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Lutathera for the Treatment of Inoperable, Progressive Meningioma After External Beam Radiation Therapy

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment42 people
  • Recruiting US sites1
  • SponsorMayo Clinic
  • RegistryNCT04082520

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

Lutathera for the Treatment of Inoperable, Progressive Meningioma After External Beam Radiation Therapy: a one-minute explainerNCT040825201 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Previous treatment for meningioma including surgery, when possible, and radiation therapy (conventional fractionated or radiosurgery). Pathologic confirmation of meningioma is not required for patients who are not surgical candidates and received radiation therapy based on magnetic resonance imaging (MRI) consistent with meningioma. Patients with prior surgery will have pathologic confirmation of meningioma with either formalin-fixed paraffin-embedded (FFPE) tumor block OR meningioma tissue slides available for submission to central pathology review
  • Radiographic evidence of meningioma progression with measurable disease, defined as an increase in size of the measurable primary lesion on imaging by 15% or more (sum of the bidirectional measurements) in an approximate 6 month time period (i.e., calculated rate of growth 15% / 6 months based on available scans) or by the appearance of a new measurable lesion
  • Previous treatment with either fractionated radiation therapy or stereotactic radiosurgery at the site of progressive meningioma, without safe option for further radiotherapy
  • Willing to undergo 68Ga-DOTATATE PET imaging. 68Ga-DOTATATE PET imaging must be Krenning score must be a score of 2 or higher, suggesting somatostatin receptor expression, to be registered on the study. A PET/MRI is preferred, but PET/CT is permitted if a patient is not technically able to receive a PET/MRI or at the discretion of the primary investigator (PI).
  • Measurable disease
  • Eastern Cooperative Oncology Group (ECOG) performance status (PS) =< 2
  • Absolute neutrophil count (ANC) >= 1500/mm (obtained =< 28 days prior to registration)
  • Platelet count >= 100,000/mm (obtained =< 28 days prior to registration)
  • Hemoglobin >= 9.0 g/dL (obtained =< 28 days prior to registration)
  • Direct bilirubin < 1.5 x upper limit of normal (ULN) (or total bilirubin =< 3.0 x ULN with direct bilirubin =< 1.5 x ULN in patients with well-documented Gilbert's syndrome) (obtained =< 28 days prior to registration)
  • Aspartate transaminase (AST) =< 3 x ULN (obtained =< 28 days prior to registration)
  • Prothrombin time (PT)/international normalized ratio (INR)/partial thromboplastin time (PTT) =< 1.5 x ULN OR if patient is receiving anticoagulant therapy and PT or PTT is within therapeutic range of intended use of coagulants (obtained =< 28 days prior to registration)
  • Calculated creatinine clearance must be >= 40 ml/min using the Cockcroft-Gault formula (obtained =< 28 days prior to registration) using the Chronic Kidney Disease Epidemiology Collaboration (CDK-EPI) equation.
  • Ability to complete questionnaire(s) by themselves or with assistance
  • Provide written informed consent
  • Willing to return to enrolling institution for follow-up (during the Active Monitoring Phase of the study) and it is highly recommend to see study staff in Radiation Oncology, Medical Oncology and/or Neuro-Oncology during the Event Monitoring Phase of the study.
  • Until 21 SPECT/CT slots are filled, willing to undergo SPECT/CT imaging for dosimetry analysis.

You cannot join if

  • Eligibility for surgical or radiation treatment with curative intent
  • Any of the following because this study involves an agent that has known genotoxic, mutagenic and teratogenic effects:
  • Pregnant women (NOTE: Patients with surgical sterilization or who have been post-menopausal for at least 2 years are excluded form pregnancy testing, but this must be documented.)
  • Nursing women
  • Men or women of childbearing potential who are unwilling to employ adequate contraception
  • Co-morbid systemic illnesses or other severe concurrent disease which, in the judgment of the investigator, would make the patient inappropriate for entry into this study or interfere significantly with the proper assessment of safety and toxicity of the prescribed regimens
  • Contraindications to or intolerance of MRI
  • Immunocompromised patients and patients known to be human immunodeficiency virus (HIV) positive and currently receiving antiretroviral therapy
  • NOTE: Patients known to be HIV positive, but without clinical evidence of an immunocompromised state, are eligible for this trial
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure (New York Heart Association [NYHA] II, III, IV), unstable angina pectoris, uncontrolled diabetes mellitus (fasting blood glucose > 2 ULN), cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements
  • Receiving any other investigational agent which would be considered as a treatment for the primary neoplasm
  • Note: This includes treatment with somatostatin LAR within 4 weeks prior to enrollment, or any patient receiving treatment with short-acting octreotide that cannot be interrupted for greater than 24 hours before treatment
  • Other active malignancy =< 2 years prior to registration
  • EXCEPTIONS: Non-melanotic skin cancer or carcinoma-in-situ of the cervix
  • NOTE: If there is a history of prior malignancy, they must not be receiving other specific treatment for their cancer
  • History of myocardial infarction =< 6 months, or congestive heart failure requiring use of ongoing maintenance therapy for life-threatening ventricular arrhythmias
  • Current spontaneous urinary incontinence making impossible the safe administration of LUTATHERA
  • Untreated, refractory and/or symptomatic toxicity related to previous radiation therapy including radiation necrosis, radiation optic neuropathy, or radiation retinopathy
  • Optic nerve sheath meningioma, extracranial meningioma

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

lutetium Lu 177 dotatate. A radioconjugate consisting of the tyrosine-containing somatostatin analog Tyr3-octreotate (TATE) conjugated with the bifunctional, macrocyclic chelating agent tetra-azacyclododecanetetra-acetic acid (DOTA) and radiolabeled with the beta-emitting radioisotope lutetium Lu 177, with potential imaging and antineoplastic activities. Lutetium Lu 177 dotatate binds to somatostatin receptors (SSTRs), with high affinity to type 2 SSTR, present on the cell membranes of many types of neuroendocrine tumor (NET) cells. Upon binding and internalization, this radioconjugate specifically delivers a cytotoxic dose of beta radiation to SSTR-positive cells. Tyr3-octreotate (TATE) is an octreotide derivative in which phenylalanine at position 3 is substituted by tyrosine and position 8 threoninol is replaced with threonine. SSTRs have been shown to be present in large numbers on NET and their metastases, while most other normal tissues express low levels of SSTRs. NCI Drug Dictionary

Treatments listed in the registry

  • Gallium Ga 68-DOTATATE (Radiation): Given IV
  • Lutetium Lu 177 Dotatate (Drug): Given IV
  • Magnetic Resonance Imaging (Procedure): Undergo PET/MRI
  • Positron Emission Tomography (Procedure): Undergo PET/MRI
  • Questionnaire Administration (Other): Ancillary studies
  • Computed Tomography (Procedure): Undergo PET/CT and/or SPECT/CT
  • Biospecimen Collection (Procedure): Undergo blood sample collection
  • Single Photon Emission Computed Tomography (Procedure): Undergo SPECT/CT

The study

Treatment groups

Na · Single Group · masking: None

Treatment (gallium Ga 68-DOTATATE PET/MRI, Lutathera) (Experimental)

Patients receive gallium Ga 68-DOTATATE IV and undergo a PET/MRI or PET/CT before cycles 1 and 4. Patients then receive lutetium Lu 177 dotatate IV over 30-40 minutes. Treatment repeats every 8 weeks for up to 4 cycles in the absence of disease progression or unacceptable toxicity. Patients undergo MRI on study and during follow-up, as well as blood sample collection and possible SPECT/CT dosimetry on study.

What it involves

Procedures

As the registry describes them. Requirements to join, such as a tissue sample, are in the eligibility list above even when on-study procedures are optional. Ask the study team which steps apply to you.

  • blood samples: Part of the study plan
  • CT scans: Part of the study plan
  • MRI: Part of the study plan
  • PET scans: Part of the study plan
  • questionnaires: Part of the study plan

Goals

What the study measures

Main goals

  • Progression-free survival - 6 months (At 6 months after starting treatment)

Other goals

  • Overall survival
  • Progression free survival - overall
  • Incidence of adverse events

Planned enrollment: 42 (estimated).

Where

Recruiting US sites

  • Mayo Clinic in Rochester, Rochester, Minnesota

Site status as of Oct 30, 2026. Check the live record before contacting a site.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Oct 12, 2026. Public record; not medical advice.

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