Biologically-Adapted, Dose-Escalated Radiotherapy for the Treatment of Ewing Sarcoma, BEAR Trial

NANot yet recruitingINTERVENTIONAL
Enrollment

141

Participants

Timeline

Start Date

October 1, 2025

Primary Completion Date

October 31, 2029

Study Completion Date

October 31, 2029

Conditions
Ewing SarcomaRound Cell Sarcoma With EWSR1-non-ETS Fusion
Interventions
PROCEDURE

Biospecimen Collection

Undergo blood sample collection

DRUG

Chemotherapy

Given chemotherapy

PROCEDURE

Computed Tomography

Undergo CT or PET/CT

PROCEDURE

Conventional Radiotherapy

Undergo conventional radiotherapy

PROCEDURE

Definitive Surgical Resection

Undergo definitive surgical resection

RADIATION

Dose-escalated Radiation Therapy

Undergo hypofractionated or conventional radiotherapy

OTHER

Electronic Health Record Review

Ancillary studies

RADIATION

External Beam Radiation Therapy

Undergo definitive radiotherapy

RADIATION

Hypofractionated Radiation Therapy

Undergo hypofractionated radiation therapy

PROCEDURE

Magnetic Resonance Imaging

Undergo MRI

PROCEDURE

Positron Emission Tomography

Undergo PET/CT

OTHER

Questionnaire Administration

Ancillary studies

RADIATION

Radiation Therapy

Undergo hypofractionated or conventional standard radiotherapy

Trial Locations (1)

55905

Mayo Clinic in Rochester, Rochester

Sponsors

Lead Sponsor

All Listed Sponsors
lead

Mayo Clinic

OTHER