Proton Beam Radiotherapy for Medulloblastoma and Pineoblastoma
2 other identifiers
interventional
90
1 country
2
Brief Summary
There are two types of external radiation treatments (proton beam and photon beam). As part of the participant's treatment, they will receive radiation to the entire central nervous system (CNS); this is known as craniospinal irradiation (CSI). In the past, photon radiation therapy has been used for CSI. In this study we will be examining the effects of proton beam radiation therapy. Studies have suggested that this kind of radiation can cause less damage to normal tissue than photon radiation therapy. The physical characteristics of proton beam radiation let the doctor safely deliver the amount of radiation delivered to the tumor that is normally delivered through standard therapy but spare more normal tissue in the process.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for not_applicable
Started Apr 2010
Longer than P75 for not_applicable
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
February 3, 2010
CompletedFirst Posted
Study publicly available on registry
February 5, 2010
CompletedStudy Start
First participant enrolled
April 8, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2021
CompletedStudy Completion
Last participant's last visit for all outcomes
November 1, 2021
CompletedResults Posted
Study results publicly available
August 13, 2025
CompletedAugust 13, 2025
August 1, 2025
11.6 years
February 3, 2010
April 1, 2025
August 11, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Cumulative Incidence of Ototoxicity
Cumulative incidence (estimated percentage participants) who experienced ototoxicity defined as either grade 3 or 4 hearing loss in either ear after the completion of radiation therapy in the overall participant population. Cumulative incidence and 95% confidence intervals are shown at 3- and 5-years post RT (radiation treatment)
3- and 5- years post radiation treatment
Endocrine Dysfunction
Cumulative incidence (estimated percentage participants) that developed endocrine dysfunction at 3- and 5-years following completion of proton radiation therapy.
3- and 5- years post radiation treatment
Neurocognitive Effects
Difference in Full-Scale Intelligence Quotient (FSIQ) between baseline and latest follow-up neurocognitive test. Tests used include WISC (Wechsler Intelligence Scale for Children) IV, WISC V, WAIS (Wechsler Adult Intelligence Scale) III, WAIS IV. The test measures the FSIQ of children through four indices; the Verbal Comprehension Index (VCI), Perceptual Reasoning Index (PRI), working memory test, and a processing speed test. FSIQ and the four indices are all assessed on a bell curve scale with an average score of 100 and standard deviation of 15. Higher scores represent higher intelligence and lower scores represent reduced intelligence.
Baseline and Follow-up (median of 6 years)
Secondary Outcomes (3)
Progression Free Survival
3- and 5-years post radiation treatment
Treatment Efficiency
2 years
Percentage of Participants Who Experienced an Acute Toxicity by Grade
3 months after radiation therapy
Study Arms (1)
Proton Beam Radiation
EXPERIMENTALProton Beam Radiation
Interventions
Eligibility Criteria
You may qualify if:
- Participants must have undergone biopsy or attempted surgical resection and must have histologically confirmed medulloblastoma or pineoblastoma.
- Participants may have had a gross total resection, sub-total resection or biopsy only.
- For patients with no prior chemotherapy, treatment must start within 35 days of definitive surgery or as indicated if enrolled on therapeutic study
- Age range between 3 and 25 at the time of enrollment
- Life expectancy of greater than 3 months
- Blood laboratory values as outlined in the protocol
- Women of child-bearing potential and men must agree to use adequate contraception prior to study entry and for the duration of study participation
You may not qualify if:
- Patients with more than one previous chemotherapy regimen
- Patients with recurrent or progressive disease after one or more regimens of pre-radiation chemotherapy
- Patients with prior radiation therapy
- Any major uncontrolled or poorly controlled intercurrent illness that would limit compliance with study requirements
- Pregnant women
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Massachusetts General Hospitallead
- M.D. Anderson Cancer Centercollaborator
- National Cancer Institute (NCI)collaborator
Study Sites (2)
Massachusetts General Hospital
Boston, Massachusetts, 02115, United States
MD Anderson Cancer Center
Houston, Texas, 77030, United States
Related Publications (1)
Vatner RE, Niemierko A, Misra M, Weyman EA, Goebel CP, Ebb DH, Jones RM, Huang MS, Mahajan A, Grosshans DR, Paulino AC, Stanley T, MacDonald SM, Tarbell NJ, Yock TI. Endocrine Deficiency As a Function of Radiation Dose to the Hypothalamus and Pituitary in Pediatric and Young Adult Patients With Brain Tumors. J Clin Oncol. 2018 Oct 1;36(28):2854-2862. doi: 10.1200/JCO.2018.78.1492. Epub 2018 Aug 17.
PMID: 30118397DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Torunn Yock, MD
- Organization
- Massachusetts General, Hospital
Study Officials
- PRINCIPAL INVESTIGATOR
Torunn I Yock, MD
Massachusetts General Hospital
Publication Agreements
- PI is Sponsor Employee
- Yes
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Director, Pediatric Radiation Oncology
Study Record Dates
First Submitted
February 3, 2010
First Posted
February 5, 2010
Study Start
April 8, 2010
Primary Completion
November 1, 2021
Study Completion
November 1, 2021
Last Updated
August 13, 2025
Results First Posted
August 13, 2025
Record last verified: 2025-08