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Stage III Prostate AdenocarcinomaNCT02597894

Targeted Biopsies in Determining Response in Patients With Prostate Cancer Undergoing High-Dose-Rate Brachytherapy

A study testing Biopsy of Prostate and Laboratory Biomarker Analysis in people with Stage III Prostate Adenocarcinoma, run by Jonsson Comprehensive Cancer Center at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

This pilot clinical trial studies targeted biopsies in determining response in patients with prostate cancer undergoing high-dose-rate brachytherapy (a type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor). Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Stage III Prostate Adenocarcinoma
What is being tested?
Biopsy of Prostate and Laboratory Biomarker Analysis
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
0 participants
Where
1 siteUnited States
Study dates
1 Mar 2018to 1 Mar 2020
Phase
Interventional
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 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Histologically confirmed primary adenocarcinoma of the prostate
  • National Comprehensive Cancer Network (NCCN) high risk disease (cT3 or Gleason score 8-10 or prostate specific antigen [PSA] > 20)
  • Not currently on ADT
  • Magnetic resonance imaging (MRI) or transrectal doppler ultrasound demonstrating at least one target lesion
  • Karnofsky performance status (KPS) >= 70 or Eastern Cooperative Oncology Group (ECOG) = 2
  • Understands the trial and procedure and is willing and able to sign the informed consent form

Who cannot join

  • Patient is unable to receive high dose rate prostate brachytherapy
  • Patient is unable to have a MRI or transrectal ultrasound
  • Refusal to sign the informed consent
  • Patients who are participating in a concurrent treatment protocol

Trial locations and contacts

1 site in 1 country.

United States1 site
  • UCLA / Jonsson Comprehensive Cancer Center

    Los Angeles, California, 90095

Other trials in United States

About this study

Official title: Feasibility of Repeat Targeted Biopsies in Patients Undergoing High-Dose-Rate Prostate Brachytherapy

This pilot clinical trial studies targeted biopsies in determining response in patients with prostate cancer undergoing high-dose-rate brachytherapy (a type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor). Studying tumor tissue obtained before and after treatment may help doctors understand changes in a pathway that looks at how deoxyribonucleic acid (DNA) is repaired after it is damaged and to see if there are differences in the prostate tissue prior to and after starting androgen deprivation therapy.

Read the detailed description

PRIMARY OBJECTIVES:

  1. Demonstrate feasibility of obtaining adequate tumor tissue from an intra-prostatic index lesion prior to the start of androgen deprivation therapy (ADT) and again at the time of high-dose-rate (HDR) brachytherapy.

SECONDARY OBJECTIVES:

  1. Use immunohistochemistry to stain cells pre-ADT and post 2 months of ADT for markers of non-homologous end joining and DNA double strand breaks using the following markers: Ku70, Ku80, DNA-dependent protein kinase catalytic subunits (PKCs), gamma-histone family, member X (H2AX).

OUTLINE:

Patients undergo biopsy at baseline before start of ADT and during brachytherapy.

Being tested
Biopsy of Prostate, Laboratory Biomarker Analysis

What participants receive

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

  • Biopsy of ProstateProcedure or surgery

    Also called Prostate Biopsy, Prostatic Biopsy

    Undergo biopsy

  • Laboratory Biomarker AnalysisOther

    Correlative studies

Study groups in NCT02597894
Study groupRoleWhat they receive
Prostate biopsyOtherPatients undergo two biopsies, the first at baseline before start of ADT and the second two months later during brachytherapy.
Receives: Procedure: Biopsy of Prostate; Other: Laboratory Biomarker Analysis

What is being measured

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

  1. Changes in DNA damage repair pathways

    The prostate biopsy sample at baseline and at the time of brachytherapy (approximately two months later) will be examined to determine if prostate cancer is in the core and if at least 20% of the core has prostate cancer in it.

    Measured: Two months

Timeline

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

  1. First posted5 Nov 2015 (estimated)
  2. Study start1 Mar 2018 (estimated)
  3. Primary completion1 Mar 2019 (estimated)
  4. Study completion1 Mar 2020 (estimated)

Why it stopped: P. I. left the Institution. Study never opened

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Diagnosis
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02597894
Sponsor's protocol ID
15-000360
Other IDs
NCI-2015-01737, JCCCID562, 15-000360
Status last verified
Apr 2017
First submitted
2 Nov 2015
Last updated
24 Jul 2020
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A study testing Biopsy of Prostate and Laboratory Biomarker Analysis in people with Stage III Prostate Adenocarcinoma, run by Jonsson Comprehensive Cancer Center 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 6 inclusion and 4 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: withdrawn, as of the sponsor's last update on 24 Jul 2020. 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?

Changes in DNA damage repair pathways (time frame: Two months). 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 Jul 2020.

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