Breyanzi (lisocabtagene maraleucel) is a CD19-directed genetically modified autologous T-cell immunotherapy indicated for the treatment of large B-cell lymphoma (LBCL), chronic lymphocytic leukemia (CLL), small lymphocytic lymphoma (SLL), follicular lymphoma (FL), mantle cell lymphoma (MCL), and marginal zone lymphoma (MZL) in adults. Breyanzi was first approved in February of 2021, and has since received additional approvals. Read on to learn more about Breyanzi, including its approvals, dosage and administration information, adverse reactions, and more.

Medication Overview:
  • Brand Name: Breyanzi
  • Generic Name: lisocabtagene maraleucel
  • Treatment for: Large B-Cell Lymphoma, Chronic Lymphocytic Leukemia, Small Lymphocytic Lymphoma, Follicular Lymphoma, Mantle Cell Lymphoma, Marginal Zone Lymphoma
  • Manufacturer: Bristol-Myers Squibb
  • Initial FDA Approval: February 2021
Warnings and Precautions:
  • Hypersensitivity Reactions: Monitor for hypersensitivity reactions during infusion
  • Serious Infections: Monitor patients for signs and symptoms of infection; treat appropriately. 
  • Prolonged Cytopenias: Patients may exhibit Grade 3 or higher cytopenias for several weeks following Breyanzi infusion. Monitor complete blood counts.
  • Hypogammaglobulinemia: Monitor and consider immunoglobulin replacement therapy.
  • Secondary Malignancies: T cell malignancies have occurred following treatment of hematologic malignancies with BCMA- and CD19-directed genetically modified autologous T cell immunotherapies, including Breyanzi. In the event that a secondary malignancy occurs after treatment with Breyanzi, contact Bristol-Myers Squibb at 1-888-805-4555.
Dosage and Administration:

For autologous use only. For intravenous use only.

  • Do NOT use a leukodepleting filter.
  • Administer a lymphodepleting regimen of fludarabine and cyclophosphamide before infusion of Breyanzi.
  • Verify the patient’s identity prior to infusion.
  • Premedicate with acetaminophen and an H1 antihistamine.
  • Confirm availability of tocilizumab prior to infusion.
  • Dosing of Breyanzi is based on the number of chimeric antigen receptor (CAR)-positive viable T cells.

For LBCL: after one line of therapy, the dose is 90 to 110 × 106 CAR-positive viable T cells; after two or more lines of therapy, the dose is 50 to 110 × 106 CAR-positive viable T cells.

For CLL/SLL, FL, MCL and MZL: the dose is 90 to 110 × 106 CAR-positive viable T cells.

Contraindications:

None.

Drug Interactions:

HIV and the lentivirus used to make Breyanzi have limited, short spans of identical genetic material (RNA). Therefore, some commercial HIV nucleic acid tests may yield false-positive results in patients who have received Breyanzi.

Adverse Reactions:

The most common adverse reactions (incidence ≥30%) in:

  • LBCL are fever, CRS, fatigue, musculoskeletal pain, and nausea. The most common Grade 3-4 laboratory abnormalities include lymphocyte count decrease, neutrophil count decrease, platelet count decrease, and hemoglobin decrease.
  • CLL/SLL are CRS, encephalopathy, fatigue, musculoskeletal pain, nausea, edema and diarrhea. The most common Grade 3-4 laboratory abnormalities include neutrophil count decrease, white blood cell decrease, hemoglobin decrease, platelet count decrease, and lymphocyte count decrease.
  • FL are CRS. The most common Grade 3-4 laboratory abnormalities include lymphocyte count decreased, neutrophil count decreased, and white blood cell decreased.
  • MCL are CRS, fatigue, musculoskeletal pain, and encephalopathy. The most common Grade 3-4 laboratory abnormalities include neutrophil count decrease, white blood cell decrease, and platelet count decrease.
  • MZL are CRS. The most common Grade 3-4 laboratory abnormalities include lymphocyte count decreased, neutrophil count decreased, and white blood cell decreased.
Example of Lisocabtagene Maraleucel in a Guideline

Immunotherapy for the Treatment of Lymphoma

  • Society for Immunotherapy of Cancer, March 2025
  • Lisocabtagene maraleucel is recommended for adult patients with relapsed or refractory CLL or SLL who have received at least 2 prior lines of therapy, including a BTK inhibitor and a BCL-2 inhibitor.”

Please note: This article is current as of February 25, 2026. Consult our clinical guidelines library or drug information tool to ensure you always have the most up-to-date information.

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