A Phase II trial Evaluating Safety and Efficacy of Epcoritamab with Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma

Cancer Categories

Hematologic (Blood Cancers)

Karmanos Trial ID

2023-002

NCT ID

NCT05852717

Age Group

Adult

Scope

National

Phase

Phase II

Principal Investigator

Dipenkumar
Modi, M.D.
Oncology - Hematology, Oncology - Medical View Profile

Objective:

Primary Objective:

Estimate complete remission (CR) rate per the Lugano classification with a combination of epcoritamab and GDP in subjects with relapsed large cell lymphoma.

Secondary Objectives:

Estimate overall response rate (ORR) per the Lugano classification with a combination of epcoritamab and GDP in subjects with relapsed large cell lymphoma.
Estimate duration of response (DOR) with a combination of epcoritamab and GDP in subjects with relapsed large cell lymphoma.
Estimate progression free survival (PFS) with a combination of epcoritamab and GDP in subjects with relapsed large cell lymphoma.
Estimate overall survival (OS) with a combination of epcoritamab and GDP in subjects with relapsed large cell lymphoma.
Determine the safety and tolerability of epcoritamab and GDP in relapsed large cell lymphoma defined by CTCAE 5.0.
Estimate feasibility of stem cell mobilization after combination therapy of epcoritamab with GDP in subjects with relapsed large cell lymphoma.

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Eligibility

Inclusion Criteria:

Written informed consent and HIPAA authorization for release of personal health information prior to registration. NOTE: HIPAA authorization may be included in the informed consent or obtained separately.
Age ≥ 18 years at the time of consent.
ECOG Performance Status of 0-2 within 28 days prior to registration.
Histological confirmed CD20+ relapsed large cell lymphoma according to the 5th edition of the WHO classification of the hematolymphoid tumors and the 2022 international consensus classification of mature lymphoid neoplasms including de-novo and transformed from prior indolent B-cell NHL such as follicular lymphoma, or marginal zone lymphoma (33, 34). NOTE: Subjects with high-grade B-cell lymphoma (HGBCL), NOS subtype, and high-grade B-cell lymphoma with c-MYC, Bcl2 and/or Bcl6 rearrangements (double or triple hit lymphoma) are eligible. Patients with primary mediastinal B-cell lymphoma, and T-cell histiocyte-rich B-cell lymphoma, primary cutaneous diffuse large B-cell lymphoma, leg type, Intravascular large B-cell lymphoma, Epstein-Barr virus-positive diffuse large B-cell lymphoma, NOS, Diffuse large B-cell lymphoma associated with chronic inflammation, and ALK-positive large B-cell lymphoma are eligible. Patients with Burkitt lymphoma or lymphoplasmacytic lymphoma are not eligible.
Positron emission tomography (PET) positive measurable disease with at least 1 node having the longest diameter (LDi) greater than (>) 1.5 centimeter (cm) or 1 extranodal lesion with LDi >1 cm (per the Lugano Criteria 2014).
Have received at least 1 prior line of systemic therapy for the treatment of large cell lymphoma. NOTE: Prior radiation therapy or systemic corticosteroids will not be considered a line of therapy.
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.
Patients must be deemed eligible to proceed with stem cell transplantation (autologous or allogeneic) or CAR T-cell therapy per treating physician discretion. Patients being considered for allogeneic stem cell transplant may be eligible.
Archival tissue obtained within 2 years of signing consent is required if available and will be identified at screening and shipped prior to Cycle 2 Day 1. If archival tissue is not available, fresh tissue from a standard of care biopsy is required. If a subject does not have archival tissue or is not undergoing a standard of care biopsy, they are not eligible for the trial. NOTE: A pre-treatment fresh tissue core or excisional biopsy at screening is preferred which should be considered standard of care.
Demonstrate adequate organ function. All screening labs to be obtained within 21 days prior to registration. *Patients with bone marrow involvement will be eligible to participate in the study but must meet hematologic parameters.
Life expectancy of ≥ 6 months, as determined by the enrolling physician or protocol designee.
Females subjects of childbearing potential must have a negative urine or serum pregnancy test within 24 hours prior to study treatment. If a urine test is done and it is positice ir cannot be confirmed as negative, a serum pregnancy test will be required.
Female subjects of childbearing potential and male subjects must be willing to abstain from penile-vaginal intercourse or to use an effective method(s) of contraception.
As determined by the enrolling physician or protocol designee, ability of the subject to understand and comply with study procedures for the entire length of the study.

Exclusion Criteria:

Previous treatment with gemcitabine, cisplatin, and epcoritamab or other bispecific T-cell engager antibody (BiTE) such aas glofitamab, mosunetuzumab, or odronextamab.
Known active central nervous system or meningeal involvement by large cell lymphoma at time of screening. Patients diagnosed with CNS disease who achieved and maintained CNS CR at the time of relapse are eligible. Lumbar puncture must be done in this case prior to study entry 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).
Contraindication to any drug contained in the combination therapy regimen (GDP).
Known hypersensitivity or allergic reaction to epcoritamab or its' excipients.
Any AE related to the previous large cell lymphoma therapy which has not recovered to Grade ≤ 1 (CTCAE v.5.0) or baseline by C1D1, except alopecia.
Use of any standard or experimental anti-large cell lymphoma therapy (including nonpalliative radiation, chemotherapy, immunotherapy, radio-immunotherapy, or any other anticancer therapy) < 14 days prior to C1D1 (prednisone up to 50 mg or equivalent for 5 days is permitted; palliative radiation is permitted only if on non-target lesions).
Major surgery < 14 days of Cycle 1 Day 1.
Neuropathy Grade ≥ 2 (CTCAE v.5.0).
Patients with a history of other malignancies, except adequately treated non-melanoma skin cancer, non-invasive superficial bladder cancer, curatively treated in-situ cancer of the cervix, DCIS of the breast, localized low grade prostate cancer (up to Gleason score 6), or other solid tumours curatively treated with no evidence of disease for at least 3 years.
Active bacterial, viral, fungal, mycobacterial, parasitic, or other infection (excluding fungal infections of nail beds) requiring systemic treatment within 7 days prior to the first dose of study treatment. Prophylactic antibacterial, antiviral, and antifungal agents are allowed.
Confirmed history or current autoimmune disease or other diseases requiring permanent immunosuppressive therapy. Low-dose (10 mg/day) prednisolone (or equivalent) for rheumatoid arthritis or similar conditions is allowed.
Active HIV infection. NOTE: Testing for HIV antibody is required at the time of screening. Those with positive HIV antibody will require HIV viral load by PCR testing. Patients with detectable viral load will not be eligible for the study. Those with positive antibody but undetectable viral load and CD4 >200 will be eligible.
Testing for hepatitis B (HBV) and hepatitis C virus (HCV) is required at screening. Hepatitis B testing will consist of Hepatitis B surface Antigen (HBsAg), Hepatitis B Core Antibody (HBcAb) and Hepatitis Surface Antibody (HBsAb). Hepatitis C testing will consist of Hepatitis C Antibody (HCAb). Subjects with a history of chronic hepatitis B virus (HBV) infection must have an undetectable HBV viral load on suppressive therapy, if indicated. Subjects with evidence of prior HBV but who are PCR-negative are permitted in the trial but should receive prophylactic antiviral therapy. Subjects with a history of hepatitis C virus (HCV) infection must have been treated. For patients with HCV infection who are currently on treatment, the HCV viral load must be undetectable to be eligible for this trial. Subjects who received treatment for HCV that was intended to eradicate the virus may participate if hepatitis C RNA levels are undetectable.
Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use while the mother is being treated on study).

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