- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05298995
GD2-CAR T Cells for Pediatric Brain Tumours
Phase I Study of Anti-GD2 Chimeric Antigen Receptor-Expressing T Cells in Pediatric and Young Adult Patients Affected by Relapsed/Refractory Central Nervous System Tumors
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The study will consist of a Phase I, dose escalation phase aimed at evaluating the safety and feasibility of intravenous injections of autologous iC9-GD2-CAR T-cells in patients with refractory/relapsed malignant CNS tumors.
Considering the peculiar potential risks associated with the treatment of CNS tumors, the study has been designed to enrol patients in 3 different arms depending on the histology and location of the disease. This model of enrollment is aimed at testing the safety sequentially, starting from categories of patients at lower risk of severe intracranial hypertension first, and subsequently proceeding with patients at proportionally increased risk. In particular, the three arms explored will be relapsed or refractory:
- ARM A: MB/other embryonal tumor
- ARM B: Hemispheric HGG
- ARM C: Thalamic HGG, DMG, DIPG and other rare CNS tumors not included in Arm A and B
Eligible patients will undergo leukapheresis in order to harvest T cells, which will be manufactured to obtain the autologous CAR T product iC9-GD2-CAR T-cells, a GD2-targeting CAR T product. Briefly, the patients will be treated with a lymphodepleting regimen containing conventional chemotherapic agents and subsequently will receive a single infusion of GD2-CART01.
Moreover, the product contains a suicide gene safety switch (namely inducible Caspase 9): in case of relevant toxicities, the patient will receive the dimerizing agent in order to activate the apoptotic pathway in the infused T cells.
After infusion of CAR T cells, the patients will enter a 5-year active follow-up period (for disease follow-up). A conventional 15-year follow-up will be performed as per regulatory requirements in patients receiving gene therapy.
Study Type
Enrollment (Estimated)
Phase
- Phase 1
Contacts and Locations
Study Contact
- Name: Francesca Del Bufalo, MD
- Phone Number: 2739 00396859
- Email: francesca.delbufalo@opbg.net
Study Contact Backup
- Name: Angela Mastronuzzi, MD, PhD
- Phone Number: 4647 00396859
- Email: angela.mastronuzzi@opbg.net
Study Locations
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Roma, Italy, 00165
- Recruiting
- Ospedale Pediatrico Bambino Gesù
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Principal Investigator:
- Franco Locatelli, MD PhD
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Contact:
- Francesca del Bufalo, MD PhD
- Phone Number: 2739 0039-066859
- Email: francesca.delbufalo@opbg.net
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Contact:
- Angela Mastronuzzi, MD PhD
- Phone Number: 4647 0039-066859
- Email: angela.mastronuzzi@opbg.net
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Imaging assessments performed within 14 days of start of treatment
- Age: 6months-30years
- Measurable or evaluable disease on at least 2 dimensions on MRI at the time of treatment enrollment
- Karnofsky/Lansky≥60
- Recoverfromthetoxiceffectsofpreviousradiationandchemotherapies:grade4and or 3 non-hematologic toxicities must have resolved to grade ≤ 2; in presence of chronic complications (i.e. treatment-associated thrombocytopenia), patient must be clinically stable, according to the opinion of the treating physicians, and meet all other eligibility criteria
- Positioning of an implantable intraventricular access device (CodmanHolterRickham reservoir, Integra LifeSciences, NJ, U.S.A) and a microdialysis probe (71 high cutoff microdialysis bolt catheter, M Dialysis AB, Stockholm Sweden)
- Written and signed informed consent from patients, parents or legal guardians. For subjects < 18 year-old their legal guardian must give informed consent. In addition, pediatric subjects will be included in age-appropriate discussion and written informed assent will be obtained for those greater than or equal to 7 years of age, when appropriate
- Patients of childbearing or child-fathering potential must be willing to practice birth control from the time of enrollment on this study and for four months after receiving the preparative regimen
- Females of childbearing potential must have a negative pregnancy test because of the potentially dangerous effects on the fetus
Exclusion Criteria:
- Pregnant or lactating women
- Severe,uncontrolledactiveinfections
- HIV or active HCV and/or HBV infection
- Rapidly progressive disease with life expectancy < 6 weeks
- Historyofgrade3or4hypersensitivitytomurineprotein-containingproducts
- Hepatic function: inadequate liver function defined as total bilirubin > 4x upper limit of normal (ULN) or transaminase (ALT and AST) > 6 x ULN based on age and laboratory specific normal ranges
- Renal function: serum creatinine > 3x ULN for age
- Blood oxygen saturation < 90%
- Cardiac function: left ventricular ejection fraction lower than 45% by ECHO
- Marrow function: absolute neutrophils count (ANC) lower than 500/mm3 and/or platelets lower than 20.000 (not reached by transfusion)
Congestive heart failure, cardiac arrhythmia, psychiatric illness, or social situations that would limit compliance with study requirements or in the opinion of the principal investigator (PI) would pose an unacceptable risk to the subject. 12.Concurrent or recent prior therapies, before infusion:
- If receiving glucocorticoids, patient must be on a stable or weaning dose for at least 7 days prior to infusion. Recent or current use of inhaled/topical/non- absorbable steroids is not exclusionary. Subjects receiving steroid therapy at physiologic replacement doses only are allowed provided there has been no increase in dose for at least 2 weeks prior to starting apheresis
- Systemic chemotherapy in the 3 weeks preceding infusion
- Immunosuppressive agents less than or equal to 30 days
- Radiation therapy must have been completed at least 6 weeks prior to enrollment
- Otheranti-neoplasticinvestigationalagentscurrentlyorwithin30dayspriorto start of protocol therapy
13.Patient-derived GD2-CART01 production failure: vitality <80%, CD3+ cells <80%, CD3+ CAR+ cells <20%, CD3+ CAR+ antitumor activity <60% in functional co-culture assay at an Effector: Target ratio 1:1, viable CAR+ cells upon AP1903 exposition >20%, RCR positivity, Vector Copy Number >10, non-sterility, endotoxin contamination (> 1 EU/ml)
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: ARM A: MB/other embryonal tumor
After a lymphodepleting regimen, patients affected by relapsed/refractory MB/other embryonal tumor will receive 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells.
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Following a lymphodepleting treatment with conventional chemotherapy, patients will be treated with 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells, infused i.v. as a single dose
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Experimental: ARM B: Hemispheric HGG
After a lymphodepleting regimen, patients affected by relapsed/refractory hemispheric high grade glioma will receive 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells.
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Following a lymphodepleting treatment with conventional chemotherapy, patients will be treated with 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells, infused i.v. as a single dose
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Experimental: ARM C: Thalamic HGG, DMG, DIPG and other rare CNS tumors not included in Arm A and B
After a lymphodepleting regimen, patients affected by relapsed/refractory thalamic HGG, DMG, DIPG and other rare CNS tumors not included in Arm A and B will receive 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells.
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Following a lymphodepleting treatment with conventional chemotherapy, patients will be treated with 1.0 to 6.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells, infused i.v. as a single dose
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Safety and definition of the MTD/RD
Time Frame: 4 weeks after CAR T cell infusion
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To evaluate the safety of the infusion of iC9-GD2-CAR-T cells at different escalating/de-escalating doses and establish the dose limiting toxicity (DLT) and the maximum tolerated dose/recommended dose (MTD/RD) of the cellular product
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4 weeks after CAR T cell infusion
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
In vivo expansion and persistence
Time Frame: Up to 5 years
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To assess the in vivo persistence and expansion of the infused CAR T-cells in the peripheral blood (PB) and CSF using immunoassays and transgene detection (Droplet PCR), both for the whole population and the specific T cells subsets
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Up to 5 years
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Tumor infiltration
Time Frame: Up to 5 years
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To evaluate the tumor infiltration of the infused T cells by immunohistochemistry (IHC), flow cytometry and/or transgene detection (Droplet PCR), whenever the tumor sample is available after the treatment
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Up to 5 years
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iC9-GD2-CAR-T cells clearance after AP1903 infusion
Time Frame: Up to 5 years
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To assess the kinetic of iC9-GD2-CAR-T cells clearance after AP1903 infusion
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Up to 5 years
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Serum cytokine profiling
Time Frame: Up to 3 months
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To define the serum and CSF cytokine profile and its correlation with CRS in order to identify a possible predictive profile
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Up to 3 months
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Time to progression (TTP)
Time Frame: Up to 5 years
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To evaluate the TTP after infusion
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Up to 5 years
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Event-free survival (EFS)
Time Frame: Up to 5 years
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To evaluate the EFS after infusion
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Up to 5 years
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Overall survival (OS)
Time Frame: Up to 5 years
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To evaluate the OS after infusion
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Up to 5 years
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Disease outcome according to the Response assessment in pediatric neuro-oncology (RAPNO) criteria
Time Frame: Up to 5 years
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umor response assessment through the RAPNO criteria
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Up to 5 years
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Collaborators and Investigators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Estimated)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
- Brain Diseases
- Central Nervous System Diseases
- Nervous System Diseases
- Neoplasms by Histologic Type
- Neoplasms by Site
- Neoplasms, Glandular and Epithelial
- Neoplasms, Neuroepithelial
- Neuroectodermal Tumors
- Neoplasms, Germ Cell and Embryonal
- Neoplasms, Nerve Tissue
- Nervous System Neoplasms
- Neuroectodermal Tumors, Primitive
- Brain Stem Neoplasms
- Infratentorial Neoplasms
- Neoplasms
- Glioma
- Brain Neoplasms
- Central Nervous System Neoplasms
- Medulloblastoma
- Diffuse Intrinsic Pontine Glioma
Other Study ID Numbers
- GD2CAR02
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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