NCT05968885

Brief Summary

To investigates the effects of botulinum toxin type A bladder injection compared to combined pharmacotherapy with Mirabegron and Solifenacin.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
300

participants targeted

Target at P75+ for phase_4

Timeline
8mo left

Started Oct 2021

Longer than P75 for phase_4

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress88%
Oct 2021Dec 2026

Study Start

First participant enrolled

October 1, 2021

Completed
1.4 years until next milestone

First Submitted

Initial submission to the registry

March 2, 2023

Completed
5 months until next milestone

First Posted

Study publicly available on registry

August 1, 2023

Completed
2.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 30, 2026

Expected
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

May 9, 2025

Status Verified

December 1, 2024

Enrollment Period

4.7 years

First QC Date

March 2, 2023

Last Update Submit

May 6, 2025

Conditions

Keywords

Detrusor overactivityUrodynamic studyCombined pharmacotherapyBotulinum ToxinsEffectiveness

Outcome Measures

Primary Outcomes (3)

  • Short form of Urinary Distress Inventory (UDI-6)

    UDI-6 is a valid questionnaire, used particularly to investigate symptoms associated with lower urinary tract dysfunction and inquire on irritative, stress, and obstructive or discomfort complaints. UDI-6 consists of six items: frequent urination; leakage related to feeling of urgency; leakage related to activity, coughing, or sneezing; small amounts of leakage (drops); difficulty emptying the bladder; and pain or discomfort in the lower abdominal or genital area. The total score ranges from 0 to 18 , with a higher score indicating more severe of incontinence.

    Assess before treatment and 1 month, 3 months, 6 months and 1 year after treatment

  • Short form of Incontinence Impact Questionnaire (IIQ-7)

    The IIQ-7 assess the impact of urinary incontinence on QoL. 7 items assess influence of urinary incontinence on physical activity, travel, social/relationships \& emotional health. Each item is scored between 0 (activities not affected at all) to 3 (activities greatly affected). The total score ranges from 0 to 21, with a higher score indicating more severe of incontinence.

    Assess before treatment and 1 month, 3 months, 6 months and 1 year after treatment

  • Overactive Bladder Symptom Score (OABSS)

    The total OABSS is the sum of four symptom scores: daytime frequency (score 0-2), nighttime frequency (score 0-3), urgency (score 0-5), and urgency incontinence (score 0-5). The total score ranges from 0 to 15, with a higher score indicating more severe of OAB symptoms.

    Assess before treatment and 1 month, 3 months, 6 months and 1 year after treatment

Secondary Outcomes (3)

  • Maximum cystometric capacity

    Assess during 3 months - 1year after treatment

  • Maximum detrusor pressure at first involuntary detrusor contraction

    Assess during 3 months - 1year after treatment

  • Volume at first involuntary detrusor contraction

    Assess during 3 months - 1year after treatment

Study Arms (2)

Intradetrusor onabotulinumtoxinA injection

ACTIVE COMPARATOR

The toxin produced by Clostridium botulinum binds to the nerves endings and inhibits the muscular contractions, help to treat overactivity of the bladder muscles.

Procedure: Intradetrusor Botox® (onabotulinumtoxinA) injection

Combination pharmacotherapy

EXPERIMENTAL

Combine Mirabegron and Solifenacin.

Drug: Combine Mirabegron and Solifenacin.

Interventions

The toxin produced by Clostridium botulinum binds to the nerves endings and inhibits the muscular contractions, help to treat overactivity of the bladder muscles.

Intradetrusor onabotulinumtoxinA injection

Combination pharmacotherapy

Combination pharmacotherapy

Eligibility Criteria

Age20 Years - 90 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsThe study focus on female detrusor overactivity.
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with detrusor overactivity which defined as a urodynamic observation characterized by involuntary detrusor contractions during the filling phase. Those who were refractory to monotherapy with either anti-muscarinics or β3-adrenoceptor agonists were enrolled for prospective study

You may not qualify if:

  • Postvoid urine retention before treatment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Mackay Memorial Hospital

Taipei, Taiwan

RECRUITING

Related Publications (3)

  • Lightner DJ, Gomelsky A, Souter L, Vasavada SP. Diagnosis and Treatment of Overactive Bladder (Non-Neurogenic) in Adults: AUA/SUFU Guideline Amendment 2019. J Urol. 2019 Sep;202(3):558-563. doi: 10.1097/JU.0000000000000309. Epub 2019 Aug 8.

    PMID: 31039103BACKGROUND
  • Mueller ER, van Maanen R, Chapple C, Abrams P, Herschorn S, Robinson D, Stoelzel M, Yoon SJ, Al-Shukri S, Rechberger T, Gratzke C. Long-term treatment of older patients with overactive bladder using a combination of mirabegron and solifenacin: a prespecified analysis from the randomized, phase III SYNERGY II study. Neurourol Urodyn. 2019 Feb;38(2):779-792. doi: 10.1002/nau.23919. Epub 2019 Jan 15.

    PMID: 30644570BACKGROUND
  • Hsieh MH, Hwang JC, Su TH, Lau HH. The Efficacy and Safety Between Intradetrusor OnabotulinumtoxinA Injection and Combined Pharmacotherapy in Patients With Refractory Overactive Bladder: A Randomized Controlled Trial. J Urol. 2025 Oct;214(4):344-353. doi: 10.1097/JU.0000000000004660. Epub 2025 Jul 1.

MeSH Terms

Conditions

Urinary Bladder, Overactive

Interventions

Botulinum Toxins, Type AInjectionsSolifenacin Succinate

Condition Hierarchy (Ancestors)

Urinary Bladder DiseasesUrologic DiseasesFemale Urogenital DiseasesFemale Urogenital Diseases and Pregnancy ComplicationsUrogenital DiseasesMale Urogenital DiseasesLower Urinary Tract SymptomsUrological ManifestationsSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Botulinum ToxinsMetalloendopeptidasesEndopeptidasesPeptide HydrolasesHydrolasesEnzymesEnzymes and CoenzymesMetalloproteasesBacterial ProteinsProteinsAmino Acids, Peptides, and ProteinsBacterial ToxinsToxins, BiologicalBiological FactorsDrug Administration RoutesDrug TherapyTherapeuticsQuinuclidinesHeterocyclic Compounds, Bridged-RingHeterocyclic CompoundsTetrahydroisoquinolinesIsoquinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-Ring

Study Officials

  • Hui-Hsuan Lau, MD

    Mackay Memorial Hospital

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Head of urogynecology, Associate Professor

Study Record Dates

First Submitted

March 2, 2023

First Posted

August 1, 2023

Study Start

October 1, 2021

Primary Completion (Estimated)

June 30, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

May 9, 2025

Record last verified: 2024-12

Data Sharing

IPD Sharing
Will not share

Locations