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DNA Changes in Patients With Prostate Cancer

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: NCT00899184
Recruitment Status : Completed
First Posted : May 12, 2009
Last Update Posted : May 19, 2017
National Cancer Institute (NCI)
Information provided by (Responsible Party):
Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group )

Brief Summary:

RATIONALE: Collecting and storing samples of blood from patients and their brothers with cancer to study in the laboratory may help doctors learn more about changes that may occur in DNA and identify biomarkers related to cancer.

PURPOSE: This laboratory study is looking at changes in DNA in patients and their brothers with prostate cancer.

Condition or disease Intervention/treatment
Prostate Cancer Genetic: polymorphism analysis Other: laboratory biomarker analysis

Detailed Description:


  • Determine the frequency of single nucleotide polymorphism (SNP) genotypes in patients with prostate cancer, their affected siblings, and an unaffected healthy population (control).
  • Determine the age of onset of prostate cancer in affected probands and affected siblings.
  • Determine the penetrance or likelihood that given SNPs will result in disease in affected siblings based upon Mendelian genetics.
  • Determine the odds ratio of developing prostate cancer in the presence of SNPs.
  • Determine SNP genotypes in patients enrolled on ECOG-E3805, a prostate phase III study enrolling men with D2 prostate cancer treated with androgen-ablation therapy alone or androgen-ablation therapy with chemotherapy, and correlate them with disease progression (i.e., androgen independence).

OUTLINE: This is an open-label, multicenter study. Patients are stratified according to ethnicity, age at diagnosis, and Gleason score.

Patients, their affected siblings, and healthy participants (controls) undergo collection of blood samples. Genomic DNA is extracted from whole blood and sequenced for single nucleotide polymorphisms (SNPs) in Akt and mdm-2 genes. SNP data is correlated with clinical and biographical data.

PROJECTED ACCRUAL: A total of 500 patients (250 probands and 250 siblings) and 146 healthy participants (controls) will be accrued for this study.

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Study Type : Observational
Actual Enrollment : 646 participants
Observational Model: Other
Time Perspective: Retrospective
Official Title: Assessment of SNP Genotypes in Men With Prostate Cancer
Actual Study Start Date : May 23, 2006
Actual Primary Completion Date : May 30, 2007
Actual Study Completion Date : May 30, 2007

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Prostate Cancer

Primary Outcome Measures :
  1. Frequency of single nucleotide polymorphism (SNP) genotypes [ Time Frame: 1 month ]
  2. Age of onset of prostate cancer in patients and their affected siblings [ Time Frame: 1 month ]

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 120 Years   (Adult, Older Adult)
Sexes Eligible for Study:   Male
Accepts Healthy Volunteers:   Yes


  • Meets one of the following criteria:

    • Patient or sibling diagnosed with prostate cancer
    • Cancer-free participant (healthy control)
  • Whole blood sample available


  • Not specified


  • Not specified

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): NCT00899184

Sponsors and Collaborators
ECOG-ACRIN Cancer Research Group
National Cancer Institute (NCI)
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Study Chair: Kim M. Hirshfield, MD, PhD Rutgers Cancer Institute of New Jersey
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Responsible Party: ECOG-ACRIN Cancer Research Group Identifier: NCT00899184    
Other Study ID Numbers: CDR0000492784
First Posted: May 12, 2009    Key Record Dates
Last Update Posted: May 19, 2017
Last Verified: May 2017
Keywords provided by Eastern Cooperative Oncology Group ( ECOG-ACRIN Cancer Research Group ):
recurrent prostate cancer
stage IV prostate cancer
stage I prostate cancer
stage IIB prostate cancer
stage IIA prostate cancer
stage III prostate cancer
Additional relevant MeSH terms:
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Prostatic Neoplasms
Genital Neoplasms, Male
Urogenital Neoplasms
Neoplasms by Site
Prostatic Diseases