SBRT vs. Conventional Fractionation With HDR Boost for Prostate Cancer (SHARP)

April 11, 2023 updated by: Dr. Gerard Morton

A Randomized Feasibility Trial of Stereotactic Body Radiotherapy Versus Conventional Fractionation With High Dose-rate (HDR) Brachytherapy Boost for Prostate Cancer

Random assignment between SBRT and conventionally fractionated boost following HDR brachytherapy for prostate cancer.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Many treatment options exist for prostate cancer. One common treatment approach is to combine high-dose rate (HDR) brachytherapy (temporary insertion of radiation into the prostate) and external beam radiation. External beam radiation typically requires daily radiation treatment for three to five weeks. Improvements to radiation planning and delivery has allowed stereotactic body radiation therapy (SBRT) to be implemented in many types of cancer. SBRT has been implemented as a standard treatment option after HDR brachytherapy in response to the COVID pandemic. We are seeking to evaluate whether it is feasible to randomly assign men between SBRT (which will be five treatments of radiation or conventional radiation (3-5 weeks of daily treatment) following HDR brachytherapy

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Anticipated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
55

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • Canada
    • Ontario
      • Toronto, Ontario, Canada, M4N 3M5
        • Recruiting
        • Sunnybrook Health Sciences Centre
        • Contact:
          • Gerard Morton, MD, FRCPC
          • Phone Number: 6165 416-480-6100
        • Contact:
        • Principal Investigator:
          • Mark Corkum

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 18 or older
  • Informed consent for treatment and study participation completed
  • Pathologically proven diagnosis of prostate adenocarcinoma
  • ECOG Performance Status 0-2
  • No prior history of pelvic radiotherapy, brachytherapy, cryosurgery, HIFU, TURP or radical prostatectomy

Exclusion Criteria:

  • Presence of nodal or distant metastasis on staging MRI or CT Abdomen/Pelvis and Bone scan within 90 days of enrolment (CT/MRI/Bone Scan are only required if the clinical risk of metastatic disease is sufficient to warrant these scans)
  • Plan for adjuvant chemotherapy post-radiotherapy
  • Serious medical comorbidities or other contraindications to HDR brachytherapy
  • Presence of inflammatory bowel disease
  • Presence of connective tissue disorder seen as a contraindication to radiotherapy
  • Medically unfit for general/spinal anesthesia
  • Unable or unwilling to complete questionnaires

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: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Active Comparator: Conventional Fractionated Radiation
  • Prostate Only Radiation - 37.5Gy in 15 daily fractions to the prostate and proximal/entire seminal vesicle
  • Prostate + Nodal Radiation - 46Gy in 23 daily fractions to the prostate, seminal vesicle and regional lymph nodes
Radiation: Conventionally Fractionated Radiation
External beam radiation therapy treatment
Experimental: Stereotactic Body Radiotherapy
  • Prostate Only Radiation - 25Gy in 5 fractions to the prostate and proximal/entire seminal vesicle
  • Prostate + Nodal Radiation - 25Gy in 5 fractions to the prostate, seminal vesicle and regional lymph nodes
Radiation: Sterotactic Body Radiotherapy
Hypofractionated stereotactic radiation treatment.
Other Names:
  • SBRT

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Treatment Feasibility
Time Frame: 18mo - 2 years
The proportion of patients accepting of being randomized divided by the number of patients approached for the study.
18mo - 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
QOL
Time Frame: 7 years
Urinary, bowel and sexual health-related quality of life measured by the Expanded Prostate Cancer Index Composite (EPIC) domains over the study period. Each domain is normalized from 0 to 100, with a higher score indicating better outcome.
7 years
Treatment Toxicity
Time Frame: 7 years
Proportion of patients with urinary, bowel and sexual Grade 2 and 3 toxicity measured by CTCAE v5.0 throughout the study period.
7 years
Cumulative biochemical failure
Time Frame: 7 years
Defined as the time of enrolment to biochemical failure (based on the Phoenix definition, PSA nadir plus 2)
7 years
Overall Survival
Time Frame: 7 years
Defined as time of enrollment to death from any cause
7 years
Cancer Free Survival
Time Frame: 7 years
Defined as time of enrolment to death attributed to prostate cancer
7 years
Metastasis Free Survival
Time Frame: 7 years
Defined as time of enrolment to development of metastasis or death from any cause
7 years
Freedom From Local Failure
Time Frame: 7 years
Defined as time of enrolment to first local recurrence
7 years
Freedom From Regional Failure
Time Frame: 7 years
Defined as time of enrolment to first regional recurrence
7 years
ADT Free Survival
Time Frame: 7 Years
Defined as time of enrolment to salvage ADT use or death from any cause
7 Years
PSA nadir
Time Frame: 6 years
PSA nadir at 4-years post treatment
6 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Dr. Gerard Morton

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Gerard Morton, Sunnybrook Health Sciences 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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
December 23, 2020

Primary Completion (Anticipated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 23, 2023

Study Completion (Anticipated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 23, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 22, 2021

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 26, 2021

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 27, 2021

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 12, 2023

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 11, 2023

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2023

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 2734 (Insel)

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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