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Soft-Tissue SarcomaPhase 2NCT01389050

High Precision RT For Soft-Tissue Sarcoma

A Phase 2 study testing Intensity-Modulated Radiotherapy and Daily Cone Beam CT in people with Soft-Tissue Sarcoma, run by University Health Network, Toronto at 1 site in Canada.

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

This research study aims at defining 1) how retroperitoneal sarcomas change over the course of radiotherapy and 2) how radiotherapy affects your well-being. While the investigators know that radiotherapy before surgery is safe and effective, the amount of tumor motion and size change during radiotherapy is unknown. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Soft-Tissue Sarcoma
What is being tested?
Intensity-Modulated Radiotherapy and Daily Cone Beam CT
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
26 participants
Where
1 siteCanada
Study dates
1 Jun 2011to 6 Jan 2022
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Pathologically (histologically or cytologically) proven diagnosis of sarcoma (except for GIST, Ewing's sarcoma and rhabdomyosarcoma) within the retroperitoneum. These include patients with locally recurrent disease
  • Planned to receive pre-operative radiotherapy
  • Will undergo a planning CT
  • Karnofsky Performance Status of ≥ 70 within 28 days prior to study entry
  • No systemic chemotherapy given prior to pre-operative radiotherapy
  • Able to provide written, informed consent
  • Women of childbearing potential and men who are sexually active must practice adequate contraception.

Who cannot join

  • Tumor pathology of GIST, Ewing's sarcoma or rhabdomyosarcoma
  • Metastatic disease to the retroperitoneum from a primary sarcoma not originating from the retroperitoneum
  • Systemic chemotherapy given prior to pre-operative radiotherapy.
  • Intent on giving chemotherapy ≤ 12 months from the completion of radiotherapy
  • Inability to undergo a 4D-CT simulation
  • KPS < 70
  • Unable to provide informed consent
  • Pregnant women

Trial locations and contacts

1 site in 1 country.

Canada1 site
  • Princess Margaret Hospital

    Toronto, Ontario, M5G 2M9

Other trials in Canada

About this study

Official title: Use of High Precision Radiotherapy in the Management of Soft-Tissue Sarcomas

This research study aims at defining 1) how retroperitoneal sarcomas change over the course of radiotherapy and 2) how radiotherapy affects your well-being. While the investigators know that radiotherapy before surgery is safe and effective, the amount of tumor motion and size change during radiotherapy is unknown. There is also very little information that describes the side-effects of radiotherapy in the treatment of this disease.

Read the detailed description

Soft-tissue sarcomas (STS) that arise from the retroperitoneum are rare malignancies that are anatomical located deep within the abdominal area and thus pose challenges to surgical and radiotherapeutic management of the patient. As a result, the local control and overall survival for patients with retroperitoneal sarcomas (RPS) are worse than STS from the extremities. Current treatment strategy involves pre-operative radiotherapy followed by surgery. Use of intensity-modulated radiotherapy (IMRT) in RPS had allowed for more conformal treatments with the aim of sparing normal tissues from high doses of irradiation. Yet the accuracy and coverage of IMRT depend highly on target motion, and little is known about the motion of RPS during the course of radiotherapy. As well, RPS are commonly in close proximity to sensitive organs for which the long-term toxicity and effect on quality of life secondary to radiation is unknown. The current study seeks to evaluate the extent of tumor motion during radiotherapy and the impact of radiotherapy to patient toxicity and quality of life. At the conclusion of this study, our results will hopefully identify the optimum PTV, the importance of different normal tissues and their dose-volume constraints, the role of image guidance, and the potential for dose escalation in the treatment of RPS.

Being tested
Intensity-Modulated Radiotherapy, Daily Cone Beam CT
Medical subject headings
Sarcoma

What participants receive

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

  • Intensity-Modulated RadiotherapyRadiation

    Also called Pre-operative IMRT

    Radiotherapy for the treatment of retroperitoneal sarcoma. IMRT will be 50.4 Gy given in 28 fractions.

  • Daily Cone Beam CTRadiation

    Also called daily cone-beam Computed Tomography (CT)

    Images and information from the daily CT will be used for the repositioning of the patient prior to their treatments as per standard procedures.

Study groups in NCT01389050
Study groupRoleWhat they receive
Follow-upNo interventionData from these patients will be added to retrospectively gathered data from the PMH radiotherapy data bank (approximately 50 patients). The data collected will be analyzed using descriptive statistics.
ProspectiveExperimentalNot described
Receives: Radiation: Intensity-Modulated Radiotherapy; Radiation: Daily Cone Beam CT

What is being measured

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

  1. To determine the extent of inter-fractional and intra-fractional movement of the GTV during radiotherapy treatments.

    To quantify and describe the movement of the tumor during and between radiotherapy treatments using imagings acquired during the course of radiotherapy planning and treatments.

    Measured: 3 years

  2. To assess the acute and long-term toxicity of pre-operative radiotherapy as a function of the dose given to normal tissues and its impact on patient quality of life.

    To describe the effect of radiotherapy to the patient by measuring the acute and long-term side-effects of radiation therapy.

    Measured: 10 years

Secondary outcomes (2)
  1. Describe variations in the volume and shape of the GTV over the course of the treatment and need for adaptive therapy.

    To measure and better define the response of the tumor to radiotherapy during treatments.

    Measured: 3 years

  2. Correlate the pattern of local recurrence with the dose of radiation delivered accounting for motions and volume changes of target structures.

    To determine whether there is a pattern of local relapse with the actual dose of radiation delivered to the tumor environment when tumor volumetric and positional changes are taken into account.

    Measured: 10 years

Timeline

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

  1. First posted7 Jul 2011 (estimated)
  2. Study start1 Jun 2011
  3. Primary completion6 Jan 2022
  4. Study completion6 Jan 2022

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
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
26 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01389050
Sponsor's protocol ID
UHN REB 10-0854-CE
Status last verified
Oct 2022
First submitted
30 Jun 2011
Last updated
7 Oct 2022
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Intensity-Modulated Radiotherapy and Daily Cone Beam CT in people with Soft-Tissue Sarcoma, run by University Health Network, Toronto at 1 site in Canada.

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 7 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 7 Oct 2022. 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 Canada. 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 determine the extent of inter-fractional and intra-fractional movement of the GTV during radiotherapy treatments. (time frame: 3 years). 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 7 Oct 2022.

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