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Enrolling by invitationPhase 1

Tests CD19.20.22 CAR T-cells in adults with relapsed B-cell lymphomas

Tests engineered immune cells in adults whose B-cell lymphoma returned or did not respond.

Key facts

Who runs it
University of Maryland, Baltimore
Where
Baltimore, United StatesSee the site
Trial code
Registry title
CD19.20.22 CAR T-cells for Patients With Relapsed/Refractory B-Cell Lymphomas
Status
Enrolling by invitation
Phase
Phase 1
People taking part
15 people, planned
Started
28 Oct 2024
Expected to end
1 Jul 2028
Type of study
Interventional, 3 groups
Treatments tested
  • CD19.20.22 CAR T cells
  • Fludarabine and Cyclophosphamide
Record updated
14 September 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults whose B-cell lymphoma came back or did not respond to earlier treatment, and whose tumour shows at least 2 of 3 target markers. They would receive CAR19.20.22 CAR T-cells.

Age
18 years or older
Sex
All sexes
Disease stage
B-cell lymphoma (for example DLBCL, PMBCL, follicular, mantle cell, marginal zone, CLL/SLL, Richter's transformation, Burkitt's) that came back or did not respond. Measurable disease is needed.
Earlier treatment
Disease must have returned or not responded after two or more lines of therapy (one or more for mantle cell lymphoma). This includes rituximab or another anti-CD20 antibody, and anthracycline for some types. Mantle cell lymphoma also needs a BTK inhibitor. Earlier CAR T-cells, stem-cell transplant or bispecific T-cell engagers are allowed with a waiting time.
Biomarker or test result
The tumour biopsy must show 2 out of 3 target antigens (IHC or flow).

Main reasons for not taking part

  • Known HIV infection, active hepatitis B, or hepatitis C with detectable virus
  • Active systemic fungal, viral or bacterial infection
  • Suspected or active lymphoma in the central nervous system
  • Seizures or an autoimmune brain disease
  • Pregnant or breast-feeding women

The registry criteria, word for word

Show all 40 criteriaShow less

Who can take part

  • Age ≥ 18 years
  • Histologically confirmed relapsed/refractory B cell Lymphoma. Histologies allowed: diffuse large B cell lymphoma (DLBCL), primary mediastinal large B cell lymphoma (PMBCL), Follicular Lymphoma (FL), transformed follicular lymphoma (tFL), mantle cell lymphoma (MCL), marginal zone lymphoma (MZL), chronic lymphocytic leukemia (CLL)/small lymphocytic lymphoma (SLL), Richter's transformation with or without concurrent CLL, Burkitt's lymphoma
  • Relapsed or Refractory disease after two lines or more of therapy (except one or more line for MCL) including rituximab and other anti-CD20 antibodies, BTK inhibitors (Mantle Cell Lymphoma only), and anthracycline (specifically for DLBCL, PMBCL, tFL, and Burkitt's lymphoma)
  • Measurable disease according to Lugano 2014 criteria for assessing FDG-PET/CT in lymphoma [2]. Lesions that have been previously irradiated will be considered measurable only if progression has been documented following completion of radiation therapy. If the only measurable disease is lymph node disease, at least 1 lymph node should be ≥ 1.5 cm
  • Two out of three target antigen expression required (IHC or flow per institutional guidelines) on the most recent biopsy available. We will analyze a tumor sample from the most recent relapse or development of refractory disease state (archival sample within <6 months) for antigen expression. Alternatively, a new biopsy will be obtained in case archival material is not available
  • Prior Auto CAR T permitted (washout 3 months)
  • Prior ASCT is permitted and prior AlloSCT is permitted if off immunosuppression and no clinically significant (more than grade 1) GVHD
  • Prior Allo CAR T permitted (washout 1 month, permitting hematologic parameters)
  • Prior Bispecific T-Cell Engager (BiTE) permitted (washout 3 months)
  • At least 2 weeks or 5 half-lives, whichever is shorter, must have elapsed since any prior systemic therapy at the time the subject is planned for leukapheresis, except for systemic inhibitory/stimulatory immune checkpoint (ICP) therapy and anti-CD20 mAb therapy
  • At least 3 half-lives must have elapsed after any prior systemic inhibitory/stimulatory ICP or anti-CD20 mAb therapy at the time the subject is planned for leukapheresis
  • ECOG 0 or 1
  • Acceptable Organ and Marrow Function (supportive care is allowed per institutional standards, i.e. filgrastim, transfusion) Cardiac ejection fraction (EF) greater than or equal to 45% as determined by an echocardiogram (ECHO) or Multigated Radionuclide Angiography (MUGA) Resting O2 saturation >90% on room air Total bilirubin ≤ 1.5 mg/dL except in individuals with Gilbert's syndrome Total bilirubin ≤ 3.0 mg/dL in individuals with Gilbert's syndrome Serum alanine aminotransferase (ALT) / aspartate aminotransferase (AST) <5 times the Upper Limit of Normal (ULN) for age
  • A creatinine clearance (as estimated by direct urine collection or the non-racial CKD-EPI equation) > 30 mL/min
  • Subjects must have the following hematologic function parameters:; Absolute neutrophil count (ANC) > 1000/µL Absolute Lymphocyte Count > 100/µL Platelets > 50,000/µL
  • Estimated life expectancy of more than 3 months independent from primary disease
  • Subjects of child-bearing or child-fathering potential must be willing to use study-defined highly-effective methods birth control from the time of enrollment on this study through the study follow-up period Study-defined highly-effective methods of birth control are implants, levonorgestrel releasing intrauterine systems, medroxyprogesterone acetate depot, tubal sterilization, sexual intercourse with a vasectomised male partner only (vasectomy must be confirmed by two negative semen analyses), and ovulation inhibitory progesterone

Who cannot take part

  • Known history of active seizure or presence of seizure activities or on active anti-seizure medications within the prior 12 months
  • Previous or concurrent malignancy with the following exceptions:; Adequately treated basal cell or squamous cell carcinoma (adequate wound healing is required prior to study entry In situ carcinoma of the cervix or breast, treated curatively and without evidence of recurrence for at least 2 years prior to the study Adequately treated breast or prostate carcinoma on hormonal maintenance therapies such as Lupron or tamoxifen and in clinical remission of ≥ 2 years A primary malignancy which has been completely resected / treated with curative intent and in complete remission of ≥ 2 years History of non-neurologic autoimmune disease (e.g. Crohn's disease, rheumatoid arthritis, systemic lupus erythematosus) requiring systemic immunosuppressive or systemic disease modifying agents (equivalent to > 10 mg prednisone daily) within the last 2 years
  • Concurrent radiotherapy (normal tissue sparing palliative radiotherapy allowed up to time of lymphodepletion)
  • For systemic therapy, at least 2 weeks or 5 half-lives, whichever is shorter, must have elapsed at the time of scheduled leukapheresis
  • In case of cerebral vascular accident (CVA) The CVA event must be > 12 months prior to leukapheresis Any neurological deficits must be stable
  • Ongoing immunosuppression for graft versus host disease treatment or prophylaxis (prior allogeneic stem cell transplant permitted)
  • Known history of infection with human immunodeficiency virus (HIV) or active hepatitis B (HBsAg positive), If there is a history of treated hepatitis B or hepatitis C, the viral load must be polymerase chain reaction (PCR) negative; antiviral secondary prophylaxis is required if HBsAg negative and anti-HBc positive
  • Known history of infection with hepatitis C virus (anti-HCV positive) unless viral load is undetectable per quantitative PCR and/or nucleic acid testing
  • Known history or presence of autoimmune CNS disease, such as multiple sclerosis, optic neuritis or other immunologic or inflammatory disease
  • Presence of active CNS disorder that, in the judgment of the investigator, may impair the ability to evaluate neurotoxicity
  • Active systemic fungal, viral or bacterial infection
  • Medical condition requiring prolonged use of systemic corticosteroids equivalent to Prednisone >10 mg/day
  • History of myocardial infarction, cardiac angioplasty or stenting, unstable angina, or other clinically significant cardiac disease within 6 months of enrollment
  • Baseline dementia that would interfere with therapy or monitoring, determined using Immune Effector Cell-Associated Encephalopathy (ICE) Assessment at baseline
  • History of severe immediate hypersensitivity reaction to any of the agents used in this study
  • History of a severe hypersensitivity reaction or contraindication to any of the agents used in the study (including fludarabine and cyclophosphamide)
  • If the subject has history of CNS disease, then he/she must Have no signs or symptoms of active CNS disease Have no active disease on magnetic resonance imaging (MRI)- e.g. vasogenic edema; stable, post-treatment changes are acceptable; Have no malignant cells of any type present in cerebrospinal fluid (CSF) on cytospin preparation and flow cytometry, regardless of number of white blood cells (WBCs)
  • Unable to give informed consent
  • Pregnant or breast-feeding woman
  • Clinical suspicion of central nervous system (CNS) lymphoma
  • ECOG 2 or higher (unless due to lymphoma diagnosis)
  • Subjects of both genders who are not willing to practice highly effective birth control from the time of informed consent through 6 months after the CAR19.20.22infusion
  • In the investigator's judgment, the subject is unlikely to complete all study-specific visits or procedures, including follow-up visits, or comply with the study requirements for participation

Where in United States

  • University of Maryland, BaltimoreBaltimore, United StatesEnrolling by invitation

About the trial

What the trial wants to find out

The goal of this study is to treat patients diagnosed with relapsed or refractory positive B cell lymphoma - positive for 2 or more target antigens - with CAR19.20.22 CAR T-cells.

Read full original descriptionShow less

Based on the preclinical characteristics of the LTG2950, CAR19.20.22 tri-specific CAR T-cells the Investigators have developed the following hypotheses to be tested in our phase Ia clinical trial. The Investigators hypothesize that these novel CAR T-cells will show:

* good safety and tolerability * a high degree of efficacy * very good persistence * an acceptable level of exhaustion

The 3 groups in the trial

  • Dose Level -1Treatment being tested

    Autologous CAR19.20.22 T-cells, 0.75 × 10\^6 cells/kg (±20%), IV infusion following fludarabine/cyclophosphamide lymphodepletion.

    Treatment: CD19.20.22 CAR T cells and Fludarabine and Cyclophosphamide

  • Dose Level 0Treatment being tested

    Autologous CAR19.20.22 T-cells, 1.0 × 10\^6 cells/kg (±20%), IV infusion following fludarabine/cyclophosphamide lymphodepletion.

    Treatment: CD19.20.22 CAR T cells and Fludarabine and Cyclophosphamide

  • Dose Level 1Treatment being tested

    Autologous CAR19.20.22 T-cells, 2.5 × 10\^6 cells/kg (±20%), IV infusion following fludarabine/cyclophosphamide lymphodepletion.

    Treatment: CD19.20.22 CAR T cells and Fludarabine and Cyclophosphamide

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
A Phase Ia Study of Tri-specific CAR19.20.22 Chimeric Antigen Receptor (CAR) T-cells for Patients With Relapsed/Refractory B-Cell Lymphomas
Plain-language title
Tests CD19.20.22 CAR T-cells in adults with relapsed B-cell lymphomasGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Record updated
14 September 2026