Comparison of Solifenacin and Mirabegron in Treatment of Overactive Bladder Symptoms in Men After TURP

NCT ID: NCT03632772

Last Updated: 2018-08-24

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE2

Total Enrollment

130 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-08-01

Study Completion Date

2019-07-31

Brief Summary

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Urinary frequency urgency and urgency urinary incontinence (UUI) are commonly encountered in patients after transurethral prostatectomy (TURP) or transurethral incision of the prostate (TUIP). Antimuscarinics has been widely used to treat OAB and around 70% of patients can improve symptoms after treatment. Beta-3 adrenoceptor agonist (mirabegron) can also decrease DO and improve OAB symptoms. Combination treatment of solifenacin 5mg plus mirabegron 25 or 50mg was more effective than mirabegron 50mg alone, but with more anticholinergic side effects. However, there has been no clinical trial to compare which drug provides more benefit to decrease the OAB symptom severity immediately after TURP. This study tries to compare the safety and therapeutic efficacy between solifenacin and mirabegron in men with BPH and having OAB symptoms immediately after TURP.

This study was designed as a prospective, randomized trial to compare the safety and efficacy of OAB medication on the decrease of overactive bladder symptoms score (OABSS) and urgency severity score (USS) between solifenacin 5mg QD and mirabegron 50mg QD in men with BPH undergoing TURP. A total of 130 male patients with BPH and undergo TURP or TUIP will be enrolled. The primary end point is the change of USS from baseline to 4 weeks after catheter removal and starting OAB medication. Secondary end-points include the changes of OABSS, frequency episodes, urgency episodes, UUI episodes in the 3-day voiding diary, maximum flow rate (Qmax), voided volume and PVR, International Prostate Symptom Score (IPSS) and quality of life index (QoL-I) from baseline to 2 weeks and 4 weeks.

We expect that patients receiving solifenacin and mirabegron might have similar therapeutic effects on decrease of USS, but patients who received mirabegron might have less adverse events such as dry mouth or difficulty in urination.

Detailed Description

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Introduction:

Urinary frequency urgency and urgency urinary incontinence (UUI) are commonly encountered in patients after transurethral prostatectomy (TURP) or transurethral incision of the prostate (TUIP). \[1\] Patients usually bother by these overactive bladder (OAB) symptoms. The causes of postprostatectomy OAB might be detrusor overactivity (DO) before TURP, increase afferent input due to acute inflammation after TURP, or a weak urethral sphincter which cannot hold urine at the bladder capacity. Antimuscarinics and beta-3 adrenoceptor agonist are two different classes of medication for OAB. \[2\] Antimuscarinics has been widely used to treat OAB and around 70% of patients can improve symptoms after treatment. Beta-3 adrenoceptor agonist (mirabegron) can also decrease DO and improve OAB symptoms. Combination treatment of solifenacin 5mg plus mirabegron 25 or 50mg was more effective than mirabegron 50mg alone, but with more anticholinergic side effects. \[3\] However, antimuscarnics might decrease detrusor contractility and result in increase of postvoid residual (PVR) volume. Current clinical studies reveal that mirabegron does not impair detrusor contractility or increase PVR. \[4\] Under this consideration, mirabegron has been widely used to treat male lower urinary tract symptoms (LUTS) due to benign prostate hyperplasia (BPH). \[5\] However, there has been no clinical trial to compare which drug provides more benefit to decrease the OAB symptom severity immediately after TURP. This study tries to compare the safety and therapeutic efficacy between solifenacin and mirabegron in men with BPH and having OAB symptoms immediately after TURP.

Material and methods:

Objectives and Endpoints: This study was designed as a prospective, randomized trial to compare the safety and efficacy of OAB medication on the decrease of overactive bladder symptoms score (OABSS) and urgency severity score (USS) between solifenacin 5mg QD and mirabegron 50mg QD in men with BPH undergoing TURP.

Randomization: Permuted block randomization method will be applied to generate randomization codes. Each randomization number will be assigned to individual patient according to the time-sequence for screened patient become eligible.

Expected Results:

Patients receiving solifenacin and mirabegron might have similar therapeutic effects on decrease of USS, but patients who received mirabegron might have less adverse events such as dry mouth or difficulty in urination.

Conditions

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Overactive Bladder Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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Solifenacin 5 mg for 4 weeks

Solifenacin 5 mg once-daily for 4 weeks.

Group Type EXPERIMENTAL

Solifenacin 5Mg

Intervention Type DRUG

We compared the safety and therapeutic efficacy between Solifenacin and Mirabegron in men with benign prostate hyperplasia and having overactive bladder symptoms immediately after Transurethral Resection of the Prostate.

Mirabegron 50 mg for 4 weeks

Mirabegron 50 mg once-daily for 4 weeks.

Group Type EXPERIMENTAL

Mirabegron 50 MG

Intervention Type DRUG

We compared the safety and therapeutic efficacy between Solifenacin and Mirabegron in men with benign prostate hyperplasia and having overactive bladder symptoms immediately after Transurethral Resection of the Prostate.

Control: non treatment

Control: non treatment.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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Solifenacin 5Mg

We compared the safety and therapeutic efficacy between Solifenacin and Mirabegron in men with benign prostate hyperplasia and having overactive bladder symptoms immediately after Transurethral Resection of the Prostate.

Intervention Type DRUG

Mirabegron 50 MG

We compared the safety and therapeutic efficacy between Solifenacin and Mirabegron in men with benign prostate hyperplasia and having overactive bladder symptoms immediately after Transurethral Resection of the Prostate.

Intervention Type DRUG

Other Intervention Names

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Vesicare Betmiga

Eligibility Criteria

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Inclusion Criteria

1. Male patients with BPH and undergo TURP or TUIP.
2. Patients void smoothly after catheter removal.
3. No active urinary tract infection.
4. No gross hematuria or blood clot obstruction.
5. Patient or his care giver can complete voiding diary and report symptoms.

Exclusion Criteria

1. Patients have overt neurological diseases such as cerebrovascular disease, senile dementia or spinal cord injury.
2. Patients have severe medical disease and completely immobile.
3. Patients have PVR larger than 150ml.
4. Patients do not have OAB after TURP.
Minimum Eligible Age

20 Years

Maximum Eligible Age

80 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Buddhist Tzu Chi General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Hann-Chorng Kuo

Chairman and Professor, Department of Urology

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Hann-Chorng Kuo, M.D.

Role: PRINCIPAL_INVESTIGATOR

Department of Urology, Buddhist Tzu Chi General Hospital, Hualien

Locations

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Buddhist Tzu Chi General Hospital

Hualien City, , Taiwan

Site Status RECRUITING

Countries

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Taiwan

Central Contacts

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Hann-Chorng Kuo, M.D.

Role: CONTACT

886-3-8561825 ext. 12113

Facility Contacts

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Hann-Chorng Kuo, M.D.

Role: primary

886-3-8561825 ext. 2113

References

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Seki N, Yuki K, Takei M, Yamaguchi A, Naito S. Analysis of the prognostic factors for overactive bladder symptoms following surgical treatment in patients with benign prostatic obstruction. Neurourol Urodyn. 2009;28(3):197-201. doi: 10.1002/nau.20619.

Reference Type BACKGROUND
PMID: 18973143 (View on PubMed)

Yamada S, Ito Y, Nishijima S, Kadekawa K, Sugaya K. Basic and clinical aspects of antimuscarinic agents used to treat overactive bladder. Pharmacol Ther. 2018 Sep;189:130-148. doi: 10.1016/j.pharmthera.2018.04.010. Epub 2018 Apr 27.

Reference Type BACKGROUND
PMID: 29709423 (View on PubMed)

Kelleher C, Hakimi Z, Zur R, Siddiqui E, Maman K, Aballea S, Nazir J, Chapple C. Efficacy and Tolerability of Mirabegron Compared with Antimuscarinic Monotherapy or Combination Therapies for Overactive Bladder: A Systematic Review and Network Meta-analysis. Eur Urol. 2018 Sep;74(3):324-333. doi: 10.1016/j.eururo.2018.03.020. Epub 2018 Apr 23.

Reference Type BACKGROUND
PMID: 29699858 (View on PubMed)

Wada N, Iuchi H, Kita M, Hashizume K, Matsumoto S, Kakizaki H. Urodynamic Efficacy and Safety of Mirabegron Add-on Treatment with Tamsulosin for Japanese Male Patients with Overactive Bladder. Low Urin Tract Symptoms. 2016 Sep;8(3):171-6. doi: 10.1111/luts.12091. Epub 2015 Feb 17.

Reference Type BACKGROUND
PMID: 27619782 (View on PubMed)

Nitti VW, Rosenberg S, Mitcheson DH, He W, Fakhoury A, Martin NE. Urodynamics and safety of the beta(3)-adrenoceptor agonist mirabegron in males with lower urinary tract symptoms and bladder outlet obstruction. J Urol. 2013 Oct;190(4):1320-7. doi: 10.1016/j.juro.2013.05.062. Epub 2013 May 30.

Reference Type BACKGROUND
PMID: 23727415 (View on PubMed)

Stoniute A, Madhuvrata P, Still M, Barron-Millar E, Nabi G, Omar MI. Oral anticholinergic drugs versus placebo or no treatment for managing overactive bladder syndrome in adults. Cochrane Database Syst Rev. 2023 May 9;5(5):CD003781. doi: 10.1002/14651858.CD003781.pub3.

Reference Type DERIVED
PMID: 37160401 (View on PubMed)

Other Identifiers

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TCGH107-115-A

Identifier Type: -

Identifier Source: org_study_id

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