Comparing Botox injections to combined medication for overactive bladder
Official title: Evaluation of the Efficacy and Urodynamic Outcomes Between Intradetrusor onabotulinumtoxinA Injection and Combination Pharmacotherapy in Patients With Detrusor Overactivity
Run by Mackay Memorial Hospital · NCT05968885 · Data updated 2026-11-12
This study is testing whether Botox injections or a mix of two medications can help people with overactive bladder who haven't found relief from other treatments.
Quick facts
| Phase | Phase 4 |
|---|---|
| Study type | Interventional |
| Ages | 20 Years to 90 Years |
| Sex | Women only |
| Enrollment | 300 (estimated) |
| Sponsor | Mackay Memorial Hospital Academic / other |
| Locations | 1 site (Taipei) |
| Status | Recruiting |
| Started | October 1, 2021 |
| Main results expected | June 30, 2026 |
| Study ends | December 31, 2026 |
| Registry record updated | May 9, 2025 |
| Trial ID | NCT05968885 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates are patients with detrusor overactivity who have not found relief from monotherapy with anti-muscarinics or β3-adrenoceptor agonists.
✕Probably not a fit
Patients with postvoid urine retention prior to treatment may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This study investigates the effectiveness of botulinum toxin type A bladder injections compared to a combination of Mirabegron and Solifenacin in patients with detrusor overactivity who have not responded to single-drug treatments. Participants will be divided into two groups, receiving either the Botox injection or the combined pharmacotherapy. The study will assess both subjective symptoms related to incontinence and objective measures such as urinary urgency and bladder capacity. Evaluations will be conducted using standardized questionnaires and urodynamic assessments.
Why it matters
Potential benefit: If successful, this study could provide a more effective treatment option for patients suffering from refractory overactive bladder.
How similar studies have gone: Other studies have shown promising results with botulinum toxin for overactive bladder, indicating that this approach has been tested and may be effective.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * 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 Exclusion Criteria: * Postvoid urine retention before treatment
Where it's running
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Mackay Memorial Hospital
Taipei, Taiwan Recruiting
Study contacts
- Principal investigator: Hui-Hsuan Lau, MD — Mackay Memorial Hospital
- Study coordinator: Hui-Hsuan Lau, MD
- Email: huihsuan1220@gmail.com
- Phone: +886-2-25433535
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Extended ambulatory bladder monitoring with the Glean Urodynamics System
This will test whether the Glean Urodynamics System can safely monitor bladder function in adults who need urodynamic testing, both during a clinic visit and for up to 24 hours at home.
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Comparing solifenacin or mirabegron with local estrogen to combined pharmacotherapy for overactive bladder
This study is testing whether combining solifenacin or mirabegron with local estrogen works better than just using solifenacin and mirabegron alone for women with overactive bladder who haven't found relief from other treatments.
-
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This study tests whether a combination of two medications or a medication with vaginal estrogen cream helps women with overactive bladder feel better and have fewer symptoms.
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Educational video before urodynamic testing to see if it lowers anxiety
This study tests whether watching a short educational video before urodynamics helps reduce anxiety for women undergoing the test.
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Perineal versus intravaginal electrical stimulation for idiopathic overactive bladder in women
This study will test whether adding intravaginal or perineal electrical stimulation to bladder training helps women with idiopathic overactive bladder reduce urgency and leakage compared with bladder training alone.
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.