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High Risk MeningiomaPhase 1NCT07353229

68Ga-Dotatate PET and MRI Guided Radiation Dose Escalation for High Risk Meningioma

A Phase 1 study testing ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy, Magnetic Resonance Imaging (MRI) and 68Ga-Dotatate PET Imaging in people with High Risk Meningioma and Recurrent Meningioma, run by Thomas Jefferson University at 1 site in United States.

Suspended

Paused. Enrolment is on hold for now and may resume.

Official record
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Trial summary

The is phase 1 trial of 68Ga-Dotatate PET/MRI guided radiation dose escalation for high-risk meningiomas (defined as recurrent or subtotal resection of Grade 2, and any Grade 3 meningioma). A modified toxicity probability interval schedule will be implemented with a Bayesian Optimal interval suite. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
High Risk Meningioma, Recurrent Meningioma
What is being tested?
⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy, Magnetic Resonance Imaging (MRI) and 68Ga-Dotatate PET Imaging
Type of treatment
Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteUnited States
Study dates
5 Sep 2025to Sep 2028
Phase
Phase 1
Are there results?
None posted in the registry

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

  • Individuals must meet all the following inclusion criteria in order to be eligible to participate in the study:
  • Adult patients, age ≥ 18 years
  • Patients with RTOG Group III meningioma (high risk) defined as:
  • Patients with newly diagnosed or a recurrent WHO grade 3 meningioma of any resection extent.
  • or patients with a recurrent WHO grade 2 meningioma of any resection extent.
  • or patient with a newly diagnosed sub-totally resected (residual nodular enhancement or PET enhancement on postoperative imaging, or Simpson grade IV or V excision) WHO grade 2 meningioma.
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  • In the setting of newly diagnosed meningioma, the histologic diagnosis must be within 6 months of registration.
  • In the setting of a recurrent meningioma, there are no such time constraints. However, additional resection or biopsy is encouraged for patients with recurrence but is not requisite. If further biopsy or resection is performed at recurrence, it must be within 6 months of registration.
  • Karnofsky Performance Status 60-100
  • MRI brain and ⁶⁸Ga-Dotatate PET must be performed within 6 weeks prior to registration.
  • For woman of childbearing potential:
  • A negative serum pregnancy test is required within 14 days prior to registration.
  • The patient must agree to practice adequate contraception from the time of the negative serum pregnancy test throughout the entire course of EBRT.

Who cannot join

  • An individual who meets any of the following criteria will be excluded from participation in this study:
  • Extracranial meningioma
  • Prior radiation therapy to the scalp, cranium, brain, or skull base
  • Prior malignancy (except for non-melanomatous skin cancer), unless disease free for at least 3 years
  • Pregnancy or lactation
  • Treatment with another investigational drug or other intervention at time of registration
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  • Inability to receive gadolinium or undergo MRI brain or ⁶⁸Ga-Dotatate PET imaging.
  • Serious medical or psychiatric illness likely to interfere with participation in this clinical trial.
  • Evidence of increased intracranial pressure (midline shift > 5mm, clinically significant papilledema)
  • Uncontrolled seizure

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Sidney Kimmel Cancer Center at Thomas Jefferson University

    Philadelphia, Pennsylvania, 19107

Other trials in United States

About this study

Official title: Phase 1 Trial of 68Ga-Dotatate PET and MRI Guided Radiation Dose Escalation for High-Risk Meningiomas

The is phase 1 trial of 68Ga-Dotatate PET/MRI guided radiation dose escalation for high-risk meningiomas (defined as recurrent or subtotal resection of Grade 2, and any Grade 3 meningioma). A modified toxicity probability interval schedule will be implemented with a Bayesian Optimal interval suite. It includes 4 dose cohort (66 Gy, 69 Gy, 72 Gy and 75 Gy). The initial study cohort will include 3 patients treated with 69 Gy in 30 daily fractions. The investigators will seek to determine the MTD of radiation therapy based DLTs.

Read the detailed description

Patient will be enrolled, and dose selected per modified toxicity probability interval utilizing a Bayesian Optimal interval suite to maximize the probability that selecting the MTD dose that has a target DLT rate under 30% while optimizing patient safety over the 3+3 trial design 15. For our initial cohort the investigators will seek to treat 3 patients at 69 Gy in 30 daily fractions, Monday-Friday for 6 weeks of treatment utilizing MRI/PET target delineation with IMRT/VMAT. Patients will be followed weekly for on-treatment visits and 30 days from end of radiation to evaluate for DLTs classified as grade 3+ toxicity by NCI-CTCAE v5.0. Subsequent dosing will be determined by DLTs experienced utilizing a modified toxicity probability interval design. If the stopping rule is met, the trial will discontinue enrollment and select the MTD. If the stopping rule is not met, the DLT rate will be computed at the current treated dose. DLT rate is calculated by the total number of patients experiencing DLT at the current dose divided by total number of evaluable patients at the current dose. With a DLT rate of less than or equal to 0.236 dose will be escalated by 3 Gy, DLT rate greater than 0.359 will de-escalate the dose by 3 Gy. A rate between 0.236 and 0.359 will retain the current dose. An additional 3 patients will then be enrolled at specified dose depending on DLT rate. Patients will be treated and followed to assess for acute DLTs. The process will be repeated with enrollment discontinued if stopping rule met or additional patient will be enrolled at a dose from 66 - 75 Gy in 30 fractions based on new DLT rate. Enrollment utilizing DLT rate will be discontinued once stopping rule met or 12 patients are enrolled and an MTD will be established. Once the MTD has been established, an additional 12 patients at the MTD will then be enrolled.

Following radiation treatment (with once weekly on-treatment visits) and evaluation 1 month following completion for radiation, patients will be evaluated 3-, 6-, 9, 12-, 18-, and 24-months post-treatment utilizing NCI-CTCAEv5.0, symptom burden and QOL questionnaires, and MRI imaging to evaluate for safety, toxicity, and treatment efficacy.

The study population will include any adult patients, with high-risk meningioma as defined by RTOG definition (Grade 2 meningioma with subtotal resection or recurrence, and any Grade 3 meningioma).

It is believed dose escalation with IMRT/VMAT therapy is feasible and well tolerated with improved target delineation utilizing both MRI and PET fusion with an acceptable toxicity profile.

Being tested
⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy, Magnetic Resonance Imaging (MRI), 68Ga-Dotatate PET Imaging, MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT), EuroQol-5 Dimension (ED-5D)
Keywords
High-Risk Meningiomas, subtotal resection of Grade 2 meningioma, subtotal resection of Grade 3 meningioma, recurrent meningioma, 68Ga-Dotatate PET, MRI Guided Radiation, BOIN, maximum tolerated dose
Medical subject headings
Meningioma

What participants receive

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

  • ⁶⁸Ga-Dotatate PET and MRI Guided Radiation TherapyRadiation

    The radiation dose levels will be 66, 69, 72, and 75 Gy in 30 daily fractions based on the design.

  • Magnetic Resonance Imaging (MRI)Diagnostic test

    Also called MRI

    MRI brain with and without contrast must be performed within 6 weeks prior to registration. MRI brain will be performed at 3-, 6-, 9-, 12-, 18-, and 24 months. If surgery is performed, MRI must be performed after surgery.

  • 68Ga-Dotatate PET ImagingDiagnostic test

    Also called GaTate PET, Gallium-68 DOTATATE Scan, DOTA-TATE imaging

    ⁶⁸(GA)Dotatate PET must be performed within 6 weeks prior to registration. 12 months after radiation treatment +/- 1 month patients are required to get Ga-Dotatate PET.

  • MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT)Other

    Also called Survey

    Every 3 m ± 2 weeks, starting 3 m ± 2 weeks post radiation treatment. MRI at the 9 month post radiation visit is only to be completed if per physician discretion it is clinically indicated, except for patients with grade 3 meningioma, the 9 month MRI is required. At month 18 ± 4 weeks, and month 24 ± 4 weeks after radiation treatment.

  • EuroQol-5 Dimension (ED-5D)Diagnostic test

    Also called Survey

    Every 3 m ± 2 weeks, starting 3 m ± 2 weeks post radiation treatment. MRI at the 9 month post radiation visit is only to be completed if per physician discretion it is clinically indicated, except for patients with grade 3 meningioma, the 9 month MRI is required. At month 18 ± 4 weeks, and month 24 ± 4 weeks after radiation treatment.

Study groups in NCT07353229
Study groupRoleWhat they receive
Arm 1: Dose Level 1 - 66 GyExperimentalParticipants receive 68Ga-Dotatate PET and MRI guided external beam radiation therapy (EBRT) with intensity-modular radiation therapy (IMRT) or volumetric arc radiation therapy (VMAT). Two planning target volumes (PTV) will be required, including PTV and PTV-high. PTV_High will be given a dose of 66 Gy in 30 once daily fractions. PTV will receive 60 Gy in 30 fractions concurrently.
Receives: Radiation: ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy; Diagnostic Test: Magnetic Resonance Imaging (MRI); Diagnostic Test: 68Ga-Dotatate PET Imaging; Other: MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT); Diagnostic Test: EuroQol-5 Dimension (ED-5D)
Arm 2: Dose Level 2 - 69 GyExperimentalParticipants receive 68Ga-Dotatate PET and MRI guided external beam radiation therapy (EBRT) with intensity-modular radiation therapy (IMRT) or volumetric arc radiation therapy (VMAT). Two planning target volumes (PTV) will be required, including PTV and PTV-high. PTV_High will be given a dose of 69 Gy in 30 once daily fractions. PTV will receive 60 Gy in 30 fractions concurrently.
Receives: Radiation: ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy; Diagnostic Test: Magnetic Resonance Imaging (MRI); Diagnostic Test: 68Ga-Dotatate PET Imaging; Other: MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT); Diagnostic Test: EuroQol-5 Dimension (ED-5D)
Arm 3: Dose Level 3 - 72 GyExperimentalParticipants receive 68Ga-Dotatate PET and MRI guided external beam radiation therapy (EBRT) with intensity-modular radiation therapy (IMRT) or volumetric arc radiation therapy (VMAT). Two planning target volumes (PTV) will be required, including PTV and PTV-high. PTV_High will be given a dose of 72 Gy in 30 once daily fractions. PTV will receive 60 Gy in 30 fractions concurrently.
Receives: Radiation: ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy; Diagnostic Test: Magnetic Resonance Imaging (MRI); Diagnostic Test: 68Ga-Dotatate PET Imaging; Other: MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT); Diagnostic Test: EuroQol-5 Dimension (ED-5D)
Arm 4: Dose Level 4 - 75 GyExperimentalParticipants receive 68Ga-Dotatate PET and MRI guided external beam radiation therapy (EBRT) with intensity-modular radiation therapy (IMRT) or volumetric arc radiation therapy (VMAT). Two planning target volumes (PTV) will be required, including PTV and PTV-high. PTV_High will be given a dose of 75 Gy in 30 once daily fractions. PTV will receive 60 Gy in 30 fractions concurrently.
Receives: Radiation: ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy; Diagnostic Test: Magnetic Resonance Imaging (MRI); Diagnostic Test: 68Ga-Dotatate PET Imaging; Other: MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT); Diagnostic Test: EuroQol-5 Dimension (ED-5D)
MTD Expansion CohortExperimentalOnce the maximum tolerated dose (MTD) is established, an additional 12 patients will be enrolled at that dose level. Participants will receive 68Ga-Dotatate PET imaging and MRI-guided external beam radiation therapy (EBRT), delivered using either intensity-modulated radiation therapy (IMRT) or volumetric modulated arc therapy (VMAT). Two planning target volumes (PTVs) will be defined: PTV and PTV-High. PTV-High will receive the MTD (in Gy) delivered in 30 once-daily fractions. PTV will concurrently receive 60 Gy in 30 fractions.
Receives: Radiation: ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy; Diagnostic Test: Magnetic Resonance Imaging (MRI); Diagnostic Test: 68Ga-Dotatate PET Imaging; Other: MD Anderson Symptom Inventory Bain Tumor form (MDASI-BT); Diagnostic Test: EuroQol-5 Dimension (ED-5D)

What is being measured

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

  1. Maximum tolerated dose of 68Ga-Dotatate PET/MRI guided radiation dose escalation

    To establish MTD utilizing DLT rates (DLT will be defined as radiation treatment related G3 or higher neurological toxicity from beginning of radiation till 30 days after finishing radiation treatment).

    Measured: 30 days post-treatment

Secondary outcomes (8)
  1. Late Neurological Toxicities of Radiation Treatment

    Number of participants experiencing radiation treatment related G3 or higher neurological toxicity from beginning of radiation till 30 days after finishing radiation treatment.

    Measured: up to 2 year post-treatment

  2. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: Baseline

  3. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 3 months (+/- 2 weeks)

  4. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 6 months (+/- 2 weeks)

  5. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 9 months (+/- 2 weeks)

  6. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 12 months (+/- 2 weeks)

  7. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 18 months (+/- 4 weeks)

  8. Symptom Burden Assessment Using MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire

    Patient reported symptom severity and interference will be assessed using the MD Anderson Symptom Inventory - Brain Tumor (MDASI - BT) Questionnaire. It consists of 23 symptoms rated on an 11-point scale (0 to 10) to indicate the presence and severity of the symptom, with 0 being "not present" and 10 being "as bad as you can imagine." Each symptom is rated at its worst in the last 24 hours. The interference items also are measured on 0-10 scales.

    Measured: 24 months (+/- 4 weeks)

Timeline

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

  1. First posted20 Jan 2026
  2. Study start5 Sep 2025
  3. Primary completionSep 2026 (estimated)
  4. Study completionSep 2028 (estimated)

Why it stopped: dose escalation trial, and the first 3 patients (who made up a cohort) were all accrued

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 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
24 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07353229
Sponsor's protocol ID
iRIS ID-2023-2983
Other IDs
JT 38404
Status last verified
Jan 2026
First submitted
13 Jan 2026
Last updated
23 Jan 2026
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing ⁶⁸Ga-Dotatate PET and MRI Guided Radiation Therapy, Magnetic Resonance Imaging (MRI) and 68Ga-Dotatate PET Imaging in people with High Risk Meningioma and Recurrent Meningioma, run by Thomas Jefferson University at 1 site 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 13 inclusion and 10 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: paused, as of the sponsor's last update on 23 Jan 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site 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 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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

Are results available for this study?

Results are not available in the source record.

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?

Maximum tolerated dose of 68Ga-Dotatate PET/MRI guided radiation dose escalation (time frame: 30 days post-treatment). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 23 Jan 2026.

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