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Proton Craniospinal Irradiation With Bone Sparing to Decrease Growth Decrement From Radiation

Craniospinal Irradiation Using Proton Beam Scanning With Selective Vertebral Body/Bone Sparing to Improve Marrow Reserve and Decrease Growth Decrement for Children

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03281889
Enrollment
20
Registered
2017-09-13
Start date
2018-01-04
Completion date
2027-12-31
Last updated
2026-08-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Brain Tumor

Keywords

Brain Tumor

Brief summary

This research study is studying proton radiation as a possible treatment for brain tumor that requires radiation. The radiation involved in this study is: -Proton Radiation

Detailed description

This research study is a Pilot Study to determine whether using proton therapy in participants that require craniospinal radiation (whole brain and spinal cord radiation therapy) with sparing of the bony spine will work. This is the first time investigators are examining bone sparing proton therapy in pediatric craniospinal radiation. The FDA (the U.S. Food and Drug Administration) has not approved proton radiation for this specific disease but it has been approved for other uses. In this research study, the investigators are studying proton radiation in participants that require craniospinal radiation. The standard of care for this procedure is photon radiation, which is very similar to proton radiation. The investigators believe that the precision of proton radiation may help to reduce the negative effects radiation has on the surrounding non-cancerous growing and developing tissue

Interventions

RADIATIONProton Beam

precision radiation that reduce the negative effects radiation has on the surrounding non-cancerous growing and developing tissue

Sponsors

Massachusetts General Hospital
Lead SponsorOTHER
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
3 Years to 18 Years
Healthy volunteers
No

Inclusion criteria

* Age ≥ 3 years and ≤ 18 years at the time of registration * Histologically proven malignancy necessitating cranio-spinal irradiation. This will include patients with a diagnosis of medulloblastoma, Supratentorial primitive neuroectodermal tumor (SPNET), germ cell tumor (GCT), disseminated ependymoma, embryonal tumor with abundant neuropil and true rosettes (ETANTR), Atypical Teratoid/Rhabdoid Tumor (ATRT), and disseminated low-grade glioma (LGG). * Life expectancy ≥ 12 months. * Signed informed consent document and assent when appropriate. * HGB of \> 10 g/L and PLT count \> 80 K/uL

Exclusion criteria

* Any prior therapeutic radiation therapy \> 500 cGy has been delivered. * Individuals with a history of a different malignancy are ineligible except for the following circumstances: if they have been disease-free for at least 5 years and are deemed by the investigator to be a low-risk for recurrence of that malignancy; or, have had only cervical cancer in situ, or basal cell or squamous cell carcinoma of the skin. * Any major uncontrolled or poorly controlled intercurrent 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. * Patients that receive concurrent chemotherapy with the exception of concurrent Vincristine.

Design outcomes

Primary

MeasureTime frameDescription
Feasibility of cranio-spinal irradiation (CSI) utilizing intensity-modulated proton therapy (IMPT) with pencil beam scanning (PBS) for vertebral body sparing (VBS) in pediatric patients.3 monthsIMPT using PBS delivery will be considered to be feasible as a VBS technique for CSI in pediatric patients if the rate of grade 3/4 hematologic toxicity were no more than 5% within 3 months after the completion of radiation treatment, within the range associated with conventional techniques of CSI. Toxicity will be assess using Common Terminology Criteria for Adverse Events (CTCAE) Version 4.0.

Secondary

MeasureTime frameDescription
Early marrow changes in the vertebral bodies2 yearsSummary of early marrow changes in the vertebral bodies by Magnetic resonance imaging (MRI) of the spine during radiation therapy (RT) by comparing one study MRI to the baseline pre-RT MRI.
Vertebral column growth (measured by MRI) over 1 yearLast day of treatment to 1 year laterSummary of vertebral column growth (measured by MRI) over 1 year following vertebral body sparing cranio-spinal irradiation in pediatric patients.
Change in sitting height and standing heightAnnually for 5 yearsSummary of the changes in the participants sitting and standing heights.
Time to abnormality in spinal curvature5 yearsParticipants are monitored both clinically and by MRI for any abnormality in spinal curvature. The time to abnormality in spine curvature will be measured from the start of radiation to the date of documented abnormality or censored at the date of last follow-up for patients still alive with normal spine.
Disease Free Survival5 yearsDisease-free survival is measured from the start of radiation to the date of progressive disease based on imaging studies obtained as standard care or to the date of death due to any cause, whichever is earlier. Disease-free survival will be estimated using the Kaplan-Meier method. Patients without progressive disease and still alive will be censored at their date of last contact.
Pattern of Disease Relapse2 yearsSummary of the sites where the cancer relapses. Relapse is the regrowth of cancer cells.
Complete blood counts (CBC) over timeAnnually for 5 yearsSummary of the change in complete blood counts (CBC) over time as determined by yearly blood samples.
Change in levels of vitamin D, calcium, and growth hormones over timeAnnually for 5 yearsSummary of the changes in blood levels of vitamin D, calcium, and growth hormones.
WeightAnnually for 5 yearsSummary of the changes in weight of the participants as assessed by yearly evaluations.
BMIAnnually for 5 yearsSummary of the body mass index (BMI) of the participants as assessed by yearly physical evaluations.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORShannon MacDonald, MD

Massachusetts General Hospital

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 8, 2026