AzTrials
AzTrials

Prostate CancerNCT02981797

Assess Gamma H2AX Positivity in Circulating Prostate Cancer Cells Before and After Radium 223

An observational study of Prostate Cancer and Prostate Adenocarcinoma, run by H. Lee Moffitt Cancer Center and Research Institute at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
Search all trials

Trial summary

This is a prospective biomarker study on prostate cancer patients receiving Radium 223 as standard of care. Participants will take part in this research study because they have chosen Radium 223 treatment for their prostate cancer that has spread to the bone and causing pain. Read more about this study

Who is it for?
Ages 18 years and older, men only
Conditions the study is for
Prostate Cancer, Prostate Adenocarcinoma
How many people
10 participants
Where
1 siteUnited States
Study dates
22 Jul 2015to 5 Nov 2020
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 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Study population: Participants who have chosen Radium 223 treatment as Standard of Care, for their prostate cancer that has spread to the bone and causing pain.

Who may be able to join

  • Male patients 18 years or older
  • Histologically or cytologically confirmed adenocarcinoma of the prostate
  • Receiving radium 223 as standard of care for symptomatic metastatic castration resistant prostate cancer to the bone as documented by bone scan or Sodium Fluoride positron emission tomography (PET) bone scan.
  • No evidence of visceral metastasis
  • Prior surgical castration or concurrent use of GnRH analogue (i.e., medical castration) with testosterone at screening <50 ng/dL.
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 -2, ECOG 3 is allowed if due to pain
Show all 12Show fewer
  • Adequate organ function: Serum alanine aminotransferase (ALT) or aspirate aminotransferase (AST) must be < 2.5 x upper limit of normal (ULN); Total bilirubin < 1.5 s ULN; Estimated creatinine clearance must be >40 mL/min; Absolute neutrophil count (ANC) > 1500/l; Hemoglobin above 10 g/dl; platelet count > 100,000/l.
  • Stable medical condition, including the absence of acute exacerbations of chronic illnesses, serious infections or major surgery within 28 days prior to study enrollment
  • Life expectancy of 6 months or more
  • Must agree to practice effective barrier contraception during the entire study treatment period \& through for 6 months after the last dose of study drug, or agree to completely abstain from heterosexual intercourse
  • Able to give written informed consent
  • Have at least 2 CTCs at baseline

Who cannot join

  • Exposure to radioisotope therapy (samarium 153, strontium 89) within 24 weeks or exposure to external beam radiation within 12 weeks of receiving the first dose of Radium 223
  • Documented central nervous system metastases, has a history of seizure, stroke or transient ischemic attack (TIA)
  • Treatment with any investigational compound within 30 days prior to the first dose of study drugs
  • Diagnosis or treatment for another systemic malignancy within 2 years before the first dose of study drugs, or previously diagnosed with another malignancy \& have any evidence of residual disease. Patients with non-melanoma skin cancer or carcinoma in situ of any type are not excluded if they have undergone complete resection.
  • New York Association Class III or IV heart failure
  • Known human immunodeficiency virus (HIV) infection, active chronic hepatitis B or C, life threatening illness unrelated to cancer, or any serious medical or psychiatric illness that could, in investigators opinion, potentially interfere with participation in this study.
  • Potential participants with delayed healing of wounds, ulcers, and/or bone fractures
  • Inability to comply with protocol requirements

Trial locations and contacts

1 site in 1 country.

United States1 site
  • H. Lee Moffitt Cancer Center and Research Institute

    Tampa, Florida, 33612

Other trials in United States

About this study

Official title: Assess Gamma H2AX Positivity in Circulating Prostate Cancer Cells Before and After Radium 223 Treatment

This is a prospective biomarker study on prostate cancer patients receiving Radium 223 as standard of care.

Participants will take part in this research study because they have chosen Radium 223 treatment for their prostate cancer that has spread to the bone and causing pain. Investigators want to find out if a blood test performed before and after the Radium 223 treatment will help to understand how prostate cancer cells react to this therapy.

In this pilot study, researchers want to find out if Radium 223 given as part of standard treatment for prostate cancer can decrease the number of circulating prostate cancer cells. Radium 223 kills prostate cancer cells by damaging their DNA. Other than looking at the changes in the number of circulating prostate cancer cells before and after Radium 223, researchers would also like to look at the changes in a DNA damage marker, called gamma H2AX, in the circulating prostate cancer cells before and after treatment with Radium 223. Assessing the DNA damage marker gamma H2AX is investigational. It is performed in the same tube of blood that is used for assessing the changes in the number of circulating prostate cancer cells.

Read the detailed description

In this pilot study, researchers want to find out if Radium 223 given as part of standard treatment for prostate cancer can decrease the number of circulating prostate cancer cells. Radium 223 kills prostate cancer cells by damaging their DNA. Other than looking at the changes in the number of circulating prostate cancer cells before and after Radium 223, researchers would also like to look at the changes in a DNA damage marker, called gamma H2AX, in the circulating prostate cancer cells before and after treatment with Radium 223. Assessing the DNA damage marker gamma H2AX is investigational. It is performed in the same tube of blood that is used for assessing the changes in the number of circulating prostate cancer cells.

Being tested
Blood Collection During Standard of Care Treatment
Keywords
symptomatic bone metastasis, metastatic, castration resistant
Medical subject headings
Prostatic Neoplasms, Neoplasm Metastasis

What participants receive

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

  • Blood Collection During Standard of Care TreatmentOther

    Blood collection for baseline CTC numeration and H2AX assay. Circulating prostate cancer cell analysis requires blood draw of 7.5 ml (about 1 ½ teaspoons) of blood, to be performed at the screening, 1-2 hours before the third and sixth dose of radium 223 and 24 hours after the first, third, sixth dose of Radium 223. Standard of care Radium 223 treatment is given every 4 weeks for a total of 6 treatments and post Radium 223 follow up at week 24 is also considered standard of care. Other than these standard clinic visits and treatments, the study only requires 3 extra trips to the cancer center for blood draw at 24 hours after the first, third, sixth dose of Radium 223. Blood draws other than circulating tumor cell analysis is considered standard of care and doesn't require extra visits.

Study groups in NCT02981797
Study groupRoleWhat they receive
Radium 223 Standard of CareStandard of Care and Blood Collection for Baseline Circulating Tumor Cells (CTCs) Numeration and H2AX Assay. Participants who have chosen Radium 223 treatment for their prostate cancer that has spread to the bone and causing pain. Week 1 starts with the first Radium 223 treatment and week 24 ends 4 weeks after the last or sixth Radium 223 treatment. The circulating prostate cancer cell analysis will be performed within 24 hours of blood draw. Any unused blood samples for circulating prostate cancer cell analysis will be disposed per lab protocol.
Receives: Other: Blood Collection During Standard of Care Treatment

What is being measured

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

  1. Changes in Gamma H2AX Positivity

    Assess changes in gamma H2AX positivity in circulating prostate cancer cells before and after Radium 223 treatment. CTC numeration, the gamma-H2AX detection and interpretation will be performed by Veridex with the cell search platform.

    Measured: 24 weeks per participant

  2. Changes in Circulating Prostate Cancer Cell Numbers

    Assess changes in circulating prostate cancer cell numbers before and after Radium 223 treatment. CTC numeration, the gamma-H2AX detection and interpretation will be performed by Veridex with the cell search platform.

    Measured: 24 weeks per participant

Secondary outcomes (3)
  1. Pain Response

    Pain response based on Brief Pain Inventory. Pain will be assessed using the Brief Pain Inventory (BPI) Items #3 (worst pain over the last 24 hours by recall), #5 (average pain over the past 24 hours by recall) and #9 (interference with daily activities and sleep).

    Measured: Up to 24 weeks

  2. Changes in Narcotic Analgesic Use

    Changes in narcotic analgesic use in participants requiring narcotics at baseline at each radium 223 treatment and week 24. Participants will self-report analgesic use over the past 24 hours.

    Measured: Up to 24 weeks

  3. PSA Response

    PSA response (30% decline of pretreatment PSA) at week 12.

    Measured: At week 12

Timeline

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

  1. First posted5 Dec 2016 (estimated)
  2. Study start22 Jul 2015
  3. Primary completion29 Aug 2017
  4. Study completion5 Nov 2020

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
Prospective
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02981797
Sponsor's protocol ID
MCC-17725
Other IDs
ONC-2013-067
Status last verified
Jun 2021
First submitted
29 Nov 2016
Last updated
11 Jun 2021
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Prostate Cancer and Prostate Adenocarcinoma, run by H. Lee Moffitt Cancer Center and Research Institute 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 12 inclusion and 8 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: finished, as of the sponsor's last update on 11 Jun 2021. 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 is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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 Gamma H2AX Positivity (time frame: 24 weeks per participant). The study lists 2 primary outcomes in all. 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 11 Jun 2021.

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