Dutasteride (GI198745) In Benign Prostatic Hyperplasia Subjects

NCT ID: NCT00368979

Last Updated: 2018-09-26

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 378 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2006-02-17
• Study Completion Date: 2007-12-06

Brief Summary

This study will assess the efficacy and safety of GI198745 0.5mg given once daily for 52 weeks to Benign Prostatic Hyperplasia (BPH) patients.

Conditions

Prostatic Hyperplasia

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: TREATMENT
• Blinding Strategy: DOUBLE

Study Groups

Dutasteride

Group Type: ACTIVE_COMPARATOR

Dutasteride

Intervention Type: DRUG

once daily

Placebo

Group Type: PLACEBO_COMPARATOR

Placebo

Intervention Type: DRUG

once daily

Interventions

Dutasteride

once daily

Intervention Type: DRUG

Placebo

once daily

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

Only subjects who meet all the following criteria during the screening phase will be enrolled in the study.

1. Diagnosis: BPH

2. Age: ≥50 years

3. Gender: Male

4. Estimated prostate volume ≥30cc (by TRUS)

5. I-PSS Symptom Score (total of 7 items) ≥8 points

6. Maximum flow rate (Qmax) ≤15mL/sec (voided volume measured simultaneously ≤150mL)*[1]

7. 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.

8. Outpatients

9. 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.

1. Post void residual volume >250mL (by suprapubic ultrasound).

2. History of AUR within the previous 12 weeks.

3. Evidence or history of prostate cancer.

4. 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].

5. Previous surgery (including balloon dilatation, thermotherapy and stent placement) or minimally invasive techniques for BPH.

6. 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).

7. 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.

8. Liver function tests (AST, ALT, AL-P) >2 times the upper limit of normal.

9. Serum cleatinine >1.8mg/dL.

10. Use of any antiandrogen (e.g., chlormadinone acetate, allylesterenol) for BPH within the previous 12 months.

11. 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).

• Minimum Eligible Age: 50 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: No

Sponsors

GlaxoSmithKline

INDUSTRY

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Principal Investigators

GSK Clinical Trials

Role: STUDY_DIRECTOR

GlaxoSmithKline

Locations

GSK Investigational Site

Chiba, , Japan

GSK Investigational Site

Chiba, , Japan

GSK Investigational Site

Chiba, , Japan

GSK Investigational Site

Fukuoka, , Japan

GSK Investigational Site

Fukuoka, , Japan

GSK Investigational Site

Fukuoka, , Japan

GSK Investigational Site

Hyōgo, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kanagawa, , Japan

GSK Investigational Site

Kyoto, , Japan

GSK Investigational Site

Osaka, , Japan

GSK Investigational Site

Osaka, , Japan

GSK Investigational Site

Osaka, , Japan

GSK Investigational Site

Ōita, , Japan

GSK Investigational Site

Ōita, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

GSK Investigational Site

Tokyo, , Japan

Countries

Japan

References

Tsukamoto T, Endo Y, Narita M. Efficacy and safety of dutasteride in Japanese men with benign prostatic hyperplasia. Int J Urol. 2009 Sep;16(9):745-50. doi: 10.1111/j.1442-2042.2009.02357.x. Epub 2009 Aug 5.

Reference Type: BACKGROUND

PMID: 19674165 (View on PubMed)

Other Identifiers

ARI105326

Identifier Type: -

Identifier Source: org_study_id