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NCT05625594 · City of Hope Medical Center

Intracerebroventricular Administration of CD19-CAR T Cells (CD19CAR-CD28-CD3zeta-EGFRt-expressing Tn/Mem T-lymphocytes) for the Treatment of Central Nervous System Lymphoma

What this study is about

This phase I trial tests the safety, side effects, and best dose of intracerebroventricularly (ICV) administered CD19-chimeric antigen receptor (CAR) T cells in treating patients with central nervous system (CNS) lymphoma. CAR T cell therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells.

View original scientific description

This phase I trial tests the safety, side effects, and best dose of intracerebroventricularly (ICV) administered CD19-chimeric antigen receptor (CAR) T cells in treating patients with central nervous system (CNS) lymphoma. CAR T cell therapy is a type of treatment in which a patient's T cells (a type of immune system cell) are changed in the laboratory so they will attack cancer cells. T cells are taken from a patient's blood. Then the gene for a special receptor that binds to a certain protein, CD19, on the patient's cancer cells is added to the T cells in the laboratory. The special receptor is called a chimeric antigen receptor (CAR). Large numbers of the CAR T cells are grown in the laboratory and given to the patient by infusion for treatment of certain cancers. ICV is an injection technique that delivers the CD19-CAR T cells directly into the cerebrospinal fluid (which flows in and around the hollow spaces of the brain and spinal cord, and the thin layers of tissue that cover and protect the brain and spinal cord) in the brain, through a surgically placed catheter. Giving CD19-CAR T cells ICV may be more effective at treating patients with CNS lymphoma than giving them via other methods.

Who can participate

This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.

Inclusion criteria

  • Participant must have the ability to understand and the willingness to sign a written informed consent
  • Note: For research participants who do not speak English, a short form consent may be used with a City of Hope (COH) certified interpreter/translator to proceed with screening and leukapheresis, while the request for a translated full consent is processed. However, the research participant can proceed with lymphodepletion (if applicable) and CAR T cell infusion only after the translated full consent form is signed
  • Agreement to allow the use of archival tissue from diagnostic tumor biopsies. If unavailable exceptions may be granted with study principal investigator (PI) approval
  • Age \>= 18 years
  • Eastern Cooperative Oncology Group (ECOG) performance status 0 - 2
  • Documented primary CNS lymphoma. Progression must be determined radiographically. Participant must have measurable disease which could be a measurable lymphomatous mass or, in the case of leptomeningeal only disease, measurable lymphoma cells in CSF by flow cytometry
  • Patients with secondary CNS lymphoma with CNS only relapse, confirmed by PET-CT, may also be eligible, per PI discretion.
  • Documented current CD19+ tumor expression if prior CD19 directed therapy was used
  • Participant must have received and failed or have been intolerant to CNS directed therapy like high dose methotrexate or high dose cytarabine based regimens. Participants are not required to have failed all of these agents if, in the investigator's opinion, they would benefit from treatment on the current protocol
  • Prior CAR T cell therapy is allowed if at least 3 months have elapsed prior to leukapheresis procedure
  • If participant received prior CD19-CAR T cells persistence must be evaluated and found to be \<5% prior to leukapheresis procedure
  • No known contraindications to leukapheresis, steroids or tocilizumab
  • Participant of reproductive potential must agree to use acceptable birth control methods throughout study therapy and for 3 months after final dose of study treatment
  • Total serum bilirubin =\< 2.0 mg/dL (within 14 days of signing the screening and leukapheresis consent)
  • Patients with Gilbert syndrome may be included if their total bilirubin is =\< 3.0 x upper limit of normal (ULN) and direct bilirubin =\< 1.5 x ULN
  • Aspartate aminotransferase (AST) =\< 2.5 x ULN (within 14 days of signing the screening and leukapheresis consent)
  • Alanine aminotransferase (ALT) =\< 2.5 x ULN (within 14 days of signing the screening and leukapheresis consent)
  • Creatinine clearance of \>= 50 mL/min per the Cockcroft-Gault formula (within 14 days of signing the screening and leukapheresis consent)
  • Cardiac function (12 lead-electrocardiogram \[ECG\]) without acute abnormalities requiring investigation or intervention (within 14 days of signing the screening and leukapheresis consent)
  • Absolute neutrophil count \>= 750/uL (within 14 days of signing the screening and leukapheresis consent)
  • Hemoglobin (Hb) \>= 8 g/dl (within 14 days of signing the screening and leukapheresis consent)
  • Platelet count \>= 50,000/uL (within 14 days of signing the screening and leukapheresis consent)
  • Ejection fraction measured by echocardiogram or multigated acquisition scan (MUGA) \> 40% (evaluation within 6 weeks of screening does not need to be repeated) (within 14 days of signing the screening and leukapheresis consent)
  • Oxygen (O2) saturation \> 92% not requiring oxygen supplementation (within 14 days of signing the screening and leukapheresis consent)
  • Seronegative for HIV qPCR, HCV\*, active HBV (Surface Antigen Negative), and syphilis (RPR)
  • If positive, Hepatitis C RNA quantitation must be performed. OR
  • If seropositive for HIV, HCV or HBV, nucleic acid quantitation must be performed. Viral load must be undetectable. Meets other institutional and federal requirements for infectious disease titer requirements Note Infectious disease testing to be performed within 28 days prior to enrollment.
  • Women of childbearing potential (WOCBP): negative urine or serum pregnancy test (within 14 days of signing the screening and leukapheresis consent)
  • If the urine test is positive or cannot be confirmed as negative, a serum pregnancy test will be required

Exclusion criteria

  • Participant has not yet recovered from toxicities of prior therapy
  • Presence of systemic lymphoma
  • Participant with clinically significant arrhythmia or arrhythmias not stable on medical management within two weeks of signing the screening and leukapheresis consent
  • Participant with known history or prior diagnosis of optic neuritis or other immunologic or inflammatory disease affecting the central nervous system, including seizure disorder
  • Active autoimmune disease requiring systemic immunosuppressive therapy
  • Needing dexamethasone more than 4mg/day (or equivalent) within 72 hours prior to leukapheresis or CAR T cell infusion
  • History of allergic reactions attributed to compounds of similar chemical or biologic composition or other agents used in this study
  • Known bleeding disorders (e.g., von Willebrand's disease) or hemophilia
  • History of stroke or intracranial hemorrhage within 6 months prior to signing the screening and leukapheresis consent
  • History of other malignancies, except for malignancy surgically resected (or treated with other modalities) with curative intent with no known active disease present for \>= 3 years, basal cell carcinoma of the skin or localized squamous cell carcinoma of the skin
  • Uncontrolled active infection
  • Active hepatitis B or hepatitis C infection: subjects who are hepatitis B core antibody (anti-HBc) positive and who are surface antigen negative will need to have a negative polymerase chain reaction (PCR) result. Those who are hepatitis B surface antigen (HbsAg) positive or hepatitis B PCR positive will be excluded
  • Subjects who are hepatitis B core antibody positive (or have a known history of hepatitis B virus \[HBV\] infection) should be monitored quarterly with a quantitative PCR test for HBV deoxyribonucleic acid (DNA). HBV monitoring should last until 12 months after last dose of study drug. Any subject with a rising viral load (above lower limit of detection) should discontinue study drug and have antiviral therapy instituted and a consultation with a physician with expertise in managing hepatitis B. Subjects who are core antibody (Ab) positive at study enrollment are strongly recommended to start Entecavir before start and until completion of study treatment
  • Subjects who are hepatitis C antibody positive will need to have a negative PCR result. Those who are hepatitis C PCR positive will be excluded
  • Subjects who are hepatitis C antibody positive will need to have a negative PCR result. Those who are hepatitis C PCR positive will be excluded
  • Human immunodeficiency virus (HIV) infection
  • Active significant bacterial, fungal or viral (other than those listed) infections
  • Any other condition that would, in the investigator's judgment, contraindicate the subject's participation in the clinical study due to safety concerns with clinical study procedures
  • 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)

Where

  • Duarte, California

Frequently asked questions

What is a clinical trial?

A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.

Is it safe to participate?

Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.

Will I be compensated?

Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.

Will I receive a placebo instead of treatment?

When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.

Can I leave a trial if I change my mind?

Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.

How long does a clinical trial last?

Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.

Data: ClinicalTrials.gov · synced Jun 3, 2026 · Source of record for eligibility and locations

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1 of 20 participants interested
5% interest

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RECRUITING

Duarte

California

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What participation can include

  • Study-related care provided by the research team
  • Close monitoring by medical professionals
  • Possible compensation for time and travel*
  • The option to withdraw at any time
  • Contributing to medical research that may help future patients

*Compensation varies by study. Confirm details with coordinator.

Typical next steps

  1. 1.Submit this form
  2. 2.Phone screening
  3. 3.In-person assessment if eligible
  4. 4.Begin participation

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Looking for Central Nervous System Lymphoma Treatment in Duarte?

Join others in California exploring innovative treatment options through clinical research

Central Nervous System Lymphoma Treatment Options in Duarte, California

If you're searching for Central Nervous System Lymphoma treatment in Duarte, participating in a clinical research study may provide access to innovative approaches under expert medical supervision. This study is actively recruiting participants in Duarte and surrounding areas.

Clinical trials offer participants the opportunity to receive cutting-edge treatments while contributing to medical research that may help future patients with Central Nervous System Lymphoma. All study-related care is provided at no cost to participants.

Local Sites
1 locations in California
Now Enrolling
Up to 20 participants
Quick Start
Screening available now

Why Consider a Clinical Trial for Central Nervous System Lymphoma?

Potential Benefits

  • Access to new treatment approaches before public availability
  • Close monitoring by experienced medical professionals
  • Study-related care provided at no cost
  • Contribute to medical research for Central Nervous System Lymphoma

What to Expect

  • Initial screening to determine eligibility
  • Regular check-ups and monitoring visits
  • Possible compensation for time and travel
  • You can withdraw at any time

Frequently Asked Questions About This Central Nervous System Lymphoma Study

Important Clinical Trial Information

This information is provided for educational purposes and does not constitute medical advice. Clinical trial participation involves potential risks and benefits. Eligibility requirements apply and will be assessed during the screening process.

Study identifier: NCT05625594. For complete study details, visit ClinicalTrials.gov. Always consult with your healthcare provider before making decisions about your medical care or participating in clinical research.