TracelT Hydrogel in Localizing Bladder Tumors in Patients Undergoing Radiation Therapy for Bladder Cancer

February 6, 2021 updated by: Jing Zeng, University of Washington

TraceIT TM Hydrogel Tissue Marker for Patients Receiving Definitive Chemoradiation for Bladder Cancer

This pilot clinical trial studies how well TracelT hydrogel works in localizing bladder tumors in patients undergoing radiation therapy for bladder cancer. TracelT hydrogel marks the location of a bladder tumor and makes it more visible during imaging tests. Using TracelT hydrogel tissue marker may help doctors learn more about tumor location and altering radiation dosage for bladder cancer.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

PRIMARY OBJECTIVES:

I. To utilize the TraceIT hydrogel tissue marker in localizing bladder tumors during transurethral resection of bladder tumors (TURBT).

II. To improve identification of gross tumor or tumor bed location in patients receiving chemoradiation treatment for bladder cancers.

SECONDARY OBJECTIVES:

I. To report adverse events surrounding the placement of the TraceIT tissue marker.

II. To calculate the actual dose received by the bladder tumor bed, as delineated by the hydrogel.

III. To compare the dosimetric impact to the tumor bed of daily patient alignment to the pelvic bones, versus alignment to the whole bladder, versus alignment to the hydrogel markers.

IV. To calculate the amount of normal tissue radiation dose decrease achievable without losing tumor coverage, with better tumor targeting with hydrogel placement.

OUTLINE:

Patients undergo transurethral resection of bladder tumors and receive TracelT hydrogel via injection. Patients undergo standard of care radiation therapy within 8 weeks of TracelT hydrogel placement.

Study Type

Interventional

Enrollment (Actual)

12

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 Locations

    • Washington
      • Seattle, Washington, United States, 98109
        • Fred Hutch/University of Washington Cancer Consortium

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Histologically confirmed malignancy of the bladder
  • No prior cystectomy
  • Treatment plan for bladder must include at least 4 weeks of daily radiation treatment (most patients will receive chemotherapy concurrent with radiation, but this is not required for trial enrollment)
  • Patient must undergo TraceIT hydrogel placement within 8 weeks prior to starting radiation therapy for bladder cancer
  • Participants must have a complete history and physical examination within 60 days of study entry
  • Participants must be able to provide informed consent for treatment and trial participation
  • No restrictions on prior treatment to be eligible

Exclusion Criteria:

  • Prior cystectomy
  • Unable to have TraceIT hydrogel placement < 8 weeks prior to beginning radiation treatment
  • Treatment for metastatic bladder cancer

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: Supportive care (TracelT hydrogel)
Patients undergo transurethral resection of bladder tumors and receive TracelT hydrogel via injection. Patients undergo standard of care radiation therapy within 8 weeks of TracelT hydrogel placement.
Given TracelT hydrogel via injection
Other Names:
  • PEG Hydrogel

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Changes in Interfraction Motion of the Marker Measured by Cone Beam Computed Tomography (CT) and x/y/z Coordinates
Time Frame: Baseline up to 8 weeks
Daily changes will be compared across the patient group as well as within each subjects' treatment course.
Baseline up to 8 weeks
Changes in Tumor Bed Size and Shape as Delineated by the Hydrogel and Measured by Cone Beam CT and x/y/z Coordinates
Time Frame: Baseline up to 8 weeks
Daily changes will be compared across the patient group as well as within each subjects' treatment course. These changes will be tracked during the entire radiation course (typically 4-8 weeks), yielded a distribution of x/y/z positions for each patient.
Baseline up to 8 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Daily Dose of Radiation to the PTV as Based on Alignment to the Hydrogel Location Versus Alignment to Whole Bladder Location Versus Alignment to Bony Antonym
Time Frame: Up to 8 weeks
Daily pre-radiation imaging will be used to run the radiation treatment plan, to calculate the daily dose to the PTV based on alignment to the hydrogel location, versus alignment to whole bladder location, versus alignment to bony anatomy.
Up to 8 weeks
Daily Dose to the Planning Tumor Volume (PTV) Based on Hydrogel Location
Time Frame: Up to 8 weeks
Daily pre-radiation imaging will be used to run the radiation treatment plan, to calculate the daily dose to the PTV based on hydrogel location. Total radiation dose to the PTV can then be calculated as the sum of the daily dose.
Up to 8 weeks
Number of Participants With Adverse Events Caused by Hydrogel
Time Frame: Up to 1 year
Graded by the Common Terminology Criteria in Adverse Events version 4.0
Up to 1 year
Smallest Setup Margin Required for Consistent Coverage of the Gross Tumor Volume (GTV)
Time Frame: Up to 8 weeks
Daily pre-radiation imaging will be used to identify the smallest setup margin required for consistent coverage of the GTV, which is likely smaller than the current standard of care setup margin of at least 2 cm around the GTV.
Up to 8 weeks

Collaborators and Investigators

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

Sponsor

Collaborators

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)

October 5, 2017

Primary Completion (Actual)

January 1, 2020

Study Completion (Actual)

May 18, 2020

Study Registration Dates

First Submitted

April 13, 2017

First Submitted That Met QC Criteria

April 20, 2017

First Posted (Actual)

April 24, 2017

Study Record Updates

Last Update Posted (Actual)

February 25, 2021

Last Update Submitted That Met QC Criteria

February 6, 2021

Last Verified

February 1, 2021

More Information

Terms related to this study

Other Study ID Numbers

  • 9798 (Fred Hutch/University of Washington Cancer Consortium)
  • P30CA015704 (U.S. NIH Grant/Contract)
  • NCI-2017-00525 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
  • RG3117001 (Other Identifier: Fred Hutch/University of Washington Cancer Consortium)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

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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