AzTrials
AzTrials

GlioblastomaPhase 2NCT05781321

Short Course Radiotherapy for the Treatment of Patients With Glioblastoma, SAGA Study

A Phase 2 study testing Accelerated Hypofractionated Radiation Therapy, Computed Tomography and Fluorodopa F 18 in people with Glioblastoma, run by Mayo Clinic at 8 sites in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
Search all trials

Trial summary

This phase II trial compares the effect of short course radiotherapy (RT) to standard course RT for the treatment of patients diagnosed with glioblastoma (GBM). The researchers want to learn whether the shorter course treatment is non-inferior (not worse than the standard of care), for patients with GBM. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Glioblastoma
What is being tested?
Accelerated Hypofractionated Radiation Therapy, Computed Tomography and Fluorodopa F 18
Could I receive a placebo?
No, everyone receives an active treatment
How many people
170 participants
Where
8 sitesUnited States
Study dates
23 Mar 2023to 30 Nov 2028
Phase
Phase 2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age >= 18 years
  • Histological and/or molecular confirmation of glioblastoma
  • Eastern Oncology Group (ECOG) performance status (PS) =< 3
  • Ability to complete questionnaire(s) by themselves or with assistance
  • Provide written informed consent or have a legally authorized representative (LAR) who is responsible for the care and well-being of the potential study participant, provide consent
  • Willing to return to enrolling institution for follow-up either in-person or by video visit
  • Postoperative/post-biopsy tumor plus surgical bed size =< 6 cm in maximum diameter. This measurement includes both the enhancing region identified via T1 MRI with contrast, as well as the surgical cavity

Who cannot join

  • Unable to undergo MRI scans with contrast
  • Unable to undergo an 18F-DOPA-PET scan (e.g., Parkinson's Disease, taking carbidopa/levodopa and/or less than 48 hours from discontinuance)
  • Any of the following:
  • Pregnant women
  • Nursing women
  • Men or women of childbearing potential who are unwilling to employ adequate contraception
Show all 9Show fewer
  • Tumors with IDH mutation
  • Previous brain radiation therapy
  • Patients who will not receive any radiation treatment or who will receive radiation treatment elsewhere (Note: radiotherapy can be given on the trial at Mayo Clinic facilities in Rochester, Arizona, or Florida, as well as at the Mayo Clinic Health System sites). Temozolomide, however, can be provided by another institution

Trial locations and contacts

8 sites in 1 country.

8 sites in 1 country

United States8 sites
  • Mayo Clinic Health System in Albert Lea

    Albert Lea, Minnesota, 56007

  • Mayo Clinic Health System-Eau Claire

    Eau Claire, Wisconsin, 54701

  • Mayo Clinic in Florida

    Jacksonville, Florida, 32224-9980

  • Mayo Clinic Health System-Franciscan Healthcare

    La Crosse, Wisconsin, 54601

  • Mayo Clinic Health Systems-Mankato

    Mankato, Minnesota, 56001

  • Mayo Clinic Radiation Therapy - Northfield

    Northfield, Minnesota, 55057

  • Mayo Clinic in Rochester

    Rochester, Minnesota, 55905

  • Mayo Clinic in Arizona

    Scottsdale, Arizona, 85259

Other trials in United States

About this study

Official title: Stereotactic Accelerated Radiotherapy in GlioblastomA (SAGA)

This phase II trial compares the effect of short course radiotherapy (RT) to standard course RT for the treatment of patients diagnosed with glioblastoma (GBM). The researchers want to learn whether the shorter course treatment is non-inferior (not worse than the standard of care), for patients with GBM. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. Short course radiotherapy delivers higher doses of radiation over a shorter period of time and may kill more tumor cells and have fewer side effects.

Read the detailed description

PRIMARY OBJECTIVE:

  1. To demonstrate non-inferior 12-month overall survival (OS) of patients with GBM treated with dose escalated hypofractionated radiotherapy compared to standard of care.

SECONDARY OBJECTIVES:

  1. To demonstrate the safety of short-course radiotherapy via physician-reported grade (G) 3+ toxicity.

II. To explore patient-reported outcomes to demonstrate favorable quality of life with short-course radiotherapy for GBM.

III. To analyze the impact of shortening the treatment duration on treatment related lymphopenia and absolute lymphocyte counts.

EXPLORATORY OBJECTIVES:

  1. To determine the cost-effectiveness of the 5-fraction treatment regimen compared to standard of care.

II. To explore the impact on the immune system with the 5-fraction treatment regimen. Immune phenotyping will be assessed by Flow Cytometry and cytometry by flight (CyTOF).

III. To analyze series of cytokine levels over time. IV. To assess patterns of failure, specifically focusing on differences in volume delineation via Fluorodopa F 18 (FDOPA) and magnetic resonance imaging (MRI) and recurrences in-field versus (vs.) out of field.

  1. To conduct a subgroup analysis for just patients =< 65 cc. VI. To conduct a subgroup analysis for just patients with and without tumor treating fields.

VII. To analyze patient demographic data compared to historical controls to determine whether the short-course treatment regimen improves access to underserved populations.

OUTLINE: Patients are randomized to 1 of 2 arms.

ARM A: Patients undergo short course RT for 5-10 fractions over 1-2 weeks on study. Patients also receive temozolomide orally (PO) on days 1-5 every 28 days during radiation therapy. Starting one month post-radiation, patients continue temozolomide on days 1-5 every 28 days for up to 5 adjuvant cycles in the absence of disease progression or unacceptable toxicity.

ARM B: Patients undergo standard course RT for 15-30 fractions over 3-6 weeks on study. Patients also receive temozolomide PO daily (QD) concurrently with radiation therapy and for up to 6 adjuvant cycles in the absence of disease progression or unacceptable toxicity.

All patients undergo positron emission tomography/computed tomography (PET/CT) with 18-F-DOPA administered intravenously (IV) prior to RT on study, and undergo MRI prior to RT and throughout the trial. Patients may optionally undergo blood sample collection during screening and on the trial.

After completion of study treatment, patients are followed up every 2 months for the first year, every 3 months for the second year, and every 4 months for the third year. After 3 years, clinical outcomes are monitored at least once a year until 5 years after treatment.

Conditions
Glioblastoma
Being tested
Accelerated Hypofractionated Radiation Therapy, Computed Tomography, Fluorodopa F 18, Magnetic Resonance Imaging, Positron Emission Tomography
Medical subject headings
Glioblastoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Accelerated Hypofractionated Radiation TherapyRadiation

    Also called AHF-RT, AHRT

    Undergo short course RT

  • Computed TomographyProcedure or surgery

    Also called CAT, CAT Scan, Computed Axial Tomography, Computerized Axial Tomography

    Undergo CT simulation

  • Fluorodopa F 18Drug

    Also called (18F)FDOPA, 18F-DOPA, 18F-FDOPA, 3-(2-Fluoro-(sup 18)F-4,5-dihydroxyphenyl)-L-alanine

    Given IV

  • Magnetic Resonance ImagingProcedure or surgery

    Also called Magnetic Resonance, Magnetic Resonance Imaging Scan, Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance, MR

    Undergo MRI

  • Positron Emission TomographyProcedure or surgery

    Also called Medical Imaging, Positron Emission Tomography, PET, PET Scan, Positron Emission Tomography Scan

    Undergo PET

  • Quality-of-Life AssessmentOther

    Ancillary studies

  • Questionnaire AdministrationOther

    Complete questionnaires

  • Radiation TherapyRadiation

    Also called Cancer Radiotherapy, ENERGY_TYPE, Irradiate, Irradiated

    Undergo standard course RT

  • TemozolomideDrug

    Also called CCRG-81045, Gliotem, Imidazo[5,1-d]-1,2,3,5-tetrazine-8-carboxamide, 3, 4-dihydro-3-methyl-4-oxo-, M & B 39831

    Given PO

  • Biospecimen CollectionProcedure or surgery

    Also called Biological Sample Collection, Biospecimen Collected, Specimen Collection

    Undergo blood sample collection

Study groups in NCT05781321
Study groupRoleWhat they receive
Arm A (short course RT)ExperimentalPatients undergo short course RT for 5-10 fractions over 1-2 weeks on study. Patients also receive temozolomide PO on days 1-5 every 28 days during radiation therapy. Starting one month post-radiation, patients continue temozolomide on days 1-5 every 28 days for up to 5 adjuvant cycles in the absence of disease progression or unacceptable toxicity. Patients undergo PET/CT with 18-F-DOPA administered IV prior to RT on study, and undergo MRI prior to RT and throughout the trial. Patients may optionally undergo blood sample collection during screening and on the trial.
Receives: Radiation: Accelerated Hypofractionated Radiation Therapy; Procedure: Computed Tomography; Drug: Fluorodopa F 18; Procedure: Magnetic Resonance Imaging; Procedure: Positron Emission Tomography; Other: Quality-of-Life Assessment; Other: Questionnaire Administration; Drug: Temozolomide; Procedure: Biospecimen Collection
Arm B (standard course RT)Active comparatorPatients undergo standard course RT for 15-30 fractions over 3-6 weeks on study. Patients also receive temozolomide PO QD concurrently with radiation therapy and for up to 6 adjuvant cycles in the absence of disease progression or unacceptable toxicity. Patients undergo PET/CT with 18-F-DOPA administered IV prior to RT on study, and undergo MRI prior to RT and throughout the trial. Patients may optionally undergo blood sample collection during screening and on the trial.
Receives: Procedure: Computed Tomography; Drug: Fluorodopa F 18; Procedure: Magnetic Resonance Imaging; Procedure: Positron Emission Tomography; Other: Quality-of-Life Assessment; Other: Questionnaire Administration; Radiation: Radiation Therapy; Drug: Temozolomide; Procedure: Biospecimen Collection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Proportion of patients alive [overall survival (OS)] at 12 months

    OS is defined as the time from study registration to death due to any cause.

    Measured: Up to 12 months after enrollment

Secondary outcomes (4)
  1. Proportion of patients whose radiation oncologist reported a grade 3+ toxicity

    Pretreatment symptoms/conditions will be graded at enrollment by the radiation oncology team and updated at each evaluation. Adverse Events will be calculated using the NCI Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

    Measured: 30-, 90-, and 180-days post-radiotherapy (RT)

  2. Quality of life: EORTC QLQ-C30

    Assessed using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire (EORTC QLQ-C30), a 30 item questionnaire used to assess quality of life in cancer patients. Questions are answered using a 4-point Likert scale where 1=not at all and 4=very much, except for two items which use a 7-point scale where 1=very poor and 7=excellent. Higher scores on the questions answered 1-4 indicate more severe symptoms and greater difficulty. Higher scores on the 1-7 scales indicate better overall health and quality of life.

    Measured: From baseline up to 3 years

  3. Quality of life: EORTC QLQ-BN20

    Assessed using the European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire - Brain Neoplasm (QLQ-BN20), which consists of 20 questions answered using a 4-point Likert scale where 1=not at all and 4=very much. Higher scores reflect more severe symptoms.

    Measured: From baseline up to 3 years

  4. Lymphocyte count

    Assessed by blood test, lymphocyte count will be compared between arms by change in count from pretreatment to end of RT.

    Measured: From baseline up to 3 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted23 Mar 2023
  2. Study start23 Mar 2023
  3. Primary completion30 Nov 2026 (estimated)
  4. Study completion30 Nov 2028 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
170 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05781321
Sponsor's protocol ID
GMROR2261
Other IDs
NCI-2023-01559, GMROR2261, 22-006990
Status last verified
Jul 2026
First submitted
27 Feb 2023
Last updated
30 Jul 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Publications

  • Vora S, Pafundi D, Voss M, Buras M, Ashman J, Bendok B, Breen W, Hu L, Kizilbash S, Laack N, Liu W, Mahajan A, Mrugala M, Porter A, Ruff M, Sio T, Uhm J, Yang M, Brinkmann D, Brown P. Short-course hypofractionated proton beam therapy, incorporating 18F-DOPA PET and contrast-enhanced MRI targeting, for patients aged 65 years and older with newly diagnosed glioblastoma: a single-arm phase 2 trial. Lancet Oncol. 2024 Dec;25(12):1625-1634. doi: 10.1016/S1470-2045(24)00585-0. Epub 2024 Nov 18.

    PubMed 39571596

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing Accelerated Hypofractionated Radiation Therapy, Computed Tomography and Fluorodopa F 18 in people with Glioblastoma, run by Mayo Clinic at 8 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: under way, not looking for participants, as of the sponsor's last update on 30 Jul 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 8 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Proportion of patients alive [overall survival (OS)] at 12 months (time frame: Up to 12 months after enrollment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05781321, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 30 Jul 2026.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in