AzTrials
AzTrials

Prostate CancerNCT01275651

Biomarkers in Bone Marrow and Blood Samples From Patients With Prostate Cancer Treated With Ketoconazole

An observational study of Prostate Cancer, run by Alliance for Clinical Trials in Oncology at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
Search all trials

Trial summary

This research trial studies biomarkers in bone marrow and blood samples from patients with prostate cancer treated with ketoconazole. Studying samples of bone marrow and blood from patients with prostate cancer in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and… Read more about this study

Who is it for?
Any age, men only
Conditions the study is for
Prostate Cancer
What is being tested?
laboratory biomarker analysis
How many people
0 participants
Where
1 siteUnited States
Study dates
Dec 2010to Aug 2015
Phase
Observational
Are there results?
None posted in the registry

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 Any age
  • Men only
  • No healthy volunteers
  • Child, Adult, Older adult

Study population: Patients with prostate cancer registered to Cancer and Leukemia Group B (CALGB) 9583 and CALGB 9663

Inclusioin Criteria:

  • Patients must have been registered to CALGB 9583 and CALGB 9663
  • Adequate tissue specimen available for analysis

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Alliance for Clinical Trials in Oncology

    Boston, Massachusetts, 02115

Other trials in United States

About this study

Official title: Androgen Receptor (AR) Activity in Castration-Resistant Prostate Cancer (CRPC) and Response to Ketoconazole

This research trial studies biomarkers in bone marrow and blood samples from patients with prostate cancer treated with ketoconazole. Studying samples of bone marrow and blood from patients with prostate cancer in the laboratory may help doctors learn more about changes that occur in deoxyribonucleic acid (DNA) and identify biomarkers related to cancer.

Read the detailed description

PRIMARY OBJECTIVES:

  1. To determine whether pre-treatment androgen receptor (AR) activity correlates with progression-free survival (PFS) of men with castration-resistant prostate cancer (CRPC) treated with ketoconazole.

SECONDARY OBJECTIVES:

  1. To determine if expression of androgen transport/synthesis/metabolism genes (including cytochrome P450, family 17, subfamily A, polypeptide 1 [CYP17A1], aldo-keto reductase family 1 [AKR1]C3, hydroxy-delta-5-steroid dehydrogenase, 3 beta- and steroid delta-isomerase 2 [HSD3B2], hydroxysteroid [17-beta] dehydrogenase [HSD17B]3, HSD17B6, AKR1C2, AKR1C1, UGTB15, UGTB17, steroid-5-alpha-reductase, alpha polypeptide 1 [3-oxo-5 alpha-steroid delta 4-dehydrogenase alpha] [SRD5A]1, SRD5A2, SRD5A3, and solute carrier organic anion transporter family, member 2B1 [SLCO2B1]) correlate with detected AR activity, time to progression (progression free survival [PFS]) following treatment with ketoconazole, and overall survival.

II. To determine if semi-quantitative immunohistochemical analysis of AR and AKR1C3 protein levels correlate with PFS following treatment with ketoconazole.

III. To determine if specific AR splice variations correlate with PFS in response to ketoconazole.

IV. To determine if detected activity of signaling pathways that interact with AR pathway activity (e.g., phosphatidylinositol-4,5-bisphosphate 3-kinase, catalytic subunit alpha [PI3K] and downstream effectors, SRC proto-oncogene, non-receptor tyrosine kinase [SRC], others) correlate with detected AR activity, PFS, and OS.

  1. To determine if AR gene amplification correlates with detected AR activity and PFS on ketoconazole.

VI. To determine if levels of testosterone and dihydrotestosterone (DHT) from tumor tissue correlate with AR activity and PFS on ketoconazole.

VII. To determine the presence of specific prostate cancer-associated gene translocations in each sample of CRPC.

VIII. To provide an unbiased data set of gene expression in CRPC that will markedly expand the currently available public domain data.

IX. To provide a library of amplified ribonucleic acid (RNA) and complementary (c)DNA for further analysis by other investigators.

OUTLINE:

Previously collected bone marrow, tissue, and blood samples are analyzed for AR activity, AR splice variations, expression of androgen transport/synthesis/metabolism genes, AKR1C3 protein levels, and testosterone and dihydrotestosterone levels via reverse transcription (RT)-polymerase chain reaction (PCR), single nucleotide polymorphisms (SNP) microarrays, immunohistochemistry (IHC), gene expression analysis, and mass spectrometry methods.

Conditions
Prostate Cancer
Being tested
laboratory biomarker analysis
Keywords
adenocarcinoma of the prostate, recurrent 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.

  • laboratory biomarker analysisOther

    Correlative studies

Study groups in NCT01275651
Study groupRoleWhat they receive
Ancillary-Correlative (AR activity in CRPC)Previously collected bone marrow tissue and blood samples are analyzed for AR activity, AR splice variations, expression of androgen transport/synthesis/metabolism genes, AKR1C3 protein levels, and testosterone and dihydrotestosterone levels via RT-PCR, SNP microarrays, IHC, gene expression analysis, and mass spectrometry methods.
Receives: Other: laboratory biomarker analysis

What is being measured

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

  1. Progression-free survival (PFS)

    Measured: Baseline

Secondary outcomes (2)
  1. Equal to or greater than 30% decline in PSA

    Measured: Baseline

  2. Overall survival

    Measured: Baseline

Timeline

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

  1. First posted12 Jan 2011 (estimated)
  2. Study startDec 2010
  3. Primary completionAug 2015
  4. Study completionAug 2015

Why it stopped: Trial closure for NCI NCTN Transition

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
Case only
Time perspective
Retrospective
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01275651
Sponsor's protocol ID
CALGB-151004
Other IDs
CDR0000688286, NCI-2011-02835
Status last verified
Jan 2019
First submitted
11 Jan 2011
Last updated
24 Jan 2019
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Prostate Cancer, run by Alliance for Clinical Trials in Oncology at 1 site in United States.

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

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 24 Jan 2019. 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?

The study was withdrawn before enrolling participants, so there are no results.

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

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Progression-free survival (PFS) (time frame: Baseline). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 24 Jan 2019.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in