Proton Beam or Intensity-Modulated Radiation Therapy in Preserving Brain Function in Patients With IDH Mutant Grade II or III Glioma

May 21, 2026 updated by: NRG Oncology

A Phase II Randomized Trial of Proton Vs. Photon Therapy (IMRT) for Cognitive Preservation in Patients With IDH Mutant, Low to Intermediate Grade Gliomas

This randomized phase II clinical trial studies the side effects and how well proton beam or intensity-modulated radiation therapy works in preserving brain function in patients with IDH mutant grade II or III glioma. Proton beam radiation therapy uses tiny charged particles to deliver radiation directly to the tumor and may cause less damage to normal tissue. Intensity-modulated or photon beam radiation therapy uses high-energy x-ray beams shaped to treat the tumor and may also cause less damage to normal tissue. It is not yet known if proton beam radiation therapy is more effective than photon-based beam intensity-modulated radiation therapy in treating patients with glioma.

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

PRIMARY OBJECTIVES:

I. To determine whether proton therapy, compared to intensity-modulated radiation therapy (IMRT), preserves cognitive outcomes over time as measured by the Clinical Trial Battery Composite (CTB COMP) score (calculated from the Hopkins Verbal Learning Test Revised [HVLT-R]) Total Recall, HVLT-R Delayed Recall, HVLT-R Delayed Recognition, Controlled Oral Word Association (COWA) test, Trail Making Test (TMT) part A and part B.

SECONDARY OBJECTIVES:

I. To assess whether treatment with proton therapy preserves neurocognitive function as measured separately by each test, HVLT-R, TMT parts A & B, and COWA.

II. To document and compare treatment related symptoms, overall symptom impact, and disease related factor groupings, utilizing the M.D. Anderson Symptom Inventory Brain Tumor (MDASI-BT), for both treatment arms.

III. To assess whether treatment with proton therapy, compared to IMRT, results in superior quality of life as measured by the Linear Analog Scale Assessment (LASA) scale.

IV. To compare local control patterns of failure and overall and progression-free survival between the two treatment arms.

V. To assess adverse events. VI. To compare Illumnia MethylationEPIC beadchip array-derived IDH and 1p19q status determined centrally to that submitted by enrolling sites.

TERTIARY OBJECTIVES:

I. To assess the impact of chemotherapy use on cognitive outcomes, symptom outcomes and quality of life.

II. To assess dose-response relationships between neuro-anatomic dosimetry and cognitive outcomes within and between treatment arms.

III. To evaluate the association between tumor molecular status and cognition at baseline and within and between treatment arms over time.

IV. To assess patterns of failure and pseudo progression as a function of radiation delivery type and dose received.

V. To assess local control, overall survival and, progression free survival in IDH mutant grade II and III tumors.

VI. To collect blood samples for future studies seeking to correlate changes in peripheral blood biomarkers (genes, micro ribonucleic acid [RNA], proteins, lymphocyte count, melatonin, etc) and the study endpoints.

VII. To document and compare the impact of low to intermediate gliomas and therapy on patients' work and activity participation (The Work Productivity and Activity Impairment [WPAI:GH] Questionnaire: General Health version 2.0) as well as the relationship between changes in patients' work and activity participation and neurocognitive function and patient reported symptoms and interference.

OUTLINE: Patients are randomized to 1 of 2 treatment arms.

ARM I: Patients undergo photon-based IMRT once daily (QD), 5 days a week for 6 weeks for a total of 30 fractions. Beginning 28 days after completion of radiation therapy, patients receive standard of care temozolomide for 5 days. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression of unacceptable toxicity. Patients undergo magnetic resonance imaging (MRI) and collection of blood samples throughout the trial.

ARM II: Patients undergo proton beam radiation therapy QD, 5 days a week for 6 weeks for a total of 30 fractions. Beginning 28 days after completion of radiation therapy, patients receive standard of care temozolomide for 5 days. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression of unacceptable toxicity. Patients undergo MRI and collection of blood samples throughout the trial.

After completion of study treatment, patients are followed up at 6 and 12 months and then yearly for 10 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 (Estimated)

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.
120

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.
  • Phase 2

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
    • Alabama
      • Birmingham, Alabama, United States, 35233
        • University of Alabama at Birmingham Cancer Center
    • Florida
      • Boca Raton, Florida, United States, 33486
        • Boca Raton Regional Hospital
      • Miami, Florida, United States, 33176
        • Miami Cancer Institute
    • Georgia
      • Atlanta, Georgia, United States, 30308
        • Emory University Hospital Midtown
      • Atlanta, Georgia, United States, 30322
        • Emory University Hospital/Winship Cancer Institute
      • Atlanta, Georgia, United States, 30308
        • Emory Proton Therapy Center
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern University
      • Geneva, Illinois, United States, 60134
        • Northwestern Medicine Cancer Center Delnor
      • Warrenville, Illinois, United States, 60555
        • Northwestern Medicine Cancer Center Warrenville
    • Kansas
      • Kansas City, Kansas, United States, 66160
        • University of Kansas Cancer Center
      • Overland Park, Kansas, United States, 66210
        • University of Kansas Cancer Center-Overland Park
      • Westwood, Kansas, United States, 66205
        • University of Kansas Hospital-Westwood Cancer Center
    • Maine
      • Scarborough, Maine, United States, 04074
        • MaineHealth Maine Medical Center- Scarborough
    • Maryland
      • Baltimore, Maryland, United States, 21201
        • University of Maryland/Greenebaum Cancer Center
      • Baltimore, Maryland, United States, 21201
        • Maryland Proton Treatment Center
      • Bel Air, Maryland, United States, 21014
        • UM Upper Chesapeake Medical Center
      • Columbia, Maryland, United States, 21044
        • Central Maryland Radiation Oncology in Howard County
      • Glen Burnie, Maryland, United States, 21061
        • UM Baltimore Washington Medical Center/Tate Cancer Center
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Massachusetts General Hospital Cancer Center
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic in Rochester
    • Missouri
      • Kansas City, Missouri, United States, 64154
        • University of Kansas Cancer Center - North
      • Lee's Summit, Missouri, United States, 64064
        • University of Kansas Cancer Center - Lee's Summit
      • North Kansas City, Missouri, United States, 64116
        • University of Kansas Cancer Center at North Kansas City Hospital
      • Springfield, Missouri, United States, 65804
        • Mercy Hospital Springfield
      • St Louis, Missouri, United States, 63110
        • Washington University School of Medicine
    • New York
      • New York, New York, United States, 10016
        • Laura and Isaac Perlmutter Cancer Center at NYU Langone
    • Ohio
      • Cleveland, Ohio, United States, 44106
        • Case Western Reserve University
      • Parma, Ohio, United States, 44129
        • University Hospitals Parma Medical Center
      • Ravenna, Ohio, United States, 44266
        • University Hospitals Portage Medical Center
    • Oklahoma
      • Oklahoma City, Oklahoma, United States, 73104
        • University of Oklahoma Health Sciences Center
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • University of Pennsylvania/Abramson Cancer Center
    • Texas
      • Houston, Texas, United States, 77030
        • M D Anderson Cancer Center
    • Washington
      • Seattle, Washington, United States, 98195
        • University of Washington Medical Center - Montlake
      • Seattle, Washington, United States, 98133
        • FHCC at Northwest Hospital

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:

  • PRIOR TO STEP 1 REGISTRATION
  • Tumor tissue must be available for submission for central pathology review
  • Grade II and III gliomas IDH mutant gliomas including; diffuse astrocytoma, anaplastic astrocytoma, oligodendroglioma, anaplastic oligodendroglioma, oligoastrocytoma, anaplastic oligoastrocytoma
  • Documentation from the enrolling site confirming the presence of IDH mutation and 1p/19q status; the provided information must document assays performed in clinical laboratory improvement amendments (CLIA)-approved laboratories and be uploaded prior to Step 2 registration
  • Age >= 18
  • The trial is open to both genders
  • Only English or French speaking patients are eligible to participate as the cognitive assessments are only available in these languages
  • The patient or a legally authorized representative must provide study-specific informed consent prior to study entry
  • History and physical exam, and Karnofsky performance status of >= 70 within 30 days prior to registration
  • Absolute neutrophil count (ANC) >= 1,500 cells/mm^3 (within 60 days prior to registration)
  • Platelets >= 100,000 cells/mm^3 (within 60 days prior to registration)
  • Hemoglobin >= 10.0 g/dl (Note: the use of transfusion or other intervention to achieve hemoglobin [Hgb] >= 10.0 g/dl is acceptable) (within 60 days prior to registration)
  • Bilirubin =< 1.5 upper limit of normal (ULN) (within 60 days prior to registration)
  • Alanine aminotransferase (ALT) and aspartate aminotransferase (AST) =< 3 x ULN (within 60 days prior to registration)
  • Blood urea nitrogen (BUN) < 30 mg/dl (within 60 days prior to registration)
  • Serum creatinine < 1.5 mg/dl (within 60 days prior to registration)
  • Pre-operative MRI imaging of the brain available for radiation planning
  • Post-operative MRI imaging with contrast is mandatory obtained for radiation therapy planning; enrolling sites are not mandated although highly encouraged to obtain thin-slice (< 1.5 mm) 3 dimensional (D) pre and post contrast and axial T2/FLAIR sequences for planning purposes
  • Patients must be able to swallow capsules
  • PRIOR TO STEP 2 REGISTRATION
  • Histologically proven diagnosis of supratentorial, World Health Organization (WHO) grade II or III astrocytoma, oligodendroglioma or oligoastrocytoma, with IDH mutation confirmed by central review
  • The following baseline neurocognitive assessments must be completed and uploaded prior to Step 2 registration: HVLT-R (recall, delayed recall, and recognition), TMT Parts A and B, and COWA; the neurocognitive assessment will be uploaded into a folder in the NRG Medidata RAVE System for central evaluation; once the upload and scoring of the tools are complete, a notification will be sent within 3 business days to the Research Associate (RA) to proceed to Step 2; in order for the patient to be eligible, at least 5 of the 6 neurocognitive assessments must be able to be scored (i.e. free of any errors)
  • Completion of all items on the following baseline quality of life forms: MDASI-BT, LASA QOL, WPAI-GH and Employment Questionnaire; these quality of life forms will be required and data entered at step 2 registration
  • Financial clearance for proton therapy treatment prior step 2 registration
  • Women of childbearing age must have a negative serum pregnancy test within 14 days prior to step 2 registration

Exclusion Criteria:

  • Definitive clinical or radiologic evidence of metastatic disease; if applicable
  • Prior invasive malignancy (except non-melanomatous skin cancer) unless disease free for a minimum of 3 years; (for example, carcinoma in situ of the breast, oral cavity or cervix are permissible)
  • Prior cranial radiotherapy or radiotherapy to the head and neck where potential field overlaps would exist
  • Prior chemotherapy or radiotherapy for any brain tumor
  • Histologic diagnosis of glioblastoma (WHO grade IV) or pilocytic astrocytoma (WHO grade I)
  • Definitive evidence of multifocal disease
  • Planned use of cytotoxic chemotherapy during radiation (only adjuvant temozolomide therapy will be used on this protocol)
  • Patients with infra-tentorial tumors are not eligible
  • Prior history of neurologic or psychiatric disease believed to impact cognitive function
  • The use of memantine during or following radiation is NOT allowed

  • Severe, active co-morbidity defined as follows:

    • Unstable angina or congestive heart failure requiring hospitalization within 6 months prior to enrollment
    • Transmural myocardial infarction within the last 6 months prior to registration; evidence of recent myocardial infarction or ischemia by the findings of S-T elevations of >= 2 mm using the analysis of an electrocardiogram (EKG) performed within 28 days prior to registration (Note: EKG to be performed only if clinical suspicion of cardiac issue)
    • New York Heart Association grade II or greater congestive heart failure requiring hospitalization within 12 months prior to registration
    • Serious and inadequately controlled arrhythmia at step 2 registration
    • Serious or non-healing wound, ulcer or bone fracture or history of abdominal fistula, intra-abdominal abscess requiring major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to registration, with the exception of the craniotomy for surgical resection
    • Acute bacterial or fungal infection requiring intravenous antibiotics at the time of registration
    • Hepatic insufficiency resulting in clinical jaundice and/or coagulation defects; note, however, that laboratory tests for coagulation parameters are not required for entry into this protocol
    • Chronic obstructive pulmonary disease exacerbation or other respiratory illness requiring hospitalization or precluding study therapy at the time of registration
    • Human immunodeficiency virus (HIV) positive with CD4 count < 200 cells/microliter; acquired immune deficiency syndrome (AIDS) based upon current Centers for Disease Control and Prevention (CDC) definition; note, however, that HIV testing is not required for entry into this protocol
    • Any other severe immunocompromised condition
    • Active connective tissue disorders, such as lupus or scleroderma, that in the opinion of the treating physician may put the patient at high risk for radiation toxicity
    • End-stage renal disease (i.e., on dialysis or dialysis has been recommended)
    • Any other major medical illnesses or psychiatric treatments that in the investigator's opinion will prevent administration or completion of protocol therapy
  • Inability to undergo MRI with and without contrast (e.g. claustrophobia, non-MRI compatible implant or foreign body, gadolinium allergy or renal dysfunction preventing the patient from receiving gadolinium- institutional guidelines should be used to determine if patients are at risk for renal dysfunction); note that patients with severe claustrophobia are permitted on this study if they are willing and able to undergo MRI with adequate sedation or anesthesia
  • Patients known to have hypersensitivity to dacarbazine (DTIC) are not eligible

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: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel 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.
Active Comparator: Arm I (photon-based IMRT, temozolomide)
Patients undergo photon-based IMRT QD, 5 days a week for 6 weeks for a total of 30 fractions. Beginning 28 days after completion of radiation therapy, patients receive standard of care temozolomide for 5 days. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression of unacceptable toxicity. Patients undergo MRI and collection of blood samples throughout the trial.
Other: Laboratory Biomarker Analysis
Correlative studies
Other: Quality-of-Life Assessment
Ancillary studies
Other Names:
  • Quality of Life Assessment
Other: Questionnaire Administration
Ancillary studies
Procedure: Biospecimen Collection
Undergo collection of blood samples
Other Names:
  • Biological Sample Collection
  • Biospecimen Collected
  • Specimen Collection
Procedure: Magnetic Resonance Imaging
Undergo MRI
Other Names:
  • MRI
  • Magnetic Resonance
  • Magnetic Resonance Imaging Scan
  • Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance
  • MR
  • MR Imaging
  • MRI Scan
  • NMR Imaging
  • NMRI
  • Nuclear Magnetic Resonance Imaging
  • Magnetic Resonance Imaging (MRI)
  • sMRI
  • Magnetic resonance imaging (procedure)
  • MRIs
  • Structural MRI
Radiation: Intensity-Modulated Radiation Therapy
Undergo IMRT
Other Names:
  • IMRT
  • Intensity Modulated RT
  • Intensity-Modulated Radiotherapy
  • Radiation, Intensity-Modulated Radiotherapy
  • Intensity modulated radiation therapy (procedure)
Drug: Temozolomide
Drug
Other Names:
  • Temodar
  • SCH 52365
  • Temodal
  • Temcad
  • Methazolastone
  • RP-46161
  • Temomedac
  • TMZ
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-
  • M & B 39831
  • M and B 39831
  • Gliotem
  • Temizole
Experimental: Arm II (proton beam radiation therapy, temozolomide)
Patients undergo proton beam radiation therapy QD, 5 days a week for 6 weeks for a total of 30 fractions. Beginning 28 days after completion of radiation therapy, patients receive standard of care temozolomide for 5 days. Treatment repeats every 28 days for up to 12 courses in the absence of disease progression of unacceptable toxicity. Patients undergo MRI and collection of blood samples throughout the trial.
Other: Laboratory Biomarker Analysis
Correlative studies
Other: Quality-of-Life Assessment
Ancillary studies
Other Names:
  • Quality of Life Assessment
Other: Questionnaire Administration
Ancillary studies
Procedure: Biospecimen Collection
Undergo collection of blood samples
Other Names:
  • Biological Sample Collection
  • Biospecimen Collected
  • Specimen Collection
Procedure: Magnetic Resonance Imaging
Undergo MRI
Other Names:
  • MRI
  • Magnetic Resonance
  • Magnetic Resonance Imaging Scan
  • Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance
  • MR
  • MR Imaging
  • MRI Scan
  • NMR Imaging
  • NMRI
  • Nuclear Magnetic Resonance Imaging
  • Magnetic Resonance Imaging (MRI)
  • sMRI
  • Magnetic resonance imaging (procedure)
  • MRIs
  • Structural MRI
Radiation: Proton Beam Radiation Therapy
Undergo proton beam radiation therapy
Other Names:
  • Proton Radiation Therapy
  • PBRT
  • Proton
  • Proton EBRT
  • Proton External Beam Radiotherapy
  • Radiation, Proton Beam
  • PROTON Therapy
  • External beam radiation therapy protons (procedure)
  • External Beam Radiotherapy (protons)
Drug: Temozolomide
Drug
Other Names:
  • Temodar
  • SCH 52365
  • Temodal
  • Temcad
  • Methazolastone
  • RP-46161
  • Temomedac
  • TMZ
  • CCRG-81045
  • Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-
  • M & B 39831
  • M and B 39831
  • Gliotem
  • Temizole

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
Change in cognition as measured by the Clinical Trial Battery Composite (CTB COMP) score
Time Frame: Baseline to up to 10 years
Assessed with a general linear model with maximum likelihood estimation. Three models will be conducted. Baseline CTB COMP score, treatment arm, time, treatment by time interaction (if significant) and stratification factors will be included in the model for the primary endpoint. A second model will be built with these same variables and relevant covariates, such as total volume of intracranial disease, gross tumor volume (GTV) and clinical tumor volume (CTV) size, histology, anti-epileptic use, and disease response to therapy (as measured by Response Assessment in Neuro-Oncology [RANO] criteria). Other than baseline score CTB COMP, treatment arm, and time, only covariates with a p-value < 0.10 will be retained in the model. A third model will be conducted at 10 years using the additional time points of neurocognitive assessments.
Baseline to up to 10 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
Overall survival (OS)
Time Frame: From randomization to the date of death, assessed up to 10 years
OS will be estimated using the Kaplan-Meier method and compared between arms using the log rank test. Cox proportional hazards models will be used for OS adjusting for treatment arm and stratification factors.
From randomization to the date of death, assessed up to 10 years
Progression-free survival (PFS)
Time Frame: From date of randomization to date of progression or death, whichever occurs first, assessed up to 10 years
A confidence interval will be used to determine if the PFS rate in the proton arm is greater than that in the photon at 1 year. PFS will be estimated using the Kaplan-Meier method and compared between arms using the log rank test. Cox proportional hazards models will be used for PFS adjusting for treatment arm and stratification factors.
From date of randomization to date of progression or death, whichever occurs first, assessed up to 10 years
Cognition as measured individually by Hopkins Verbal Learning Test Revised (HVLT-R), Trail Making Test (TMT) parts A and B, and Controlled Oral Word Association (COWA)
Time Frame: Up to 10 years
The HVLT-R, TMT parts A & B, and COWA will be analyzed independently using a general linear model with maximum likelihood estimation. Standardized scores will be used.
Up to 10 years
Change in symptoms as measured by M.D. Anderson Symptom Inventory Brain Tumor (MDASI-BT)
Time Frame: Baseline to up to 10 years
The change from baseline to each follow-up time point (calculated as baseline score subtracted from follow-up score) will be compared between treatment arms using a t-test, or Wilcoxon test if the data is not normally distributed. A reduced one-sided significance level will be used for the multiple comparisons in the MDASI-BT using the Bonferroni adjustment (alpha=0.017 for disease related factors and alpha=0.025 for treatment related symptoms and overall impact). A general linear model with maximum likelihood estimation will be used to assess symptom trends across time. Baseline score, treatment arm, time, treatment by time interaction (if significant), stratification factors, and relevant covariates, such as total volume of, GTV and CTV size, histology, anti-epileptic use, and disease response to therapy (as measured by RANO criteria) will be included as covariates in each model.
Baseline to up to 10 years
Change in quality of life as measured by the Linear Analog Scale Assessment (LASA) scale
Time Frame: Up to 10 years
The change from baseline to each follow-up time point (calculated as baseline score subtracted from follow-up score) will be compared between treatment arms using a t-test, or Wilcoxon test if the data is not normally distributed. A one-sided alpha=0.05 will be used for the LASA. A general linear model with maximum likelihood estimation will be used to assess symptom and QOL trends across time. Baseline score, treatment arm, time, treatment by time interaction (if significant), stratification factors, and relevant covariates, such as total volume of, GTV and CTV size, histology, anti-epileptic use, and disease response to therapy (as measured by RANO criteria) will be included as covariates in each model. Other than baseline score, treatment arm, and time, only covariates with a p-value < 0.10 will be retained in the model.
Up to 10 years
Local control as assessed by Response Assessment in Neuro-Oncology (RANO) criteria
Time Frame: Up to 10 years
Local control will be estimated using cumulative incidence, treating death prior to an event as a competing risk. Gray's test will be used to compare local control rates between arms. Cause-specific Cox proportional hazards models will be used for local control, adjusting for treatment arm and stratification factors. A two-sided significance level of 0.05 will be used for comparisons between arms.
Up to 10 years
Incidence of adverse events (AEs) graded according to the National Cancer Institute's Common Terminology for Adverse Events version 5.0
Time Frame: Up to 10 years
Counts of all AEs by grade will be provided by treatment arm. Counts and frequencies will be provided for the worst grade AE experienced by the patient by treatment arm. Grade 3+ treatment related AEs will be compared between arms using a chi-square test, or Fisher's exact test if cell frequencies are < 5, at the one-sided 0.05 significance level.
Up to 10 years
IDH mutation as assessed by sequencing and 1p19q status as assessed by fluorescence in situ hybridization
Time Frame: Baseline
A single test will be done for both IDH and 1p19q testing centrally while sites will perform a separate test for IDH and 1p19q. The results from the central and site testing will be compared using the kappa statistic. The asymptotic test of H0: k=0 will be performed using the Z-statistic to determine the strength of agreement. Concordance and discordance rates will be tabulated.
Baseline

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Assessment of dose-response relationships
Time Frame: Up to 10 years
The dose-response relationship between cognition, using the CTB COMP and each individual test score, and neuro-anatomic dosimetry, including the hippocampus and whole brain, will be assessed. The decline, as calculated using the Reliable Change Index, will be used to determine neurocognitive impairment. The dose-response curve will be modeled using a non-linear model.
Up to 10 years
Assessment of tumor molecular status
Time Frame: Up to 10 years
Cognition, using the CTB COMP and each individual test score, will be compared by 1p19q status. A general linear model using maximum likelihood estimation will be built for CTB COMP and each individual test score over time including baseline test score, 1p19q status, treatment arm, and stratification factors.
Up to 10 years
Impact of chemotherapy use on cognition assessed by Clinical Trial Battery Composite (CTB COMP) and each individual test score
Time Frame: Up to 10 years
Cognition will be compared between patients who have completed chemotherapy per protocol and those who have not.
Up to 10 years
Assessment of patterns of failure and pseudoprogression as a function of radiation delivery type
Time Frame: Up to 10 years
Cox models will also be built to assess the effect of radiation delivery type on patterns of failure while adjusting for stratification factors. Patterns of failure refer to local failure (within high dose), marginal failure (at edge of treatment field) or distant failure (outside radiation volume). The association of pseudoprogression, a yes/no variable, and radiation delivery type at each follow-up time point will be assessed using a Chi-square test or Fisher's exact test if the cell size is < 5. Pseudoprogression by treatment arm at each follow-up time point will also be assessed using a Chi-square test or Fisher's exact test if the cell size is < 5.
Up to 10 years
Work and activity participation as measured by the Work Productivity and Activity Impairment Questionnaire: General Health version 2.0 (WPAI:GH)
Time Frame: Up to 2 years
The distributions of each item and outcome measure of the WPAI will be tabulated at each time point. The association between each of the four WPAI outcomes and NCF, as measured by the CTB COMP score and each NCF test separately, and symptoms, as measured by the MDASI-BT total symptom burden score and total interference score, will be assessed using Pearson correlation coefficients at each time point.
Up to 2 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.
NRG Oncology

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.
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: David R Grosshans, NRG Oncology

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)

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.
January 23, 2018

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.
July 15, 2026

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.
June 1, 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).
June 5, 2017

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.
June 6, 2017

First Posted (Actual)

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.
June 8, 2017

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.
May 26, 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.
May 21, 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.
July 1, 2025

More Information

Terms related to this study

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.
  • NRG-BN005 (Other Identifier: CTEP)
  • U10CA180868 (U.S. NIH Grant/Contract)
  • NCI-2017-00203 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

NCI is committed to sharing data in accordance with NIH policy. For more details on how clinical trial data is shared, access the link to the NIH data sharing policy page.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

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