ClinicalTrials.gg
RecruitingNCT04305743Updated Nov 5, 2020

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

A Phase 4 interventional study of OnabotulinumtoxinA 100 UNT in Urinary Bladder, Overactive, Incontinence, Urge and Incontinence, Urinary, sponsored by University of South Florida. Recruiting at 2 sites in United States. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2020-11-05.

Sponsored by University of South Florida · Phase 4, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Jan 2021, 5 years 10 months ago, but the record still lists the study as recruiting.
  • Registered 5 months after the study started (first participant enrolled Oct 2019, registered Mar 2020).
  • Started Oct 2019; still recruiting 7 years 1 month later.
Phase
Phase 4
Study type
Interventional
Enrollment
60
Allocation
Randomized
Ages
18 Years and older
Sex
Female
01

Study 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.

Read the 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.

02

Conditions studied

  • 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
03

In context

Urinary Bladder, Overactive

858 studies on the registry are indexed under Urinary Bladder, Overactive; 127 are open to participants now.

This study's planned enrollment of 60 is below the median of 70 across 649 interventional studies indexed under Urinary Bladder, Overactive.

Browse Urinary Bladder, Overactive studies →

Lead sponsor

University of South Florida is the lead sponsor of 340 studies on the registry; 65 are open to participants now.

Of its 17 completed or terminated interventional studies of FDA-regulated products, 4 (24%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

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

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 .
  • 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.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    5 Injections

    Participant's bladder is backfilled with 50 mL of 1% lidocaine for 15 minutes, then drained prior to procedure start. Dose of 100 units onabotulinumtoxin A with dilution to 100 Units/10 mL with preservative-free 0.9% Sodium Chloride Injection is prepared. Cystoscopy is performed. The 23 gauge Laborie InjeTAK needle is inserted 3 mm into the detrusor. 5 injections of 2 mL each (total volume of 10 mL) in a single procedure is performed 1 cm apart in the bladder body. For the final injection, approximately 1 mL of sterile normal saline should be injected such that the remaining onabotulinumtoxin A in the needle is delivered to the bladder.

    Drug: OnabotulinumtoxinA 100 UNT

  • Active comparator
    20 Injections

    Participant's bladder is backfilled with 50 mL of 1% lidocaine for 15 minutes, then drained prior to procedure start. Dose of 100 units onabotulinumtoxin A with dilution to 100 Units/10 mL with preservative-free 0.9% Sodium Chloride Injection is prepared. Cystoscopy is performed. The 23 gauge Laborie InjeTAK needle is inserted 3 mm into the detrusor. 20 injections of 0.5 mL each (total volume of 10 mL) in a single procedure is performed 1 cm apart in the bladder body. For the final injection, approximately 1 mL of sterile normal saline should be injected such that the remaining onabotulinumtoxin A in the needle is delivered to the bladder.

    Drug: OnabotulinumtoxinA 100 UNT

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.

    Also known as: BOTOX

06

What researchers measure

Primary outcomes

  1. Pain from procedure: score

    Pain score as rated on a 10-point visual analog scale within 5 minutes of procedure completion

    Time frame: Within 5 minutes of procedure completion

Secondary outcomes

  1. Duration of procedure

    Total 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

    Time frame: Procedure time

  2. Positive treatment response

    The percentage of patients with a positive treatment response based on answering a Global Response Assessment given 6 weeks after completion of procedure

    Time frame: 6 weeks post-procedure

  3. Urinary tract infections

    Percentage of patients with culture-proven post-procedure urinary tract infections within 12 weeks of procedure

    Time frame: 12 weeks post-procedure

  4. Urinary retention

    Percentage of patients with post-procedure urinary retention requiring clean intermittent catheterization within 12 weeks of procedure

    Time frame: 12 weeks post-procedure

07

Study locations

2 of 2 sites recruiting
  • MedStar Washington Hospital Center
    Washington, District of Columbia 20010, United States
    Recruiting
    • Nancy Ringel, MD · Contactnringel@gmail.com
    • Amy Park, MD · Sub investigator
    • Cheryl Iglesia, MD · Sub investigator
    • Nancy Ringel, MD · Principal investigator
  • University of South Florida Health South Tampa Center for Advanced Healthcare
    Tampa, Florida 33606, United States
    Recruiting
    • Eric S Chang, MD · Contactericchang@usf.edu · 813-259-8500
    • Allison Wyman, MD · Contactawyman@usf.edu · 813-259-8500
    • Isabel Prieto, MD · Sub investigator
    • Ryan Hidalgo, MD · Sub investigator
    • Renee Bassaly, DO · Sub investigator
    • Kristie Greene, MD · Sub investigator
    • Allison Wyman, MD · Sub investigator
    • Eric S Chang, MD · Principal investigator
08

References and documents

Publications

  • Chang ES, Ringel N, Woodburn KL, Tanner JP, Bassaly R, Greene K, Wyman A, Iglesia C. Postprocedural Pain Associated With 5 Versus 20 Intradetrusor Injections of onabotulinumtoxinA for Treatment of Overactive Bladder: A Multicenter Randomized Clinical Trial. Urogynecology (Phila). 2022 Aug 1;28(8):518-525. doi: 10.1097/SPV.0000000000001199. Epub 2022 May 12. PubMed 35543540 ↗

Individual participant data

Plan to share: No — All statistical analyses will be performed at the University of South Florida. The investigators performing review of data and statistical analyses will not require the use of, or have access to any personally identifying patient information from either the primary or secondary site of the study.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Oct 2019 (actual). Primary completion is estimated for Jan 2021, 14 months after the start.

Of 42 non-industry phase 4 interventional studies under Urinary Bladder, Overactive, half reached primary completion within 29 months of starting (the median), counting those still running; a quarter within 18 and three quarters within 51. This study's planned 14 months is below that.

Counting every sponsor, half of 54 studies reached it within 23 months; a quarter within 15 and three quarters within 48.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 9, 2020
First posted
Mar 12, 2020
StartActual
Oct 9, 2019
Primary completionEst.
Jan 1, 2021
CompletionEst.
Jun 1, 2021
Last update
Nov 5, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Nov 5, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04305743
Responsible party
Eric Chang (Fellow Physician, University of South Florida) — Principal investigator
First posted
Mar 12, 2020
Start date
Oct 9, 2019
Primary completion
Jan 1, 2021 (estimated)
Completion
Jun 1, 2021 (estimated)
Last update
Nov 5, 2020

Study contacts

Eric S Chang, MD
Contact
ericchang@usf.edu
813-259-8500
Allison Wyman, MD
Contact
awyman@usf.edu
813-259-8500
Eric S Chang, MD
principal investigator · University of South Florida

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Onabotulinum toxin A

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