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A Feasibility Trial of Tazemetostat Plus CAR T Cell Therapy in B-cell Lymphomas

A Feasibility Trial of Tazemetostat Plus CAR T Cell Therapy in B-cell Lymphomas

Status
Active, not recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05934838
Enrollment
15
Registered
2023-07-07
Start date
2023-10-04
Completion date
2031-09-01
Last updated
2026-06-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

B-Cell Lymphoma, Diffuse Large B Cell Lymphoma, Follicular Lymphoma, Mantle Cell Lymphoma

Keywords

CAR T-cell, Tazemetostat, FL, MCL, DLBCL

Brief summary

This is a clinical trial to evaluate the feasibility and safety of giving tazemetostat followed by standard of care CAR T cell infusion in previously treated diffuse large b-cell lymphoma (DLBCL), follicular lymphoma (FL), and mantle cell lymphoma (MCL). The investigators hypothesis is that this combination has the potential to significantly improve the ability of CART cells to recognize and kill lymphoma cells without a significant impact on safety. Participants will receive the tazemetostat pills before and after receiving their CAR T cell therapy, for up to 12 months after CAR T cell administration. Patients will be followed for up to 5 years.

Detailed description

This is a single arm, open label, clinical trial to evaluate the feasibility and safety of oral tazemetostat followed by standard of care CAR T cell infusion in previously treated DLBCL, FL, and MCL. The investigators hypothesis is that this combination has the potential to significantly improve the ability of CART cells to recognize and kill lymphoma cells without a significant impact on safety. Tazemetostat 800 mg will be given twice daily by mouth for at least 1 week prior to apheresis, during the period between apheresis and CAR T infusion, and following lymphodepletion chemotherapy until Day 7 post-CAR T therapy. Once patients' platelets and neutrophil counts recover, tazemetostat will be resumed. Tazemetostat treatment will continue for up to 6 months in patients with complete responses and up to 12 months in patients with partial responses. A 3+3 trial design will be implemented for the first six patients enrolled. The regimen will be considered feasible if at least 12 out of 15 subjects are able to receive at least 2 weeks of tazemetostat, generate the CAR T cell product and receive CAR T cell therapy.

Interventions

Participants will take 800 mg of tazemetostat twice a day starting 7 days before apheresis and continue to take tazemetostat until lymphodepletion, which is chemotherapy given prior to receiving the CAR T cells. Participants will stop taking tazemetostat after lymphodepletion until after CAR T cell infusion. Once lymphocyte counts increase, tazemetostat will be resumed and tazemetostat will be taken for 6 - 12 months, depending on participant response.

Sponsors

Weill Medical College of Cornell University
Lead SponsorOTHER
Epizyme, Inc.
CollaboratorINDUSTRY
Applebaum Foundation
CollaboratorUNKNOWN
American Society of Clinical Oncology
CollaboratorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Confirmed diagnosis of DLBCL, FL, or MCL * Eligible to receive standard of care CAR T cells * Have received at least 1 prior therapies

Exclusion criteria

* Active viral infection with HIV or hepatitis type B or C * Active, uncontrolled systemic fungal, bacterial or viral infection * Active treatment for another cancer * Pregnant or breastfeeding * Unable to take oral medication * Certain significant past medical history, such recent stroke, pulmonary embolism, myocardial infarction, congestive heart failure, uncontrolled hypertension, or certain arrhythmias

Design outcomes

Primary

MeasureTime frameDescription
Number of participants who experience adverse events classified per CTCAEv5From start of treatment until 30 days after the last dose of tazemetostat, for a maximum of approximately 13 monthsAdverse reactions will be graded as per National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 5.

Secondary

MeasureTime frameDescription
Number of patients who experience cytokine release syndrome (CRS) by ASTCT Consensus Grading system during therapyFrom start of treatment until Day 21 days following CAR T cell infusionPatients will undergo screening for CRS per American Society for Transplantation and Cellular Therapy (ASTCT) guidelines
Number of patients who experience immune effector cell neurotoxicity syndrome (ICANS) by ASTCT Consensus Grading system during therapyFrom start of treatment until Day 21 days following CAR T cell infusionPatients will undergo screening for ICANS per American Society for Transplantation and Cellular Therapy (ASTCT) guidelines
Overall response rate (ORR) reported as per Lugano response criteriaFrom start of treatment until disease progression or death, for a maximum of approximately 6 yearsOverall response rate will be reported as the number of participants who achieve a complete or partial response per the Lugano response criteria
Mean Progression-Free Survival (PFS)From start of treatment until disease progression or death, for a maximum of approximately 6 yearsPFS is defined as the duration of time from start of treatment to time of documentation of progression or death from any cause.
Mean Overall Survival (OS)From start of treatment until death, for a maximum of approximately 6 yearsOS is defined as the duration of time from start of treatment to death from any cause.

Countries

United States

Contacts

PRINCIPAL_INVESTIGATORCaitlin K Gribbin, M.D.

Weill Medical College of Cornell University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 18, 2026