NCT04731961

Brief Summary

The overall objective of this study is to determine if a reduced injection site protocol (5 injection sites) using an equivalent amount of Botox provides comparable relief of Urgency Urinary Incontinence (UUI) symptoms compared to the standard injection site protocol (15-20 injection sites). Our central hypothesis is that the 5-site injection protocol is non-inferior in terms of relief of UUI symptoms compared to the standard injection site protocol, measured by a non-inferior reduction in the number of UUI episodes per day.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
56

participants targeted

Target at P25-P50 for not_applicable

Timeline
8mo left

Started Feb 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress89%
Feb 2021Dec 2026

First Submitted

Initial submission to the registry

January 26, 2021

Completed
6 days until next milestone

First Posted

Study publicly available on registry

February 1, 2021

Completed
22 days until next milestone

Study Start

First participant enrolled

February 23, 2021

Completed
4.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

January 28, 2025

Status Verified

January 1, 2025

Enrollment Period

4.9 years

First QC Date

January 26, 2021

Last Update Submit

January 26, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Reducton of Urgency Urinary Incontinence episodes in standard of care versus modified treatment group

    To determine if a reduced injection site protocol (5 injection sites) of intra-detrusor Onabotulinumtoxin-A is non-inferior in the treatment of refractory urgency urinary incontinence as compared to the standard injection site protocol (15 injection sites). This endpoint will be measured by reduction in the number of UUI episodes per day.

    6 months

Secondary Outcomes (2)

  • Quality of life improvement in standard of care (15 injections) versus modified treatment (5 injections)

    6 months

  • Complications rates in standard of care (15 injections) versus modified treatment (5 injections)

    6 months

Study Arms (2)

Controls

ACTIVE COMPARATOR

Subjects in this arm will be administered the standard injection site protocol (15 sites).

Procedure: Standard of care (15 Botox injections)

Experimental

EXPERIMENTAL

Subjects in this arm will be administered the same amount of Botox in 5 injection sites.

Procedure: Experimental Arm (5 Botox injections)

Interventions

The controls will be given the standard of care of 15 Botox injections.

Controls

5 Botox injections will be given, with each injection containing three times the amount of Botox than each of the 15 injections given in the standard of care arm.

Experimental

Eligibility Criteria

Age21 Years+
Sexfemale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Females at least 21 years of age
  • English speaking
  • Five or more urge urinary incontinence episodes on a three-day voiding diary. Urge incontinence episodes will be determined based on voiding diary and subject indication of coincident urge symptoms, allowing for self-characterization of incontinence type
  • Urge predominant (urge \>50% of total incontinent episodes) urinary incontinence based on self-reported characterization of incontinent episodes on diary
  • Patient or caregiver willing to perform clean intermittent catheterization, or patient willing to have indwelling Foley catheter in the event this would be required
  • Request for treatment for urgency urinary incontinence. The patient may have tried other pharmacologic treatments for urge incontinence, such as antispasmodic agents or non-pharmacologic treatments, such as supervised behavioral therapy, supervised physical therapy, unsupervised physical therapy, supervised biofeedback, and transvaginal electrical stimulation.
  • Subject has undergone 3-week washout period if subject were on anticholinergic therapy prior to enrollment
  • Subject is able to complete all study related items and interviews
  • Willingness and ability to comply with scheduled visits and study procedures.

You may not qualify if:

  • Current symptomatic urinary tract infection that has not resolved prior to randomization.
  • Baseline need for intermittent self-catheterization
  • PVR (Post void residual) \>150 mL on 2 occasions with void(s) of greater than 150 mL
  • Surgical treatment for stress incontinence (sling, Burch or urethral injection) or pelvic organ prolapse recommended or planned at enrollment by study investigator(s).
  • Any prior intra-detrusor botulinum toxin A injections
  • Previous or currently implanted neuromodulation (sacral or tibial).
  • Surgically altered detrusor muscle, such as augmentation cystoplasty.
  • Known allergy to botulinum toxin A.
  • Women with known neurologic disease believed to potentially affect urinary function (history of stroke, Parkinson's disease, multiple sclerosis, spinal cord injuries, myasthenia gravis, Charcot-Marie-Tooth disease).
  • Known allergy to lidocaine.
  • Currently pregnant or lactating patients or patients planning pregnancy within the next year.
  • Sexually active premenopausal women with a uterus who have either not had a tubal ligation or are not on a medically approved form of contraception for at least 3 months prior to and throughout the duration of the study.
  • Cystoscopic findings that preclude injection, in the opinion of the investigator.
  • Current or prior bladder malignancy.
  • Inability to understand diary instructions and complete 3-day voiding diary.
  • +5 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Virginia

Charlottesville, Virginia, 22903, United States

RECRUITING

MeSH Terms

Interventions

Standard of Care

Intervention Hierarchy (Ancestors)

Quality Indicators, Health CareQuality of Health CareHealth Services AdministrationHealth Care Quality, Access, and Evaluation

Study Officials

  • Monique J Vaughan, MD

    University of Virginia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Masking Details
The patients will not be informed of which arm they are assigned to before the procedure.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Patients will be assigned to arms with either 5 or 15 injections.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

January 26, 2021

First Posted

February 1, 2021

Study Start

February 23, 2021

Primary Completion

December 31, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

January 28, 2025

Record last verified: 2025-01

Data Sharing

IPD Sharing
Will not share

Locations