Study Evaluating Brexucabtagene Autoleucel (KTE-X19) in Pediatric and Adolescent Participants With Relapsed/Refractory B-precursor Acute Lymphoblastic Leukemia or Relapsed/Refractory B-Cell Non-Hodgkin Lymphoma
NCT ID: NCT02625480
Last Updated: 2025-09-29
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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ACTIVE_NOT_RECRUITING
PHASE1/PHASE2
95 participants
INTERVENTIONAL
2016-02-01
2026-02-28
Brief Summary
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As of October 2022, no further patients with acute B-cell Acute Lymphoblastic Leukemia (ALL) will be asked to join the study. The study remains open for recruitment for patients that have B-cell Non Hodgkin Lymphoma (NHL).
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Detailed Description
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Conditions
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Single Arm
A conditioning chemotherapy regimen of fludarabine and cyclophosphamide will be administered followed by a single infusion of chimeric antigen receptor (CAR) transduced autologous T cells administered intravenously at a target dose of 2 x 10\^6 anti-CD19 CAR+ T cells/kg or 1 x 10\^6 anti-CD19 CAR+ T cells/kg.
Brexucabtagene Autoleucel (KTE-X19)
Fludarabine
Administered intravenously
Cyclophosphamide
Administered intravenously
Interventions
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Brexucabtagene Autoleucel (KTE-X19)
Fludarabine
Administered intravenously
Cyclophosphamide
Administered intravenously
Eligibility Criteria
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Inclusion Criteria
* Primary refractory disease
* Any relapse within 18 months after first diagnosis
* Relapsed or refractory disease after 2 or more lines of systemic therapy
* Relapsed or refractory disease after allogeneic transplant provided individual is at least 100 days from stem cell transplant at the time of enrollment
* Disease burden defined as at least 1 of the following:
* Morphological disease in the bone marrow (\> 5% blasts)
* Minimal/Measurable Residual Disease (MRD) positive (threshold 10\^-4 by flow or Polymerase chain reaction (PCR))
* Individuals with Ph+ disease are eligible if they are intolerant to tyrosine kinase inhibitor (TKI) therapy, or if they have relapsed/refractory disease despite treatment with at least 2 different TKIs
* Age ≤ 21 years and weight ≥ 6 kg at the time of assent or consent per Institutional Review Board (IRB) guidelines
* Lansky (age \< 16 years at the time of assent/consent) or Karnofsky (age ≥ 16 years at the time of assent/consent) performance status ≥ 80 at screening
* Adequate renal, hepatic, pulmonary and cardiac function defined as:
* Creatinine clearance (as estimated by Cockcroft Gault or Schwartz) ≥ 60 mL/min
* Serum alanine aminotransferase (ALT)/aspartate aminotransferase (AST) ≤ 5 x upper limit of normal (ULN)
* Total bilirubin ≤ 1.5 x ULN, except in individuals with Gilbert's syndrome
* Left ventricular shortening fraction (LVSF) ≥ 30% or left ventricular ejection fraction (LVEF) ≥ 50%, as determined by an echocardiogram or multi-gated acquisition scan (MUGA), no evidence of pericardial effusion (except trace or physiological) as determined by an echocardiogram (ECHO) and no clinically significant arrhythmias
* No clinically significant pleural effusion, pericardial effusion or ascites
* Baseline oxygen saturation \> 92% on room air
* Histologically confirmed aggressive B cell NHL
* Relapsed or refractory histologically confirmed aggressive B-cell NHL per 1 or more of the following:
* Primary refractory disease
* Any relapse within 18 months after first diagnosis
* Relapsed or refractory disease after 1 or more lines of systemic therapy
* Relapsed or refractory disease after autologous /allogeneic stem cell transplant provided individual is at least 6 weeks from autologous stem cell transplant and at least 3 months from allogeneic stem cell transplant at the time of enrollment
* Individuals must have received adequate prior therapy including at a minimum all of the following:
* Anti-CD20 monoclonal antibody, unless the investigator determines that the tumor is CD20 negative
* An anthracycline-containing chemotherapy regimen
* Age \<18 years old and weight ≥ 6kg
* Lansky (age \< 16 years at the time of assent/consent) or Karnofsky (age ≥ 16 years at the time of assent/consent) performance status ≥ 80 at screening
* Adequate renal, hepatic, pulmonary, and cardiac function defined as the following:
* Creatinine clearance (as estimated by Cockcroft Gault or Schwartz) ≥ 60 mL/min
* Serum ALT/AST ≤ 5 ULN
* Total bilirubin ≤1.5 x ULN except in individuals with Gilbert's syndrome
* Left ventricular shortening fraction(LVSF) ≥ 30% or left ventricular ejection fraction (LVEF) ≥ 50%, as determined by ECHO or MUGA, no evidence of pericardial effusion (except trace or physiological) as determined by an ECHO, and no clinically significant arrhythmias
* Baseline oxygen saturation \> 92% on room air
Exclusion Criteria
* History of malignancy other than non-melanoma skin cancer or carcinoma in situ (e.g. cervix, bladder, breast) unless disease free for at least 3 years
* History of severe hypersensitivity reaction to aminoglycosides or any of the agents used in this study
* Central nervous system (CNS) involvement and abnormalities:
* Any CNS tumor mass by imaging and/or parameningeal mass (cranial and/or spinal)
* Presence of central nervous system (CNS)-3 disease, defined as white blood cell (WBC) ≥ 5/µL in Cerebrospinal Fluid (CSF) with presence of lymphoblasts with or without neurologic symptoms
* CNS-2 disease, defined as WBC \< 5/µL in CSF with presence of lymphoblasts and with neurologic symptoms (see note below for further clarification).
* Note: Neurologic symptoms may include but are not limited to cranial nerve palsy (if not explained by extracranial tumor) and clinical cord compression.
* (Individuals with CNS-1 (no detectable lymphoblasts in the CSF) and those with CNS-2 without clinically evident neurological changes are eligible to participate in the study)
* History or presence of CNS disorder, such as cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, or any autoimmune disease with CNS involvement, posterior reversible encephalopathy syndrome (PRES), or cerebral edema with confirmed structural defects not related to lymphoma by appropriate imaging. History of stroke or transient ischemic attack within 12 months before enrollment. Individuals with seizure disorders requiring active anticonvulsive medication.
* History of concomitant genetic syndrome such as Fanconi anemia, Kostmann syndrome, Shwachman-Diamond syndrome or any other known bone marrow failure syndrome
* History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 12 months of enrollment
* History of symptomatic deep vein thrombosis or pulmonary embolism within 6 months of enrollment.
* Primary immunodeficiency
* History of human immunodeficiency virus (HIV) infection or acute / chronic active hepatitis B or C infection. Individuals with a history of hepatitis infection must have cleared their infection as determined by standard serological and genetic testing per current Infectious Diseases Society of America guidelines or applicable country guidelines.
* Presence or suspicion of fungal, bacterial, viral, or other infection that is uncontrolled or requiring IV antimicrobials for management.
* Prior medication:
* Prior CD19 directed therapy (other than blinatumomab), including CAR+ T cell, bispecific T cell engager (BiTE), and antibody drug conjugate (ADC), with the exception of individuals who received brexucabtagene autoleucel (KTE-X19) in this study and are eligible for re-treatment
* Treatment with alemtuzumab within 6 months prior to leukapheresis, or treatment with clofarabine or cladribine within 3 months prior to leukapheresis
* Donor lymphocyte infusion (DLI) within 28 days prior to enrollment
* Any drug used for graft-versus-host disease (GVHD) within 4 weeks prior to enrollment
* Acute GVHD grade II-IV by Glucksberg criteria or severity B-D by IBMTR index; acute or chronic GVHD requiring systemic treatment within 4 weeks prior to enrollment
* Live vaccine ≤ 6 weeks prior to enrollment
* Women of child-bearing potential who are pregnant or breastfeeding because of the potentially dangerous effects of the preparative chemotherapy on the fetus or infant. Females who have undergone surgical sterilization are not considered to be of childbearing potential
* Individuals of both genders of child-bearing potential who are not willing to use a birth control method considered to be highly effective per protocol from the time of consent through 6 months after conditioning chemotherapy or brexucabtagene autoleucel (KTE-X19) infusion, whichever is longer.
* History of malignancy other than nonmelanoma skin cancer, carcinoma in situ (eg, cervix, breast), or follicular lymphoma (FL) unless disease free for at least 3 years
* Autologous stem cell transplant within \<6 weeks of planned KTE-X19 infusion; allogeneic stem cell transplant within \<3 months of planned KTE-X19 infusion
* Prior CD19 targeted therapy other than blinatumomab and loncastuximab tesirine-lpyl
* History of severe, immediate hypersensitivity reaction attributed to aminoglycosides
* Presence or suspicion of fungal, bacterial, viral, or other infection that is uncontrolled or requiring IV antimicrobials for management.
* History of HIV infection or acute/chronic active hepatitis B or C infection. Individuals with a history of hepatitis infection must have cleared their infection as determined by standard serological and genetic testing per current Infectious Diseases Society of America guidelines or applicable country guidelines
* Acute GVHD grade II-IV by Glucksberg criteria or severity B-D by International Bone Marrow Transplant Registry (IBMTR) index; acute or chronic GVHD requiring systemic treatment within 4 weeks prior to enrollment.
* CNS involvement and abnormalities:
* Any CNS tumor mass and/or parameningeal mass (cranial and/or spinal) by imaging with current or prior history of neurological symptoms within 3 months prior to screening.
Note: CNS involvement without neurologic symptoms will be allowed.
* History or presence of any CNS disorder such as a seizure disorder, cerebrovascular ischemia/hemorrhage, dementia, cerebellar disease, any autoimmune disease with CNS involvement, posterior reversible encephalopathy syndrome (PRES), or cerebral edema with confirmed structural defects by appropriate imaging. History of stroke or transient ischemic attack within 12 months before enrollment. Individuals with seizure disorders requiring active anti-convulsive medication.
* History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 12 months of enrollment
* Primary immunodeficiency
* History of severe immediate hypersensitivity reaction to any of the agents used in this study
* Live vaccine ≤ 6 weeks prior to planned start of lymphodepleting chemotherapy regimen
* Individuals of both genders of child-bearing potential who are not willing to use a birth control considered to be highly effective per protocol from the time of consent through 12 months after the completion of lymphodepleting chemotherapy or brexucabtagene autoleucel (KTE-X19) infusion, whichever is longer.
* Prior medication:
* Prior CD19 directed therapy (other than blinatumomab), including CAR+ T cell, BiTE, and ADC, with the exception of individuals who received brexucabtagene autoleucel (KTE-X19) in this study and are eligible for re-treatment
* Treatment with alemtuzumab within 6 months prior to leukapheresis, or treatment with clofarabine or cladribine within 3 months prior to leukapheresis
* DLI within 28 days prior to enrollment
* Any drug used for GVHD within 4 weeks prior to enrollment
21 Years
ALL
No
Sponsors
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Kite, A Gilead Company
INDUSTRY
Responsible Party
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Principal Investigators
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Kite Study Director
Role: STUDY_DIRECTOR
Kite, A Gilead Company
Locations
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Children's Hospital Los Angeles
Los Angeles, California, United States
Children's Hospital of Orange County
Orange, California, United States
UCSF Benioff Children's Hospital
San Francisco, California, United States
University of Miami Hospital & Clinics
Miami, Florida, United States
Kapi'olani Medical Center for Women and Children
Honolulu, Hawaii, United States
Ann & Robert H. Lurie Children's Hospital
Chicago, Illinois, United States
Johns Hopkins University
Baltimore, Maryland, United States
Children's Hospitals and Clinics of Minnesota
Minneapolis, Minnesota, United States
Columbia University Irving Medical Center/Morgan Stanley Children's Hospital-NYP
New York, New York, United States
University of Rochester Medical Center
Rochester, New York, United States
The Children's Hospital of Philadelphia
Philadelphia, Pennsylvania, United States
Monroe-Carell Jr. Children's Hospital at Vanderbilt
Nashville, Tennessee, United States
Texas Children's Hospital
Houston, Texas, United States
The University of Texas M.D. Anderson Cancer Center
Houston, Texas, United States
University of Virginia Health System, Pediatric Hematology/Oncology Clinic
Charlottesville, Virginia, United States
University Hospital Gent
Ghent, , Belgium
The Hospital for Sick Children
Toronto, , Canada
University Hospital Brno
Brno, , Czechia
Unité d'Oncologie et Hématologie Pédiatriques
Bordeaux, , France
Institut d'Hematologie et Oncologie Pediatrique
Lyon, , France
Hopital d'Enfants la Timone
Marseille, , France
Hopital Robert Debre - Sevice d'Hemato-immunologic
Paris, , France
University Medical Center Hamburg-Eppendorf (UKE)
Hamburg, , Germany
Bambino Gesù Children's Hospital
Rome, , Italy
Prinses Maxima Centrum
Utrecht, , Netherlands
Jurasz University Hospital 1; Collegium Medicum
Bydgoszcz, , Poland
Wroclaw Medical University
Wroclaw, , Poland
Hospital Sant Joan de Déu
Barcelona, , Spain
Hospital Universitario La Paz
Madrid, , Spain
Karolinska University Hospital
Stockholm, , Sweden
Countries
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References
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Wayne AS, Huynh V, Hijiya N, Rouce RH, Brown PA, Krueger J, Kitko CL, Ziga ED, Hermiston ML, Richards MK, Baruchel A, Schuberth PC, Rossi J, Zhou L, Goyal L, Jain R, Vezan R, Masouleh BK, Lee DW. Three-year results from phase I of ZUMA-4: KTE-X19 in pediatric relapsed/refractory acute lymphoblastic leukemia. Haematologica. 2023 Mar 1;108(3):747-760. doi: 10.3324/haematol.2022.280678.
Related Links
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Gilead Clinical Trials Website
Other Identifiers
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2023-509440-97
Identifier Type: OTHER
Identifier Source: secondary_id
KTE-C19-104
Identifier Type: -
Identifier Source: org_study_id
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