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Active, not recruitingNCT03467256Updated Feb 24, 2023

CD19 T-CAR for Treatment of Children and Young Adults With r/r B-ALL

A Phase 1/2 interventional study of Chimeric Antigen Receptor T-Cell Therapy and Fludarabine in B-cell Acute Lymphoblastic Leukemia and Acute Lymphocytic Leukemia, Pediatric, sponsored by Federal Research Institute of Pediatric Hematology, Oncology and Immunology. Active, not recruiting at 1 site in Russian Federation. Open to participants aged 3 Months to 25 Years. Per ClinicalTrials.gov, last updated 2023-02-24.

Sponsored by Federal Research Institute of Pediatric Hematology, Oncology and Immunology · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
18
Allocation
Not applicable
Ages
3 Months to 25 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate the safety and efficiency of autologous CD19 CAR-T lymphocytes in a cohort of pediatric and young adult patients with relapsed /refractory B-lineage acute lymphoblastic leukemia

Read the detailed description

The main objectives of the study are:

  1. To investigate the safety of auto-CD19 CAR T-cells therapy among children and young adults with refractory/relapsed B-cell ALL on the basis of prospective evaluation of adverse affects frequency and severity according to CTCAE v.4
  2. To study the efficacy of auto-CD19 CAR T-cells therapy among children and young adults with refractory/relapsed B-cell ALL on the basis of proportion of patients in haematological and molecular remission at 28 days after infusion.
  3. To evaluate long-term efficacy of auto-CD19 CAR T-cells therapy among children and young adults with refractory/relapsed B-cell ALL on the basis of overall and event-free survival at 1 and 3 years after infusion.

The novelty of this study will be cytokine release syndrome prophylaxis by tocilizumab Patients will receive fludarabine 120 mg/m2 (totally) intravenously (IV) over 30 minutes on days -5 to -2 and cyclophosphamide 750 mg/m2 IV over 60 minutes on day -2. One hour prior to infusion of CAR T-cells patients will receive tocilizumab IV 8 mg/kg (max 800 mg) over 1 hour. Patients then receive CD19-CAR T cells IV over 20-30 minutes on day 0.

This is a dose-escalation study of CD19-CAR T cells. Dose escalation consistently:

  • Level 1 5х105/kg CD19 CAR-T lymphocytes
  • Level 2 1х106/kg CD19 CAR-T lymphocytes
  • Level 3 3х106/kg CD19 CAR-T lymphocytes
  • Level 0 1х105/kg CD19 CAR-T lymphocytes (in case of dose-limiting toxicity at dose Level 1) In case of severe side affects next dose will be reduced to the previous lower dose.

Based on interim analysis the following dosing approach based on stratification by the initial leukemia burden will be implemented starting November 2019:

  • Patients with low disease burden (\<15% blast cells in BM) will receive a lymphodepletion chemotherapy of fludarabine IV (total dose 120mg/m2) and cyclophosphamide IV (total dose 750mg/m2) over 5 days.

CD19 CAR-T cells will be infused IV in dose 1x106/kg on day 0.

  • Patients will high disease burden (>15% blast cells in BM) will receive a lymphodepletion chemotherapy of fludarabine IV (total dose 120 mg/m2), cyclophosphamide IV (total dose 750 mg/m2), cytarabine IV (total dose 900 mg/m2), etoposide IV (total dose 450 mg/m2), dexamethasone IV (total dose 30 mg/m2) over 5 days.

CD19 CAR-T cells 1st dose will be infused IV on day 0 - 0,1x106/kg, 2nd dose will be infused IV between day 7 and 14 - 0,9x106/kg.

02

Conditions studied

  • B-cell Acute Lymphoblastic Leukemia
  • Acute Lymphocytic Leukemia, Pediatric
03

In context

Burkitt Lymphoma

976 studies on the registry are indexed under Burkitt Lymphoma; 159 are open to participants now.

This study's planned enrollment of 18 is below the median of 36 across 765 interventional studies indexed under Burkitt Lymphoma.

Browse Burkitt Lymphoma studies →

Lead sponsor

Federal Research Institute of Pediatric Hematology, Oncology and Immunology is the lead sponsor of 57 studies on the registry; 18 are open to participants now.

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

04

Who can participate

Ages eligible
3 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

  • Ability to give (for patients > 14 years old). For subjects \< 18 years old their legal guardian must give informed consent
  • Patients with CD19-expressing B cell ALL :

    • Induction failure, no CR after course 2 or MRD>0,1% after 3 courses of high-risk protocol
    • early bone marrow or combined relapse of acute lymphoblastic leukaemia, no CR or MRD>0,1% after 1 course 2-nd line therapy
    • ALL post ≥ 2nd relapse, no CR or MRD>0,1% after 1 course 2-nd line therapy
    • Relapse or MRD >0,1% of ALL after stem cell transplant (> 60 days post )
    • Late bone marrow or combined relapse of acute lymphoblastic leukaemia, no CR or MRD>0,1% after 2nd course of 2-nd line therapy
  • There must be no available alternative curative therapies
  • CD19 expression must be detected on greater than 30% by flow cytometry
  • Patients must have measurable or evaluable disease at the time of enrolment, which may include any evidence of disease including minimal residual disease detected by flow cytometry, cytogenetics, or polymerase chain reaction (PCR) analysis.
  • Patient Clinical Performance Status: >50% or Lansky >50%
  • Patient > 8 weeks
  • Patients recovered from acute toxic effects of all prior chemotherapy, immuno- or radiotherapy
  • Patient absolute lymphocyte N > or =100/mm3
  • Patient cardiac function: greater than or equal to 40% by MUGA or cardiac MRI, or fractional shortening greater than or equal to 28% by ECHO or left ventricular ejection fraction greater than or equal to 50% by ECHO.
  • Patients who agree to long-term follow up for up to 5 years (if received CD19 CAR-T cell infusion)

Exclusion criteria

Exclusion Criteria:

  1. \<30% expression of CD19 on the leukemic population
  2. Active , C or infection
  3. Oxygen saturation \< or = 90%
  4. >3x upper norma limit
  5. Creatinine >3x upper norma limit
  6. Active acute overall grade ≥2 (Seattle criteria)
  7. Moderate/severe chronic GVHD (NIH consensus) requiring systemic
  8. Clinical signs of grade >3 CNS disorders (seizure disorder, paresis, aphasia, cerebrovascular, ischemia/hemorrhage, severe brain injuries, dementia, cerebellar disease, organic brain syndrome, psychosis, coordination or movement disorder)
  9. Pregnant or lactating women.
  10. Active severe infection
Terms in these criteria, in plain language(11)

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.

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.

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.

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.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

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.

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.

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.

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.

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.

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.

05

Study design

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

Study arms

  • Experimental
    experimental

    Patients will receive lymphodepleting chemotherapy, one hour prior to infusion of CAR T-cells patients will receive tocilizumab IV 8 mg/kg (max 800 mg) over 1 hour. Patients then receive CD19-CAR T cells IV on day 0.

    Biological: Chimeric Antigen Receptor T-Cell Therapy · Drug: Fludarabine · Drug: Cyclophosphamide · Drug: Tocilizumab · Drug: Cytarabine · Drug: Etoposide · Drug: Dexamethasone

Interventions

06

What researchers measure

Primary outcomes

  1. Incidence of grade 3-5 SAE occurring within 30 days of CD19CAR T-cell infusion

    incidence of grade 3-5 SAE according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 occurring within 30 days of CD19CAR T-cell infusion

    Time frame: 1 month

  2. Incidence of grade 3-4 Severe Cytokine Release Syndrome following CD19 CAR T-cell infusion

    incidence of grade 3-4 Severe Cytokine Release Syndrome

    Time frame: 1 month

  3. Incidence of grade 3-5 neurotoxicity occurring within 30 days of CD19 CAR T-cell infusion

    incidence of grade 3-5 neurotoxicity according to the Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 occurring within 30 days of CD19 CAR T-cell infusion

    Time frame: 1 month

  4. Proportion of patients in MRD-negative remission

    Proportion of patients in MRD-negative remission among all enrolled patients

    Time frame: 1 month

  5. Proportion of patients in hematologic remission

    Proportion of patients in hematologic remission among all patients with morphological disease (NO CR) at enrollment

    Time frame: 1 months

Secondary outcomes

  1. Duration of MRD-negative remission

    Duration of MRD-negative remission

    Time frame: 2 years

  2. Persistence/frequency of CD19 CAR T lymphocytes in peripheral (FC+qPCR)

    Persistence/frequency of CD19 CAR T lymphocytes in peripheral (FC+qPCR)

    Time frame: 2 years

  3. Duration of B-cell aplasia

    Duration of B-cell aplasia and hypogammaglobulinemia, time 0 - day of CD19-CAR T cells infusion

    Time frame: 5 years

  4. Overall survival

    the probability of survival, time 0 - day of CD19-CAR T cells infusion

    Time frame: 5 years

07

Study locations

1 site
  • Dmitry Rogachev National Research Center of Pediatric Hematology, Oncology and Immunology
    Moscow, 117198, Russian Federation
08

References and documents

Publications

  • Maschan M, Caimi PF, Reese-Koc J, Sanchez GP, Sharma AA, Molostova O, Shelikhova L, Pershin D, Stepanov A, Muzalevskii Y, Suzart VG, Otegbeye F, Wald D, Xiong Y, Wu D, Knight A, Oparaocha I, Ferencz B, Roy A, Worden A, Kruger W, Kadan M, Schneider D, Orentas R, Sekaly RP, de Lima M, Dropulic B. Multiple site place-of-care manufactured anti-CD19 CAR-T cells induce high remission rates in B-cell malignancy patients. Nat Commun. 2021 Dec 10;12(1):7200. doi: 10.1038/s41467-021-27312-6. PubMed 34893603 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 24, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03467256
Lead sponsor
Federal Research Institute of Pediatric Hematology, Oncology and Immunology
Responsible party
Sponsor
First posted
Mar 15, 2018
Start date
May 14, 2018
Primary completion
Oct 15, 2020
Completion
Oct 15, 2025 (estimated)
Last update
Feb 24, 2023

Oversight

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

Not currently enrolling

This study is active, not recruiting, as verified in Feb 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drugs tested here: Chimeric Antigen Receptor T-cells · Fludarabine · Cyclophosphamide · Tocilizumab · Cytarabine · Etoposide · Dexamethasone

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