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EpendymomaPhase 1NCT04661384

Brain Tumor-Specific Immune Cells (IL13Ralpha2-CAR T Cells) for the Treatment of Leptomeningeal Glioblastoma, Ependymoma, or Medulloblastoma

A Phase 1 study testing IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-Lymphocytes in people with Ependymoma and Glioblastoma, run by City of Hope Medical Center at 1 site in United States.

Active, not recruiting

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

Official record
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Trial summary

This phase I trial investigates the side effects of brain tumor-specific immune cells (IL13Ralpha2-CAR T cells) in treating patients with leptomeningeal disease from glioblastoma, ependymoma, or medulloblastoma. Immune cells are part of the immune system and help the body fight infections and other diseases. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Ependymoma, Glioblastoma, Medulloblastoma
What is being tested?
IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-Lymphocytes
Could I receive a placebo?
No, everyone receives an active treatment
How many people
10 participants
Where
1 siteUnited States
Study dates
5 Mar 2021to 12 Jan 2027
Phase
Phase 1
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

  • Participant has verified leptomeningeal metastases
  • Participant must have a Karnofsky performance status (KPS) >= 60
  • Participant must have a life expectancy of >= 8 weeks
  • If participant has a ventriculoperitoneal shunt, the valve must be programmable, and must be able to tolerate their shunts being turned off for 48 hours
  • The effects of IL13Ralpha2-CAR T cells on a developing fetus are unknown. For this reason, women of child-bearing potential must have negative serum pregnancy test and agree to use a reliable form of birth control prior to study entry and for at least two months following study treatment. Male research participants must agree to use a reliable form of birth control and not donate sperm during the study and for at least two months following study treatment
  • Participant has a histologically confirmed IL13Ralpha2+ tumor expression by immunohistochemistry (IHC) at the initial tumor presentation or recurrent disease (H-score >= 50)
  • Participant must have the ability to understand and the willingness to sign a written informed consent
  • No known contraindications to leukapheresis, steroids, or tocilizumab

Who cannot join

  • Research participant requires supplemental oxygen to keep saturation greater than 95% and the situation is not expected to resolve within 2 weeks
  • Research participant requires dialysis
  • Research participant has uncontrolled seizure activity and/or clinically evident progressive encephalopathy
  • Failure of research participant to understand the basic elements of the protocol and/or the risks/benefits of participating in this phase 1 study. A legal guardian may substitute for the research participant
  • Participant is unwilling to stop treatment with chemotherapy or endocrine therapy and/or radiation one week prior and during the first 4 cycles of the IL13Ralpha2-CAR T cell study
  • Shunted participants either have a non-programmable shunt valve, or cannot tolerate their shunts being turned off for 48 hours
Show all 15Show fewer
  • Participant has a coagulopathy or bleeding disorder or cannot safely discontinue anticoagulation prior to placement of a Rickham reservoir
  • Participant has a chronic or active viral infection of the central nervous system (CNS)
  • Participant has any uncontrolled illness, including ongoing or active infection; participant has known active hepatitis B or C infection; participants with any signs or symptoms of active infection, positive blood cultures or radiological evidence of infections
  • Participant is human immunodeficiency virus (HIV) seropositive based on testing performed within 4 weeks of signing the main informed consent
  • Participant has an autoimmune disease
  • Participant has another active malignancy
  • Participant is unable to undergo a brain magnetic resonance imaging (MRI)
  • Participant is pregnant or breast feeding. Because there is an unknown but potential risk for adverse events in nursing infants secondary to treatment of the mother with IL13Ralpha2-CAR T cells, breastfeeding should be discontinued if the mother wants to participate in this study
  • Prospective participants who, in the opinion of the Investigator, may not be able to comply with all study procedures (including compliance issues related to feasibility/logistics)

Trial locations and contacts

1 site in 1 country.

United States1 site
  • City of Hope Medical Center

    Duarte, California, 91010

Other trials in United States

About this study

Official title: A Phase 1 Study to Evaluate IL13Rα2-Targeted Chimeric Antigen Receptor (CAR) T Cells for Adult Patients With Leptomeningeal Glioblastoma, Ependymoma or Medulloblastoma

This phase I trial investigates the side effects of brain tumor-specific immune cells (IL13Ralpha2-CAR T cells) in treating patients with leptomeningeal disease from glioblastoma, ependymoma, or medulloblastoma. Immune cells are part of the immune system and help the body fight infections and other diseases. Immune cells can be engineered to destroy brain tumor cells in the laboratory. IL13Ralpha2-CAR T cells is brain tumor specific and can enter and express its genes in immune cells. Giving IL13Ralpha2-CAR T cells may better recognize and destroy brain tumor cells in patients with leptomeningeal disease from glioblastoma, ependymoma or medulloblastoma.

Read the detailed description

PRIMARY OBJECTIVES:

  1. Examine and describe the safety and feasibility of IL13Ralpha2-specific hinge-optimized 41BB-co-stimulatory CAR truncated CD19-expressing autologous T-lymphocytes (IL13Ralpha2-CAR T cells) through intracerebroventricular (ICV) delivery as adjuvant therapy in participants with:

Ia. IL13Ralpha2+ leptomeningeal disease from glioblastoma (arm 1). Ib. IL13Ralpha2+ leptomeningeal disease from ependymoma or medulloblastoma (arm 2).

II. Determine the activity of IL13Ralpha2-CAR T cells based on survival rate at 3 months for both arms.

SECONDARY OBJECTIVES:

  1. Describe persistence, expansion and phenotype of endogenous and IL13Ralpha2-CAR CAR T cells in peripheral blood (PB), tumor cyst fluid (TCF) and cerebral spinal fluid (CSF), when available.

II. Describe cytokine levels in PB, TCF, and CSF (when available) over the study period for each arm.

III. Estimate the rate of disease response by Response Assessment in Neuro-Oncology Leptomeningeal Metastases (RANO LM) criteria by study arm where an active response is defined as stable disease or better.

IV. Estimate rate of progression free survival at 3 months by study arm. V. Estimate rate of overall survival (OS) at 3 months by study arm.

VI. In study participants who undergo post therapy biopsy/resection or autopsy:

VIa. Evaluate IL13Ralpha2-CAR T cell persistence in the tumor tissue and the location of the IL13Ralpha2-CAR T cells with respect to the infusion site.

VIb. Evaluate IL13Ralpha2 antigen on tumor tissue pre- and post-CAR T cell therapy.

VII. Use biomathematical modeling of tumor growth to evaluate benefit of treatment.

OUTLINE:

Patients receive IL13Ralpha2-CAR T cells ICV over 5 minutes on day 1. Treatment repeats every 7 days for 4 cycles in the absence of disease progression or unacceptable toxicity. Patients may receive additional cycles per the discretion of the principal investigator.

After completion of study treatment, patients are followed up at 30 days, months 3, 6, 9, 12, and then yearly for up to 15 years.

Being tested
IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-Lymphocytes
Medical subject headings
Ependymoma, Glioblastoma, Medulloblastoma, Meningeal Carcinomatosis

What participants receive

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

  • IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-LymphocytesBiological

    Also called Autologous IL13(EQ)BBzeta/CD19t+ TCM-enriched T Cells

    Given ICV

Study groups in NCT04661384
Study groupRoleWhat they receive
Treatment (IL13Ralpha2-CAR T cells)ExperimentalPatients receive IL13Ralpha2-CAR T cells ICV over 5 minutes on day 1. Treatment repeats every 7 days for 4 cycles in the absence of disease progression or unacceptable toxicity.
Receives: Biological: IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-Lymphocytes

What is being measured

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

  1. Incidence of adverse events

    Will be assessed using the NCI's Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

    Measured: Up to 15 years

  2. Overall survival

    The length of time from either the date of diagnosis or the start of treatment for a disease, such as cancer, that patients diagnosed with the disease are still alive.

    Measured: At 3 months

Secondary outcomes (11)
  1. CAR T cell detected in tumor cyst fluid (TCF), peripheral blood (PB), and cerebrospinal fluid (CSF)

    Measured by absolute number per ul by flow.

    Measured: Up to 4 cycles (4 weeks)

  2. Endogenous T cell levels detected in tumor cyst fluid (TCF), peripheral blood (PB), and cerebrospinal fluid (CSF)

    Measured by absolute number per ul by flow.

    Measured: Up to 4 cycles (4 weeks)

  3. Cell phenotype detected in tumor cyst fluid (TCF), peripheral blood (PB), and cerebrospinal fluid (CSF)

    Measured by absolute number per ul by flow.

    Measured: Up to 4 cycles (4 weeks)

  4. Cytokine levels in PB, TCF and CSF

    Measured: Up to 4 cycles (4 weeks)

  5. Disease response

    Measured by Response Assessment in Neuro-Oncology Criteria (RANO LM).

    Measured: Up to 15 years

  6. Time to progression

    Progression defined by RANO LM criteria.

    Measured: Up to 15 years

  7. Overall survival

    Measured: Up to 15 years

  8. CAR T and endogenous cells detected in tumor tissue

    Detected in tumor tissue by immunohistochemistry (IHC).

    Measured: Baseline

  9. IL13Ralpha2 antigen expression levels in tumor tissue

    Measured through the pathology H-score.

    Measured: Baseline

  10. Biomathematical modeling of tumor growth

    Will assess tumor growth parameter based on serial brain magnetic resonance imaging (MRI)s. Tumor volumes will be computed for each MRI study beginning with the pre-surgical MRI and will be used to compute growth rates, measured as change in tumor volume over time. Tumor volumes will be derived from T1- and T2-weighted MRI sequences.

    Growth rates will be compared prior to, during, and following CAR T-cell treatment for 1) each individual patient and 2) averaged for each dose level.

    Measured: Up to 15 years

  11. Biomathematical modeling of perfusion/diffusion

    Will assess perfusion/ diffusion parameter based on serial brain magnetic resonance imaging (MRI)s. Perfusion and diffusion analysis will include the blood plasma-tissue rate transfer constant (Ktrans), cerebral blood volume (vp), contrast accumulation rate (lambda), and the apparent diffusion coefficient (ADC). Perfusion/diffusion analysis will be derived from T1-weighted dynamic contrast enhancement (DCE), T2-weighted dynamic susceptibility (DSC), and diffusion weighted imaging (DWI) sequences. The mean value of the perfusion/diffusion parameters from the contrast enhancing lesion volume will be extracted for each MRI study.

    Measured: Up to 15 years

Timeline

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

  1. First posted10 Dec 2020
  2. Study start5 Mar 2021
  3. Primary completion12 Jan 2027 (estimated)
  4. Study completion12 Jan 2027 (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 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
10 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04661384
Sponsor's protocol ID
19497
Other IDs
NCI-2020-06010, 19497, P30CA033572
Status last verified
Mar 2026
First submitted
16 Sep 2020
Last updated
5 Mar 2026
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing IL13Ralpha2-specific Hinge-optimized 41BB-co-stimulatory CAR Truncated CD19-expressing Autologous T-Lymphocytes in people with Ependymoma and Glioblastoma, run by City of Hope Medical Center 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 8 inclusion and 15 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 5 Mar 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?

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?

Incidence of adverse events (time frame: Up to 15 years). The study lists 2 primary outcomes in all. 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 5 Mar 2026.

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