ClinicalTrials.gg
Active, not recruitingNCT03373097Updated Sep 30, 2026

Anti-GD2 CAR T Cells in Pediatric Patients Affected by High Risk and/or Relapsed/Refractory Neuroblastoma or Other GD2-positive Solid Tumors

A Phase 1/2 interventional study of GD2-CART01 in Neuroblastoma, Neuroblastoma Recurrent and GD2-positive Solid Tumors, sponsored by Bambino Gesù Hospital and Research Institute. Active, not recruiting at 1 site in Italy. Open to participants aged 12 Months to 25 Years. Per ClinicalTrials.gov, last updated 2026-09-30.

Sponsored by Bambino Gesù Hospital and Research Institute · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
42
Allocation
Not applicable
Ages
12 Months to 25 Years
Sex
All
01

Study summary

The purpose of this study is to test the safety and efficacy of GD2-CART01, a CAR T cell treatment targeting GD2 in paediatric or young adult patients with High Risk and/or relapsed/refractory Neuroblastoma.

A small exploratory cohort of patients with GD2-positive tumors other than Neuroblastoma has also been included.

Read the detailed description

The study will consist of 2 phases, a Phase I or dose escalation phase and a Phase II or expansion phase. Paediatric or young adult patients with relapsed High Risk and/or relapsed/refractory Neuroblastoma will be enrolled in the study.

After completion of the phase I portion of the study, a small cohort of patients with GD2-positive tumors other than Neuroblastoma has also been included.

Eligible patients will undergo leukapheresis in order to harvest T cells, which will be manufactured to obtain the autologous CAR T product GD2-CART01, 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.

02

Conditions studied

  • Neuroblastoma
  • Neuroblastoma Recurrent
  • GD2-positive Solid Tumors
  • Osteosarcoma
  • Ewing Sarcoma
  • Sarcoma

Keywords

  • Neuroblastoma
  • GD2 CAR T cell
  • CAR T
  • GD2-positive solid tumors
  • Osteosarcoma
  • Ewing Sarcoma
  • GD2-positive sarcoma
03

In context

Neuroblastoma

675 studies on the registry are indexed under Neuroblastoma; 127 are open to participants now.

This study's planned enrollment of 42 is above the median of 32 across 507 interventional studies indexed under Neuroblastoma.

Browse Neuroblastoma studies →

Lead sponsor

Bambino Gesù Hospital and Research Institute is the lead sponsor of 54 studies on the registry; 10 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Months to 25 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Phase I The patient must meet the following eligibility inclusion criteria to be enrolled to receive treatment in the Phase I study.

  1. Diagnosis of NBL that have been treated with frontline therapy and is judged to be incurable, based upon the following criteria:

    1. Relapse after treatment, proved by a positive 123-I-mMIBG-scan
    2. Persistence/progression of disease after the initiation of the upfront treatment
  2. Patients must have measurable or evaluable disease at the time of treatment enrollment, as shown by bone marrow /aspirate, US or CT/MRI scan or by 123-I-mMIBG scan.
  3. Recover from the toxic effect of previous chemotherapies: grade 4 and or 3 non-hematologic toxicities must have resolved to grade ≤2; if some effects of the therapies have become chronic (i.e. treatment associated thrombocytopenia), the patient must be clinically stable, according to the opinion of the treating physicians, and meet all other eligibility criteria.
  4. Age: 12 months -18 years.
  5. Voluntary is given. For subjects \< 18 years old their legal guardian must give informed consent. Pediatric subjects will be included in age appropriate discussion and verbal assent will be obtained for those greater than or equal to 12 years of age, when appropriate.
  6. Clinical performance status: Patients > 16 years of age: greater than or equal to 60%; Patients less than or equal to 16 years of age: Lansky scale greater than or equal to 60%.
  7. Patients of child-bearing or child-fathering potential must be willing to practice from the time of enrollment on this study and for four months after receiving the preparative regimen.
  8. Females of must have a negative pregnancy test because of the potentially dangerous effects on the fetus.

Phase II

The patient must meet the following eligibility inclusion criteria to be enrolled to receive treatment in the Phase II study.

  1. Diagnosis of NBL that have been treated with frontline therapy and is judged to be incurable, based upon the following criteria:

    1. Relapse after first-line treatment, proved by a positive MIBG-scan
    2. Persistence/progression of disease after the initiation of the upfront treatment

    OR

  2. Diagnosis of extremely High Risk NBL at high risk of relapse, defined by stage III/IV and Myc-N amplification, at the end of the first-line treatment according to the Standard of Care, even if NED.

    OR

  3. Diagnosis of GD2+ tumors other than Neuroblastoma, considered incurable with conventional treatments by the treating physician.
  4. Patients with disease must have measurable or evaluable disease at the time of treatment enrollment, as shown by bone marrow biopsy/aspirate, US or CT/MRI scan or by MIBG-scan.
  5. Recover from the toxic effect of previous chemotherapies: grade 4 and or 3 non-hematologic toxicities must have resolved to grade ≤2; if some effects of the therapies have become chronic (i.e. treatment associated thrombocytopenia), the patient must be clinically stable, according to the opinion of the treating physicians, and meet all other eligibility criteria.
  6. Age: 12 months - 18 years.
  7. Voluntary informed consent is given. For subjects \< 18 years old their legal guardian must give informed consent. Pediatric subjects will be included in age appropriate discussion and verbal assent will be obtained for those greater than or equal to 12 years of age, when appropriate.
  8. Clinical performance status: Patients > 16 years of age: Karnofsky greater than or equal to 60%; Patients less than or equal to 16 years of age: Lansky scale greater than or equal to 60%.
  9. Patients of child-bearing 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.
  10. Females of child-bearing potential must have a negative pregnancy test because of the potentially dangerous effects on the fetus

Exclusion criteria

Exclusion Criteria:

  1. Pregnant or lactating women
  2. Severe, uncontrolled active intercurrent infections
  3. Active or infection
  4. infection
  5. Rapidly progressive disease with life-expectancy \< 6 weeks
  6. History of grade 3 or 4 to murine protein-containing products
  7. Hepatic function: Inadequate liver function defined as total > 4x (ULN) or transaminase ( and AST) > 6 x ULN based on age and laboratory specific normal ranges
  8. Renal function: serum creatinine > 3x ULN for age.
  9. Blood oxygen saturation \< 90%.
  10. Cardiac function: lower than 45% by ECHO.
  11. Marrow function: ANC lower than 500/mm3 and/or lower than 20.000 (not reached by transfusion).
  12. Congestive heart failure, cardiac arrhythmia, psychiatric illness, or social situations that would limit compliance with study requirements or in the opinion of the PI would pose an unacceptable risk to the subject.
  13. Untreated ; patients with previous CNS tumor involvement that has been treated and is stable for at least 6 weeks following completion of therapy are eligible.
  14. Concurrent or recent prior therapies, before infusion:

    1. Systemic (at a dose equivalent to or greater 2 mg/kg prednisone) in the 2 weeks before infusion. Recent or current use of inhaled/topical/non-absorbable steroids is not exclusionary.
    2. Systemic chemotherapy in the 2 weeks preceding infusion.
    3. agents less than or equal to 30 days.
    4. Radiation therapy must have been completed at least 3 weeks prior to enrollment.
    5. I131-MIBG therapy must have been completes at least 6 weeks prior to enrollment
    6. Anti-GD2 murine monoclonal antibody (ch14.18 antibody) in the 2 weeks preceding infusion
    7. Other anti-neoplastic agents currently or within 30 days prior to start of protocol therapy;
    8. Exceptions:
    9. 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
  15. Patient-derived GD2-CART01 production failure.
Terms in these criteria, in plain language(20)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Karnofsky performance status (KPS)

A 0–100 scale of how well someone can carry out everyday activities. 100 is no complaints and no signs of illness; 70 is able to look after yourself but not to work or keep up normal activity; 50 is needing considerable help and frequent medical care.

Studies often ask for 60 or 70 and above. Your doctor gives the score.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
42 participants (estimated)

Study arms

  • Experimental
    GD2-CART01

    After a lymphodepleting regimen the patients will receive 1.0 to 10.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells.

    Biological: GD2-CART01

Interventions

  • BiologicalGD2-CART01

    Following a lymphodepleting treatment with conventional chemotherapy, patients will be treated with 1.0 to 10.0 x 10⁶/kg GD2 Chimeric Antigen Receptor (CAR) positive T cells as a single dose.

06

What researchers measure

Primary outcomes

  1. Phase I - Identification of the dose limiting toxicity (DLT)

    Toxicity will be assessed according to the NCI Common Terminology Criteria for Adverse Events (CTCAE) scale, version 4 and the number of patients experiencing DLT will be evaluated

    Time frame: 4 weeks after T cell infusion

  2. Phase II - Antitumor effect

    Assessment of Best Overall Response (BOR)

    Time frame: Up to 6 months after T cell infusion

Secondary outcomes

  1. In vivo persistence/expansion of infused CAR T cell

    Detection of infused CAR T cell in the peripheral and bone marrow blood

    Time frame: UP to 5 years

  2. Serum cytokine profiling

    Assessment of the seric cytokines profile

    Time frame: First 2 weeks after T cell infusion

  3. Time To Progression (TTP)

    Time frame: Up 5 years after T cell infusion

  4. Event-Free Survival (EFS)

    Time frame: Up 5 years after T cell infusion

  5. Overall Survival (OS)

    Time frame: Up 5 years after T cell infusion

  6. Disease outcome according to INRC vs irRC

    Tumor response assessment through the two different criteria

    Time frame: Up to 5 years

  7. Elimination of CAR T cell through iC9 in case of toxicity

    Assessment of the kinetic of CAR T cell elimination after infusion of the dimerizer

    Time frame: Up to 15 years

07

Study locations

1 site
08

References and documents

Publications

  • Locatelli F, Pagliara D, De Ioris MA, Becilli M, Del Baldo G, Serra A, Mastronuzzi A, Cefalo MG, Li Pira G, Leone G, Bertaina V, Fabozzi F, Di Nardo M, Rosignoli C, D'Andrea ML, Crocoli A, Vennarini S, Sinibaldi M, Di Cecca S, Guercio M, Iaffaldano L, Lucarelli B, Algeri M, Merli P, Colafati GS, De Angelis B, Quintarelli C, Del Bufalo F. GD2-targeting CAR T cells in high-risk neuroblastoma: a phase 1/2 trial. Nat Med. 2025 Nov;31(11):3689-3699. doi: 10.1038/s41591-025-03874-6. Epub 2025 Aug 21. PubMed 40841488 ↗
  • Yeku OO, Longo DL. CAR T Cells for Neuroblastoma. N Engl J Med. 2023 Apr 6;388(14):1328-1331. doi: 10.1056/NEJMe2300317. No abstract available. PubMed 37018497 ↗
  • Del Bufalo F, De Angelis B, Caruana I, Del Baldo G, De Ioris MA, Serra A, Mastronuzzi A, Cefalo MG, Pagliara D, Amicucci M, Li Pira G, Leone G, Bertaina V, Sinibaldi M, Di Cecca S, Guercio M, Abbaszadeh Z, Iaffaldano L, Gunetti M, Iacovelli S, Bugianesi R, Macchia S, Algeri M, Merli P, Galaverna F, Abbas R, Garganese MC, Villani MF, Colafati GS, Bonetti F, Rabusin M, Perruccio K, Folsi V, Quintarelli C, Locatelli F; Precision Medicine Team-IRCCS Ospedale Pediatrico Bambino Gesu. GD2-CART01 for Relapsed or Refractory High-Risk Neuroblastoma. N Engl J Med. 2023 Apr 6;388(14):1284-1295. doi: 10.1056/NEJMoa2210859. PubMed 37018492 ↗
  • Tumino N, Weber G, Besi F, Del Bufalo F, Bertaina V, Paci P, Quatrini L, Antonucci L, Sinibaldi M, Quintarelli C, Maggi E, De Angelis B, Locatelli F, Moretta L, Vacca P, Caruana I. Polymorphonuclear myeloid-derived suppressor cells impair the anti-tumor efficacy of GD2.CAR T-cells in patients with neuroblastoma. J Hematol Oncol. 2021 Nov 12;14(1):191. doi: 10.1186/s13045-021-01193-0. PubMed 34772439 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Jan 2018 (actual). Primary completion is estimated for Dec 2026, 107 months after the start.

Of 35 phase 1/2 interventional studies under Neuroblastoma, half reached primary completion within 80 months of starting (the median), counting those still running; a quarter within 62 and three quarters within 115. This study's planned 107 months is above that.

How these figures are worked out, and which studies are left out of them.

Registered
Dec 6, 2017
First posted
Dec 14, 2017
StartActual
Jan 5, 2018
Primary completionEst.
Dec 2026
CompletionEst.
Dec 2027
Last update
Sep 30, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Publications
3 publications citing this study linked from PubMed, e.g. PubMed 40841488 ↗
Sep 30, 2026
Show all 1 update
  1. Sep 30, 2026
    Publications 3 publications citing this study linked from PubMed, e.g. PubMed 40841488 ↗
    + 5 other changes: index terms, identifiers, verification date, oversight details and site details

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT03373097
Lead sponsor
Bambino Gesù Hospital and Research Institute
Responsible party
Franco Locatelli (Haematology-Oncology Department Chief, Bambino Gesù Hospital and Research Institute) — Principal investigator
First posted
Dec 14, 2017
Start date
Jan 5, 2018
Primary completion
Dec 2026 (estimated)
Completion
Dec 2027 (estimated)
Last update
Sep 30, 2026

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

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