Vertebral Body Sparing Craniospinal Irradiation for Pediatric Patients With Cancer of the Central Nervous System

  • STATUS
    Recruiting
  • participants needed
    10
  • sponsor
    Emory University
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Updated on 16 February 2024
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Summary

This trial studies the feasibility of using intensity modulated proton therapy to deliver craniospinal irradiation while avoiding the bones of the vertebral column. Intensity modulated proton therapy is an advanced radiation therapy modality that uses high energy protons to kill cancer cells and shrink tumors, and may reduce the side effects of treatment by reducing radiation exposure to the spinal column.

Description

PRIMARY OBJECTIVES:

I. To demonstrate the feasibility and safety of using intensity modulated proton therapy to deliver vertebral body sparing craniospinal irradiation in growing children.

Ia. To report the dose received to the vertebral bodies and the dose gradient/heterogeneity within the vertebral body.

Ib. To document, using weekly cone beam computed tomography (CT) of the cervical and lumbar spine, delivered dose in comparison with planned dose after accounting for any errors in patient positioning.

II. To evaluate acute toxicity of vertebral body sparing (VBS) craniospinal irradiation (CSI).

IIa. To report absolute lymphocyte counts over time and occurrence of grade 3-4 hematological toxicity.

IIb. To report the incidence and severity of any grade esophagitis during or within 4 weeks of radiation therapy.

III. To evaluate the feasibility of magnetic resonance imaging (MRI) imaging during CSI therapy as in vivo proton range verification.

IIIa. To demonstrate the feasibility of completing interim non-contrast MRIs of the spine during treatment.

IIIb. To characterize the earliest time point at which radiation induced bone marrow changes can be detected in children receiving proton CSI.

OUTLINE

Patients undergo intensity modulated proton therapy once daily over 30 fractions and also undergo MRI over 20 minutes during fractions 7, 13, 20, and 30 of radiation in the absence of disease progression or unacceptable toxicity.

After the completion of study treatment, patients are followed up at 4 weeks and then every 3-12 months thereafter.

Details
Condition Malignant Central Nervous System Neoplasm
Age 3years - 18years
Treatment Magnetic Resonance Imaging, Intensity-Modulated Proton Therapy
Clinical Study IdentifierNCT04276194
SponsorEmory University
Last Modified on16 February 2024

Eligibility

 Yes No Not Sure

Inclusion Criteria

Pathologic diagnosis of central nervous system malignancy requiring craniospinal irradiation
Signed informed consent and assent when indicated

Exclusion Criteria

Any contraindication to undergoing MRI (ferromagnetic implants such as aneurysm clips, surgical clips, prostheses, artificial cardiac valves or devices, electrical implants such as cardiac pacemakers or perfusion pumps). Metal fragments, shrapnel, or tattoos near the eye
Any major uncontrolled or poorly controlled current illness that would limit compliance with study requirements
Pregnant females are excluded. Females of childbearing age/menstruating must confirm that either they are not sexually active or have a negative pregnancy test prior to initiation of radiation therapy
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