Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma

5. 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).

6. 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.

10. 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.

11. Life expectancy of ≥ 6 months, as determined by the enrolling physician or protocol designee.

12. 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.

13. 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.

14. 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.

1. Previous treatment with gemcitabine, cisplatin, and epcoritamab or other bispecific T-cell engager antibody (BsAB) such as glofitamab, mosunetuzumab, or odronextamab.

2. 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).

3. Contraindication to any drug contained in the combination therapy regimen (GDP).

4. Known hypersensitivity or allergic reaction to epcoritamab or its' excipients.

5. 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. NOTE: Prednisone up to 50 mg or equivalent for 5 days is permitted; palliative radiation is permitted only if on non-target lesions).

6. Major surgery \< 14 days of Cycle 1 Day 1.

7. Neuropathy Grade ≥ 2 (CTCAE v.5.0).

8. 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.

9. 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.

10. 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.

11. 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.

12. Pregnant or breastfeeding (NOTE: breast milk cannot be stored for future use while the mother is being treated on study).

13. Any life-threatening illness, medical condition, or organ system dysfunction which, in the Investigator's opinion, could compromise the subject's safety, or being compliant with the study procedures.

Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma

What this study is about

Safety and Efficacy of Epcoritamab With Gemcitabine, Dexamethasone, and Cisplatin (GDP) Salvage Chemotherapy in Relapsed Refractory Large B-cell Lymphoma

What this study is about