NCT02709226

Brief Summary

Background: A glioblastoma is a tumor in the brain. It is treated with surgery, chemotherapy and radiation therapy. However, most people s tumors come back after therapy. When the tumor grows back, surgery or chemotherapy may not be possible or may no longer work. Repeat radiation therapy or re-irradiation, is an option for treating these tumors when they regrow. Objective: To find out the safety and highest tolerated dose of re-irradiation for people who have recurrent glioblastoma. Eligibility: People ages 18 50 who have glioblastoma that has been treated with radiation but has regrown. Design: Participants will be screened with: Medical history Physical exam MRI of the brain: They will lie in a machine that takes pictures of the brain. Participants will have baseline tests before they start therapy. These will include: Blood tests Neuropsychological tests: These test things like memory, attention, and thinking. Quality of life questionnaire Eye and hearing tests Participants will get a CT of the brain prior to radiation start in order to plan the radiation treatment. Once the plan is completed, they will receive radiation once a day Monday Friday for a total of 10 17 treatments. They will lie on their back for about 10 minutes while they get the treatment. Participants will be monitored for side effects. After they finish treatment, participants will have visits 1, 2, and 3 months later. Then they will have them every 2 months for 3 years. These will include: Medical history Physical exam Blood tests MRI of the brain. Quality of life questionnaire Neuropsychological tests (at some visits) After 3 years, participants will be contacted by phone each month.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
17

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Jun 2016

Longer than P75 for phase_1

Geographic Reach
1 country

1 active site

Status
completed

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

March 15, 2016

Completed
1 day until next milestone

First Posted

Study publicly available on registry

March 16, 2016

Completed
3 months until next milestone

Study Start

First participant enrolled

June 15, 2016

Completed
6.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 16, 2022

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 19, 2023

Completed
Last Updated

December 31, 2025

Status Verified

December 16, 2025

Enrollment Period

6.5 years

First QC Date

March 15, 2016

Last Update Submit

December 30, 2025

Conditions

Keywords

Brain TumorAstrocytomaGBMRadiation Therapy

Outcome Measures

Primary Outcomes (1)

  • To determine maximum tolerated re-irradiation dose (MTD).

    The MTD will be based on the assessment of DLT within one month following the re-irradiation, and will be defined as the dose level at which less than one-third of patients (0/3 or 0-1/6 patients) treated at that dose experience a DLT, with the next higher dose level demonstrating a one-third or greater number of patients (\>= 2/3 or \>= 2/6 patients) having DLT.

    1 month after completion of re-irradiation

Secondary Outcomes (3)

  • To determine QOL and impact on neurocognition in the setting of re-irradiation of recurrent glioblastoma

    baseline and at each visit

  • To determine progression free survival and overall survival.

    time of progression; time of death

  • To determine late toxicity secondary to re-irradiation

    completion of study

Study Arms (1)

1/Radiation

EXPERIMENTAL

Dose escalation is as follows: dose level 1 (DL1) 3.5 Gy x 10; dose level 2 (DL2) 3.5 Gy x 12; dose level 3 (DL3) 3.5 Gy x 14. If 2 DLTs are observed in the second dose level a step down dose of 3.0 Gy x 14 fractions will be tested. If 2 DLTs are observed in the third dose level a step down dose of 3.0 Gy x 17 fractions will be tested. The study will have 3 planned re-irradiation dose levels, with 1 to 6 patients per dose level using the 3+3 design to define the MTD. The number of patients may be increased to 9 total patients at the MTD ( provided no DLT) with a maximum of 21 evaluable patients enrolled.

Radiation: Radiation

Interventions

RadiationRADIATION

Radiation therapy will be administered daily Monday-Friday at NCI, ROB unless the treatment schedule requires amendment in the event of inclement weather or federal holidays. Radiation therapy dose will be administered as per on consecutive treatment days, 5 fractions per week via a linear accelerator using 6 MV photons or greater. Dose escalation is as follows: dose level 1 (DL1) 3.5 Gy x 10; dose level 2 (DL2) 3.5 Gy x 12; dose level 3 (DL3) 3.5 Gy x 14. If 2 DLTs are observed in the second dose level a step down dose of 3.0 Gy x 14 fractions will be tested. If 2 DLTs are observed in the third dose level a step down dose of 3.0 Gy x 17 fractions will be tested. The study will have 3 planned re-irradiation dose levels, with 1 to 6 patients per dose level using the 3+3 design to define the MTD. The number of patients may be increased to 9 total patients at the MTD ( provided no DLT) with a maximum of 21 evaluable patients enrolled.

1/Radiation

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Histological diagnosis
  • Previous histologic diagnosis of glioblastoma, transformation to glioblastoma or gliosarcoma established by biopsy or resection prior to enrollment as evident on NIH or outside pathology.
  • Patients must be age greater than or equal to 18.
  • Patients should have a KPS greater than or equal to 70%
  • Prior standard radiation therapy to a dose ranging from 50 to 60 Gy at 1.8 to 2 Gy per fraction.
  • Patients must be more than or equal to 14 days from previous cytotoxic treatment.
  • Concurrent therapy
  • The concurrent use of bevacizumab is allowed if previously initiated for tumor progression or symptomatic management. Prior temozolomide or other cytotoxic chemotherapy is allowed.
  • Ability of subject or Legally Authorized Representative (LAR) to understand and the willingness to sign a written informed consent document.
  • Women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry and for the duration of study participation. Should a woman become pregnant or suspect she is pregnant while she or her partner is participating in this study, she should inform her treating physician immediately.

You may not qualify if:

  • Prior therapy \< than 2 weeks since surgical re-resection or biopsy
  • Pregnant or breast feeding females are excluded due to potential mutagenic effects on the developing fetus or newborn
  • Preexisting grade 3 or 4 nervous system disorder as per CTCAE Version 4.0
  • Clinically significant unrelated systemic illness (including but not limited to active life threatening infection, cardiac or neurologic events, current hospital admission for a coexisting comorbid illness), which would make it impossible for the patient to tolerate re-irradiation or systemic chemotherapy or likely to interfere with the results.
  • Patients exhibiting baseline grade 3 or 4 by CTCAE criteria are excluded due to difficulty in assigning these to the study intervention as treatment related DLT.
  • Patients with preexisting known or suspected radiation sensitivity syndromes will be excluded due to potential confounding effect on outcome.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

Location

Related Links

MeSH Terms

Conditions

GlioblastomaGliosarcomaBrain NeoplasmsAstrocytoma

Interventions

Radiation

Condition Hierarchy (Ancestors)

GliomaNeoplasms, NeuroepithelialNeuroectodermal TumorsNeoplasms, Germ Cell and EmbryonalNeoplasms by Histologic TypeNeoplasmsNeoplasms, Glandular and EpithelialNeoplasms, Nerve TissueCentral Nervous System NeoplasmsNervous System NeoplasmsNeoplasms by SiteBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Intervention Hierarchy (Ancestors)

Physical Phenomena

Study Officials

  • Kevin A Camphausen, M.D.

    National Cancer Institute (NCI)

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SEQUENTIAL
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 15, 2016

First Posted

March 16, 2016

Study Start

June 15, 2016

Primary Completion

December 16, 2022

Study Completion

July 19, 2023

Last Updated

December 31, 2025

Record last verified: 2025-12-16

Data Sharing

IPD Sharing
Will share

All IPD recorded in the medical record will be shared with intramural investigators upon request.

Shared Documents
STUDY PROTOCOL, SAP, ICF
Time Frame
Clinical data available during the study and indefinitely.
Access Criteria
Clinical data will be made available via subscription to BTRIS and with the permission of the study PI.

Locations