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Prostate CancerPhase 2NCT00774436

Study of Focal Cryoablation in Low-Risk Prostate Cancer

A Phase 2 study testing focal cryotherapy in people with Prostate Cancer, run by Memorial Sloan Kettering Cancer Center 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
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Trial summary

The purpose of this study is to find out if men, with low-risk prostate, can have the small amount of cancer within their prostate removed by freezing, called Focal Cryoablation or Cryotherapy. Read more about this study

Who is it for?
Ages 21 years and older, men only
Conditions the study is for
Prostate Cancer
What is being tested?
focal cryotherapy
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited States
Study dates
14 Oct 2008to 23 Jul 2019
Phase
Phase 2
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 21 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Men ≥ 21 years of age with a life expectancy estimated to be > 10-years.
  • Diagnosis of adenocarcinoma of the prostate and confirmed by MSKCC review
  • No prior treatment for prostate cancer
  • ECOG performance status of 0 or 1
  • Prostate cancer clinical stage T1c-T2a
  • PSA < 10ng/mL (this will be the PSA level prompting the prostate biopsy)
Show all 13Show fewer
  • Prostate Size <60 cc on transrectal ultrasound
  • Repeat transrectal prostate biopsy that must meet the following parameters:
  • Minimum of 12 biopsy cores
  • No Biopsy Gleason grade 4 or 5
  • Unilateral cancer (only right-sided or left-sided, not bilateral)
  • No more than 50% cancer in any one biopsy core
  • No more than 25% of cores containing cancer

Who cannot join

  • Medically unfit for anesthesia
  • Histology other than adenocarcinoma
  • Men who have received any hormonal manipulation (antiandrogens; LHRH agonists) within the previous 6 months
  • Men who are currently receiving anticoagulant drugs (e.g.: Coumadin, warfarin)
  • Second Step Enrollment
  • Medically unfit for anesthesia
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  • Histology other than adenocarcinoma
  • Men who have received any hormonal manipulation (antiandrogens; LHRH agonists) within the previous 6 months
  • Men who are currently receiving anticoagulant drugs (e.g.: coumadin, warfarin)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Memorial Sloan-Kettering Cancer Center

    New York, New York, 10065

Other trials in United States

About this study

Official title: A Phase II Study of Focal Cryoablation in Low-Risk Prostate Cancer

The purpose of this study is to find out if men, with low-risk prostate, can have the small amount of cancer within their prostate removed by freezing, called Focal Cryoablation or Cryotherapy.

Conditions
Prostate Cancer
Being tested
focal cryotherapy
Keywords
focal cryotherapy, low-risk 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.

  • focal cryotherapyProcedure or surgery

    Those men meeting the re-staging biopsy criteria will subsequently be treated with focal cryotherapy. Clinical follow-up visits will be scheduled at 6 + 2 weeks, 3 + 1 months and 6 + 1 months after focal cryotherapy, at which time, a digital rectal examination and PSA test will be performed. Standard quality-of-life questionnaires, are completed by all patients treated by the Urology Service (whether on not they are treated on an IRB protocol).

Study groups in NCT00774436
Study groupRoleWhat they receive
Patients scheduled to receive Focal CryotherapyExperimentalAfter enrollment, patients will undergo a repeat transrectal ultrasound- guided prostate biopsy (minimum of 12 cores) to confirm the low-risk nature of their cancer. For study purposes, patients must meet the original entry crieteria on this repeat biopsy. If the patient meets the repeat-biopsy enrollment criteria, they will be treated with focal cryotherapy, meaning cryoablation of the regions of the prostate containing cancer. Efficacy is defined as all negative biopsy cores at the site of the focal ablation on a repeat transrectal biopsy 6 months after cryoablation. At baseline (prior to the re-staging biopsy), 3 months after focal cryotherapy, and at 6 months after focal cryotherapy (prior to the repeat prostate biopsy used to define efficacy), the patient will complete quality of life questionnaires as standard for all patients in the Urology Service.
Receives: Procedure: focal cryotherapy

What is being measured

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

  1. To assess the local oncologic efficacy of focal cryoablation in men with low-risk, clinically localized prostate cancer, as measured by the ability to obtain all negative biopsy cores at the site of focal ablation of the cancer.

    Measured: conclusion of the study

Secondary outcomes (3)
  1. To evaluate the change from baseline in quality-of-life indicators following focal cryoablation in patients with low-risk localized prostate cancer.

    Measured: conclusion of the study

  2. To evaluate treatment related tissue changes with ultrasound imaging

    Ultrasound examination of the prostate performed at the time of biopsy procedures will be include archiving of 3D digital images to allow post-hoc analysis of the images to assess for tissue changes that may be characterized with imaging software.

    Measured: prior to performing the biopsy

  3. To evaluate treatment related tissue changes with ultrasound imaging

    Ultrasound examination of the prostate performed at the time of biopsy procedures will be include archiving of 3D digital images to allow post-hoc analysis of the images to assess for tissue changes that may be characterized with imaging software.

    Measured: at the 6-8 month patient office visit

Timeline

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

  1. First posted17 Oct 2008 (estimated)
  2. Study start14 Oct 2008
  3. Primary completion23 Jul 2019
  4. Study completion23 Jul 2019

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 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00774436
Sponsor's protocol ID
08-118
Status last verified
Oct 2018
First submitted
15 Oct 2008
Last updated
29 Jul 2019
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing focal cryotherapy in people with Prostate Cancer, run by Memorial Sloan Kettering 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 13 inclusion and 9 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 29 Jul 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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?

To assess the local oncologic efficacy of focal cryoablation in men with low-risk, clinically localized prostate cancer, as measured by the ability to obtain all negative biopsy cores at the site of focal ablation of the cancer. (time frame: conclusion of the study). 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 29 Jul 2019.

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