ClinicalTrials.gg
CompletedNCT03448393Updated Jun 4, 2025Results posted

CD19/CD22 Chimeric Antigen Receptor (CAR) T Cells in Children and Young Adults With Recurrent or Refractory CD19/CD22-expressing B Cell Malignancies

A Phase 1 interventional study of CD19/CD22 CAR T-Cells and Fludarabine in Lymphoma, Non-Hodgkin, Leukemia, Lymphocytic, B Cell and B-Cell Lymphoma, sponsored by National Cancer Institute (NCI). Completed at 1 site in United States. Open to participants aged 3 Years to 39 Years. Per ClinicalTrials.gov, last updated 2025-06-04.

Primary conditionLymphoma, B-CellRegistry: Lymphoma, Non-HodgkinReclassifiedWhy we changed it
Registry
Lymphoma, Non-Hodgkin — the first condition term the registry derived for this study.
ClinicalTrials.gg
Lymphoma, B-Cell
Why
  1. The study's listed conditions name Lymphoma, B-Cell, a narrower term within Lymphoma, Non-Hodgkin.
Confidence
High: the new condition is named in the study's own listed conditions. Of 351 hand-checked studies reclassified this way, 68% were exactly right and 84% in the right disease family; the registry's first term was right for 5% (measured 2026-10-21). How we classify →
Wrong?
Tell us the study's main condition →

Sponsored by National Cancer Institute (NCI) · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
54
Allocation
Non-randomized
Ages
3 Years to 39 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 27 studies in Lymphoma, B-Cell by National Cancer Institute (NCI) — 4 open to participants now, 11 under way, 1 of them phase 3. Lymphoma, B-Cell · National Cancer Institute (NCI).

Enrollment
6th of 26
54 · median 32
Started
2018
with 1 other
Phase 1
18 of 27
2 open now
Registered
16th of 27
by date

Among the 27 studies in Lymphoma, B-Cell by National Cancer Institute (NCI), this one is the 6th largest by enrollment of the 26 interventional ones, is one of 2 that started in 2018, is one of 18 in phase 1, and was the 16th registered.

By phase

27 studies; the count open now beside each. This study's row is marked.

Phase 1this study18 · 2 open
Phase 25 · 1 open
Phase 1/22 · 1 open
Observational1 · 0 open
Phase 31 · 0 open

By the year they started

First in 1991; this study’s year is marked. 2 started in 2018.

Size and results

Median enrollment 32 across the 26 interventional studies, 902 across the 1 observational. Of the 15 that completed or were terminated, 8 (53%) have results posted.

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Watch this landscapeDownload CSVWith an account: a weekly mail of what changed among 27 studies in Lymphoma, B-Cell by National Cancer Institute (NCI), or all of them as a file.
02

Study summary

Background:

B-cell leukemias and lymphomas are cancers that are often difficult to treat. The primary objective of this study is to determine the ability to take a patient's own cells (T lymphocytes) and grow them in the laboratory with the cluster of differentiation 19 (CD19/cluster of differentiation 22-chimeric antigen receptor (CD22-CAR) gene through a process called 'lentiviral transduction (also considered gene therapy) and growing them to large numbers to use as a treatment for hematologic cancers in children and young adults.. Researchers want to see if giving modified CD19/CD22-CAR T cells to people with these cancers can attack cancer cells. In addition, the safety of giving these gene modified cells to humans will be tested at different cell doses. Additional objectives are to determine if this therapy can cause regression of B cell cancers and to measure if the gene modified cells survive in patients' blood.

Objective:

To study the safety and effects of giving CD19/CD22-CAR T cells to children and young adults with B-cell cancer.

Eligibility:

People ages 3-39 with certain cancers that have not been cured by standard therapy. Their cancer tissue must express the CD19 protein.

Design:

A sample of participants blood or bone marrow will be sent to National Institutes of Health (NIH) and tested for leukemia.

Participants will be screened with:

Medical history

Physical exam

Urine and blood tests (including for human immunodeficiency virus (HIV)

Heart and eye tests

Neurologic assessment and symptom checklist.

Scans, bone marrow biopsy, and/or spinal tap

Some participants will have lung tests.

Participants will repeat these tests throughout the study and follow-up.

Participants will have leukapheresis. Blood will be drawn from a plastic tube (intravenous (IV) or needle in one arm then go through a machine that removes lymphocytes. The remaining blood will be returned to the participant's other arm.

Participants will stay in the hospital about 2 weeks. There they will get:

Two chemotherapy drugs by IV

Their changed cells by IV

Standard drugs for side effects

Participants will have frequent follow-up visits for 1 year, then 5 visits for the next 4 years. Then they will answer questions and have blood tests every year for 15 years.

...

Read the detailed description

Background:

  • Acute lymphoblastic leukemia (ALL) accounts for approximately 25% of childhood cancer. Survival rates have improved, but outcomes for some subgroups, including infants and young adults remain poor, and survival for patients who relapse is \< 50%, despite allogeneic stem cell transplant following second remission.
  • Cluster of differentiation 19 (CD19 immune escape has been observed by several groups following CD19-chimeric antigen receptor (CAR) therapy for B-ALL. Investigation of this phenomenon reveals a complex biology responsible for loss or downregulation of CD19 expression observed in these cases.
  • Sequential therapy using cluster of differentiation 22 (CD22)-CARs to treat CD19 dim/lo escape is associated with rapid development of resistance due to CD22 downregulation. This trial will test whether simultaneous targeting of CD19 and CD22 using a novel bivalent CD19/22-CAR is safe and feasible.

Objectives:

-Assess the safety of administering escalating doses of autologous CD19/CD22-CAR engineered T cells that meet established release specifications in children and young adults with CD19+CD22+ B cell ALL, isolated central nervous system (CNS) ALL, or lymphoma following a cyclophosphamide/fludarabine conditioning regimen.

Eligibility:

-Participants between >= 3 years and \<= 39 years of age, with CD19+/CD22+ B cell ALL, isolated CNS ALL, or lymphoma who have relapsed or have refractory disease after at least one standard chemotherapy regimen and one salvage regimen, with no alternative curative options who meet standard Phase I eligibility criteria.

Design:

  • Phase I, 3 + 3 dose escalation design using the following dose levels: -1: 1 x 10\^5 transduced T cells/kg (+/- 20%); 1: 3 x 10\^5 transduced T cells/kg (+/- 20%); 2: 1 x 10\^6 transduced T cells/kg; and 3: 3 x 10\^6 transduced T cells/kg (+/- 20%); 4: 1 x 10\^7 transduced T cells/kg (+/- 20%).
  • Participants will receive a lymphodepleting preparative regimen of fludarabine (25 mg/m\^2/day (d) x 3 on Days -4, -3, -2) and cyclophosphamide (900 mg/m\^2/d x 1 on Day -2) followed by infusion of CD19/CD22-CAR T-cells on D0. Participants who are CAR pretreated (with exception for those with an interval hematopoietic stem cell transplantation (HSCT) will receive increased lymphodepleting preparative regimen of fludarabine (30\^mg/m\^2/d x 4 on Days -5, -4, -3, -2) and cyclophosphamide (600 mg/m\^2/d x 2 on Days -3, -2) followed by infusion of CD19/CD22-CAR T-cells on D0. If fludarabine is unavailable, pentostatin may be given as an alternative.
  • Patients will be evaluated sequentially for toxicity, antitumor effects, CAR expansion and persistence, as well as research correlatives.
03

Conditions studied

  • Lymphoma, Non-Hodgkin
  • Leukemia, Lymphocytic, B Cell
  • B-Cell Lymphoma
  • B-Cell Leukemia
  • Acute Lymphoid Leukemia
  • B-Non Hodgkin Lymphoma
  • B-NHL
  • B-All
  • Acute Lymphoblastic Leukemia
  • Acute Lymphocytic Leukemia

Keywords

  • B-Non Hodgkin Lymphoma
  • Acute Lymphocytic Leukemia
  • Acute Lymphoblastic Leukemia
  • B-precursor ALL
  • B-All
  • Philadelphia chromosome + ALL
  • Lymphoma
  • CD-22 Expressing Tumor
  • CD-19 expressing tumor
  • Adoptive Immunotherapy
04

In context

Lymphoma, B-Cell Reclassified

885 studies on the registry are indexed under Lymphoma, B-Cell; 286 are open to participants now.

This study's enrollment of 54 is above the median of 34 across 773 interventional studies indexed under Lymphoma, B-Cell.

Browse Lymphoma, B-Cell studies →

Lead sponsor

National Cancer Institute (NCI) is the lead sponsor of 3,556 studies on the registry; 336 are open to participants now.

Of its 411 completed or terminated interventional studies of FDA-regulated products, 373 (91%) have results posted.

Compared within Lymphoma, B-Cell, this study's primary condition as ClinicalTrials.gg classifies it; the registry's first condition term is Lymphoma, Non-Hodgkin. The counts are of registry records indexed under each term, refreshed daily. How we classify →

05

Who can participate

Ages eligible
3 Years to 39 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.

  • ELIGIBILITY CRITERIA:

Study subjects with cluster of differentiation 19 (CD19) + cluster of differentiation 22 (CD22+) expressing B cell who have or are treatment refractory may enroll as defined by the following inclusion and exclusion criteria.

Inclusion criteria

INCLUSION CRITERIA:

  • Diagnosis

    • Participant must have a B cell acute lymphoblastic leukemia (ALL) (inclusive of chronic myeloid leukemia (CML) with ALL transformation) or lymphoma and must have relapsed or refractory disease after at least one standard chemotherapy regimen and one salvage regimen. In view of the principal investigator (PI) and the primary oncologist, there must be no available alternative curative therapies and subjects must be either ineligible for stem cell transplant (SCT), have refused SCT, recurred after SCT, or have disease activity that prohibits SCT at the time of enrollment. Participants who have undergone autologous SCT will be eligible, and participants that have undergone allogeneic SCT will be eligible if, in addition to meeting other eligibility criteria, they have no evidence of (GVHD) and have been without agents for at least 30 days. Participants with Philadelphia chromosome + ALL must have failed prior tyrosine kinase inhibitor.
    • Participants must have measurable or evaluable disease at the time of enrollment, which may include any evidence of disease including minimal residual disease detected by flow cytometry, cytogenetics, or polymerase chain reaction (PCR) analysis. For those being considered for reinfusions, measurable or evaluable disease is not required at the time of reinfusion.
  • CD22/CD19 expression

    --CD19 expression must be detected on greater than 15% of the malignant cells by immunohistochemistry or greater than 90% by flow cytometry. The choice of whether to use flow cytometry or immunohistochemistry will be determined by what is the most easily available tissue sample in each participant. In general, immunohistochemistry will be used for lymph node , flow cytometry will be used for peripheral blood and bone marrow samples. CD22+ B cell malignancy is required and CD22 expression levels will be documented when available, but a specific level of expression is not an eligibility requirement; it may be documented as positive or negative.

  • Age:

    --Greater than or equal to 3 years of age (and at least 15 kg) and less than or equal to 39 years of age at time of enrollment (greater than or equal to 3 years to less than or equal to 39 years). NOTE: The first participant in each dose cohort must be greater than or equal to 18 years of age.

  • Clinical Performance

    --Clinical performance status: Participants greater than or equal to 16 years of age: greater than or equal to 50%; Participants \< 16 years of age: Lansky scale greater than or equal to 50%. Subjects who are unable to walk because of paralysis, but who are upright in a wheelchair will be considered ambulatory for the purpose of calculating the performance score.

  • Participants must have adequate organ and marrow function as defined below:

    • leukocytes greater than or equal to 750/mcL*
    • greater than or equal to 50,000/mcL*
    • total less than or equal to 2 X (ULN) (except in the case of subjects with documented Gilbert's disease > 3x ULN)
    • (AST)serum glutamic-oxaloacetic transaminase (SGOT)/alanine aminotransferase (ALT)serum glutamate pyruvate transaminase (SGPT) less than or equal to 10 X institutional upper limit of normal
    • creatinine less than or equal to the maximum for age listed in the table below
    • Age (Years): less than or equal to 5. Maximum Serum Creatinine (mg/dL): less than or equal to 0.8
    • Age (Years): 6 to less than or equal to 10. Maximum Serum Creatinine (mg/dL): less than or equal to 1.0
    • Age (Years): >10. Maximum Serum Creatinine (mg/dL): less than or equal to 1.2
    • OR
    • greater than or equal to 60 mL/min/1.73 m\^2 for participants with creatinine levels above institutional normal.

      • if these cytopenias are not judged by the investigator to be due to underlying disease (i.e. potentially reversible with anti-neoplastic therapy); A subject will not be excluded because of pancytopenia greater than or equal to Grade 3 if it is due to disease, based on the results of bone marrow studies.
  • Subjects with central nervous system (CNS) disease are eligible, with exceptions as noted in the exclusion criteria
  • :

    --Individuals of child-bearing or child-fathering potential (IOCBP or IOCFP) must be willing to practice birth control from the time of enrollment on this study and for 12 months after receiving the preparative regimen for IOCBP and for 4 months after receiving the preparative regimen for IOCFP

  • Cardiac function: greater than or equal to 45% or fractional shortening greater than or equal to 28%, and no (ECG) findings
  • Pulmonary Function
  • Baseline oxygen saturation >92% on room air at rest
  • Participants with respiratory symptoms must have a diffusing capacity for carbon monoxide (DLCO)/adjusted > 45%. For children who are unable to cooperate for pulmonary function tests (PFTs) they must not have dyspnea at rest or known requirement for supplemental oxygen.
  • Ability of subject, parent(s)/guardian(s), Legally Authorized Representative (LAR) or Durable Power of Attorney (DPA) to understand and the willingness to sign a written document.

Exclusion criteria

EXCLUSION CRITERIA:

Subjects meeting any of the following criteria are not eligible for participation in the study:

  • Recurrent or ALL limited to isolated testicular.
  • Subjects with radiologically detected active CNS lymphoma or isolated CNS disease which are eligible for definitive CNS directed radiation therapy will be excluded.
  • Hyperleukocytosis (greater than or equal to 50,000 blasts/micro L) or rapidly progressive disease that in the estimation of the investigator and sponsor would compromise ability to complete study therapy;
  • Pregnant or nursing individuals.
  • Subjects will be excluded related to the following prior therapy criteria:

    • Systemic chemotherapy, anti-neoplastic agents, or antibody-based therapies =\<2 weeks (6 weeks for clofarabine or nitrosoureas) prior to apheresis with the following exception:

      ---No time restriction with prior intrathecal chemotherapy, therapy, hydroxyurea or ALL maintenance type chemotherapy (vincristine, 6-mercaptopurine, oral methotrexate, or a tyrosine kinase inhibitor for participants with Philadelphia chromosome (Ph)+ ALL) provided there is recovery from any acute toxic effects.

    • Radiation therapy =\<3 weeks prior to apheresis with the following exception:

      ---No time restriction with radiation therapy if the volume of bone marrow treated is less than 10% and the subject has measurable/evaluable disease outside the radiation window.

    • History of stem cell transplantation prior to apheresis that meet the following criteria:

      • Less than 100 days post-transplant
      • Evidence of active (GVHD)
      • Taking agents within 30 days prior to apheresis
      • Less than 6 weeks post donor lymphocyte infusion (DLI)
    • History of prior CAR therapy or other adoptive cell therapies prior to apheresis that meet the following criteria:

      • Less than 30 days post-infusion
      • Circulating CAR T cells (or genetically modified cells) >5% by flow cytometry in peripheral blood.
  • (HIV)/ virus (HBV)/ virus (HCV) Infection:

    • a. Seropositive for HIV antibody. (Participants with HIV are at increased risk of lethal infections when treated with marrow-suppressive therapy. Appropriate studies will be undertaken in participants receiving combination antiretroviral therapy in the future should study results indicate effectiveness.)
    • b. Positive for Hepatitis B surface antigen (HbsAG).
    • c. Evidence of active Hepatitis C (evidenced by detectable HCV ribonucleic acid (RNA)
  • Uncontrolled, symptomatic, intercurrent illness including but not limited to infection, congestive heart failure, unstable angina pectoris, 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;
  • Second other than in situ carcinoma of the cervix, unless the tumor was treated with curative intent at least two years previously and subject is in remission;
  • History of severe, immediate reaction attributed to compounds of similar chemical or biologic composition to any agents used in study or in the manufacturing of the cells.
Terms in these criteria, in plain language(23)

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.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

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.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

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.

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.

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.

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.

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.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

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.

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.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

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.

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.

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.

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.

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.

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.

06

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
54 participants (actual)

Study arms

  • Experimental
    Dose Escalation

    Cluster of differentiation 19 (CD19)/cluster of differentiation 22 (CD22)-chimeric antigen receptor (CAR)-transduced T cells at escalating doses.

    Biological: CD19/CD22 CAR T-Cells · Drug: Fludarabine · Drug: Cyclophosphamide · Procedure: Apheresis · Other: Anti-emetic · Drug: Diphenhydramine · Drug: Acetaminophen · Diagnostic Test: ECG · Diagnostic Test: ECHO · Diagnostic Test: MRI Brain · Procedure: Bone marrow biopsy · Diagnostic Test: Cardiac MRI

  • Experimental
    Dose Expansion

    Cluster of differentiation 19 (CD19)/cluster of differentiation 22 (CD22)-chimeric antigen receptor (CAR)-transduced T cells at maximum tolerated dose (MTD) or highest dose administered.

    Biological: CD19/CD22 CAR T-Cells · Drug: Fludarabine · Drug: Cyclophosphamide · Procedure: Apheresis · Other: Anti-emetic · Drug: Diphenhydramine · Drug: Acetaminophen · Diagnostic Test: ECG · Diagnostic Test: ECHO · Diagnostic Test: MRI Brain · Procedure: Bone marrow biopsy · Diagnostic Test: Cardiac MRI

Interventions

  • BiologicalCD19/CD22 CAR T-Cells

    Cluster of differentiation 19 (CD19)/cluster of differentiation 22 (CD22) chimeric antigen receptor (CAR) T-cells will be infused on Day 0 after lymphodepleting chemotherapy regimen.

    Also known as: cluster of differentiation 19 chimeric antigen receptor T-cells, cluster of differentiation 22 chimeric antigen receptor T-cells

  • Fludarabine is administered as an intravenous (IV) infusion in an appropriate solution over 30 minutes. To prevent undue toxicity the dose will be based on body surface area (BSA) (25-30 mg/m\^2/dose) on Days -4, -3, -2 or Days -5, -4, -3, -2.

    Also known as: Fludara

  • Cyclophosphamide will be diluted in an appropriate solution and infused over one hour. The dose will be based on the body surface area (BSA), at 900 mg/m\^2/dose after fludarabine infusion on Day -2 or 600 mg/m\^2/dose on Days -3 \& -2.

    Also known as: Cytoxan

  • ProcedureApheresis

    According to institutional standards.

  • OtherAnti-emetic

    Prophylaxis and treatment.

  • Pre-medication: 0.5-1 mg/kg/dose (maximum 50 mg/dose) by mouth or intravenous over 10-15 minutes.

    Also known as: Benadryl, Banophen, Nytol

  • Pre-medication: 15 mg/kg/dose (maximum 650 mg/dose by mouth).

    Also known as: Tylenol, ofirmev, FeverAll

  • Diagnostic testECG

    Pre-cell infusion.

    Also known as: Electrocardiogram

  • Diagnostic testECHO

    Pre-cell infusion.

    Also known as: Echocardiogram

  • Diagnostic testMRI Brain

    Pre-cell infusion.

    Also known as: Magnetic resonance imaging

  • ProcedureBone marrow biopsy

    Pre-cell infusion.

    Also known as: BM biopsy

  • Diagnostic testCardiac MRI

    Screening

    Also known as: Cardiac magnetic resonance imaging

07

What researchers measure

Primary outcomes

  1. Grades of Toxicity by Type of Toxicity

    Safety analyses will consist of tabulations of grades of toxicity by type of toxicity assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Grade 1 is mild, Grade 2 is moderate, Grade 3 is severe, Grade 4 is life-threatening, and Grade 5 is death related to adverse event.

    Time frame: From start of lymphodepleting chemotherapy regimen through 30-days after chimeric antigen receptor (CAR) infusion (approximately 5 weeks).

  2. Maximum Tolerated Dose (MTD)

    MTD is defined as the dose level immediately below the level at which the enrollment is stopped due to dose-limiting toxicity (DLT). A DLT is defined as an adverse event that is at least possibly related to the cluster of differentiation 19/cluster of differentiation 22 (CD19/CD22)-chimeric antigen receptor (CAR) T cells with onset within the first 28 days after cell infusion.

    Time frame: First 28 days after cell infusion

Secondary outcomes

  1. Number of Participants That Have Successful Manufacture of the Targeted Dose Number of Chimeric Antigen Receptor (CAR) Cells

    Number of participants that have the targeted dose number of CAR cells successfully manufactured (i.e., number of participants enrolled where the correct number of cells are produces at the dose level that are enrolled) as measured by total number of viable cluster of differentiation 19 (CD19)/cluster of differentiation 22 (CD22) transduced T cells.

    Time frame: CAR infusion (Day 0)

  2. Overall Survival

    Overall survival (OS) will be determined as the time from the date of chimeric antigen receptor (CAR) infusion until death.

    Time frame: Number of months from CAR cell infusion until date of death or time of censor (max 66.6 months)

  3. Progression-free Survival (PFS)

    PFS is assessed from the date of chimeric antigen receptor (CAR) infusion until the documentation of disease progression or death due to any cause, whichever occurs first. Disease progression was assessed by the Response Criteria Lymphoma and is defined as individual node/lesion must be abnormal with LDI\>1.5 cm and increase by ≥50% from product of perpendicular diameters (PPD) nadir and an increase in longest transverse diameter of a lesion (LDI) or shortest axis perpendicular to LDi (SDI) from nadir 0.5 cm for lesions ≤2 cm, 1.0 cm for lesions \> 2 cm; and the International Working Group and is defined as worse marrow classification with at least a 50% increase in the percentage of marrow blasts.

    Time frame: Number of months from CAR cell infusion until time of disease progression, death, or date of censor (up to 67 months)

  4. Clinical Activity (Response) in Children and Young Adults With B-cell Acute Lymphoblastic Leukemia (B-ALL), Isolated Central Nervous System (CNS) ALL, or Lymphoma Who Previously Received Chimeric Antigen Receptor (CAR) Therapy and Those That Are CAR Naive

    Clinical activity (response) in children (age ≥3 years to 17 years) and young adults (age 18 years to ≤ 39 years) was measured by the Response Criteria Lymphoma. Complete Response (CR) is complete metabolic and/or radiographic response. Partial Response (PR) is partial metabolic response or partial remission. Stable Disease (SD) is no metabolic response or 50% decrease from baseline in the sum of products of diameters (SPD) of up to 6 dominant measurable nodes and extra nodal sites. Progressive Disease (PD) is individual node/lesion must be abnormal with longest transverse diameter of a lesion (LDI) \>1.5 cm and increase by ≥50% from product of perpendicular diameters (PPD) nadir and an increase in LDI or shortest axis perpendicular to LDi (SDI) from nadir 0.5 cm for lesions ≤2 cm and/or 1.0 cm for lesions \> 2 cm; also assessed by the International Working Group and PD is defined as worse marrow classification with at least a 50% increase in the percentage of marrow blasts.

    Time frame: At Day 28 (+/- 4 days) after CAR cell infusion

Other outcomes

  1. Number of Participants With a Dose-limiting Toxicity (DLT)

    A DLT is defined as an adverse event that is at least possibly related to the cluster of differentiation 19/cluster of differentiation 22 (CD19/CD22)-chimeric antigen receptor (CAR) T cells with onset within the first 28 days after cell infusion.

    Time frame: First 28 days

  2. Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0).

    Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

    Time frame: Adverse Events were monitored/assessed from the first study intervention, Study Day -4, through day 30 after the study agent (s) was/were administered, an average of 5 weeks.

08

Results

Posted Jun 4, 2025

Participant flow

Dose Escalation
Participant flow — Dose Escalation
MilestoneGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not Treated
Started445210008
Completed444210000
Not completed001000008
Withdrew: Not treated - participant did not receive cell infusion.001000008
Dose Expansion
Participant flow — Dose Expansion
MilestoneGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not Treated
Started0000021117
Completed0000021110
Not completed000000007
Withdrew: Not treated - screen failure000000007

Outcome measures

PrimaryGrades of Toxicity by Type of Toxicity

Safety analyses will consist of tabulations of grades of toxicity by type of toxicity assessed by the Common Terminology Criteria for Adverse Events (CTCAE) v5.0. Grade 1 is mild, Grade 2 is moderate, Grade 3 is severe, Grade 4 is life-threatening, and Grade 5 is death related to adverse event.

Time frame:
From start of lymphodepleting chemotherapy regimen through 30-days after chimeric antigen receptor (CAR) infusion (approximately 5 weeks).
Reported as:
Number · toxicities
Grades of Toxicity by Type of Toxicity
toxicitiesGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)
Grade 3 Anemia221111310
Grade 3 Febrile neutropenia121111300
Grade 3 Sinus tachycardia00001000
Grade 3 Abdominal pain00010000
Grade 3 Diarrhea00010000
Grade 3 Gastric hemorrhage00000100
Grade 3 Fever12001300
Grade 3 Cytokine release syndrome01010200
Grade 3 Immune system disorders, other (GVHD)00010000
Grade 3 Sepsis00000100
Grade 3 Alanine aminotransferase10001100
Grade 3 Aspartate aminotransferase00001110
Grade 3 GGT increased00000100
Grade 3 Lymphocyte count decreased224211311
Grade 3 Neutrophil count decreased323201711
Grade 3 Platelet count decreased41020810
Grade 3 White blood cell decreased303201610
Grade 3 Anorexia00010000
Grade 3 Hypertriglyceridemia21000300
Grade 3 Hypocalcemia00000100
Grade 3 Hypokalemia01000400
Grade 3 Back pain00010000
Grade 3 Myalgia00010100
Grade 3 Dysphasia00001000
Grade 3 Encephalopathy00001000
Grade 3 Headache00010000
Grade 3 Nervous system disorder, other (ICANS)00000200
Grade 3 Nervous system disorder, other (Neurotoxicity)00001000
Grade 3 Seizure00000200
Grade 3 Hypoxia00000100
Grade 3 Hypertension00001000
Grade 3 Hypotension02010600
Grade 4 Anemia00000010
Grade 4 Fibrinogen decreased00000100
Grade 4 Lymphocyte count decreased334211711
Grade 4 Neutrophil count decreased312201410
Grade 4 Platelet count decreased21001610
Grade 4 White blood cell decreased320101010
Grade 4 Hypertriglyceridemia00000100
Grade 4 Hypokalemia00001000
PrimaryMaximum Tolerated Dose (MTD)

MTD is defined as the dose level immediately below the level at which the enrollment is stopped due to dose-limiting toxicity (DLT). A DLT is defined as an adverse event that is at least possibly related to the cluster of differentiation 19/cluster of differentiation 22 (CD19/CD22)-chimeric antigen receptor (CAR) T cells with onset within the first 28 days after cell infusion.

Time frame:
First 28 days after cell infusion
Reported as:
Number · 10^6 CAR T cells/kg
Maximum Tolerated Dose (MTD)
10^6 CAR T cells/kgAll Participants
Maximum Tolerated Dose (MTD)3
SecondaryNumber of Participants That Have Successful Manufacture of the Targeted Dose Number of Chimeric Antigen Receptor (CAR) Cells

Number of participants that have the targeted dose number of CAR cells successfully manufactured (i.e., number of participants enrolled where the correct number of cells are produces at the dose level that are enrolled) as measured by total number of viable cluster of differentiation 19 (CD19)/cluster of differentiation 22 (CD22) transduced T cells.

Time frame:
CAR infusion (Day 0)
Reported as:
Count of participants · Participants
Number of Participants That Have Successful Manufacture of the Targeted Dose Number of Chimeric Antigen Receptor (CAR) Cells
ParticipantsGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)
Number of Participants That Have Successful Manufacture of the Targeted Dose Number of Chimeric Antigen Receptor (CAR) Cells445212111
SecondaryOverall Survival

Overall survival (OS) will be determined as the time from the date of chimeric antigen receptor (CAR) infusion until death.

Time frame:
Number of months from CAR cell infusion until date of death or time of censor (max 66.6 months)
Reported as:
Median · Months
Overall Survival
MonthsGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)
Overall Survival12.2 (8.9 to 27.8)17.8 (10.9 to 68.5)45.4 (13 to 66.6)15.3 (10.1 to 20.5)60 (60 to NA)20.7 (3 to 50.9)9.2 (9.2 to NA)8.3 (8.3 to NA)
SecondaryProgression-free Survival (PFS)

PFS is assessed from the date of chimeric antigen receptor (CAR) infusion until the documentation of disease progression or death due to any cause, whichever occurs first. Disease progression was assessed by the Response Criteria Lymphoma and is defined as individual node/lesion must be abnormal with LDI\>1.5 cm and increase by ≥50% from product of perpendicular diameters (PPD) nadir and an increase in longest transverse diameter of a lesion (LDI) or shortest axis perpendicular to LDi (SDI) from nadir 0.5 cm for lesions ≤2 cm, 1.0 cm for lesions \> 2 cm; and the International Working Group and is defined as worse marrow classification with at least a 50% increase in the percentage of marrow blasts.

Time frame:
Number of months from CAR cell infusion until time of disease progression, death, or date of censor (up to 67 months)
Reported as:
Median · Months
Progression-free Survival (PFS)
MonthsGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)
Progression-free Survival (PFS)6.4 (0.9 to 11.9)2.6 (1.0 to 8.6)20.1 (0.9 to 66.6)5.3 (2.4 to 8.1)60 (60 to NA)14.2 (0.9 to 50.9)5.7 (5.7 to NA)8.3 (8.3 to NA)
SecondaryClinical Activity (Response) in Children and Young Adults With B-cell Acute Lymphoblastic Leukemia (B-ALL), Isolated Central Nervous System (CNS) ALL, or Lymphoma Who Previously Received Chimeric Antigen Receptor (CAR) Therapy and Those That Are CAR Naive

Clinical activity (response) in children (age ≥3 years to 17 years) and young adults (age 18 years to ≤ 39 years) was measured by the Response Criteria Lymphoma. Complete Response (CR) is complete metabolic and/or radiographic response. Partial Response (PR) is partial metabolic response or partial remission. Stable Disease (SD) is no metabolic response or 50% decrease from baseline in the sum of products of diameters (SPD) of up to 6 dominant measurable nodes and extra nodal sites. Progressive Disease (PD) is individual node/lesion must be abnormal with longest transverse diameter of a lesion (LDI) \>1.5 cm and increase by ≥50% from product of perpendicular diameters (PPD) nadir and an increase in LDI or shortest axis perpendicular to LDi (SDI) from nadir 0.5 cm for lesions ≤2 cm and/or 1.0 cm for lesions \> 2 cm; also assessed by the International Working Group and PD is defined as worse marrow classification with at least a 50% increase in the percentage of marrow blasts.

Time frame:
At Day 28 (+/- 4 days) after CAR cell infusion
Reported as:
Number · percentage of participants
Clinical Activity (Response) in Children and Young Adults With B-cell Acute Lymphoblastic Leukemia (B-ALL), Isolated Central Nervous System (CNS) ALL, or Lymphoma Who Previously Received Chimeric Antigen Receptor (CAR) Therapy and Those That Are CAR Naive
percentage of participantsGROUP 4:Cohort 1A, CAR Naïve or CAR Pretreated With Interval Hematopoietic Stem Cell TransplantationGROUP 5: Cohort 1B, Previously Received Chimeric Antigen Receptor (CAR) ParticipantsGROUP 6:Cohort 2A, CAR Naïve or CAR Pretreated With Interval Hematopoietic Stem Cell TransplantationGROUP 7: Cohort 2B, Previously Received Chimeric Antigen Receptor (CAR)Group 8:Cohort 2C, CAR Naïve or CAR Pretreated With Previous Hematopoietic Stem Cell Transplantation
CR in children and young adults50 (2.6 to 97.4)100 (5.1 to 100)90.5 (71.1 to 98.3)100 (5.1 to 100)100 (5.1 to 100)
PR in children and young adults50 (2.6 to 97.4)0 (0 to 94.9)0 (0 to 15.5)0 (0 to 94.9)0 (0 to 94.9)
SD in children and young adults0 (0 to 82.2)0 (0 to 94.9)0 (0 to 15.5)0 (0 to 94.9)0 (0 to 94.9)
PD in children and young adults0 (0 to 82.2)0 (0 to 94.9)9.5 (1.7 to 28.9)0 (0 to 94.9)0 (0 to 94.9)
Other pre-specifiedNumber of Participants With a Dose-limiting Toxicity (DLT)

A DLT is defined as an adverse event that is at least possibly related to the cluster of differentiation 19/cluster of differentiation 22 (CD19/CD22)-chimeric antigen receptor (CAR) T cells with onset within the first 28 days after cell infusion.

Time frame:
First 28 days
Reported as:
Count of participants · Participants
Number of Participants With a Dose-limiting Toxicity (DLT)
ParticipantsGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or- 20%)
Number of Participants With a Dose-limiting Toxicity (DLT)00001200
Other pre-specifiedNumber of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0).

Here is the number of participants with serious and/or non-serious adverse events assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0). A non-serious adverse event is any untoward medical occurrence. A serious adverse event is an adverse event or suspected adverse reaction that results in death, a life-threatening adverse drug experience, hospitalization, disruption of the ability to conduct normal life functions, congenital anomaly/birth defect or important medical events that jeopardize the patient or subject and may require medical or surgical intervention to prevent one of the previous outcomes mentioned.

Time frame:
Adverse Events were monitored/assessed from the first study intervention, Study Day -4, through day 30 after the study agent (s) was/were administered, an average of 5 weeks.
Reported as:
Count of participants · Participants
Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0).
ParticipantsGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%Group 8:Cohort 2C, CAR Naïve or CAR Pretreated With Previous Hematopoietic Stem Cell Transplantation
Number of Participants With Serious and/or Non-serious Adverse Events Assessed by the Common Terminology Criteria for Adverse Events (CTCAE v5.0).444212111

Adverse events

Collected over All-Cause Mortality was monitored/assessed an average of 35 days. Adverse Events were monitored/assessed from the first study intervention (Study Day -4, through day 30 after the study agent (s) was/were administered) in any cycle, an average of 5 weeks.. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)4/4 (100%)2/4 (50%)4/4 (100%)
GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)3/4 (75%)2/4 (50%)4/4 (100%)
GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)2/4 (50%)0/4 (0%)4/4 (100%)
GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)2/2 (100%)2/2 (100%)2/2 (100%)
GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)0/1 (0%)1/1 (100%)1/1 (100%)
GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)8/21 (38.1%)7/21 (33.3%)21/21 (100%)
GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%1/1 (100%)0/1 (0%)1/1 (100%)
Group 8:Cohort 2C, CAR Naïve or CAR Pretreated With Previous Hematopoietic Stem Cell Transplantation0/1 (0%)1/1 (100%)1/1 (100%)
Most frequent serious events
Showing 10 of 19
Most frequent serious events
EventGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%Group 8:Cohort 2C, CAR Naïve or CAR Pretreated With Previous Hematopoietic Stem Cell Transplantation
Nervous system disorders - Other, (Neurotoxicity)Nervous system disorders0/40/40/40/21/10/210/10/1
RhabdomyolysisMusculoskeletal and connective tissue disorders0/40/40/40/20/10/210/11/1
Cytokine release syndromeImmune system disorders1/42/40/41/20/11/210/10/1
Febrile neutropeniaBlood and lymphatic system disorders0/41/40/41/20/10/210/10/1
HypotensionVascular disorders0/40/40/41/20/11/210/10/1
Immune system disorders - Other, GVHDImmune system disorders0/40/40/41/20/10/210/10/1
FeverGeneral disorders0/41/40/40/20/13/210/10/1
Flu like symptomsGeneral disorders1/40/40/40/20/10/210/10/1
HypertensionVascular disorders1/40/40/40/20/10/210/10/1
Upper respiratory infectionInfections and infestations1/40/40/40/20/10/210/10/1
Most frequent other events
Showing 10 of 188
Most frequent other events
EventGROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%Group 8:Cohort 2C, CAR Naïve or CAR Pretreated With Previous Hematopoietic Stem Cell Transplantation
Abdominal painGastrointestinal disorders2/42/42/42/21/110/210/10/1
Activated partial thromboplastin time prolongedInvestigations1/41/42/41/21/19/211/10/1
AgitationPsychiatric disorders0/40/40/40/21/10/211/10/1
Alanine aminotransferase increasedInvestigations2/43/42/42/21/19/210/11/1
Alkaline phosphatase increasedInvestigations1/42/42/40/20/15/211/10/1
AnemiaBlood and lymphatic system disorders4/44/44/42/21/119/211/11/1
AnorexiaMetabolism and nutrition disorders3/42/43/42/20/113/211/10/1
AnxietyPsychiatric disorders1/42/42/42/21/110/210/11/1
Aspartate aminotransferase increasedInvestigations3/42/40/42/21/113/211/11/1
Back painMusculoskeletal and connective tissue disorders0/41/43/41/21/113/210/10/1

Baseline characteristics

Data collected for participants enrolled and not treated are reported here.

Age, Categorical
Age, Categorical(Participants)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
<=18 years10201810518
Between 18 and 65 years3432013011036
>=65 years0000000000
Age, Continuous
Age, Continuous(years)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
Mean15.88 ± 6.0624.75 ± 3.9719.12 ± 8.7325.75 ± 3.459.7 ± 021 ± 10.8618.2 ± 022.6 ± 021.75 ± 10.9120.69 ± 10.09
Sex: Female, Male
Sex: Female, Male(Participants)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
Female10211910621
Male343101201933
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
Hispanic or Latino122001201624
Not Hispanic or Latino32321910728
Unknown or Not Reported0000000022
Race (NIH/OMB)
Race (NIH/OMB)(Participants)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
American Indian or Alaska Native0000000011
Asian1000030015
Native Hawaiian or Other Pacific Islander0000000000
Black or African American0011010014
White223111111931
More than one race0000000000
Unknown or Not Reported12100600313
Region of Enrollment
Region of Enrollment(participants)GROUP 1: Cohort 1, Dose Level 1, 3 x10^5 Transduced T Cells/kg (+Or-20%)GROUP 2: Cohort 1, Dose Level 2, 1x10^6 Transduced T Cells/kg (+Or-20%)GROUP 3: Cohort 1, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 4: Cohort 1A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 5: Cohort 1B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 6: Cohort 2A, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%)GROUP 7: Cohort 2B, Dose Level 3, 3 x10^6 Transduced T Cells/kg (+Or-20%GROUP 8: Cohort 2C, Dose Level 3, 3 x 10^6 Transduced T-cells/kg (+Or- 20%)Enrolled and Not Assigned to a Treatment Assignment Code; Not TreatedTotal
United States4452121111554
09

Study locations

1 site
  • National Institutes of Health Clinical Center
    Bethesda, Maryland 20892, United States
10

References and documents

Publications

  • Shalabi H, Qin H, Su A, Yates B, Wolters PL, Steinberg SM, Ligon JA, Silbert S, DeDe K, Benzaoui M, Goldberg S, Achar S, Schneider D, Shahani SA, Little L, Foley T, Molina JC, Panch S, Mackall CL, Lee DW, Chien CD, Pouzolles M, Ahlman M, Yuan CM, Wang HW, Wang Y, Inglefield J, Toledo-Tamula MA, Martin S, Highfill SL, Altan-Bonnet G, Stroncek D, Fry TJ, Taylor N, Shah NN. CD19/22 CAR T cells in children and young adults with B-ALL: phase 1 results and development of a novel bicistronic CAR. Blood. 2022 Aug 4;140(5):451-463. doi: 10.1182/blood.2022015795. PubMed 35605184 ↗
  • Singh N. Modified T cells as therapeutic agents. Hematology Am Soc Hematol Educ Program. 2021 Dec 10;2021(1):296-302. doi: 10.1182/hematology.2021000262. PubMed 34889384 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — All individual participant data (IPD) recorded in the medical record will be shared with intramural investigators upon request.

Supporting information: Study protocol, Statistical analysis plan, Informed consent form

Time frame: Clinical data available during the study and indefinitely.

Access criteria: Clinical data will be made available via subscription to Biomedical Translational Research Information System (BTRIS) and with the permission of the study principal investigator (PI).

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Timeline

Tracking 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

Ran from Mar 2018 to primary completion in Jul 2024, 75 months.

Results were first posted in Jun 2025, 10 months after primary completion.

Of 117 non-industry phase 1 interventional studies under Lymphoma, B-Cell, half reached primary completion within 54 months of starting (the median), counting those still running; a quarter within 37 and three quarters within 75. This study's 75 months is above that.

Counting every sponsor, half of 207 studies reached it within 51 months; a quarter within 37 and three quarters within 78.

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

Registered
Feb 27, 2018
First posted
Feb 28, 2018
StartActual
Mar 26, 2018
Primary completionActual
Jul 10, 2024
CompletionActual
Jan 13, 2025
Results first posted
Jun 4, 2025
Last update
Jun 4, 2025
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.
No changes since tracking began. The registry record was last updated on Jun 4, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03448393
Responsible party
Nirali N. Shah, M.D. (Principal Investigator, National Cancer Institute (NCI)) — Principal investigator
First posted
Feb 28, 2018
Start date
Mar 26, 2018
Primary completion
Jul 10, 2024
Completion
Jan 13, 2025
Results posted
Jun 4, 2025
Last update
Jun 4, 2025

Study contacts

Nirali N Shah, M.D.
principal investigator · National Cancer Institute (NCI)

Oversight

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

Not currently enrolling

This study is completed, as verified in May 2025. You cannot join it, but the record below documents what was studied.

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