Benign Prostatic Hyperplasia Clinical Trial
Official title:
Dutasteride (0.5mg) Once Daily for One Year and Tamsulosin (0.4mg) Once Daily for 3 Months, Followed by Counseling on Flex Dose Tamsulosin as Needed on Improvement of Symptoms and Outcome in Men With Moderate to Severe Symptomatic BPH
Verified date | November 2018 |
Source | Siami, Paul F., M.D. |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
This study will investigate the efficacy and safety of treatment with Dutasteride (0.5mg), administered once daily for one year in combination with Tamsulosin (0.4mg), administered once daily for 3 months, followed by counseling on flexible dosing of Tamsulosin on an as needed basis, on the improvement of symptoms and clinical outcome in men with moderate to severe symptomatic benign prostatic hyperplasia (BPH). At each scheduled visit (3, 6, and 9 months), the subject will be counseled on withdrawal of Tamsulosin. After randomization, study visits are every 13 weeks for up to 52 Weeks. (Including Screening, (up to 7 clinic visits)
Status | Completed |
Enrollment | 63 |
Est. completion date | July 2009 |
Est. primary completion date | July 2009 |
Accepts healthy volunteers | No |
Gender | Male |
Age group | 50 Years and older |
Eligibility |
Inclusion Criteria: 1. Male =50 yrs 2. Diagnosed BPH by medical history and physical examination, including a digital rectal examination 3. International Prostate Symptom Score =12 points at Screening 4. Prostate volume =30cc (by transrectal ultrasonography; TRUS) 5. Total serum Prostate Specific Antigen =1.5 ng/mL at Screening 6. Maximum flow rate =5 mL/sec and =15 mL/sec and minimum voided volume of =125 mL at Screening (based on two voids) 7. Able to give written informed consent and comply with study procedures 8. Literate in English language with the ability to read, comprehend, and record information on the IPSS, BII, and PPSM questionnaires 9. Able to swallow and retain oral medication 10. Able to participate for study duration Exclusion Criteria: 1. Total serum PSA >10.0 ng/mL at Screening. Patients with total serum PSA >10.0 ng/mL may be acceptable for inclusion if the PSA elevation is thought to be due to BPH and not prostate cancer (by TRUS and biopsies showing no evidence of prostate cancer). 2. History or evidence of prostate cancer 3. Previous prostatic surgery or other invasive procedures to treat BPH 4. History of flexible/rigid cystoscopy or other instrumentation of the urethra within 7 days prior to Screening. Catheterization (<10F) is acceptable with no time restriction. 5. History of AUR within 3 months prior to Screening 6. Post-void residual volume >250mL (suprapubic ultrasound) at Screening 7. Any causes other than BPH, which may in the judgment of the investigator, result in urinary symptoms or changes in flow rate 8. History of breast cancer or clinical breast examination finding of unclear origin or suggestive of malignancy 9. Use of 5 alpha-reductase inhibitor, any drugs with antiandrogenic properties, or drugs noted for gynecomastia effects, within past 6 months and throughout the study. Previous use of AVODART within 12 months of the baseline or historical TRUS. Chronic use of Metronidazole is prohibited. 10. Concurrent use of anabolic steroids 11. Use of phytotherapy for BPH within 2 weeks of Screening 12. Use of any alpha-adrenoreceptor blockers within 2 weeks of Screening 13. Use of any alpha-adrenoreceptor agonists, anticholinergics or cholinergics within 48 hours prior to all uroflowmetry assessments. 14. Hypersensitivity to any alpha-/beta- adrenoreceptor blocker or 5-alpha-reductase inhibitor, or other chemically-related drugs. 15. Concurrent use of drugs known or thought to interaction with Tamsulosin. 16. History of hepatic impairment, abnormal liver function at Screening, History of renal insufficiency, serum creatinine >1.5 times the upper limit 18. history of malignancies other than basal cell carcinoma or squamous cell carcinoma of the skin within the past 2 years. 19. History of any illness the investigator might confound the results of the study or poses additional risk to the patient. 20. Any unstable, serious co-existing medical condition(s) 21. History of postural hypotension, dizziness, vertigo, or any other signs and symptoms of orthostasis. 22. History of 'first dose' hypotensive episode on initiation of alpha-l-adrenoreceptor antagonist therapy. 23. History of unsuccessful treatment with finasteride or Dutasteride 24. History or current drug or alcohol abuse within the previous 12 months. 25. Participation in any investigational or marketed drug trial within 30 days (or 5 half-lives whichever is the longer) preceding Screening and/or during the course of this study. |
Country | Name | City | State |
---|---|---|---|
United States | Research Institute of Deaconess Clinic | Evansville | Indiana |
Lead Sponsor | Collaborator |
---|---|
Siami, Paul F., M.D. | GlaxoSmithKline |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | International Prostate Symptom Score | Reported mean total IPSS values from end of study (12 month visit) to assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior symptomatic improvement to BPH patients. Questionnaire consisting of seven symptom scores: incomplete emptying, frequency, intermittency, urgency, weak stream, straining, and nocturia. Symptoms are scored on a 5 point scale with 0 representing absence of symptoms and 5 representing the most severe presentation of a symptom. Total range is from 0-35. The scores are evaluated as such: 0-7: Mild 8-19: Moderate 20-35: Severe |
12 months | |
Primary | Peak Flow Rate (QMax) | Peak flow rate recorded at final study visit (12 month) to assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior symptomatic improvement to BPH patients. | 12 months | |
Primary | Benign Prostate Hyperplasia Impact Index | Benign prostate hyperplasia Impact Index obtained at final study visit (12 month) to assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior symptomatic improvement to BPH patients. Benign Prostatic Hyperplasia Impact Index asked the following: Over the past month, how much physical discomfort did any urinary problems cause you? (0-3) Over the past month, how much did you worry about yoru health because of any urinary problems? (0-3) Overall, how bothersome has any trouble with urination been during the past month? (0-3) Over the past month, how much of the time has any urinary problem kept you from doing the kinds of things you usually do? (0-4) 0 indicates no symptoms, high values indicate high frequency of symptoms. Total symptom score range 0-13. |
12 months | |
Primary | Post-void Residual Volume | Post-void residual volume taken at final study visit (12 month) to assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior symptomatic improvement to BPH patients. | 12 months | |
Primary | Prostate Specific Antigen | Prostate Specific Antigen (PSA) taken at final study visit (12 month) to assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior symptomatic improvement to BPH patients. | 12 months | |
Secondary | Health Outcome Measures | Number of participants who are able to subsequently reduce or discontinue Tamsulosin usage after starting with combination therapy with Dutasteride and Tamsulosin while still maintaining the same degree of improvement in lower urinary tract symptoms | 13 months | |
Secondary | Safety and Tolerability | To assess safety and tolerability of starting with combination therapy with Dutasteride and Tamsulosin and subsequent elimination of Tamsulosin. Evaluating number of reported adverse events designated as possibly or probably study-drug related. | 13 months | |
Secondary | Economic Impact | Annual financial cost per participant starting with combination therapy with Dutasteride and Tamsulosin with subsequent withdrawal of Tamsulosin. | 13 months | |
Secondary | Number of Participants With a Reduction of AUR and BPH-related Surgery | To assess efficacy of starting with combination treatment with Dutasteride for one year and Tamsulosin for 3 months with subsequent as needed use of Tamsulosin in providing superior improvement in the clinical outcomes of AUR or BPH-related prostatic surgery to BPH patients. | 13 months |
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