ClinicalTrials.gov record NCT06340737

AutologousCD22 Chimeric Antigen Receptor (CAR)T Cells in w/Recurrent/Refractory B Cell Lymphomas

Record copied from ClinicalTrials.gov: Oct 10, 2026AI summaries generated: Sep 17, 2026

Phase Ib Clinical Trial of Autologous CD22 Chimeric Antigen Receptor (CAR) T Cells in Adults With Recurrent or Refractory B Cell Lymphomas

StatusRecruitingThe study is currently enrolling participants. Only the study team can say whether a particular person can join.
Study typeInterventionalA study in which researchers assign participants to one or more interventions, such as a drug, procedure, device, behavioural programme or other approach, to measure their effects.
PhasePhase 1An early-stage study, usually small, mainly to check safety, side effects and how much of a treatment can be given. Whether it works is not the main question yet.
Age18 years old and older
SexAll
LocationUnited States
AI summaryWhat this study is about, in plain languageShow ▾Hide ▴

AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.

This Phase 1, non-randomized interventional study gives autologous CD22-directed CAR T cells after lymphodepleting chemotherapy to adults with various relapsed or refractory B‑cell lymphomas. It looks at whether the cells can be manufactured to required specifications, what dose is safe to use in future studies, and early signs of tumor response. Participants undergo cell collection (leukapheresis), CAR T manufacturing, lymphodepleting chemotherapy, and a CAR T infusion with a short hospitalization.

What it is studying. Whether CD22-directed CAR T cells can be reliably manufactured and safely given at a tolerable dose, and how patients' disease responds after treatment.

What the researchers hope to learn. Scientific goals include assessing manufacturing feasibility, establishing the maximum tolerated dose / recommended Phase 2 dose (MTD/RP2D), measuring overall response rate at 3 months for follicular lymphoma and mantle cell lymphoma, and collecting longer-term outcomes such as progression-free survival, overall survival, and duration of response across included B‑cell lymphoma subtypes.

What this study is about

The study's own summary, as published on ClinicalTrials.gov. Underlined terms have a short explanation.

This is a non-randomized clinical trial to evaluate the safety and efficacy of CD22CART administered after lymphodepleting chemotherapy in adults with relapsed / refractory B Cell Lymphomas. All evaluable participants will be followed for overall survival (OS), progression free survival (PFS), and duration of response (DOR). An evaluable participant is one who completes leukapheresis, lymphodepleting chemotherapy and CART infusion.

Interventions being studied

Being studied in this trial does not mean the treatment or procedure is approved or available for this condition.

Drug
  • CD22CART Infusion

Eligibility

The criteria exactly as listed on ClinicalTrials.gov. Only the study team can say whether they apply to you.

Inclusion criteria

  • Disease: Must have histologically confirmed disease as defined by WHO 2016[117] of one of the following:
  • Follicular Lymphoma, grade 1-3a
  • Relapsed or refractory disease after at least 2 lines of systemic therapy. Prior therapy must have included an anti-CD20 monoclonal antibody combined with systemic therapy (single-agent anti- CD20 antibody does not count as line of therapy for eligibility nor does local radiation). Anti-CD20 antibody is not required for participants with CD20 negative disease. A systemic therapy includes, but is not limited to: Bendamustine, CHOP, CVP, CART therapy, lenalidomide, or platinum-based chemotherapy.
  • Relapsed or progressive disease within 24 months of initiation of the initial course of chemotherapy (also known as progression of disease within 24 months POD24). Initial treatment must have included an anti-CD20 monoclonal antibody (unless CD20 negative) plus either Bendamustine, CHOP or CVP (R-Chemo). Must have completed 3 or more cycles of R-Chemo. Progression is measured from the initial day of treatment of the first cycle of R-Chemo. In the case of those who received anti-CD20 monoclonal antibody monotherapy previously and then received R-Chemo are also eligible if they are POD24, and progression is measured from the initial day of treatment of the first cycle of R-Chemo and not from the initial day of anti-CD20 monoclonal antibody monotherapy.
  • Mantle Cell Lymphoma 1. Relapsed or refractory disease after at least 2 lines of systemic therapy. Prior therapy must have included an anti-CD20 monoclonal antibody combined with systemic therapy. Anti-CD20 antibody is not required for participants with CD20negative disease.
  • Participants who have received an anti-CD20 monoclonal antibody in combination with chemotherapy AND a Bruton's Tyrosine Kinase inhibitor as a single line of therapy are also eligible.
  • Hairy cell leukemia (HCL)
  • Diagnosis of HCL and require treatment as defined by having HCL-related anemia (hemoglobin <11 g/dL), thrombocytopenia (platelets<100 x 10\^9 /L), or neutropenia (absolute neutrophil count below 1.5 x 10\^9/L); symptomatic splenomegaly or adenopathy; or other constitutional symptoms directly related to HCL;
  • Must have progressed or been refractory to 2 lines of therapy including a purine nucleoside analog.
  • Lymphoplasmacytic lymphoma (Waldenstrom macroglobulinemia (WM)) - participants must meet all eligibility criteria listed
  • Must have confirmed diagnosis of WM based on Second International Workshop on WM 2. Relapsed or refractory disease after 2 or more lines of therapy
  • Prior therapies must include a i. BTKi ii. either chemotherapy and/or proteasome inhibitor 3. Requires treatment based on the recommendations from the Second International Workshop on WM 4. Requires the presence of serum IgM that is at least 2 times the upper limit of normal 5. Patients cannot require plasmapheresis for symptomatic hyperviscosity. 6. Patients cannot have symptomatic central nervous system involvement (Bing-Neel syndrome) that would prevent the assessment of neurotoxicity 7. Patients cannot have transformed to large B cell lymphoma Burkitt lymphoma (BL)
  • Relapsed or refractory to front line chemoimmunotherapy; Participants with high-grade B-cell lymphoma with MYC and BCL2 and/orBCL6 rearrangements will be excluded.
  • Marginal zone lymphoma (MZL)
  • Must have received 2 prior lines of therapy including rituximab in combination with chemotherapy or a BTKi
  • Histologically confirmed Large B-cell lymphoma (LBCL) by WHO 2008 including:
  • i. DLBCL not otherwise specified; DLBCL associated with chronic inflammation; Epstein Barr virus (EBV)+ DLBCL of the elderly; OR ii. primary mediastinal (thymic) large B cell lymphoma; OR iii. transformation of follicular lymphoma, marginal zone lymphoma or chronic lymphocytic leukemia/small lymphocytic lymphoma to DLBCL; OR iv. Follicular Lymphoma Grade 3B
  • Subjects with DLBCL, Follicular Lymphoma Grade 3B -or-
  • Subjects with transformed FL and MZL who HAVE NOT received chemotherapy prior to transformation:
  • Must have received an anthracycline regimen and an anti CD20 monoclonal antibody (unless documented CD20-negative) and be refractory or relapsed after second line of LBCL treatment. Subjects with a partial response to second line therapy must be ineligible for autologous transplant.
  • Subjects with transformed FL and MZL who HAVE received anthracycline-containing chemotherapy prior to transformation must have progressed, had SD or recurred with transformed disease after initial treatment for LBCL:
  • Must have progressed, had SD, or recurred with transformed disease after initial treatment for LBCL
  • Note: T cell/histiocyte rich large B cell lymphoma is not eligible
  • The following criteria apply to all participants unless otherwise noted:
  • Measurable Disease:
  • a. Participants with Follicular Lymphoma, Mantle Cell Lymphoma, Burkitt Lymphoma and Marginal Zone Lymphoma must have measurable disease according to the revised IWG Response Criteria for Malignant Lymphoma. Lesions that have been previously irradiated will be considered measurable only if progression has been documented following completion of radiation therapy.
  • b. If participants with Follicular Lymphoma, Mantle Cell Lymphoma, Burkitt Lymphoma, Marginal Zone Lymphoma, and Large B cell Lymphoma that do not have measurable disease according to the revised IWG Response Criteria for Malignant Lymphoma, but have disease that is greater than 2% of events by flow cytometry in the peripheral blood or bone marrow will be eligible
  • c. Participants with Hairy Cell Lymphoma must have presence of leukemic cells in the bone marrow or blood stream.
  • d. Participants with Lymphoplasmacytic lymphoma must have the presence of serum IgM that is at least 2 times the upper limit of normal.
  • CD22 expression, at any level: Participants must have archival tissue available for analysis of CD22 expression or must be willing to undergo biopsy of easily accessible disease.
  • Participants who have progressed or relapsed after prior autologous OR allogeneic SCT must be at least 100 days post-transplant, have no evidence of GVHD, and have been without immunosuppressive drugs at least 30 days.
  • Meet required prior therapy washout windows prior to leukapheresis (see inclusion criteria for leukapheresis for details).
  • Participants with prior CAR therapy must be at least 30 days post CAR infusion and have < 5% CD3+ cells express the previous CAR prior to apheresis, if a validated assay is available.
  • Toxicities from prior therapy stable or resolved (except for clinically non-significant toxicity and cytopenias covered in footnote).
  • Age ≥ 18 years of age. 9. Adequate performance status (ECOG 0, 1, or 2; or Karnofsky > 60%) 10. Adequate organ and marrow function as defined by:
  • ANC ≥ 750/uL
  • Platelet count ≥ 50,000/uL
  • ALC ≥ 150/uL
  • Adequate renal, hepatic, pulmonary and cardiac function defined as: Creatinine < 2 mg/dL OR Creatinine clearance (as estimated by Cockcroft Gault Equation) ≥ 45 mL/min, Serum ALT or AST ≤ 10 x ULN (except in participants with liver involvement by lymphoma), Total bilirubin ≤ 1.5 mg/dl, except in participants with Gilbert's syndrome, Cardiac left ventricular ejection fraction ≥ 45%, no evidence of clinically significant pericardial effusion as determined by an Echocardiogram.
  • No clinically significant pleural effusion or ascites
  • Baseline oxygen saturation > 92% on room air ANC Platelet ALC Cr CreatCl AST/ALT Bilirubin LVEF O2 Sat
  • Participants with CNS involvement or a history of CNS involvement are eligible only in the absence of neurologic symptoms that may mask or interfere with neurological assessment of toxicity 12. Females of childbearing potential must have negative pregnancy test. 13. Females of child-bearing potential and males of child-fathering potential must be willing to practice birth control from time of enrollment and for 4 months post preparative lymphodepletion regimen or as long as CAR cells are detectable.
  • Must be able to provide informed consent (LAR is permitted if participant able to provide verbal assent).
  • A participant will not be excluded because of pancytopenia ≥ Grade 3 if it is felt by the investigator to be due to underlying disease.

Exclusion criteria

  • Presence rapidly progressive disease that in the estimation of the investigator and sponsor would compromise ability to complete study therapy.
  • History or current other malignancies, apart from non-melanoma skin cancer, low-grade untreated prostate cancer under observation, or carcinoma in situ, unless disease free for at least 3 years, or in remission 1-2 years and Principal Investigator assesses other malignancy as unlikely to return within 1 year or interfere with CAR T cell safety
  • Presence of active fungal, bacterial, viral or other infection requiring intravenous antimicrobials. Simple UTI or uncomplicated bacterial pharyngitis is permitted if responding to active treatment.
  • Ongoing HIV, HBV, or HCV infection. History of HBV or HCV is permitted if viral load is undetectable by qPCR and/or nucleic acid testing.
  • Active cerebrovascular ischemic/hemorrhage, dementia, cerebellar disease, or autoimmune disease with CNS involvement that in investigator's judgement impair ability to evaluate neurotoxicity.
  • History of MI, cardiac angioplasty or stenting, unstable angina or other clinically significant cardiac disease within 12 months of enrollment.
  • Severe, immediate hypersensitivity reaction attributed to compounds of similar chemical or biologic composition to any agents used in study.
  • Is pregnant or breastfeeding.
  • Active primary immunodeficiency or history of autoimmune disease (e.g. Crohn's disease, rheumatoid arthritis, systemic lupus) requiring systemic immunosuppression/systemic disease modifying agents within the last 2 years.
  • May NOT, in investigator's judgment, have any medical condition likely to interfere with assessment of safety or efficacy, or be likely to complete all protocol-required visits and procedures.

Study description and what participation involves

The registry record has no detailed description beyond the summary above.

AI summaryWhat participation may involve, in plain languageShow ▾Hide ▴

AI-written from the registry record, not the study's own wording. May contain errors or omissions. Check the registry text on this page and the original record ↗ before acting on it.

Participants undergo leukapheresis (collection of their white blood cells), receive lymphodepleting chemotherapy, and are admitted for the CD22 CAR‑T cell infusion and monitoring. Hospital stay is typically about 5–7 days after infusion, with discharge when adverse events are controlled; some noncritical toxicities may be managed after discharge. The study may require a biopsy for CD22 testing and multiple follow‑up visits and safety checks; participants are followed long‑term (primary outcome windows up to about 6 years) for disease status and survival. An evaluable participant completes leukapheresis, the lymphodepleting chemotherapy, and the CAR‑T infusion.

How the study is structured. Phase 1, open-label interventional trial with non-randomized, parallel cohorts by lymphoma subtype. Participants provide cells for manufacturing, receive lymphodepleting chemotherapy, and get a single infusion of autologous CD22 CAR T cells; there is no masking.

Questions you could ask

These questions are suggestions for a conversation with the study team or your own clinician, not advice.

  • This is an early-phase study, mainly about safety and dose. What is already known about this treatment?
  • The listed sites are in United States. Is any of them reachable for me, and does the study help with travel?
  • Which of the eligibility criteria would need to be checked with tests before I could join?

More on Waldenström macroglobulinemia

Important dates

Study start
Mar 29, 2024
Primary completion
April 2031 (estimated)
Study completion
April 2031 (estimated)
Target enrollment
148 participants (estimated)
Last updated on registry
Aug 12, 2026
Data verified
Oct 10, 2026

Sponsor and research team

The lead sponsor funds and oversees the trial. A pharmaceutical or biotech company sponsor typically means the study is testing that company's drug or device; a hospital, university, or government agency usually indicates investigator-initiated or publicly funded research.

Lead sponsor
Stanford University
Collaborators
  • The Leukemia and Lymphoma Society

Central study contact

If you're interested in participating, the central contact can answer general questions about the study — including eligibility requirements and how to find a recruiting site near you. Actual eligibility is determined by the site's medical team.

Participating sites (1)

Terms used on this page · explanations by MedicalUpdates.ai

randomized
Participants are assigned to the study groups by chance, like a coin toss, rather than chosen by the doctor or the participant. This is done so the groups are comparable.
relapsed
A condition that improved with treatment and has since returned or worsened.
refractory
A condition that has not responded to a treatment. 'Relapsed' means it responded and then came back; 'refractory' means it did not respond in the first place.
overall survival
The length of time from the start of the study or treatment that participants are alive, whatever the cause of death.
progression free survival
The length of time during and after treatment that a person lives without the condition getting worse, as defined by the study.
histologically confirmed
Removal of a small piece of tissue so it can be examined under a microscope. 'Biopsy-proven' or 'histologically confirmed' means the diagnosis was confirmed by examining tissue under a microscope.
Prior therapy
Treatment a person has already had for the condition. A 'line of therapy' is one course of treatment; studies often require, or limit, the number of prior lines.
absolute neutrophil count
The number of neutrophils, a type of white blood cell that fights infection, in a blood sample. Studies often require it to be above a set level.
eligibility criteria
The rules the study team uses to decide who may take part. They are usually split into inclusion criteria and exclusion criteria.
upper limit of normal
The highest value of a blood test that a laboratory considers normal. Criteria such as '≤ 3 × ULN' mean the result must be no more than three times that value.
immunosuppressive
A medicine that reduces the activity of the immune system. Studies of autoimmune conditions often require a stable dose, a prior failure, or a washout of such medicines.
washout
A period during which a participant stops a previous treatment before starting the study treatment, so the earlier treatment does not affect the results.
inclusion criteria
The conditions a person must meet to be considered for the study, for example a confirmed diagnosis, an age range or a test result.
performance status
A scale from 0 to 5 that describes how a person's condition affects daily activity. 0 means fully active; 1 means restricted in strenuous activity; 2 means able to self-care but unable to work; higher numbers mean more limitation.
Karnofsky
A scale from 100 (no complaints) down to 0 that describes how well a person can carry out daily activities. Studies often require a minimum score.
Creatinine clearance
A measure of kidney function, calculated from a blood creatinine level together with age, weight and sex.
Echocardiogram
An ultrasound scan of the heart. A transesophageal echocardiogram is done through a probe passed into the food pipe for a closer view.
Baseline
Measurements taken at the start of the study, before any study treatment, so that later results can be compared with them.
childbearing potential
Studies often ask participants who could become pregnant, or could father a child, to use contraception during the study and for a period afterwards, because the effect of the treatment on a pregnancy is unknown.
enrollment
The number of participants a study plans to include, or has included. 'Estimated' means the planned number; 'actual' means the number who joined.
informed consent
The process of explaining a study, including its risks and what participation involves, so that a person can decide freely whether to take part. Consent is usually documented in writing, and a participant can choose to leave the study later.
LAR
A person who is legally allowed to make decisions, including consent to research, on behalf of someone who cannot consent for themselves.
assent
A child's or dependent adult's agreement to take part, given alongside the formal consent of a parent or legal representative.
sponsor
The organisation or person that initiates the study and has authority over it. The sponsor may be a company, hospital, university, government agency or individual, and is not necessarily the organisation that funds the study.
Principal Investigator
The doctor or scientist responsible for running the study at a site or overall.
CAR T
A treatment in which a person's own immune cells (T cells) are collected, modified in a laboratory to recognise a target, and returned to the body.
Exclusion Criteria
The conditions that rule a person out even if they meet the inclusion criteria, for example other illnesses, certain medicines or pregnancy.

The study record on this page is reproduced from ClinicalTrials.gov, a database of the U.S. National Library of Medicine, where it was submitted by the study sponsor. MedicalUpdates.ai does not own this content, is not affiliated with or endorsed by ClinicalTrials.gov, NIH, or the U.S. Government, and does not verify the record. Plain-language notes, the glossary and the questions above are added by this site; text in the boxes marked "AI summary" was written by an AI model and may contain errors. Registry records change over time. Check the original record for the current version and discuss eligibility or participation with a qualified healthcare professional.

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