Modified Immune Cells (CD19/CD20 CAR-T Cells) in Treating Patients With Recurrent or Refractory B-Cell Lymphoma or Chronic Lymphocytic Leukemia
Study of CD19/CD20 Bispecific Chimeric Antigen Receptor (CAR)-T Cells for the Treatment of Relapsed or Refractory B-Cell Lymphomas and Chronic Lymphocytic Leukemia (CD20 - Cluster of Differentiation Antigen 20)
2 other identifiers
interventional
24
1 country
1
Brief Summary
This phase I trial studies the side effects and best dose of CD19/CD20 chimeric antigen receptor (CAR) T-cells when given together with chemotherapy, and to see how effective they are in treating patients with non-Hodgkin's B-cell lymphoma or chronic lymphocytic leukemia that has come back (recurrent) or has not responded to treatment (refractory). In CAR-T cell therapy, a patient's white blood cells (T cells) are changed in the laboratory to produce an engineered receptor that allows the T cell to recognize and respond to CD19 and CD20 proteins. CD19 and CD20 are commonly found on non-Hodgkin?s B-cell lymphoma and chronic lymphocytic leukemia cells. Chemotherapy drugs such as fludarabine phosphate and cyclophosphamide can control cancer cells by killing them, by preventing their growth, or by stopping them from spreading. Combining CD19/CD20 CAR-T cells and chemotherapy may help treat patients with recurrent or refractory B-cell lymphoma or chronic lymphocytic leukemia.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Oct 2019
Longer than P75 for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 20, 2019
CompletedFirst Posted
Study publicly available on registry
July 5, 2019
CompletedStudy Start
First participant enrolled
October 4, 2019
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2027
September 5, 2025
May 1, 2025
6.8 years
June 20, 2019
August 28, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Incidence of adverse events
Will be assessed according to Common Terminology Criteria for Adverse Events (CTCAE) version 5.0, with the exception of cytokine release syndrome (CRS), which will be graded on the American Society for Transplantation and Cellular Therapy (ASTCT) Consensus Grading for CRS scale. Simple descriptive statistics will be used to summarize toxicities observed after each transgenic T-cell infusion in terms of type (organ affected or laboratory determination such as absolute neutrophil count), severity (by CTCAE toxicity table) and minimum or maximum values for laboratory measures, time of onset, duration, and reversibility or outcome. Tables will be created to summarize these toxicities and side effects. Adverse events will be tabulated by treatment group and will include the number of patients for whom the event occurred, the rate of occurrence, and the severity and relationship to study drug.
Up to 28 days from infusion
Dose-limiting toxicities
Will be assessed per CTCAE version 5.0 with the exception of CRS as mentioned above.
Up to 28 days from infusion
Secondary Outcomes (8)
Clinical response
Up to 15 years
Duration of remission
Time from complete remission (CR)/partial remission (PR) measurement criteria are first met until the first date that recurrent or progressive disease is objectively documented, or until death, assessed up to 15 years
Objective response rate (ORR)
Up to 15 years
Progression-free survival
From time of study entry to documentation of objective disease progression or death due to any cause assessed up to 15 years
Overall survival (OS)
From date of enrollment until death, assessed up to 15 years
- +3 more secondary outcomes
Other Outcomes (1)
Analysis of proteins/cytokines (c-reactive protein (CRP), interleukin 6 (IL-6), tumor necrosis factor-alpha (TNF-α), and interferon-gamma (IFN-γ)) concentration in peripheral blood following CART19/20 infusion.
Up to 30 days post-infusion
Study Arms (1)
Treatment (fludarabine, cyclophosphamide, CD19/CD20 T-cells)
EXPERIMENTALCONDITIONING CHEMOTHERAPY: Patients receive fludarabine phosphate IV over 30 minutes and cyclophosphamide IV over 60 minutes 5, 4, and 3 days before cell infusion. T-CELL INFUSION: Patients receive CD19/CD20 CAR-T cells IV on day 0. Patients with cytokine release syndrome may also receive tocilizumab IV on day 2 at the discretion of the clinical investigator.
Interventions
Given Autologous anti-CD19/anti-CD20 CAR-expressing naive/memory T cells IV
Given IV
Given IV
Given IV
Eligibility Criteria
You may qualify if:
- Diffuse large B-cell lymphoma (DLBCL), primary mediastinal large B-cell lymphoma (PMBCL), mantle cell lymphoma (MCL), follicular lymphoma (FL), chronic lymphocytic leukemia (CLL), or small lymphocytic lymphoma (SLL) that is refractory to standard-of-care options
- DLBCL and PMBCL: primary refractory; relapsed after two prior lines of therapy
- MCL, FL, CLL, and SLL: primary refractory; relapsed after three or more prior rounds of therapy
- \> 30% positivity in malignant cells of either CD19 and/or CD20
- Minimum tumor burden of 1.5 cm\^3 for lymphoma
- Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
- Adequate bone marrow and major organ function to undergo a T cell transplant determined within 30?60 days prior to enrollment using standard phase I criteria for organ function. Blood may be evaluated while a patient is receiving growth factor support. Patients will be re-evaluated for organ function within 14 days of beginning conditioning chemotherapy
- Absolute neutrophil count (ANC) \>= 1 x 10\^9 cells/L (within 30-60 days prior to enrollment)
- Platelets \>= 75 x 10\^9/L (within 30-60 days prior to enrollment)
- Hemoglobin \>= 8 g/dL (with or without transfusion) (within 30-60 days prior to enrollment)
- Aspartate and alanine aminotransferases (AST, ALT) =\< 2.5 x upper limit of normal (ULN) (within 30-60 days prior to enrollment)
- Total bilirubin =\< 2 x ULN (except patients with documented Gilbert?s syndrome) (within 30-60 days prior to enrollment)
- Creatinine \< 2 mg/dL (or a glomerular filtration rate \> 45) (within 30-60 days prior to enrollment)
- Must be willing and able to accept at least one leukapheresis procedure
- Must be willing and able to provide written informed consent
You may not qualify if:
- Inability to purify \>= 1 x 10\^7 T cells from leukapheresis product
- Previously known hypersensitivity to any of the agents used in this study; known sensitivity to cyclophosphamide or fludarabine
- Received systemic treatment for cancer, including immunotherapy, within 14 days prior to initiation of conditioning chemotherapy administration within this protocol. Patients who have received anti-CD19 CAR T-cells will be excluded from this trial. Consistent with current trials, patients may otherwise be given bridging therapy at the discretion of the lead study investigator
- Patients who have received an allograft transplant will NOT be allowed to participate in the trial. Patients who have received an autologous transplant will not be excluded and may participate in the trial
- Potential requirement for systemic corticosteroids or concurrent immunosuppressive drugs based on prior history or received systemic steroids within the last 2 weeks prior to enrollment (inhaled or topical steroids at standard doses are allowed)
- Human immunodeficiency virus (HIV) seropositivity or other congenital or acquired immune deficiency state, which would increase the risk of opportunistic infections and other complications during chemotherapy-induced lymphodepletion. If there is a positive result in the infectious disease testing that was not previously known, the patient will be referred to their primary physician and/or infectious disease specialist
- Hepatitis B or C seropositivity with evidence of ongoing liver damage, which would increase the likelihood of hepatic toxicities from the chemotherapy conditioning regimen and supportive treatments. If there is a positive result in the infectious disease testing that was not previously known, the patient will be referred to their primary physician and/or infectious disease specialist
- Dementia or significantly altered mental status that would prohibit the understanding or rendering of informed consent and compliance with the requirements of this protocol
- A Tiffeneau-Pinelli index \< 70% of the predicted value. Subjects will be excluded if pulmonary function tests indicate they have insufficient pulmonary capability
- A left ventricular ejection fraction as determined by an echocardiogram lower than 40% would preclude participation
- Pregnancy or breast-feeding. Female patients must be surgically sterile or be postmenopausal for two years, or must agree to use effective contraception during the period of treatment and for 6 months afterwards. All female patients with reproductive potential must have a negative pregnancy test (serum/urine) at screening and again within 14 days from starting the conditioning chemotherapy. The definition of effective contraception will be based on the judgment of the study investigators. Patients who are breastfeeding are not allowed on this study
- History of other malignancy in the past 3 years with the following exceptions:
- Malignancy treated with curative intent and no known active disease
- Adequately treated non-melanoma skin cancer without evidence of disease
- Adequately treated cervical carcinoma in situ without evidence of disease
- +4 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
UCLA / Jonsson Comprehensive Cancer Center
Los Angeles, California, 90095, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sarah Larson, MD
UCLA / Jonsson Comprehensive Cancer Center
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 20, 2019
First Posted
July 5, 2019
Study Start
October 4, 2019
Primary Completion (Estimated)
August 1, 2026
Study Completion (Estimated)
August 1, 2027
Last Updated
September 5, 2025
Record last verified: 2025-05