- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00368979
Dutasteride (GI198745) In Benign Prostatic Hyperplasia Subjects
Clinical Evaluation of Dutasteride in Benign Prostatic Hyperplasia: A Randomized, Double-Blind, Placebo-Controlled, Parallel Group Comparative Study of GI198745 (Dutasteride) in Subjects With Benign Prostatic Hyperplasia.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
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-
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Chiba, Japan, 263-0043
- GSK Investigational Site
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Chiba, Japan, 266-0031
- GSK Investigational Site
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Chiba, Japan, 272-0107
- GSK Investigational Site
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Fukuoka, Japan, 802-0077
- GSK Investigational Site
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Fukuoka, Japan, 810-0001
- GSK Investigational Site
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Fukuoka, Japan, 830-0027
- GSK Investigational Site
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Hyogo, Japan, 660-0052
- GSK Investigational Site
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Kanagawa, Japan, 215-0021
- GSK Investigational Site
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Kanagawa, Japan, 226-0025
- GSK Investigational Site
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Kanagawa, Japan, 229-1103
- GSK Investigational Site
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Kanagawa, Japan, 245-0015
- GSK Investigational Site
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Kanagawa, Japan, 252-0804
- GSK Investigational Site
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Kanagawa, Japan, 259-1132
- GSK Investigational Site
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Kyoto, Japan, 604-8436
- GSK Investigational Site
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Oita, Japan, 871-0012
- GSK Investigational Site
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Oita, Japan, 874-0937
- GSK Investigational Site
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Osaka, Japan, 542-0073
- GSK Investigational Site
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Osaka, Japan, 562-0036
- GSK Investigational Site
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Osaka, Japan, 584-0074
- GSK Investigational Site
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Tokyo, Japan, 130-0026
- GSK Investigational Site
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Tokyo, Japan, 131-0032
- GSK Investigational Site
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Tokyo, Japan, 150-0002
- GSK Investigational Site
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Tokyo, Japan, 152-0001
- GSK Investigational Site
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Tokyo, Japan, 153-0051
- GSK Investigational Site
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Tokyo, Japan, 183-0044
- GSK Investigational Site
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Tokyo, Japan, 186-0011
- GSK Investigational Site
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
Only subjects who meet all the following criteria during the screening phase will be enrolled in the study.
- Diagnosis: BPH
- Age: ≥50 years
- Gender: Male
- Estimated prostate volume ≥30cc (by TRUS)
- I-PSS Symptom Score (total of 7 items) ≥8 points
- Maximum flow rate (Qmax) ≤15mL/sec (voided volume measured simultaneously ≤150mL)*[1]
Patients who meet either of the following regarding tamsulosin HCl use:
Patients with tamsulosin HCl use:
Patients who have received tamsulosin HCl continuously for at least 4 weeks and who are likely to continue to take tamsulosin HCl without any change to the dosage and administration of the drug until the end of study treatment.
Patients without tamsulosin HCl use:
Patients who haven't received tamsulosin HCl in the past 4 weeks and who are unlikely to use tamsulosin HCl until the end of study treatment.
- Outpatients
- Patients who in person have given written consent
Exclusion Criteria:
Patients who apply to any of the following criteria during the screening phase will not be enrolled in the study.
- Post void residual volume >250mL (by suprapubic ultrasound).
- History of AUR within the previous 12 weeks.
- Evidence or history of prostate cancer.
- PSA >10ng/mL [in patients with PSA >4ng/mL, the presence of prostate cancer should be ruled out by the investigator/subinvestigator. DRE and free/total PSA ratio should be considered, and prostate biopsy be conducted if necessary].
- Previous surgery (including balloon dilatation, thermotherapy and stent placement) or minimally invasive techniques for BPH.
- Any causes other than BPH, which may in the judgment of the investigator/subinvestigator, affect evaluation of symptoms or urine flow (e.g., neurogenic bladder, bladder neck contracture, urethral stricture, bladder malignancy, acute/chronic prostatitis, acute/chronic urinary tract infection).
- History of any unstable, serious co-existing medical condition(s) including, but not limited to, myocardial infarction, coronary bypass surgery, unstable angina, cardiac arrhythmias*[2], congestive heart failure or cerebrovascular accident within the previous 6 months; or diabetes mellitus or peptic ulcer uncontrollable with medical treatment.
- Liver function tests (AST, ALT, AL-P) >2 times the upper limit of normal.
- Serum cleatinine >1.8mg/dL.
- Use of any antiandrogen (e.g., chlormadinone acetate, allylesterenol) for BPH within the previous 12 months.
- Use of a1-adrenoceptor blockers excluding tamsulosin HCl (e.g., prazosin HCl, urapidil slow-release capsule formulation, terazosin HCl, naftopidil), plant extract preparations for treatment of BPH (e.g., Eviprostat, cernitin pollen extract), herbal medicines (e.g., hachimi-jio-gan, gosha-jinki-gan), other drugs (e.g., Paraprost), and dietary or herbal supplements (e.g., saw palmetto) for relief of BPH symptoms within the previous 4 weeks.
Use of a-adrenoceptor agonists (e.g., pseudoephedrine, phenyle
- [1] Subjects with voided volume <150 mL at Qmax measurement cannot be enrolled in the study and may undergo re-measurement of Qmax before the visit for Week 0 for study entry.
- [2] Of "Degree II" according to "Grading of Side Effects (PMSB Notification No. 80 dated June 29, 1992) or equivalent (Appendix 4).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Placebo Comparator: Placebo
|
once daily
|
Active Comparator: Dutasteride
|
once daily
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change From Baseline in International Prostate Symptom Score (IPSS) at Week 52
Time Frame: Baseline and Week 52
|
The International Prostate Symptom Score (I-PSS) consists of 7 verified questions concerning urinary symptoms and one quality of life question scored from 0 to 5(0=Not at All, to 5=Almost Always).
The total score can range from 0 to 35.
Score of 1-7=Mild, 8-19=Moderate, 20-35=Severe.
|
Baseline and Week 52
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Percent Change From Baseline in Prostate Volume at Week 52
Time Frame: Baseline and Week 52
|
Prostate volume measurements by transrectal ultrasound (TRUS).
Average prostate volume (55cc).
The Ultrasound scans the prostate in the transverse plane while moving in the cephalocaudal direction of the prostate.
The height and width of the prostate section with the greatest surface area is recorded.
|
Baseline and Week 52
|
Number of Participants With IPSS Improvement From Baseline at Week 52
Time Frame: Baseline and Week 52
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Improvement is defined as greater than or equal to a 2 point increase in participants total score on the I-PSS questionaire.
|
Baseline and Week 52
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Change From Baseline in Maximum Urine Flow Rate (Qmax) at Week 52
Time Frame: Baseline and Week 52
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Maximum Urine Flow Rate (Qmax) is the peak flow in milliliters per second.
|
Baseline and Week 52
|
Number of Participants With Qmax Improvement From Baseline at Week 52
Time Frame: Baseline and Week 52
|
Improvement was defined as an increase in Qmax by greater than or equal to 1 mL/sec
|
Baseline and Week 52
|
Collaborators and Investigators
Sponsor
Publications and helpful links
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Pathologic Processes
- Prostatic Diseases
- Prostatic Hyperplasia
- Hyperplasia
- Physiological Effects of Drugs
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Hormones, Hormone Substitutes, and Hormone Antagonists
- Hormone Antagonists
- Steroid Synthesis Inhibitors
- 5-alpha Reductase Inhibitors
- Dutasteride
Other Study ID Numbers
- ARI105326
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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