About this trial
This phase II trial tests how well epcoritamab in combination with standard of care (SOC) platinum-based chemotherapy (rituximab, ifosfamide, carboplatin, etoposide \[RICE\], rituximab, cytarabine, dexamethasone, oxaliplatin or carboplatin RDHAP/X\] or gemcitabine and oxaliplatin \[Gem/Ox\]) and autologous hematopoietic cell transplant (HCT) works in treating patients with large B-cell lymphoma (LBCL) that has come back after a period of improvement (relapsed) or that has not responded to previous treatment (refractory). Epcoritamab, a type of bispecific T-cell engager, binds to a protein called CD3, which is found on T cells (a type of white blood cell). It also binds to a protein called CD20, which is found on B cells (another type of white blood cell) and some lymphoma cells. This may help the immune system kill cancer cells. Carboplatin is in a class of medications known as platinum-containing compounds. It works in a way similar to the anticancer drug cisplatin, but may be better tolerated than cisplatin. Carboplatin works by killing, stopping or slowing the growth of cancer cells. Oxaliplatin is in a class of medications called platinum-containing antineoplastic agents. It damages the cell's deoxyribonucleic acid (DNA) and may kill cancer cells. Rituximab is a monoclonal antibody. It binds to a protein called CD20, which is found on B cells and some types of cancer cells. This may help the immune system kill cancer cells. Chemotherapy drugs, such as ifosfamide, etoposide phosphate, cytarabine, and gemcitabine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Dexamethasone is in a class of medications called corticosteroids. It is used to reduce inflammation and lower the body's immune response to help lessen the side effects of chemotherapy drugs. An autologous HCT is a procedure in which blood-forming stem cells (cells from which all blood cells develop) are removed, stored, and later given back to the same person. Giving epcoritamab in combination with SOC platinum-based chemotherapy, such as RICE, RDHAP/X and Gem/Ox, and autologous HCT may kill more cancer cells in patients with relapsed or refractory LBCL.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Participants must have histologically or cytologically confirmed R/R LBCL
Can include diffuse large B-cell lymphoma (DLBCL) (not otherwise specified [NOS] or with concurrent MYC and BCL2 rearrangements), high-grade B-cell lymphoma (HGBCL) (NOS or with MYC and BCL2 or BCL6 rearrangements) and transformed follicular lymphoma (FL) and nodal marginal zone lymphoma (MZL)
Histological confirmed CD20+ relapsed/ refractory large cell lymphoma
Must have had relapsed or refractory disease following standard frontline chemotherapy. Refractory disease is defined as large cell lymphoma not achieving complete remission, progressing, or relapsing within 6 months after first-line chemotherapy based on PET/CT per the Lugano criteria. Relapsed disease is defined as disease that recurs beyond 6 months after completion of initial chemotherapy based on PET/CT per the Lugano criteria
Disqualifiers
Any adverse event (AE) related to the previous large cell lymphoma therapy which has not recovered to grade ≤ 1 (Common Terminology Criteria for Adverse Events [CTCAE] version [v.] 5.0) or baseline by cycle 1 day 1 (C1D1), except alopecia and non-clinically significant laboratory abnormalities
Uncontrolled intercurrent illness (including infection)
Known active central nervous system or meningeal (including leptomeningeal) involvement. Patients diagnosed with central nervous system (CNS) disease who achieved and maintained CNS complete response (CR) at the time of relapse are eligible. Lumbar puncture must be done in this case prior to study entry (within 90 days of enrollment) to demonstrate CNS CR status. Tests to investigate CNS involvement are required otherwise only if clinically indicated (i.e. disease suspected on basis of symptoms or other findings)
Receiving any other investigational treatments
Trial design
Single group
Treatments tested in this trial
Autologous Hematopoietic Stem Cell Transplantation
Procedure/SurgeryUndergo autoHCT
Carboplatin
DrugGiven carboplatin
Cytarabine
DrugGiven cytarabine
Dexamethasone
DrugGiven dexamethasone
Epcoritamab
Biological/VaccineGiven SC
Etoposide Phosphate
DrugGiven etoposide phosphate
Gemcitabine
DrugGiven gemcitabine
Ifosfamide
DrugGiven ifosfamide
Multigated Acquisition Scan
Procedure/SurgeryUndergo MUGA
Oxaliplatin
DrugGiven oxaliplatin
Rituximab
Biological/VaccineGiven rituximab
Treatment groups
Trial outcomes
Primary outcomes
Complete response rate (CRR)
Will be assessed by Lugano 2014. Will be calculated as the number of participants achieving complete response divided by the number of evaluable patients. CRR will be presented alongside the corresponding exact binomial 95% confidence interval.
Secondary outcomes
Incidence of treatment-related adverse events (AEs)
The proportion of participants experiencing AEs, serious AEs, and treatment delays will be summarized. All AEs will be listed, documenting the course, outcome, severity, and relationship to the study treatment. Incidence rates of AEs and the proportion of participants prematurely withdrawn from the study due to AEs will be reported. Will be classified by severity, and graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events version 5.0.
Progression-free survival
Will be summarized using the Kaplan-Meier method. Summary statistics will include median and event-free probabilities at pre-specified time points, along with their associated two-sided 95% confidence intervals (CIs).
Objective response
Will be assessed by Lugano 2014. Will be presented using descriptive statistics. Tabulations will be produced for appropriate disposition, demographic, baseline, and efficacy parameters. For continuous variables, the number of participants, mean, median, standard deviation, minimum, and maximum values will be presented. For categorical variables, numbers and percentages of participants within each category (with a category for missing data) will be presented along with binomial exact 95% CIs, unless stated otherwise.
Overall survival
Will be summarized using the Kaplan-Meier method. Summary statistics will include median and event-free probabilities at pre-specified time points, along with their associated two-sided 95% confidence intervals.
Sponsors and contacts
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University of California, Davis
Lead sponsor
National Cancer Institute (NCI)
Collaborator