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Cancer Of ProstateNCT00923221

Collection of Blood From Patients With Prostate Cancer

An observational study of Cancer Of Prostate and Prostate Cancer, run by National Cancer Institute (NCI) at 1 site in United States.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
Search all trials

Trial summary

Background: It is not fully understood why prostate cancer in some men becomes androgen-independent (no longer responds to anti-androgen medication), but genetics likely plays an important role. Genes contain the hereditary information that is passed down from parents to children. Read more about this study

Who is it for?
Ages 18 years and older, men only
How many people
1,000 participants
Where
1 siteUnited States
Study dates
28 Feb 2007to not given
Phase
Observational
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: Primary clinical

Who may be able to join

  • Individuals 18 years of age and older are eligible.
  • Individuals with a diagnosis of prostate cancer are eligible.

Who cannot join

  • Children are not eligible.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Paula A Carter, R.N. contact

(240) 858-3191

pcartera@mail.nih.gov

William D Figg, Pharm.D. contact

(240) 760-6179

figgw@mail.nih.gov

United States1 site, 1 recruiting
  • National Institutes of Health Clinical Center

    Bethesda, Maryland, 20892

    Recruiting

Other trials in United States

About this study

Background:

  • It is not fully understood why prostate cancer in some men becomes androgen-independent (no longer responds to anti-androgen medication), but genetics likely plays an important role.
  • Genes contain the hereditary information that is passed down from parents to children. Although everyone has the same set of genes, individuals can have different forms of the same gene.
  • Differences in genes may explain, at least in part, why some people develop a more aggressive form of prostate cancer than others.
Read more

Objectives:

-To obtain blood samples from patients with prostate cancer to try to identify gene differences associated with progression to the androgen independent state.

Eligibility:

-All participants participating in NCI prostate cancer protocols.

Design:

  • Participants with prostate cancer are evaluated in the NCI s Medical Oncology Clinic.
  • Blood samples are collected at the initial visit or at follow-up visits.
  • DNA (genetic material) and white blood cells are extracted from these samples to be used for genotyping and establishment of cell lines.
  • Gene variations are correlated with prostate cancer prognosis and prognostic indicators.
Read the detailed description

Objectives:

-To obtain blood samples from patients with prostate cancer for genotyping analyses.

Eligibility:

  • All patients seen in the NCI prostate cancer clinic are eligible.

Design:

  • Patients with a prior diagnosis of prostate cancer will be evaluated in the GMB Clinic, NCI.
  • Blood samples will be collected after the participant signs the protocol consent form. In general, blood will be collected for genomic DNA one time for this study. Extra samples may be requested if the original sample was not enough. The additional sample can range from one to two tubes of blood (approximately 2-3 teaspoons total). Genomic DNA and white blood cells will each be extracted from these samples to be utilized for genotyping and establishment of individual cell lines.
  • Genetic variance will be correlated with prostate cancer prognosis (i.e. time from diagnosis to death) and prognostic indicators (i.e. histological tumor grade).
  • Blood samples for the extraction of cell-free DNA (cfDNA) and cell-free RNA (cfRNA) may be collected at multiple timepoints for future investigations
  • Healthy controls will not be compared and no correlations will be made with prostate cancer susceptibility.
Keywords
Genetic, Prostatic Neoplasms, Genotyping, Venipuncture, Polymorphism, Natural History, Prostate Cancer
Medical subject headings
Prostatic Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT00923221
Study groupRoleWhat they receive
1/Participant samplesBlood samples from participants with diagnosed prostate cancer

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Acquisition and longitudinal analysis of genomic DNA, cfDNA, and cfRNA from participants with prostate cancer

    Acquisition and longitudinal analysis of genomic DNA, cfDNA, and cfRNA from participants with prostate cancer to aid in understanding the mechanisms of prostate carcinogenesis and progression

    Measured: study duration

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted18 Jun 2009 (estimated)
  2. Study start28 Feb 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
1,000 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00923221
Sponsor's protocol ID
070100
Other IDs
07-C-0100
Status last verified
20 Jan 2026
First submitted
17 Jun 2009
Last updated
5 Nov 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: All IPD recorded in the medical record will be shared with intramural investigators upon request. @@@@@@In addition, all large scale genomic sequencing data will be shared with subscribers to dbGaP.

Publications

  • Eisenberger MA, Blumenstein BA, Crawford ED, Miller G, McLeod DG, Loehrer PJ, Wilding G, Sears K, Culkin DJ, Thompson IM Jr, Bueschen AJ, Lowe BA. Bilateral orchiectomy with or without flutamide for metastatic prostate cancer. N Engl J Med. 1998 Oct 8;339(15):1036-42. doi: 10.1056/NEJM199810083391504.

    PubMed 9761805
  • Eisenberger MA, Simon R, O'Dwyer PJ, Wittes RE, Friedman MA. A reevaluation of nonhormonal cytotoxic chemotherapy in the treatment of prostatic carcinoma. J Clin Oncol. 1985 Jun;3(6):827-41. doi: 10.1200/JCO.1985.3.6.827.

    PubMed 2409240
  • Ruijter E, van de Kaa C, Miller G, Ruiter D, Debruyne F, Schalken J. Molecular genetics and epidemiology of prostate carcinoma. Endocr Rev. 1999 Feb;20(1):22-45. doi: 10.1210/edrv.20.1.0356. No abstract available.

    PubMed 10047972

Questions about this trial

What is this clinical trial studying?

An observational study of Cancer Of Prostate and Prostate Cancer, run by National Cancer Institute (NCI) at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 5 Nov 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Paula A Carter, R.N. ((240) 858-3191, pcartera@mail.nih.gov), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Acquisition and longitudinal analysis of genomic DNA, cfDNA, and cfRNA from participants with prostate cancer (time frame: study duration). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00923221, which also lists 3 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Nov 2026.

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