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Completed Phase 3 Interventional Results available

A Phase III Trial of ZD4054 (Zibotentan) (Endothelin A Antagonist) in Hormone Resistant Prostate Cancer With Bone Metastases

ClinicalTrials.gov ID: NCT00554229

Public ClinicalTrials.gov record NCT00554229. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Jul 21, 2026, 4:48 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase III Trial to Test the Efficacy of ZD4054(Zibotentan), an Endothelin A Receptor Antagonist, Versus Placebo in Patients With Hormone Resistant Prostate Cancer (HRPC) and Bone Metastasis Who Are Pain Free and Mildly Symptomatic.

Study identification

NCT ID
NCT00554229
Recruitment status
Completed
Study type
Interventional
Phase
Phase 3
Lead sponsor
AstraZeneca
Industry
Enrollment
896 participants

Conditions and interventions

Interventions

  • ZD4054 Drug
  • Placebo Drug

Drug

Eligibility (public fields only)

Age range
18 Years and older
Sex
Male
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Oct 31, 2007
Primary completion
Jun 30, 2010
Completion
Jul 31, 2011
Last update posted
Feb 7, 2016

2007 – 2011

United States locations

U.S. sites
19
U.S. states
15
U.S. cities
19
Facility City State ZIP Site status
Research Site Tucson Arizona
Research Site Greenbrae California
Research Site Los Angeles California
Research Site Palm Springs California
Research Site San Mateo California
Research Site Norwich Connecticut
Research Site Washington D.C. District of Columbia
Research Site Gainsville Florida
Research Site Port St.Lucie Florida
Research Site Des Moines Iowa
Research Site Canton Ohio
Research Site Pittsburgh Pennsylvania
Research Site Nashville Tennessee
Research Site Salt Lake City Utah
Research Site Burlington Vermont
Research Site Norfolk Virginia
Research Site Seattle Washington
Research Site Wheeling West Virginia
Research Site Milwaukee Wisconsin

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 178 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT00554229, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 7, 2016 · Synced Jul 21, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00554229 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →