Clinical trial Recruiting at 1 site Phase 4 Interventional Ages 40 to 90 Women only

Comparing two treatments for women with overactive bladder

Official title: Efficacy and Safety of Solifenacin Combined With Mirabegron Versus Solifenacin With Vaginal Estrogen Cream for the Treatment of Detrusor Overactivity

Run by Mackay Memorial Hospital · NCT06197295 · Data updated 2026-11-12

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.

Quick facts

PhasePhase 4
Study typeInterventional
Ages40 Years to 90 Years
SexWomen only
Enrollment200 (estimated)
SponsorMackay Memorial Hospital
Academic / other
Locations1 site (Taipei)
StatusRecruiting
StartedJune 16, 2022
Main results expectedJune 30, 2026
Study endsDecember 31, 2026
Registry record updatedMay 9, 2025
Trial IDNCT06197295 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are women with detrusor overactivity who have not responded to previous anti-muscarinic therapy.

Probably not a fit

Patients with contraindications to solifenacin, mirabegron, or estrogen therapy will 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 combined pharmacotherapy using solifenacin and mirabegron compared to solifenacin with vaginal estrogen cream in women suffering from detrusor overactivity. Women who have not responded to anti-muscarinic treatments are enrolled and divided into two groups to receive one of the two treatment regimens. The study evaluates both subjective outcomes, such as quality of life and symptom distress, and objective outcomes, including changes in urinary frequency and incontinence episodes. The goal is to determine which treatment provides better relief from symptoms.

Why it matters

Potential benefit: If successful, this study could provide a more effective treatment option for women suffering from detrusor overactivity.

How similar studies have gone: Other studies have explored similar pharmacotherapy combinations, but this specific comparison is novel.

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 anti-muscarinics were enrolled for prospective study.

Exclusion Criteria:

* Postvoid urine retention before treatment
* Women who had medical illness and contraindication for using solifenacin and mirabegron, such as narrow-angle glaucoma and hypertension
* Concerns for using estrogen include: Women with history of cerebrovascular disease; thromboembolic disorders; gallbladder disease; known or suspected breast carcinoma; estrogen-dependent neoplasm or undiagnosed abnormal genital bleeding.
* Women who were on hormone replacement therapy within 3 months were also excluded from the study

Where it's running

  • Mackay Memorial Hospital
    Taipei, Taiwan
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.