Lutathera for Treatment of Recurrent or Progressive High-Grade CNS Tumors

NCT ID: NCT05278208

Last Updated: 2025-10-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

65 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-11-21

Study Completion Date

2027-11-30

Brief Summary

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This study will evaluate the safety and efficacy of Lutathera (177Lu-DOTATATE) in patients with progressive or recurrent High-Grade Central Nervous System (CNS) tumors and meningiomas that demonstrate uptake on DOTATATE PET. The drug will be given intravenously once every 8 weeks for a total of up to 4 doses over 8 months in patients aged 4 to \<12 years (Phase I) or 12 to \</=39 years (Phase II) to test its safety and efficacy, respectively.

Funding Source - FDA OOPD (grant number FD-R-0532-01)

Detailed Description

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Somatostatin receptors regulate cell growth through downstream modulation of both proliferation and apoptosis signaling pathways, and thus represent a potential therapeutic target. Lutathera (Lutetium \[Lu\]177 Dotatate) is a radionuclide therapy which binds type-2A somatostatin receptors (SST2A) and has recently gained FDA approval for the treatment of adult gastroenteropancreatic neuroendocrine tumors expressing SST2A.

High SST2A expression has been consistently observed in medulloblastoma and other embryonal tumors (75-100% of cases) as well as in some HGGs and anaplastic ependymomas (13-80%), with corresponding uptake on radiolabeled somatostatin receptor nuclear imaging (e.g. DOTATATE PET).

Emerging data has demonstrated treatment response (disease stabilization or regression) to somatostatin receptor-targeted therapy in children and young adults with relapsed medulloblastoma, HGG, meningioma, and brain metastases of neuroendocrine tumors, suggesting sufficient CNS penetration to achieve therapeutic benefit.

The proposed Phase I-II study will investigate the safety and efficacy of Lutathera treatment in patients whose tumors demonstrate uptake on DOTATATE PET (functional evidence of SST2A expression). In both Phase cohorts, Lutathera will be administered as an intravenous infusion on day 1 of each 8-week cycle for up to 4 cycles.

Phase I: (4 to \<12 years) To determine the safety, define the dose-limiting toxicities, and establish the maximally tolerated dose (MTD)/ recommended Phase II dose (RP2D) of Lutathera in this patient population. The first cycle (first 8 weeks) will be used as the dose-limiting toxicity (DLT) observation period. The starting dose will be dose level 1, 200 mCi\*(body surface area \[BSA\]/1.73m2), which corresponds to the BSA-adjusted FDA approved adult dosing of Lutathera (200 mCi every 8 weeks). Once the MTD/RP2D is established, an efficacy expansion cohort of up to 10 patients will be opened to determine the preliminary efficacy of the MTD/RP2D of Lutathera in this cohort.

Phase II: (12 to \</=39 years) Enroll patients at the recommended adult dose of 200 mCi every 8 weeks to determine the anti-tumor activity of Lutathera at this dosing in this population. Response will be assessed on imaging (brain and/or spine MRI and DOTATATE PET) following every cycle or every other cycle.

Conditions

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High Grade Glioma Meningioma Embryonal Tumor Medulloblastoma Anaplastic Ependymoma Recurrent Diffuse Intrinsic Pontine Glioma Recurrent Malignant Glioma Recurrent Medulloblastoma Recurrent Primary Central Nervous System Neoplasm Refractory Diffuse Intrinsic Pontine Glioma Refractory Malignant Glioma Refractory Medulloblastoma Refractory Primary Central Nervous System Neoplasm

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Phase I (4 to \<12 yrs) Lutathera (maximum dose of 200 mCi) once every 8 weeks (one cycle) for 4 cycles.

Level 0: 150 mCi\*(BSA/1.73m2). Level 1#: 200 mCi\*(BSA/1.73m2). Level 2: 250 mCi\*(BSA/1.73m2).

#starting dose

Phase II (12 to \</=39 years) RP2D 200 mCi once every 8 weeks
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Phase I-II

Pediatric patients (4 to \<12 years, Phase I) and adolescent and young adult patients (12 to \</=39 years, Phase II) with recurrent/progressive high-grade central nervous system tumors and meningiomas that express SST2A and demonstrate uptake on DOTATATE PET will receive Lutathera once every 8 weeks (1 cycle) for a total of 4 doses over 8 months

Phase I starting dose will be 200 mCi\*(BSA/1.73m2), corresponding to the BSA-adjusted FDA approved adult Lutathera dosing. The first cycle will be used as the DLT period. Once MTD/RP2D is established, an efficacy expansion cohort of up to 10 patients will be opened to determine the preliminary efficacy of MTD/RP2D of Lutathera

Phase II patients will receive the adult RP2D of 200 mCi every 8 weeks to determine the anti-tumor activity of Lutathera in this patient population, through evaluation of 6-month PFS as the primary efficacy endpoint. Response will be assessed on imaging (brain/spine MRI and DOTATATE PET) following every 1-2 cycles.

Group Type EXPERIMENTAL

LUTATHERA® (Lutetium Lu 177 dotatate)

Intervention Type DRUG

Lutathera: IV administration maximum dose of 200 mCi once every 8 weeks (one cycle) for total of 4 cycles (8 months)

Interventions

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LUTATHERA® (Lutetium Lu 177 dotatate)

Lutathera: IV administration maximum dose of 200 mCi once every 8 weeks (one cycle) for total of 4 cycles (8 months)

Intervention Type DRUG

Other Intervention Names

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Lutathera

Eligibility Criteria

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Inclusion Criteria

3.1 Uptake on \[68Ga\]Ga-DOTATATE PET Patients must have uptake on DOTATATE PET/CT in at least one tumor lesion (corresponding to known disease) equivalent to a Krenning score ≥2 (confirmed by central radiology review).

3.2 Prior Therapy Patients must have recovered from the acute treatment related toxicities (defined as ≤ grade 1 if not defined in eligibility criteria) of all prior chemotherapy, immunotherapy, radiotherapy, or any other treatment modality prior to entering this study.

3.3 Chemotherapy Patients must have received their last dose of known myelosuppressive anticancer therapy at least 21 days prior to enrollment or at least 42 days if nitrosourea.

3.4 Investigational/Biologic Agent

●Biologic or investigational agent (anti-neoplastic): Patient must have recovered from any acute toxicity potentially related to the agent and received their last dose of the investigational or biologic agent ≥ 7 days prior to study enrollment.

For agents that have known adverse events occurring beyond 7 days after administration, this period must be extended beyond the time during which adverse events are known to occur.

●Monoclonal Antibodies and agents with known prolonged half-lives: Patient must have recovered from any acute toxicity potentially related to the agent and received their last dose of the agent ≥ 28 days prior to study enrollment.

3.5 Radiation

Patients must have had their last fraction of:
* Craniospinal irradiation or total body irradiation or radiation to \> 50% of pelvis \> 3 months prior to enrollment.
* Focal irradiation \> 4 weeks prior to enrollment

3.6 Stem Cell Transplant

Patient must be:
* ≥ 6 months since allogeneic stem cell transplant prior to enrollment with no evidence of active graft vs. host disease
* ≥ 3 months since autologous stem cell transplant prior to enrollment

3.7 Growth Factors Patients must be off all colony-forming growth factor(s) for at least 1 week prior to enrollment (e.g. filgrastim, sargramostim or erythropoietin). Two weeks must have elapsed if patients received long-acting formulations.

3.8 Somatostatin analogs Patients must be off long-acting somatostatin analogs for at least 4 weeks and off short-acting somastatin analogs (i.e., octreotide) for at least 24 hours.

3.9 Neurologic Status
* Patients with neurological deficits should have deficits that are stable for a minimum of 1 week prior to enrollment, documented by a detailed neurological exam.
* Patients with seizure disorders may be enrolled if seizures are well controlled.

3.10 Performance Status Karnofsky Performance Scale (KPS for \> 16 years of age) or Lansky Performance Score (LPS for ≤ 16 years of age) assessed within two weeks of enrollment must be ≥ 50. Patients who are unable to walk because of neurologic deficits, but who are up in a wheelchair, will be considered ambulatory for the purpose of assessing the performance score

3.11 Organ Function

Patients must have adequate organ and marrow function, both for eligibility for enrollment, and to begin each subsequent cycle of Lutathera, as defined below:
* Adequate Bone Marrow Function as defined as:

* Absolute neutrophil count ≥ 1.0 x 109 cells/ L
* Platelets ≥100 x 109 cells/ L (unsupported, defined as no platelet transfusion within 7 days)
* Hemoglobin ≥8 g/dl (may receive transfusions)
* Adequate Renal Function as defined as:

* Creatinine clearance or radioisotope GFR \>70mL/min/1.73m2 OR
* A serum creatinine based on (Schwartz et al. J. Peds, 106:522, 1985) age/gender as follows:

1 to \< 2 years: maximum serum creatinine 0.6 mg/dL for males and females. 2 to \< 6 years: maximum serum creatinine 0.8 mg/dL for males and females. 6 to \< 10 years: maximum serum creatinine 1.0 mg/dL for males and females. 10 to \< 13 years: maximum serum creatinine 1.2 mg/dL for males and females. 13 to \< 16 years: maximum serum creatinine 1.5 mg/dL for males and 1.4 mg/dL for females.

≥ 16 years: maximum serum creatinine 1.7 mg/dL for males and 1.4 mg/dL for females.
* Adequate Liver Function as defined as:

* Total bilirubin ≤ 3 times institutional upper limit of normal (ULN) for age
* AST(SGOT)/ALT(SGPT) ≤ 3 times institutional ULN
* Serum albumin ≥ 2g/dL
* Coagulation parameters: INR \<1.5 times ULN and aPTT \<1.5 times ULN unless patients are receiving therapeutic anticoagulation which affects these parameters
* Adequate Cardiac Function as defined as:

* Ejection fraction of ≥ 55% by echocardiogram
* Serum electrolytes (Sodium, Potassium, Chloride) within institutional limits of normal (patients can be on enteral supplementation)

3.12 Corticosteroids Patients who are receiving dexamethasone must be on a stable or decreasing dose for at least 1 week prior to enrollment, with a maximum dexamethasone dose of 2.5mg/m2/day.

3.13 Pregnancy Status Female patients of childbearing potential must have a negative serum or urine pregnancy test within 72 hours prior to receiving the first dose of study medication. If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required.

3.14 Pregnancy Prevention Patients of childbearing or child fathering potential must be willing to use a medically acceptable form of birth control, which includes abstinence, while being treated on this study and for at least 7 months after drug cessation in females of childbearing potential and for at least 4 months after drug cessation in males of child fathering potential.

3.15 Informed Consent The patient or parent/guardian is able to understand the consent and is willing to sign a written informed consent document according to institutional guidelines.

Exclusion Criteria

1. Screening Criteria

1.1 Diagnosis Patient must have a diagnosis of primary high-grade CNS tumor (any histopathologic diagnosis that is WHO grade III-IV) or meningioma (any histologic grade) that is recurrent, progressive, or refractory. Note that patients with DIPG (based on radiographic/clinical diagnosis) who have undergone biopsy will be eligible with histologic diagnosis of grade II-IV infiltrating glioma. All tumors must have histologic verification either at the time of diagnosis or recurrence, except for patients meningioma who have not previously undergone biopsy or resection.

Note: Refractory disease is defined as the presence of persistent abnormality on conventional MRI that is further distinguished by histology (biopsy or sample of lesion) or advanced imaging, OR as determined by the treating physician and discussed with the primary investigator prior to enrollment.

1.2 Prior Therapy Patients must have recurred/progressed following prior standard therapy for their tumor. Note: Patients with meningioma, atypical meningioma, or anaplastic meningioma must have received at least surgical resection or radiation.

1.3 Screening Consent Participant/legal guardian is willing to sign a screening consent for \[68Ga\]Ga-DOTATATE PET imaging. The screening consent is to be obtained according to institutional guidelines. Assent, when appropriate, will be obtained according to institutional guidelines.
2. Eligibility Criteria

* Phase I Age Patient must be ≥ 4 and \<12 years of age at the time of enrollment. Disease Status: Patients who participate in the efficacy expansion cohort must have bi-dimensionally measurable disease, defined as at least one lesion that can be accurately measured in at least two dimensions Patients with measurable extraneural disease only are also eligible.
* Phase II Age Patient must be 12 to \</=39 years at the time of enrollment.

4.1 Confirmed bone marrow metastatic disease Patients with confirmed metastatic disease to bone marrow are ineligible.

4.2 Presence of bulky disease Patients with bulky disease on imaging as described below are ineligible. Treating physicians are encouraged to request a rapid central imaging review to confirm fulfillment of these criteria if there are questions or concerns.

Bulky disease is defined as:
* Tumor with evidence of clinically significant uncal herniation or midline shift.
* Tumor with diameter of \>5cm in one dimension on T2/FLAIR.
* Tumor that in the opinion of the site investigator shows significant mass effect in either the brain or spine.

Note that patients with metastatic or multi-focal disease (with exception of bone marrow) are eligible as long as no sites of disease meet above criteria for bulky disease.

4.3 Breast-feeding Nursing mothers are excluded from this study. There is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with Lutathera.

4.4 Concurrent Illness
* Patients with a history of any other malignancy, except patients with a secondary brain tumor if the patient's prior malignancy has been in remission for at least 5 years from the end of treatment.
* Patients with any clinically significant unrelated systemic illness (serious infections or significant cardiac, pulmonary, hepatic or other organ dysfunction), that in the opinion of the investigator would compromise the patient's ability to tolerate protocol therapy, put them at additional risk for toxicity or would interfere with the study procedures or results.
* Patients with type I diabetes.

4.5 Concomitant Medications
* Patients who are receiving any other anti-cancer or investigational drug therapy are ineligible.
* Prior or current treatment with 177Lu-DOTATATE/TOC or 90Y-DOTATATE/TOC.

4.6 Prisoners will be excluded from this study.

4.7 Inability to participate: Patients who in the opinion of the investigator are unwilling or unable to return for required follow-up visits, obtain follow-up studies required to assess toxicity to therapy, or adhere to drug administration plan, other study procedures, and study restrictions.
5. Inclusion of Women and Minorities Both males and females of all races and ethnic groups are eligible for this study.
Minimum Eligible Age

4 Years

Maximum Eligible Age

39 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Nationwide Children's Hospital

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Margot Lazow, MD

Role: PRINCIPAL_INVESTIGATOR

Nationwide Children's Hospital

Locations

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Children's Hospital Colorado

Aurora, Colorado, United States

Site Status WITHDRAWN

Cincinnati Children's Hospital Medical Center

Cincinnati, Ohio, United States

Site Status RECRUITING

Nationwide Children's Hospital

Columbus, Ohio, United States

Site Status RECRUITING

Children's Hospital of Philadelphia

Philadelphia, Pennsylvania, United States

Site Status NOT_YET_RECRUITING

Countries

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United States

Central Contacts

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Kelsey H Troyer, PhD

Role: CONTACT

614-722-8566

Facility Contacts

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Peter de Blank, MD

Role: primary

513-517-2068

Margot Lazow, MD

Role: primary

Melinda Triplet

Role: backup

614-722-6039

Michael J Fisher

Role: primary

12155905188

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Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

FD-R-0532-01

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

CONNECT2007

Identifier Type: -

Identifier Source: org_study_id

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