The Evaluation of the Safety of a New Drug for Benign Prostatic Hyperplasia Used for 9 Months

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00224133
Recruitment Status : Completed
First Posted : September 22, 2005
Results First Posted : April 27, 2010
Last Update Posted : April 27, 2010
Information provided by:
Watson Pharmaceuticals

Brief Summary:
A new drug for benign prostatic hyperplasia is used for 9 months to determine its long-term safety.

Condition or disease Intervention/treatment Phase
Benign Prostatic Hyperplasia Drug: Silodosin Phase 3

Detailed Description:

This will be a multi-center, open-label 40 week investigation in up to 1,200 men with signs and symptoms of benign prostatic hyperplasia. The following procedures are utilized: physical exams, electrocardiograms, clinical laboratory tests, vital signs, the International Prostate Symptom Score, maximum urine flow rate, adverse events, concomitant medications, and compliance.

All subjects had previously participated in a 12-week double-blind placebo controlled trial (NCT000224107 or NCT000224120)

Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 661 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Multi-Center, Open-Label Evaluation of the Safety of a New Drug in the Treatment of the Signs and Symptoms of Benign Prostatic Hyperplasia
Study Start Date : September 2005
Actual Primary Completion Date : April 2007
Actual Study Completion Date : April 2007

Resource links provided by the National Library of Medicine

Drug Information available for: Silodosin
U.S. FDA Resources

Arm Intervention/treatment
Experimental: Silodosin
Silodosin 8 mg per day with food
Drug: Silodosin
8 mg daily
Other Name: Rapaflo

Primary Outcome Measures :
  1. Adverse Events [ Time Frame: 9 months ]
    All reported adverse events were recorded. Clinically significant abnormal laboratory values or other clinical findings upon examination were also recorded as adverse events.

Secondary Outcome Measures :
  1. International Prostate Symptom Score (IPSS) [ Time Frame: 9 months ]
    The IPSS is a symptom severity scale from 0 to 35 that is derived from a 7 item questionnaire. 0 indicates no symptoms and 35 indicates most severe symptoms.

Information from the National Library of Medicine

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Ages Eligible for Study:   50 Years and older   (Adult, Senior)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Males in good general health and at least 50 years of age, who have completed SI04009 or SI04010.

Exclusion Criteria:

  • Medical conditions that would confound the efficacy evaluation.
  • Medical conditions in which it would be unsafe to use an alpha-blocker.
  • The use of concomitant drugs that would confound the efficacy evaluation.
  • The use of concomitant drugs that would be unsafe with this alpha-blocker.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00224133

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United States, Alabama
Birmingham, Alabama, United States
Huntsville, Alabama, United States
United States, Arizona
Tucson, Arizona, United States
United States, California
Anaheim, California, United States
Carmichael, California, United States
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Overland Park, Kansas, United States
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Greenbelt, Maryland, United States
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Boston, Massachusetts, United States
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St. Joseph, Michigan, United States
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Edina, Minnesota, United States
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Jackson, Mississippi, United States
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Kansas City, Missouri, United States
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Las Vegas, Nevada, United States
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Lawrenceville, New Jersey, United States
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Portland, Oregon, United States
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Lancaster, Pennsylvania, United States
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Providence, Rhode Island, United States
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Greer, South Carolina, United States
Mt. Pleasant, South Carolina, United States
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Austin, Texas, United States
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Salt Lake City, Utah, United States
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Norfolk, Virginia, United States
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Lakewood, Washington, United States
Seattle, Washington, United States
Tacoma, Washington, United States
United States, Wisconsin
Madison, Wisconsin, United States
Milwaukee, Wisconsin, United States
Sponsors and Collaborators
Watson Pharmaceuticals
Study Director: Lawrence Hill, Pharm D, RPh Watson Pharmaceuticals

Additional Information:
Publications of Results:
Responsible Party: Gary Hoel, RPh, PhD, Executive Director of Clinical Research, Watson Laboratories, Inc. Identifier: NCT00224133     History of Changes
Other Study ID Numbers: SI04011
First Posted: September 22, 2005    Key Record Dates
Results First Posted: April 27, 2010
Last Update Posted: April 27, 2010
Last Verified: April 2010

Keywords provided by Watson Pharmaceuticals:
benign prostatic hyperplasia, alpha blocker

Additional relevant MeSH terms:
Prostatic Hyperplasia
Pathologic Processes
Prostatic Diseases
Genital Diseases, Male
Adrenergic alpha-1 Receptor Antagonists
Adrenergic alpha-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Urological Agents