NCT05797233Active, not recruitingPhase 1

Trial of Anti-CD19 and Anti-CD20 Bicistronic Chimeric Antigen Receptor T Cells for Treating B-Cell Malignancies

A Phase I Trial of Anti-CD19 and Anti-CD20 Bicistronic Chimeric Antigen Receptor T- Cells for Treating B-cell Malignancies

Source: ClinicalTrials.gov · Last updated 16 Oct 2026

Brief summary (registry, in English)

Background: About 23,000 people die from B-cell cancers in the US each year. These cancers, often called leukemia or lymphoma, affect a type of white blood cell called B cells. These cancers are difficult to treat, and the therapies used can have bad side effects. Researchers want to try a new type of treatment. This new treatment uses a patient s own immune cells (T cells) that are modified to carry genes (chimeric antigen receptor, or CAR T cells) to kill cancer cells. Objective: To test a treatment using CAR T cells in people with B-cell cancers. Eligibility: People aged 18 to 75 years with a B-cell cancer that has not been controlled with standard therapies. Design: Participants will be screened. They will have: Blood and urine tests. A needle will be inserted to draw a sample of tissue from inside the hip bone. For some patients, a needle will be inserted into their lower back to get a sample of the fluid around their spinal cord. A tumor biopsy might be needed. Imaging scans. Tests of their heart function. Participants will undergo apheresis: Blood will be drawn from a needle in an arm. The blood will pass through a machine that separates out the T cells. The remaining blood will be returned to the body through a second needle. Participants will receive 2 chemotherapy drugs once a day for 3 days. Participants will be admitted to the hospital for at least 9 days. Their T cells, now modified, will be infused back into their bloodstream through a tube placed in a large vein. Follow-up visits will continue for 5 years, but patients will need to stay in touch with the CAR treatment team for 15 year.

Status (registry): Active, not recruiting
Phase (registry): Phase 1
Study type: Interventional
Enrollment: 58 (estimated)
First submitted: 1 Apr 2023
Start date: 28 Aug 2023
Primary completion date: 30 Dec 2028
Lead sponsor: National Cancer Institute (NCI)
Diseases: Chronic lymphocytic leukaemia
NCT number: NCT05797233

What you commit to

Study type: Interventional · Phase 1
Planned participants: 58
From 28 Aug 2023 to the primary completion date, 30 Dec 2028
1 site in 1 country
Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

Participants that require urgent therapy due to tumor mass effects or spinal cord compression.
Participants must not have received any anti-CD20 or anti-CD19 antibody products in the past 60 days prior to CAR T-cell infusion.
Prior allogeneic stem cell transplant
Systemic corticosteroid steroid therapy of any dose greater than 5 mg/day or more of prednisone or equivalent is not allowed within 14 days prior to the required leukapheresis, or the initiation of the conditioning chemotherapy regimen. Corticosteroid creams, ointments, and eye drops are allowed.
Participants on systemic anticoagulant therapy except aspirin.
Checkpoint inhibitor drugs such as pembrolizumab or nivolumab or other antibodies targeting PD-1 or PDL-1 within 180 days of protocol enrollment. This is because of possible effects checkpoint inhibitor therapy could have on the patient s T- cells.

Other illness

HIV-positive patients.
Participants with second malignancies in addition to their B-cell malignancy are not eligible if the second malignancy has required treatment (including maintenance therapy) within the past 3 years or is not in complete remission. There are two exceptions to this criterion: successfully treated non-metastatic basal cell or squamous cell skin carcinoma.
Active uncontrolled systemic infections (defined as infections causing fevers within 48 hours of the date of planned protocol chemotherapy start and infections requiring intravenous antibiotics when intravenous antibiotics have been administered for less than 72 hours at the time of protocol chemotherapy start).
Significant neurologic disorders that are not completely and permanently resolved and not requiring current treatment.
Any form of primary immunodeficiency (such as Severe Combined Immunodeficiency Disease).
History of severe immediate hypersensitivity reaction to any of the agents used in this study.
Active central nervous system/brain metastases or cerebrospinal fluid malignancy.

Lab values

Currently pregnant (confirmed with beta-HCG serum or urine pregnancy test performed at screening) or breastfeeding.
Active coagulation disorders or other major uncontrolled medical illnesses of the cardiovascular, respiratory, endocrine, renal, gastrointestinal, genitourinary or immune system, history of myocardial infarction, history of ventricular tachycardia or ventricular fibrillation, active cardiac arrhythmias (active atrial fibrillation is not allowed, resolved atrial fibrillation not requiring current treatment is allowed (anticoagulants count as current treatment), active obstructive or restrictive pulmonary disease, active autoimmune diseases such as rheumatoid arthritis.

Other

Participants that have active hemolytic anemia.

Criteria the registry did not label

INCLUSION CRITERIA:
- Malignancy criteria
CD19 and or CD20 expression is required. For all lymphoma types, eligibility criteria are met if there is uniform expression of both CD19 and CD20. Eligibility criteria are also met with expression of either CD19 or CD20. CD19 and/or CD20 expression must be "uniform". "Uniform" CD19 or CD20 expression is defined by CD19 and/or CD20 antigen expression on lymphoma cells with no obvious lymphoma population lacking antigen expression. Antigen expression can be assessed by either immunohistochemistry or flow cytometry.
Pathology confirmed B-cell malignancy. Only when insufficient biopsy material is available to allow CD19 and CD20 expression assessment at the NIH, CD19 and/or CD20 staining performed at another institution can be used.
At least 14 days must elapse between the time of any prior systemic treatment (including corticosteroids) and protocol-required leukapheresis or start of protocol conditioning chemotherapy.
At least sixty days must elapse from therapy with antibodies targeting CD19 or CD20 and CAR T-cell infusion.
At least 180 days must elapse after any prior CAR T-cell therapy, but otherwise, prior CAR T-cell therapy is allowed.
Participants with DLBCL (including all subtypes such as primary mediastinal B-cell lymphoma and high-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangement) must have received at least two prior regimens at least one of which must have contained doxorubicin and an anti-CD20 monoclonal antibody.
Follicular lymphoma participants must have received at least 2 prior regimens including at least 1 regimen with chemotherapy and 1 regimen with an anti-CD20 monoclonal antibody.
Burkitt lymphoma participants must have had at least 1 prior cytotoxic chemotherapy- containing regimen that also contained an anti-CD20 monoclonal antibody.
All participants with CLL or small lymphocytic lymphoma must have had at least 1 prior line of treatment, and these participants must have had progressive CLL/SLL after exposure to ibrutinib or another Bruton tyrosine kinase inhibitor and venetoclax.
T-cell rich B-cell lymphoma is eligible if previously treated with at least 2 lines of therapy.
Waldenstrom s macroglobulinemia/lymphoplasmacytic lymphoma patients are eligible if previously treated with at least 2 regimens including exposure to a monoclonal antibody, a bruton tyrosine kinase inhibitor, and cytotoxic chemotherapy.
Participants with mantle cell lymphoma are eligible after receiving a Bruton tyrosine kinase (BTK) inhibitor, an anti-CD20 monoclonal antibody, and at least one of the following chemotherapy drugs: cytarabine, bendamustine, or an anthracycline.
Other B-cell lymphoma types, including B-cell lymphoma unclassifiable with features intermediate between DLBCL and Hodgkin lymphoma (Gray zone), that are not specifically mentioned above are allowed if the participant has received at least 2 lines of therapy at least 1 of which must have contained cytotoxic chemotherapy.
Primary central nervous system lymphoma patients are not eligible.
- All participants must have measurable malignancy as defined by at least one of the criteria below.
- \- Lymphoma or leukemia masses that are measurable (minimum 1.5 cm in largest diameter) by CT scan is required for all diagnoses except CLL unless bone marrow or blood involvement with malignancy is detected. All masses must be less than or equal to
- 10.0 cm in the largest diameter.
For a lymphoma mass to count as measurable malignancy, it must have abnormally increased metabolic activity when assessed by positron emission tomography (PET) scan. Exceptions to this rule are malignancies that do not consistently display increased metabolic activity on PET scans such as CLL/Small lymphocytic lymphoma.
For CLL and lymphoma with only bone marrow and/or blood involvement no mass is necessary, but if a mass is not present, bone marrow and/or blood malignancy must be detectable by flow cytometry. Note that leukemia cells must make up 1% or less of peripheral blood lymphocytes within 2 weeks of the time of protocol enrollment in CLL participants for CLL participants to be eligible.
- Other inclusion criteria:
Greater than or equal to 18 years of age and less than or equal to 75 years of age.
Clinical performance status of ECOG 0-1.
Absolute neutrophil count greater than or equal to 1000/mm\^3 without the support of filgrastim or other growth factors
Platelet count greater than or equal to 50,000/mm\^3 without transfusion support
Hemoglobin greater than 8.0 g/dl
Serum ALT and AST less or equal to 3 times the upper limit of the institutional normal unless liver involvement by malignancy is demonstrated. If liver involvement with malignancy is detected, ALT and AST must be less than or equal to 5 times the upper limit of normal.
Serum creatinine less than or equal to 1.5 mg/dl
Total bilirubin less than or equal to 2.0 mg/dl
Room air oxygen saturation of 92% or greater
Participants of child-bearing or child-fathering potential must be willing to practice birth control from the time of enrollment on this study and for four months after receiving the protocol treatment.
A participant with a negative blood PCR test for hepatitis B DNA test can be enrolled. If hepatitis B DNA (PCR) testing is not available, participants with a negative hepatitis B surface antigen and negative hepatitis B core antibody can be enrolled.
Participants must be tested for the presence of Hepatitis C antigen by PCR and be HCV RNA negative in order to be eligible. Only if Hepatitis C PCR testing is not available ina timely manner, participants who are Hepatitis C antibody-negative can be enrolled.
Cardiac ejection fraction of greater than or equal to 50% by echocardiography and no evidence of hemodynamically significant pericardial effusion as determined by an echocardiogram within 4 weeks of treatment start.
Participants must be able to understand and be willing to sign a written informed consent.
Participants who have either been previously treated with genetically-modified T- cells including CAR T -cells of any specificity are potentially eligible if at least 180 days have elapsed since the prior infusion of genetically-modified T- cells. An exception to this is patients previously treated on this protocol can be re-treated on this protocol 8 weeks or more after the first treatment on this protocol.

Age in the registry: 18 years to 75 years · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

Site	City	Country	Site status
National Institutes of Health Clinical Center Coordinator of this site? Confirm its status	Bethesda	United States	Unknown status

This page is information, not medical advice. Discuss any trial with your doctor.