Proton Radiotherapy for Recurrent Tumors

Retreatment of Recurrent Tumors Using Proton Therapy

The purpose of this study is to determine the feasibility of using proton radiotherapy for reirradiation of recurrent malignancies.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Patients will be stratified by treatment site (Head and Neck, Thorax, Abdomen, Pelvis, Extremities) and by treatment volume (low volume, high volume) for a total of 10 strata. This study will be done in two phases. In the first phase, feasibility will be established using the primary objectives set below. The second phase will begin no earlier than 90 days after the last patient in the initial phase has completed treatment in each strata and once feasibility has been verified. The secondary objectives will serve as the objectives for the second phase of the study.

Study Type

Interventional

Enrollment (Anticipated)

24

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

    • Illinois
      • Warrenville, Illinois, United States
        • ProCure Proton Therapy Center
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73142
        • Procure
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Abamson Cancer Center of the University of Pennsylvania

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:

  • Patients with histologically confirmed, non-CNS solid malignancies who have been previously radiated and have a tumor recurrence in or near prior radiation fields. Re-biopsy of the recurrence is not required and left to the discretion of the treating physician, although every effort should be made to confirm recurrence.
  • Patients must have a Karnofsky Performance Status of 60. Life expectancy of 3 months .
  • Age greater or equal to 18.
  • Patients must be able to provide informed consent.
  • Women of child bearing potential as long as she agrees to use a recognized method of birth control (e.g. oral contraceptive, IUD, condoms or other barrier methods, etc.)
  • Hysterectomy or menopause must be clinically documented.

Exclusion Criteria:

  • Prior radiation treatment less than 3 months from planned start of re-irradiation of any part of the intended treatment volume.
  • Pregnant women, women planning to become pregnant and women that are nursing.
  • Actively being treated on any research study.

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: DIAGNOSTIC
  • Allocation: RANDOMIZED
  • Interventional Model: PARALLEL
  • Masking: NONE

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
ACTIVE_COMPARATOR: small volume strata
12 in small volume strata
ACTIVE_COMPARATOR: large volume strata
12 in large volume strata

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Feasibility of proton therapy
Time Frame: 90 days

To determine if the study is infeasible, defined if greater than 10% of pts experience one of the following:

  1. Patient cannot be given treatment because anatomy is such that a dosimetrically satisfactory treatment plan cannot be devised.
  2. Patient who receives 15% or more of their treatments (for any reason, i.e. unable to set patient up within acceptable limits of tolerance, patient unable to tolerate treatment position or immobilization for duration of treatment) using photon radiotherapy (i.e. up to 15% of treatments could be delivered using photons).
  3. Patient is unable to complete all of his/her treatments within 10 days of estimated date of treatment completion or requires a treatment break greater than 5 days.
90 days
Acute Toxicity
Time Frame: within 90 days
Acute Toxicity is defined as any grade 4 toxicity observed within 90 days from the initiation of radiotherapy that is felt to be directly related to their proton treatment. Toxicities will be graded by NCI CTC Version 4.0
within 90 days

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Late toxicity
Time Frame: open-ended
Late toxicity is defined as any grade 3 or higher toxicity observed later than 90 days from start of therapy. Late toxicities will be graded according to the RTOG/EORTC late morbidity scoring system.
open-ended

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Marcio Fagundes, MD, Procure, Oklahoma City, OK
  • Principal Investigator: William F. Hartsell, MD, ProCure Proton Therapy Center, Warrenville, IL

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)

February 1, 2010

Primary Completion (ACTUAL)

February 1, 2017

Study Completion (ACTUAL)

April 1, 2020

Study Registration Dates

First Submitted

May 17, 2010

First Submitted That Met QC Criteria

May 18, 2010

First Posted (ESTIMATE)

May 19, 2010

Study Record Updates

Last Update Posted (ACTUAL)

April 24, 2020

Last Update Submitted That Met QC Criteria

April 23, 2020

Last Verified

April 1, 2020

More Information

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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