Study of Blood and Tissue Samples From Patients Receiving Androgen Deprivation for Newly Diagnosed Prostate Cancer

NCT ID: NCT00967954

Last Updated: 2014-01-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2008-09-30

Brief Summary

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RATIONALE: Studying samples of blood and tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors predict how patients will respond to treatment.

PURPOSE: This research study is looking at blood and tissue samples from patients with prostate cancer receiving androgen deprivation therapy.

Detailed Description

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OBJECTIVES:

* To identify the molecular and pathophysiological changes which occur during the early stages of androgen deprivation (AD) and during emerging castration-resistant prostate cancer.
* To test functional imaging as a non-invasive tool to measure treatment response and validate this using biological endpoints.
* To develop clinical models to predict how tumors will respond to AD and identify new targets once AD fails.

OUTLINE:

* Group A: Patients likely to receive androgen deprivation (AD) as first-line therapy undergo blood and prostate biopsy sample collection before and after treatment on days 0 and 14 or 90. Patients receive an androgen receptor inhibitor followed by maintenance with a gonadotropin-releasing hormone analogue beginning on day 0. Patients also undergo diffusion-weighted MRI, MR spectroscopic imagining, quantitative T1W mapping, and T1W perfusion sequence.
* Group B: Patients already receiving AD undergo blood and prostate biopsy sample collection within 4 weeks of diagnosis of castration-resistant prostate cancer and before initiating any second-line therapy.

Blood and tissue samples are assessed via DNA and RNA genetic analysis, gene expression studies, and comparative genomic hybridization to identify novel markers of androgen response and resistance.

Peer Reviewed and Funded or Endorsed by Cancer Research UK.

Conditions

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Prostate Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Primary Study Purpose

TREATMENT

Interventions

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antiandrogen therapy

Intervention Type DRUG

releasing hormone agonist therapy

Intervention Type DRUG

DNA analysis

Intervention Type GENETIC

RNA analysis

Intervention Type GENETIC

comparative genomic hybridization

Intervention Type GENETIC

gene expression analysis

Intervention Type GENETIC

laboratory biomarker analysis

Intervention Type OTHER

diffusion-weighted magnetic resonance imaging

Intervention Type PROCEDURE

magnetic resonance spectroscopic imaging

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

DISEASE CHARACTERISTICS:

* Meets 1 of the following criteria:

* High clinical suspicion of prostate cancer, based on an abnormal digital rectal examination and PSA (\> 20 ng/mL)
* Newly diagnosed, castration-resistant prostate cancer

* Clinical stage ≥ T2c disease
* Significant tumor volume on initial diagnostic biopsy (\> 50% of cores)
* Likely to receive androgen deprivation therapy for prostate cancer

PATIENT CHARACTERISTICS:

* No contraindication to transrectal needle biopsy
* No contraindication to MRI or prostate needle biopsy

PRIOR CONCURRENT THERAPY:

* See Disease Characteristics
Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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Cancer Research UK

OTHER

Sponsor Role lead

Principal Investigators

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Vincent Gnanapragasam, MD

Role: PRINCIPAL_INVESTIGATOR

Cancer Research UK

Locations

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Cancer Research UK at Cambridge Research Institute

Cambridge, England, United Kingdom

Site Status RECRUITING

Countries

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United Kingdom

Facility Contacts

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Vincent Gnanapragasam, MD

Role: primary

44-1223-348-363

Other Identifiers

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CRUK-CHIRRP

Identifier Type: -

Identifier Source: secondary_id

EU-20920

Identifier Type: -

Identifier Source: secondary_id

CDR0000639017

Identifier Type: -

Identifier Source: org_study_id

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