Evaluation Of The Efficacy And Safety Of The Doxasozin Gastrointestinal Therapeutic System (GITS) In Patients With Prostate Enlargement

January 26, 2021 updated by: Pfizer's Upjohn has merged with Mylan to form Viatris Inc.

A Prospective, Open-Labeled Trial of the Safety and Efficacy of Doxazosin GITS in Patients With Benign Prostate Hyperplasia

The primary objectives were to determine the efficacy and safety of the GITS formulation of Doxazosin in Taiwanese patients with prostate enlargement.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Actual)

80

Phase

  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Taiwan
      • Kaohsiung, Taiwan, 813
        • Pfizer Investigational Site
      • Taichung, Taiwan
        • Pfizer Investigational Site
      • Taipei, Taiwan
        • Pfizer Investigational Site
      • Taoyuan, Taiwan
        • Pfizer Investigational Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Taiwanese male subjects between 50 and 80 years of age who had: a primary diagnosis of BPH, defined as having an enlarged prostate (confirmed by digital rectal examination [DRE] and/or B-mode ultrasound); an IPSS score of ≥12; and a Qmax in the range of 5 to 15 mL/sec in a total voided volume of ≥150 mL, were eligible for the study.

Exclusion criteria include but not limited to:

  • Previous prostate surgery, presence of a prostate stent or microwave thermotherapy and/or balloon dilatation within the previous 6 months
  • Concomitant therapy or previous therapy within 14 days with agents known to affect bladder or urethral function.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: A
Drug: Doxazosin mysylate GITS
Subjects initiated on 4 mg doxazosin GITS once daily at Visit 1 for four weeks. At Visit 2 (Week 4) increased to 8 mg Doxazosin GITS if efficacy response criteria not met.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in the maximum urinary flow rate (Qmax) from baseline
Time Frame: 8 weeks
8 weeks
Change in the International Prostate Symptom Score (IPSS) total score from baseline
Time Frame: 8 weeks
8 weeks

Secondary Outcome Measures

Outcome Measure
Time Frame
Change in the International Prostate Symptom Score (IPSS) total score from baseline
Time Frame: 4 weeks
4 weeks
Change in the maximum urinary flow rate (Qmax) from baseline
Time Frame: 4 weeks
4 weeks
Change in the quality of life (QoL) assessment index score from baseline
Time Frame: 8 weeks
8 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Pfizer's Upjohn has merged with Mylan to form Viatris Inc.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2003

Study Completion (Actual)

January 1, 2005

Study Registration Dates

First Submitted

March 27, 2008

First Submitted That Met QC Criteria

March 27, 2008

First Posted (Estimate)

April 1, 2008

Study Record Updates

Last Update Posted (Actual)

January 29, 2021

Last Update Submitted That Met QC Criteria

January 26, 2021

Last Verified

January 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • A0351063

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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