A Phase 2 interventional study of Dose-Escalated Radiation Therapy and Spectroscopic Magnetic Resonance Imaging in Glioblastoma and Gliosarcoma, sponsored by Emory University. Completed at 3 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-08-03.
Sponsored by Emory University · Phase 2, Interventional, and Treatment
This pilot clinical trial studies the side effects of spectroscopic magnetic resonance imaging (MRI)-guided radiation therapy and how well it works in treating patients with newly-diagnosed glioblastoma or gliosarcoma. Spectroscopic MRI can show doctors where the extent of tumor is in the brain beyond current clinical MRI scans by mapping areas of high tumor metabolism. Radiation therapy uses high energy beams to kill tumor cells and shrink tumors. Spectroscopic MRI-guided radiation therapy may work better in treating patients with glioblastoma or gliosarcoma.
PRIMARY OBJECTIVES:
I. To determine the feasibility of using spectroscopic MRI (sMRI) to guide dose-escalated radiation therapy (RT) for newly-diagnosed glioblastoma (GBM)s.
II. To determine the safety of using sMRI to guide dose-escalated RT for newly-diagnosed GBMs.
SECONDARY OBJECTIVE:
I. To determine whether the progression free survival at 1 year with sMRI-guided, dose-escalated RT is improved for newly-diagnosed GBMs.
TERTIARY OBJECTIVES:
I. To determine whether sMRI-guided, dose-escalated RT increases the overall survival of patients with newly diagnosed GBMs.
II. To determine whether sMRI data obtained after initiation of therapy (at 2 weeks after RT/TMZ start and prior to cycle 1 and 5 of adjuvant temozolomide [TMZ]) will provide early evidence of GBM progression not seen on standard MRIs.
III. To determine whether performance on neurocognitive and quality-of-life (QOL) assessments in newly-diagnosed GBM patients treated with sMRI-guided, dose-escalated RT differ from historical controls.
OUTLINE:
Patients undergo sMRI-guided radiation therapy daily for the first 5 days of every week (Monday - Friday) over 6 weeks. Patients also receive standard of care temozolomide orally (PO) daily during radiation therapy for up to 42 days.
After completion of study treatment, patients are followed up every 3 months for up to 2 years and then periodically.
Patients must have the following lab values ≤ 14 days prior to registration:
Exclusion Criteria:
Patients undergo spectroscopic magnetic resonance imaging-guided dose-escalated radiation therapy daily for the first 5 days of every week (Monday - Friday) over 6 weeks. Patients also receive standard of care temozolomide PO daily during radiation therapy for up to 42 days.
Radiation: Dose-Escalated Radiation Therapy · Procedure: Spectroscopic Magnetic Resonance Imaging · Drug: Temozolomide
Undergo sMRI-guided radiation therapy, dose painted to maximum of 75 Gy over six weeks
Also known as: RT, Radiation Therapy
Patients will undergo sMRI scans within a 14 day window prior to starting treatment
Also known as: sMRI, MRSI, Magnetic Resonance Spectroscopic Imaging
Given PO
Also known as: Methazolastone, Temcad, Temodal, Temodar, Temomedac, TMZ
Feasibility as Assessed by Successful Co-registration of sMRI-based Treatment Volumes With Clinical Images Into the Radiation Treatment Execution Platform
Feasibility of this approach will be determined by whether treatment volumes based on sMRI can be co-registered with clinical images and transferred into the radiation treatment execution platform in a seamless manner, so that sMRI information can be efficiently applied to the patient treatment.
Time frame: Up to 2 years after completion of therapy
Incidence of Adverse Event Assessed by Common Terminology Criteria for Adverse Events Version 4.0
The safety of sMRI to guide dose-escalated RT will be confirmed by assessing toxicity potentially attributable to the RT.
Time frame: Up to 2 years after completion of therapy
Progression Free Survival (PFS)
Patients were followed at least every 3 months for 2 years from the start of RT.
Time frame: 2 years from the start of RT.
Overall Survival (OS)
Patients were followed at least every 3 months for 2.5 years from the start of RT.
Time frame: 2.5 years from start of RT
| Milestone | sMRI-Guided RT With TMZ |
|---|---|
| Started | 30 |
| Completed | 30 |
| Not completed | 0 |
Feasibility of this approach will be determined by whether treatment volumes based on sMRI can be co-registered with clinical images and transferred into the radiation treatment execution platform in a seamless manner, so that sMRI information can be efficiently applied to the patient treatment.
| Participants | sMRI-Guided RT With TMZ |
|---|---|
| Feasibility as Assessed by Successful Co-registration of sMRI-based Treatment Volumes With Clinical Images Into the Radiation Treatment Execution Platform | 30 |
The safety of sMRI to guide dose-escalated RT will be confirmed by assessing toxicity potentially attributable to the RT.
| Adverse Events | sMRI-Guided RT With TMZ |
|---|---|
| Incidence of Adverse Event Assessed by Common Terminology Criteria for Adverse Events Version 4.0 | 79 (62 to 99) |
Patients were followed at least every 3 months for 2 years from the start of RT.
| Months | sMRI-Guided RT With TMZ |
|---|---|
| Progression Free Survival (PFS) | 16.6 (11.6 to 24.0) |
Patients were followed at least every 3 months for 2.5 years from the start of RT.
| Months | sMRI-Guided RT With TMZ |
|---|---|
| Overall Survival (OS) | 23 (18.6 to 27.3) |
Collected over Up to 2 years after completion of therapy. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| sMRI-Guided RT With TMZ | 16/30 (53.3%) | 14/30 (46.7%) | 30/30 (100%) |
| Event | sMRI-Guided RT With TMZ |
|---|---|
| ThrombocytopeniaBlood and lymphatic system disorders | 5/30 |
| Muscle weaknessMusculoskeletal and connective tissue disorders | 2/30 |
| NeutropeniaImmune system disorders | 1/30 |
| TransaminitisBlood and lymphatic system disorders | 1/30 |
| HypokalemiaMetabolism and nutrition disorders | 1/30 |
| EdemaGeneral disorders | 1/30 |
| FatigueGeneral disorders | 1/30 |
| HeadachesNervous system disorders | 1/30 |
| Leg edemaGeneral disorders | 1/30 |
| Event | sMRI-Guided RT With TMZ |
|---|---|
| FatigueGeneral disorders | 28/30 |
| General disorders and administration site conditionsGeneral disorders | 19/30 |
| ConstipationGastrointestinal disorders | 16/30 |
| SeizureNervous system disorders | 15/30 |
| AlopeciaSkin and subcutaneous tissue disorders | 14/30 |
| HeadacheNervous system disorders | 14/30 |
| Nervous system disordersNervous system disorders | 13/30 |
| AnorexiaMetabolism and nutrition disorders | 12/30 |
| Blood and lymphatic system disorders - Other, specifyBlood and lymphatic system disorders | 12/30 |
| NauseaGastrointestinal disorders | 11/30 |
| Age, Categorical(Participants) | sMRI-Guided RT With TMZ |
|---|---|
| <=18 years | 0 |
| Between 18 and 65 years | 23 |
| >=65 years | 7 |
| Age, Continuous(Years) | sMRI-Guided RT With TMZ |
|---|---|
| Mean | 56.4 (20.8 to 71.6) |
| Sex: Female, Male(Participants) | sMRI-Guided RT With TMZ |
|---|---|
| Female | 11 |
| Male | 19 |
| Race (NIH/OMB)(Participants) | sMRI-Guided RT With TMZ |
|---|---|
| American Indian or Alaska Native | 0 |
| Asian | 1 |
| Native Hawaiian or Other Pacific Islander | 0 |
| Black or African American | 1 |
| White | 28 |
| More than one race | 0 |
| Unknown or Not Reported | 0 |
| Region of Enrollment(Participants) | sMRI-Guided RT With TMZ |
|---|---|
| United States | 30 |
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