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Study to Evaluate the Clinical Efficacy and Safety of Tamsulosin Alone or in Combination With Solifenacin for the Treatment in Men With Lower Urinary Tract Symptoms Including Overactive Bladder Symptoms

An Open-label, Randomized, Parallel Study to Evaluate the Clinical Efficacy and Safety of Tamsulosin Alone or in Combination With Solifenacin for the Treatment in Men With Lower Urinary Tract Symptoms Including Overactive Bladder Symptoms

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02715024
Enrollment
52
Registered
2016-03-22
Start date
2007-09-30
Completion date
2011-04-30
Last updated
2016-03-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Benign Prostatic Hyperplasia (BPH), Lower Urinary Tract Symptoms, Overactive Bladder

Keywords

Tamsulosin, Solifenacin, Lower urinary tract symptoms, Overactive bladder

Brief summary

The objective of this study is to evaluate the clinical efficacy and safety of tamsulosin alone or in combination with solifenacin for the treatment in men with lower urinary tract symptoms (LUTS) including overactive bladder (OAB) symptoms in Taiwan.

Interventions

DRUGTamsulosin

Oral

DRUGSolifenacin

Oral

Sponsors

Astellas Pharma Taiwan, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
45 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Clinical signs and symptoms of frequency and urgency related to benign prostatic hyperplasia for at least 3 months * I-PSS(S) score of ≥ 12 * Maximum flow rate (Qmax) of 4 to15 mL/sec * Mean urinary frequency of ≥ 8 micturitions per 24 hours and ≥ 1 episode of urgency per 24 hours as verified by the 3-day micturition diary * Benign digital rectal examination (DRE) result

Exclusion criteria

* Clinically significant outflow obstruction * Significant post void residue volume (PVR \>100ml) * Prostate specific antigen (PSA) ≥10 ng/mL * Previous or planned prostate surgery, including transurethral resection of the prostate (TURP) * Transurethral microwave treatment (TUMT), transurethral needle ablation (TUNA), laser, or other invasive or minimally invasive procedures within 12 months * Patient with a neurological cause for abnormal detrusor activity * Patients with urinary tract infection, chronic inflammation, bladder stones, bladder neck, sclerosis, urethral stricture, prostatic cancer, severe vesical diverticulum * Uncontrolled narrow angle glaucoma, urinary or gastric retention or any other medical condition which in the opinion of the investigator makes the use of anticholinergics contra-indicated * Patients with any other complication which may cause voiding dysfunction * Patients with severe hepatic dysfunction, severe renal dysfunction, severe cardiovascular disorder, orthostatic hypotension, or senile dementia * Patients receiving any medication therapy for LUTS/BPH 2 weeks prior to the study * Use of drugs to treat incontinence currently * Hypersensitivity to tamsulosin and/or solifenacin or to any component of the formulation * Any clinically significant condition, which in the opinion of the investigator makes the patients unsuitable for the trial * Patients had taken any investigational drug in the previous 3 months prior to this study

Design outcomes

Primary

MeasureTime frame
Change in International Prostate Symptoms Score (IPSS-(S)) from baseline to the end of treatmentBaseline and end of treatment (up to 12 weeks)

Secondary

MeasureTime frameDescription
Change in mean number of micturitions per 24 hours from baseline to the end of treatmentBaseline and end of treatment (up to 12 weeks)
Change in Quality of life index (I-PSS-(L)) from baseline to the end of treatmentBaseline and end of treatment (up to 12 weeks)
Change in maximum flow rate (Qmax) and voided volume determined by uroflowmetry from baseline to the end of treatmentBaseline and end of treatment (up to 12 weeks)
Change in mean number of urgency episode per 24 hours from baseline to the end of treatmentBaseline and end of treatment (up to 12 weeks)
Safety as assessed by postvoid residual volume (PVR)Up to 12 weeksMeasured by bladder scan
Safety as assessed by vital signsUp to 12 weeks
Safety as assessed by laboratory parametersUp to 12 weeks
Safety as assessed by adverse eventsUp to 12 weeks

Countries

Taiwan

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026