non-randomized study.

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06514430
Sponsor's protocol ID
2024-16001
Status last verified
Jul 2025
First submitted
17 Jul 2024
Last updated
18 Jul 2025
Results posted
No
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 Phenazopyridine and 1% lidocaine with sodium bicarbonate in people with Urinary Incontinence and Urinary Incontinence, Urge, run by Montefiore 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 4 inclusion and 6 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: withdrawn, as of the sponsor's last update on 18 Jul 2025. 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?

The study was withdrawn before enrolling participants, so there are no results.

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?

Bladder Pain (time frame: Day of the procedure). 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 18 Jul 2025.

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