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Stereotactic Biopsy Split-Course Radiation Therapy in Diffuse Midline Glioma, SPORT-DMG Study | Clinical Trials | Clareo Health

RECRUITINGPHASE2

Stereotactic Biopsy Split-Course Radiation Therapy in Diffuse Midline Glioma, SPORT-DMG Study

Stereotactic Biopsy Split-Course Radiation Therapy - Diffuse Midline Glioma (SPORT-DMG)

NCT05077735•Mayo Clinic

View on ClinicalTrials.gov

Summary

This phase II trial studies the clinical outcomes of hypofractionated radiation therapy in patients with diffuse midline gliomas. This study aims to change the way radiation is delivered, from giving 6 weeks of radiation all at once to giving 2 weeks of radiation. This may determine if there is a difference in the outcome of the treatment, and most importantly, the patients' quality of life.

Detailed Description

PRIMARY OBJECTIVE: I. To determine that 10-month overall survival (OS) rate for the hypofractionated radiation course of 25 Gy in 10 fractions in patients with diffuse midline glioma of the pons isn't inferior to the historical control (survival rate of 50% at 10 months) based on the current standard of care (54 GY in 30 fractions). SECONDARY OBJECTIVES: I. To evaluate the quality of life outcomes for patients with diffuse midline gliomas of the pons. II. To estimate the time to progression after the second hypofractionated radiation course of 25 Gy in 10 fractions in patients with diffuse midline glioma of the pons, calculated from date of diagnosis. III. To estimate progression free survival intervals for patients after each hypofractionated radiation treatment course. IV. To evaluate the quality of life outcomes for parents of patients =\< 18 years with the Functional Assessment of Cancer Therapy General (FACT-G) Family/Caregiver Questionnaire. V. To estimate the overall survival for patients with diffuse midline gliomas of the pons treated with planned multi-course hypofractionated radiation courses. VI. To report toxicities associated with hypofractionated, planned, multi-course radiation treatment for diffuse midline glioma of the pons. OUTLINE: Patients undergo hypofractionated radiation therapy (RT) over 10 fractions. Patients who experience progression undergo up to 2 retreatment courses. Patients undergo magnetic resonance imaging (MRI) and positron emission tomography- computed tomography (PET-CT) scan throughout the study. After completion of study treatment, patients are followed up at 1 month, every 2 months for year 1, every 3 months for year 2, then every 6 months for year 3.

Eligibility

Age

1 - No limit years

Sex

ALL

Healthy Volunteers

Inclusion Criteria

•Age \>= 1 year(s) old (no maximum age)
•Radiologic appearance of diffuse midline glioma of the pons, including diffuse infiltration of \>= 50% of the pons on MRI, with or without extension to the midbrain and/or medulla oblongata with at least 1 of the 3 brainstem symptoms (cranial nerve deficit, long tract sign, or cerebellar sign)
•* If all features of this clinicoradiologic criteria are met, then patients can continue on protocol with or without a biopsy
•* If all features of this clinicoradiologic criteria are not met, patients must receive a brainstem lesion biopsy to be treated on protocol. If this cannot be completed, patients will be withdrawn from the study
•* If biopsy has already been completed at an outside institution, the outside pathology report will be reviewed ahead of trial enrollment. The pathology specimen will then be sent to Mayo Clinic for further review, but will not delay study enrollment
•Able to undergo MRI Brain
•Negative urine pregnancy test completed =\< 7 days prior to registration, for women of childbearing potential only
•Primary language of English or Spanish for patients and their caregiver
•Patient or caregiver willing and able to provide written informed consent
•Caregiver able to complete questionnaires by themselves or with assistance
+1 more criteria

Exclusion Criteria

•Any patient who has received previous radiation to the brain
•Any patient who has received previous chemotherapy
•Any patient with a diagnosis of neurofibromatosis type 1 or 2 (NF1 or NF2)
•Any of the following:
•* Pregnant women
•* Nursing women
•* Women of childbearing potential who are unwilling to employ adequate contraception
•Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens
•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
•Other active malignancy =\< 5 years prior to registration. EXCEPTIONS: Non-melanotic skin cancer, breast cancer, prostate cancer, well-differentiated thyroid cancer, carcinoma-in-situ of the cervix
+2 more criteria

Locations (2)

Mayo Clinic Hospital in Arizona

Phoenix, Arizona, United States

Mayo Clinic in Rochester

Rochester, Minnesota, United States

Key Dates

Start Date

October 11, 2021

Primary Completion Date

October 15, 2027

Completion Date

October 15, 2027

Last Updated

January 20, 2026

Enrollment

ESTIMATED participants

Conditions

Diffuse Midline Glioma, H3 K27M-Mutant

Interventions

Hypofractionated Radiation Therapy

RADIATION

Questionnaire Administration

OTHER

Magnetic Resonance Imaging

PROCEDURE

Positron Emission Tomography and Computed Tomography Scan

PROCEDURE

Contacts

Clinical Trials Referral Office

CONTACT

855-776-0015 mayocliniccancerstudies@mayo.edu

Targeted Pediatric High-Grade Glioma Therapy

NCT05839379

High Grade GliomaDiffuse Intrinsic Pontine Glioma+7 more

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RECRUITINGPHASE1

rHSC-DIPGVax Plus Checkpoint Blockade for the Treatment of Newly Diagnosed DIPG and DMG

NCT04943848

Diffuse Intrinsic Pontine GliomaDiffuse Midline Glioma, H3 K27M-Mutant

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Data Source & Attribution

This clinical trial information is sourced from ClinicalTrials.gov, a service of the U.S. National Institutes of Health.

ClinicalTrials.gov last update: January 20, 2026Data synced to Clareo: March 29, 2026

Modifications: This data has been reformatted for display purposes. Eligibility criteria have been parsed into inclusion/exclusion sections. Location data has been geocoded to enable distance-based search. For the authoritative and most current information, please visit ClinicalTrials.gov.

Neither the United States Government nor Clareo Health make any warranties regarding the data. Check ClinicalTrials.gov frequently for updates.

View ClinicalTrials.gov Terms and Conditions

Stereotactic Biopsy Split-Course Radiation Therapy in Diffuse Midline Glioma, SPORT-DMG Study

Inclusion Criteria

Exclusion Criteria

Targeted Pediatric High-Grade Glioma Therapy

rHSC-DIPGVax Plus Checkpoint Blockade for the Treatment of Newly Diagnosed DIPG and DMG

Observational Study for Assessing Treatment and Outcome of Patients With Primary Brain Tumours Using cIMPACT-NOW and 2021 WHO Classification

CAR T Cells to Target GD2 for DMG

Adavosertib and Local Radiation Therapy in Treating Children With Newly Diagnosed Diffuse Intrinsic Pontine Gliomas