Prospective Evaluation of Hypofractionated Stereotactic RT Using CyberKnife for Patients With Prostate Cancer (CYBERPROST)

February 4, 2020 updated by: The Greater Poland Cancer Centre

Prospective Evaluation of Hypofractionated Stereotactic RT (SBRT) Using CyberKnife for Patients With Low and Intermediate Risk of Progression Prostate Cancer.

The main purpose of study is to evaluate hypofractionated stereotactic radiotherapy (SBRT) using CyberKnife for Patients with low and intermediate risk of progression prostate cancer.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Evaluation of the usefulness expression of selected proteins (PTEN, SMAD4, Cyclin D1, SPP1) as prognostic and predictive factors.

Study Type

Interventional

Enrollment (Anticipated)

600

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • Poland
    • Wielkopolska
      • Poznan, Wielkopolska, Poland, 61-866
        • Recruiting
        • Greater Poland Cancer Centre
        • Contact:
        • Contact:
        • Principal Investigator:
          • Piotr Milecki, MD PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

40 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • men from 40 to 75 years of age with a confirmed adenocarcinoma prostate, prostate biopsy will be performed <180 days prior to the randomization date,
  • completed assessment of tumor differentiation according to Gleason grading allows to perform stratification;
  • general Performance Status according to the Eastern Cooperative Oncology Group (ECOG) classification ( 0 -1),
  • belonging to the group of low and intermedium risk of progression; (cT1-cT2c, Gleason 7, PSA to 19.9 ng / ml), cT specified by AJCC 7 Edition (appendix 2),
  • PSA marked at least 10 days after or before the biopsy, and for patients taking phytosterol 30 days after discontinuation,
  • no distant metastases,
  • signing informed consent,
  • morphological and biochemical blood parameters within the normal limits.

Exclusion Criteria:

  • the presence of active cancer, except skin cancer preceding period 5 years prior to randomization,
  • surgical treatment (radical prostatectomy) or RT in the pelvic area,
  • co-morbidities that may significantly affect the expectancy life of the patients
  • do not meet the criteria for inclusion.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Hypofractionated Stereotactic SBRT

By assuming a hypofractionated irradiation scheme, it is assumed that between the fractions sublethal radiation damage is being treated and the time factor does not significantly affect RT result. The SBRT fractional dose was determined on the basis of a Biologically Effective Dose (BED) calculation using a linear-square model, which assumes that α / β takes the following values for:

  • tumor (RS) = 1.5
  • Late rectal and bladder complications = 3.0
  • early rectal and bladder complications = 10.0.
Radiation: SBRT
hypofractionated stereotactic radiotherapy (SBRT) using CyberKnife for Patients With Low and Intermediate Risk of Progression Prostate Cancer

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
survival time without biochemical recurrence,
Time Frame: 5 years
Phoenix definition of biochemical failure
5 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
survival time specific for prostate cancer,
Time Frame: 5 years
the period of time from randomization until death from prostate cancer
5 years

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
QoL-EORTC quality of life
Time Frame: 5 years
For QoL the EORTC questionnaire (C30 with PR25) is used.
5 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

The Greater Poland Cancer Centre

Investigators

  • Principal Investigator: Piotr Milecki, PhD., MD, Greater Poland Cancer Centre

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

August 26, 2013

Primary Completion (Anticipated)

December 1, 2020

Study Completion (Anticipated)

August 1, 2025

Study Registration Dates

First Submitted

May 19, 2017

First Submitted That Met QC Criteria

July 20, 2017

First Posted (Actual)

July 21, 2017

Study Record Updates

Last Update Posted (Actual)

February 5, 2020

Last Update Submitted That Met QC Criteria

February 4, 2020

Last Verified

February 1, 2020

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CYBERPROST

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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