Stereotactic Prostate Adaptive Radiotherapy Utilising Kilovoltage Intrafraction Monitoring (SPARK)

May 15, 2026 updated by: University of Sydney

Stereotactic Prostate Adaptive Radiotherapy Utilising Kilovoltage Intrafraction

The SPARK trial is testing the use of Kilovoltage Intrafraction Monitoring in prostate cancer patients being treated with Stereotactic Prostate Adaptive Radiotherapy. The researchers expect this trial to result in better targeted prostate cancer patient outcomes with lower toxicity. The potential application of Kilovoltage Intrafraction Monitoring to other tumour sites will pave the way for additional trials with Australasian radiation oncology leading the world.

Study Overview

Status

Status

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

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

Most linear accelerators used to treat cancer patients today are equipped with fixed X-ray imagers which are typically used to take images of a tumour before a patient receives radiotherapy. A new technology, known as Kilovoltage Intrafraction Monitoring has recently emerged which allows images of a tumour to be taken in real-time while the treatment is occurring. The advantage of Kilovoltage Intrafraction Monitoring is that it enables strategies such as patient shifting or beam shifting during treatment which could potentially improve the accuracy of the treatment and reduce the patient's side effects. In addition, due to the accuracy of Kilovoltage Intrafraction Monitoring in targeting tumours, the number of treatment sessions this group of patients will require will be reduced to five as opposed to the 40 sessions required using more conventional treatment methods.

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 (Actual)

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.
49

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

  • Australia
    • New South Wales
      • Newcastle, New South Wales, Australia, 2298
        • Calvary Mater Newcastle
      • Sydney, New South Wales, Australia, 2065
        • Royal North Shore Hospital
      • Sydney, New South Wales, Australia, 1871
        • Liverpool Cancer Therapy Centre
      • Sydney, New South Wales, Australia, 2145
        • The Crown Princess Mary Cancer Centre Westmead
    • Victoria
      • Melbourne, Victoria, Australia, 3000
        • Peter MacCallum Cancer Centre

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:

  1. Histologically proven prostate adenocarcinoma

  2. Low or intermediate risk disease as defined by:

    • Low Risk: All of PSA<10 ng/mL, Gleason Grade 6 AND Stage T1 or T2a
    • Intermediate Risk: Any or all of PSA 10-20 ng/mL, Gleason Grade 7 OR Stage T2b-c
    • Absence of high risk features (PSA>20, T3-4, N1 or M1 disease, Gleason score 8-10) (PSA must be within 3 months prior to enrolment)
  3. ECOG Performance status 0-2
  4. Suitable for definitive external beam radiotherapy (IMRT or VMAT)
  5. Ability to have three gold fiducial markers placed in the prostate
  6. Six month course of androgen deprivation therapy allowed at clinician discretion.
  7. Available for follow up for a minimum of 2 years (up to 3 years)

Exclusion Criteria:

  1. Lymph node irradiation
  2. Any other systemic anti-prostate cancer therapy (i.e. non-ADT) both proven in the metastatic setting and investigational (e.g. docetaxel, enzalutamide)
  3. Artificial hip(s) (Unable to visualise markers through prosthesis)
  4. Prostate volume > 90 cm3 measured from the CT scan
  5. Patient lateral dimension >40cm as measured at the level of the prostate from the CT scan
  6. Suboptimal fiducial markers placement for treatment utilising KIM as assessed by a medical physicist by measuring marker positions from the CT scan
  7. Fiducial migration or fewer than 3 fiducials present in the CT scan

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

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.
Experimental: Multi-fraction SABR
All participants will receive Multi-Fraction SABR; 36.25 Gy (PTV D95) in 5 Fractions within 2-5 weeks
Radiation: Multi-fraction SABR
All participants will receive Multi-Fraction SABR; 36.25 Gy (PTV D95) in 5 Fractions within 2-5 weeks

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
Time Frame
Accumulated patient dose distributions will be determined via paired controls by comparing the measured treatment accuracy and dose with KIM and those that would have been delivered in the absence of KIM
Time Frame: up to 36 months
up to 36 months

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
Time Frame
Patient treatment outcomes determined by assessing Biochemical-clinical failure (BCF)
Time Frame: up to a maximum of 36 months.
up to a maximum of 36 months.
Patient treatment outcomes determined by assessing acute and late toxicity grade 3 or higher (using CTCAE version 4)
Time Frame: Weekly during treatment, then two weeks, six weeks and 6 months post treatment
Weekly during treatment, then two weeks, six weeks and 6 months post treatment
Patient treatment outcomes determined by assessing patient-reported outcomes
Time Frame: 12 and 24 months after treatment
12 and 24 months after treatment
The patient's perception of KIM will be quantified using an adapted SAT-RAR survey, an instrument that has previously been used to assess patient perceptions on technological innovations in radiotherapy and respiratory gating.
Time Frame: up to 36 months
up to 36 months
Targeting accuracy through measuring the final geometric accuracy with and without the KIM gating procedure
Time Frame: up to 36 months
up to 36 months
Radiation therapists feedback on KIM will be quantified using a survey which will obtain specific information about the impact of the KIM system and SPARK on education, patient workflow, clinical impact and user confidence
Time Frame: up to 36 months
up to 36 months

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.
University of Sydney

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Trans Tasman Radiation Oncology Group

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.
  • Study Chair: Paul Keall, University of Sydney
  • Study Chair: Jarad Martin, Calvary Mater Newcastle

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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

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.
February 1, 2016

Primary Completion (Actual)

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.
March 30, 2020

Study Completion (Actual)

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.
June 19, 2020

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).
March 9, 2015

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.
March 23, 2015

First Posted (Estimated)

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.
March 24, 2015

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.
May 19, 2026

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.
May 15, 2026

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.
May 1, 2026

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.
  • TROG 15.01 SPARK
  • TROG 15.01 (Other Identifier: Trans Tasman Radiation Oncology Group)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

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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