High Dose Intensity Modulated Proton Radiation Treatment +/- Surgical Resection of Sarcomas of the Spine, Sacrum and Base of Skull

June 16, 2026 updated by: Kevin X. Liu, MD, DPHIL, Massachusetts General Hospital

Phase II Study of High Dose Intensity Modulated Proton Radiation Treatment +/- Surgical Resection of Sarcomas of the Spine, Sacrum and Base of Skull

There are two types of external radiation treatments; proton beam and photon beam radiation. What type of therapy participants will receive will depend upon the location of their tumor. Standard treatment would involve receiving either proton or photon radiation delivered by a three dimensional (3-D) conformal radiation technique. 3-D conformal radiation therapy is a technique where the beams of radiation used in the treatment are shaped to match the tumor in order to avoid damaging the healthy surrounding tissue. Standard treatment also may include photon radiation delivered by intensity modulated (IMRT) technique. In this research study we are using an investigational technique to deliver proton radiation therapy called intensity modulated proton radiation treatment (IMPT) which is used to target cancer while sparing healthy tissue. With IMPT (and standard IMRT), radiation intensity can be turned down during the treatment. This control over the intensity of the radiation dose has the potential to provide accuracy and allows us to more safely increase the amount of radiation delivered to the tumor. This accuracy may potentially reduce side effects that patients would normally experience with 3-D proton radiation therapy. Surgery is often an important component of the treatment for these tumors and may be integrated with the IMPT.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not 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

  • Before beginning radiation therapy, the participants will have a radiation planning computed tomographic (CT) scan of the tumor site. This is considered standard of care and the doctor will use the images from this scan to plan the radiation treatment.
  • Participants may also receive surgery either before or after the study radiation treatment. This surgery is also considered standard of care and would be done regardless of being in the research study.
  • The IMPT technique for delivering radiation is for research purposes only. Radiation treatment to the affected tumor will be given daily, Monday through Friday.
  • The following procedures will be performed once a week during treatment: assessment of nerve, neuromuscular, motor and sensory function by clinical exam and toxicity assessment.
  • Participants will return for follow-up visits after completion of the radiation treatment at the following intervals: 6 weeks after completion of treatment, 6 months after treatment, every 6 months thereafter for 4 years, and then each year after for up to 15 years.

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.
64

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 Locations

  • United States
    • Massachusetts
      • Boston, Massachusetts, United States, 02115
        • Massachusetts General Hospital
    • Texas
      • Houston, Texas, United States, 77030
        • MD Anderson Cancer Center

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:

  • Pathological diagnosis of chondrosarcoma of the spine or sacrum or chordoma of the base of skull, spine or sacrum. Pathologic diagnosis to be confirmed at MGH or other participating institution.
  • Participants need not have measurable disease. Lesion may be primary or recurrent after prior surgery. Patient tumor status: 1) Status post biopsy only and no further surgery planned, 2) Status post resection with gross residual disease, 3) Status post grossly complete research but with margins positive or close (10mm or less), 4) Status post biopsy and patient to have additional surgery and radiation
  • No prior radiation treatment to the affected skull base, spine, or sacral region. Prior chemotherapy is allowed within 30 days of start of treatment
  • 18 years of age or older
  • ECOG Performance Status of 0, 1 or 2
  • NOrmal organ and marrow function as outlined in the protocol
  • No clinical, radiographic or other evidence of distant metastasis
  • Women of child-bearing potential and men must agree to use adequate contraception prior to study entry and for the duration of study participation

Exclusion Criteria:

  • Participants may not be receiving any other investigational agents
  • Participants with metastases
  • Evidence of brainstem/cord/cauda or other neuromuscular or neurosensory malfunction from causes other than effects of local tumor growth or metabolic effects of tumor
  • Uncontrolled intercurrent illness including, but not limited to ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements. Disease/conditions characterized by high radiation sensitivity. These include genetic diseases, such as ataxia telangiectasia
  • Pregnant women
  • Individuals with a history of a different malignancy are ineligible except for the following circumstance. Individuals with a history of other malignancies are eligible if they have been disease-free for at least 5 years and are deemed by the investigator to be at low risk for recurrence of that malignancy. Individuals with the following cancers are eligible if diagnosed and treated within the past 5 years: cervical cancer in situ, and basal cell or squamous cell carcinoma of the skin.Individuals treated for localized, node-negative cancers > 2 years ago with no evidence of cancer are also considered eligible.
  • HIV-positive individuals on combination antiretroviral therapy

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: IMPT
High dose IMPT
Radiation: High Dose Intensity Modulated Proton Radiation
Radiation given once a day Monday-Friday
Other Names:
  • IMPT

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
Local Tumor Control
Time Frame: 3 years
To define the efficacy or high dose fractionated radiation alone or combined with surgery in achieving local tumor control in patients with base of skull chordomas and patients with spine/sacral chordomas or chondrosarcomas using intensity modulated photon and proton techniques.
3 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
Sites of Failure
Time Frame: 3 years
To determine the anatomic sites of failure.
3 years
Number of Participants with Acute and Late Normal Tissue Toxicity scored according to the CTCAE
Time Frame: 3 years
To evaluate the acute and late normal tissue tolerance of high dose intensity modulated proton/photon radiation treatment in this patient population, as assessed according to the CTCAE
3 years
Functional Status
Time Frame: 3 years
To assess the late functional status of the cranial/lumbar/sacral nerves, brain stem, and spinal cord after treatment.
3 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.
Massachusetts General Hospital

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.
M.D. Anderson Cancer Center
National Cancer Institute (NCI)

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: Thomas F. DeLaney, MD, Massachusetts General Hospital

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.
December 1, 2012

Primary Completion (Estimated)

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 30, 2027

Study Completion (Estimated)

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 31, 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 28, 2011

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 29, 2011

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.
May 2, 2011

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.
June 17, 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.
June 16, 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.
June 1, 2026

More Information

Terms related to this study

Keywords

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.
  • 10-133
  • 2P01CA021239 (U.S. NIH Grant/Contract)

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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