Identification of Prostate Cancer Genes
Public ClinicalTrials.gov record NCT00342784. 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.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Genetic Analysis of Cases, Controls, and Families With Prostate Cancer
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This study will identify genes that predispose men to prostate cancer and affect the rate and type of disease spread, the aggressiveness of the disease, and the long-term outcome. Several studies show there is a genetic component to prostate cancer susceptibility, and that a first-degree relative with prostate cancer increases a man's risk 2- to 3-fold compared to those without a family history. The risk is significantly higher if the relative was diagnosed at younger than 65 years of age, or if three or more first-degree relatives are affected. The study will try to locate prostate cancer genes in DNA samples using two methods: linkage analysis and association studies. Traditionally, the search for a disease gene begins with linkage analysis, in which the aim is to find the rough location of the gene relative to another DNA sequence, called a "genetic marker," whose position is already known. In genetic association studies, genes from a large number of patients are compared with healthy controls who are matched by age, race, and geographic region. DNA samples for this study come from patients in the two following studies at the Fred Hutchinson Cancer Research Center, Seattle, Washington: Family study: Participants are families with prostate cancer who have: 1) three or more first-degree relatives with prostate cancer; 2) three generations with prostrate cancer either through the maternal or paternal side of the family; or 3) two first-degree relatives with prostate cancer diagnosed before age 65 or who were African American. Population-based study: Participants are patients with prostate cancer and matched healthy control subjects. The identification of prostate cancer genes important in susceptibility to the disease and its aggressiveness may permit earlier detection and development of more directed and effective treatments based on underlying genetics.
Study identification
- NCT ID
- NCT00342784
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 5,118 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years to 100 Years
- Sex
- All
- 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
- Nov 7, 2004
- Primary completion
- Not listed
- Completion
- Jul 29, 2018
- Last update posted
- Jul 31, 2018
2004 – 2018
United States locations
- U.S. sites
- 1
- U.S. states
- 1
- U.S. cities
- 1
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| National Human Genome Research Institute (NHGRI), 9000 Rockville Pike | Bethesda | Maryland | 20892 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
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About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00342784, 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 Jul 31, 2018 · Synced Sep 6, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00342784 live on ClinicalTrials.gov.