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Effect of DrugPhase 4NCT06479720

Efficacy of Solifenacin or Mirabegron With Local Estrogen Versus Combination Pharmacotherapy for Overactive Bladder

A Phase 4 study testing Combined pharmacotherapy with Solifenacin and Mirabegron, Solifenacin with vaginal estrogen cream and Mirabegron with vaginal estrogen cream in people with Effect of Drug and Urinary Bladder, Overactive, run by Mackay Memorial Hospital at 1 site in Taiwan.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

To investigates the effects of solifenacin or mirabegron with local estrogen versus combination treatment with solifenacin and mirabegron in women with overactive bladder Read more about this study

Who is it for?
Ages 40 to 90 years, women only
Conditions the study is for
Effect of Drug, Urinary Bladder, Overactive
What is being tested?
Combined pharmacotherapy with Solifenacin and Mirabegron, Solifenacin with vaginal estrogen cream and Mirabegron with vaginal estrogen cream
Could I receive a placebo?
No, everyone receives an active treatment
How many people
300 participants
Where
1 siteTaiwan
Study dates
16 Jun 2022to 31 Dec 2026
Phase
Phase 4
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 90 years
  • Women only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Hui-Hsuan Lau, MD contact

+886-2-25433535

huihsuan1220@gmail.com

Taiwan1 site, 1 recruiting
  • Mackay Memorial Hospital

    Taipei

    Jiun Chyi Hwang, MD, +886-2-2543-3535, jiun1989@gmail.com

    Recruiting

Other trials in Taiwan

About this study

Official title: Efficacy and Safety of Solifenacin or Mirabegron With Local Estrogen Versus Combination Treatment With Mirabegron and Solifenacin for Refractory Overactive Bladder

To investigates the effects of solifenacin or mirabegron with local estrogen versus combination treatment with solifenacin and mirabegron in women with overactive bladder

Read the detailed description

Women with detrusor overactivity who were refractory to anti-muscarinics or mirabegron were enrolled for prospective study. Patients were divided into three groups: combined pharmacotherapy with solifenacin and mirabegron, solifenacin with vaginal estrogen cream and mirabegron with vaginal estrogen cream. Incontinence-related symptoms distress and impact on quality of life were evaluated by short form of Urinary Distress Inventory, (UDI-6), Incontinence Impact Questionnaire (IIQ-7) and Overactive Bladder Symptom Score (OABSS). Objective outcomes include changes from baseline in episodes of daily micturition, urgency, urinary incontinence and nocturia.

Being tested
Combined pharmacotherapy with Solifenacin and Mirabegron, Solifenacin with vaginal estrogen cream, Mirabegron with vaginal estrogen cream
Keywords
Detrusor overactivity, Combined pharmacotherapy, Estrogens, Effectiveness
Medical subject headings
Urinary Bladder, Overactive

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Combined pharmacotherapy with Solifenacin and MirabegronDrug

    Also called Vesicare and Betmiga

    Solifenacin (5mg) is anticholinergic and Mirabegron (25mg) is a beta-3 adrenergic agonist.

  • Solifenacin with vaginal estrogen creamDrug

    Also called Vesicare and Premarin

    Solifenacin (5mg) is anticholinergic. Premarin, vaginal conjugated equine estrogen vaginal cream (0.625 mg).

  • Mirabegron with vaginal estrogen creamDrug

    Also called Betmiga and Premarin

    Mirabegron (25mg) is a beta-3 adrenergic agonist. Premarin, vaginal conjugated equine estrogen vaginal cream (0.625 mg).

Study groups in NCT06479720
Study groupRoleWhat they receive
Solifenacin and mirabegronActive comparatorSolifenacin 5mg and Mirabegron 25mg
Receives: Drug: Combined pharmacotherapy with Solifenacin and Mirabegron
Solifenacin with vaginal estrogen creamExperimentalSolifenacin 5mg once per day with vaginal conjugated equine estrogen (CEE) 0.625 mg twice a week.
Receives: Drug: Solifenacin with vaginal estrogen cream
Mirabegron with vaginal estrogen creamExperimentalMirabegron 25mg once per day with vaginal conjugated equine estrogen (CEE) 0.625 mg twice a week.
Receives: Drug: Mirabegron with vaginal estrogen cream

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 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.

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

  2. 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.

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

  3. 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.

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

Secondary outcomes (4)
  1. Episodes of daily micturition

    Patients report daily lower urinary tract symptoms episodes

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

  2. Episodes of daily urgency

    Patients report daily lower urinary tract symptoms episodes

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

  3. Episodes of daily incontinence

    Patients report daily lower urinary tract symptoms episodes

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

  4. Episodes of daily nocturia

    Patients report daily lower urinary tract symptoms episodes

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

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted28 Jun 2024
  2. Study start16 Jun 2022
  3. Primary completion30 Jun 2026 (estimated)
  4. Study completion31 Dec 2026 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
300 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06479720
Sponsor's protocol ID
22MMHIS039e-3
Status last verified
Jul 2024
First submitted
23 Jun 2024
Last updated
9 May 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • 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.

    PubMed 31039103
  • 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.

    PubMed 30644570
  • Cardozo L, Lose G, McClish D, Versi E. A systematic review of the effects of estrogens for symptoms suggestive of overactive bladder. Acta Obstet Gynecol Scand. 2004 Oct;83(10):892-7. doi: 10.1111/j.0001-6349.2004.00581.x.

    PubMed 15453881

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Combined pharmacotherapy with Solifenacin and Mirabegron, Solifenacin with vaginal estrogen cream and Mirabegron with vaginal estrogen cream in people with Effect of Drug and Urinary Bladder, Overactive, run by Mackay Memorial Hospital at 1 site in Taiwan.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 9 May 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Hui-Hsuan Lau, MD (+886-2-25433535, huihsuan1220@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Short form of Urinary Distress Inventory (UDI-6) (time frame: Assess before treatment and 1 month, 3 months, 6 months and 1 year after treatment). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT06479720, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 May 2025.

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