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Hypofractionation Trial of Re-irradiation in Good Prognosis Recurrent Glioblastoma

NCT06344130 · Status: RECRUITING · Phase: PHASE1 · Type: INTERVENTIONAL · Enrollment: 28

Last updated 2026-04-09

No results posted yet for this study

Summary

Background:

Glioblastoma (GBM) is a cancer of the brain. Current survival rates for people with GBM are poor; survival ranges from 5.2 months to 39 months. Most tumors come back within months or years after treatment, and when they do, they are worse: Overall survival drops to less than 10 months. No standard treatment exists for people whose GBM has returned after radiation therapy.

Objective:

To find a safe schedule for using radiation to treat GBM tumors that returned after initial radiation treatment.

Eligibility:

People aged 18 years and older with grade 4 GBM that returned after initial radiation treatment.

Design:

Participants will be screened. They will have a physical exam with blood tests. A sample of tumor tissue may be collected.

Participants will undergo re-irradiation planning: They will wear a plastic mask over their head during imaging scans. These scans will pinpoint the exact location of the tumor. This spot will be the target of the radiation treatments.

Participants will undergo radiation treatment 4 times per week. Some people will have this treatment for 3 weeks, some for 2 weeks, and some for 1 week. Blood tests and other exams will be repeated at each visit.

Participants will complete questionnaires about their physical and mental health. They will answer these questions before starting radiation treatment; once a week during treatment; and at intervals for up to 3 years after treatment ends.

Participants will have follow-up visits 1 month after treatment and then every 2 months for 6 months. Follow-up clinic visits will continue up to 3 years. Follow-ups by phone or email will continue an additional 2 years.

Conditions

Interventions

RADIATION

Radiation Therapy

Radiation therapy will be administered via a linear accelerator using 6 megavoltage (MV) photons or greater.

Sponsors & Collaborators

  • National Cancer Institute (NCI)

    lead NIH

Principal Investigators

  • Peter GK Mathen, M.D. · National Cancer Institute (NCI)

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Max Age
120 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2024-10-01
Primary Completion
2027-12-31
Completion
2027-12-31

Countries

  • United States

Study Locations

More Related Trials

Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT06344130 on ClinicalTrials.gov