Epcoritamab treatment for patients with large B-cell lymphoma after CAR T-cell therapy

Is this trial a fit for you?

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This Phase II open-label study evaluates the effectiveness of Epcor-only (Epcoritamab alone) versus Epcor-R2 (Epcoritamab combined with lenalidomide and rituximab) as consolidation therapy for patients with relapsed/refractory large B-cell lymphoma who are minimal residual disease (MRD) positive after anti-CD19 CAR T-cell therapy. Eligible patients will be randomized to receive one of the two treatment arms for six cycles, with primary outcomes measured by complete metabolic response at 12 months post-infusion. The study includes interim assessments and follow-up evaluations to monitor patient responses and safety. The goal is to improve outcomes for patients at high risk of disease progression.

Why it matters

Who can join: the full rules

Inclusion Criteria

1. Age ≥ 16 years old at the time of signing the patient information and consent form (PICF)
2. Eastern Cooperative Oncology Group (ECOG) performance status of 0-2
3. A diagnosis of relapsed/refractory large B-cell lymphoma
4. Received Therapeutic Good Administration (TGA) approved anti-CD19 CAR T-cell therapy as the most recent large B-cell lymphoma treatment.
5. Partial metabolic response (PMR) or complete metabolic response (CMR) as per the Lugano criteria on the most recent PET/CT performed at any point between Day +25 and Day +100 post CAR T-cell infusion, when compared with the most recent PET/CT prior to CAR T-cell infusion.
6. MRD positive by a ctDNA assay on a blood sample taken at any point between Day +25 and Day +100 post CAR T-cell infusion.
7. Adequate haematological function documented within 7 days prior to randomisation
8. Adequate cardiac function.
9. Adequate renal function, documented within 7 days prior to randomisation
10. Adequate hepatic function documented within 7 days prior to randomisation
11. Complete resolution of cytokine release syndrome (CRS), macrophage-activation syndrome (MAS)/haemophagocytic lymphohistiocytosis (HLH) or immune effector cell-associated neurotoxicity syndrome (ICANS) related to prior CAR T-cell therapy.
12. Female patients of childbearing potential (FCBP) must be willing to follow the contraceptive method/procedure as outline in the PICF
13. Sexually active males must agree to use a condom during sexual contact with a pregnant female or a FCBP for the course of the study through to 4 months after the last dose of epcoritamab, even if he has undergone a successful vasectomy
14. Women must agree not to donate eggs (ova, oocytes) for the purposes of assisted reproduction. Men must also not donate sperm during the trial and for 4 months after receiving the last dose of epcoritamab
15. The patient understands the purpose of the trial and procedures required for the trial which includes compliance with the protocol requirements and restrictions listed in the PICF and in this protocol

Exclusion Criteria

1. A history of Grade 4 CRS or ICANS related to prior CAR T-cell therapy
2. Patients whose lymphoma is known to be CD20 negative on the most recent biopsy prior to CAR T-cell therapy
3. Ongoing active bacterial, viral, fungal, mycobacterial, parasitic, or other infection requiring systemic treatment
4. Progression or relapse within 3 months after a regimen containing a bispecific antibody targeting CD3 and CD20
5. A diagnosis of primary central nervous system (CNS) lymphoma
6. Active secondary CNS involvement of lymphoma at time of screening
7. A known history or current autoimmune disease or other diseases resulting in permanent immunosuppression
8. Known cognitive impairment would place the patient at increased risk of complications from ICANS
9. A known history of hepatitis B serology consistent with acute or chronic infection
10. A known history of hepatitis C serology consistent with acute or chronic infection
11. A known history of testing positive for human immunodeficiency virus (HIV)
12. Any comorbidity conferring a life expectancy of \< 5 years (e.g., second malignancy) or that in the opinion of the site investigator may significantly impact the ability to complete the trial therapy and follow-up or affect the interpretation of results
13. Exposed to live or live attenuated vaccine within 4 weeks prior to signing the PICF.
14. Women who are pregnant or lactating
15. Known hypersensitivity to epcoritamab, lenalidomide, rituximab, tocilizumab or their excipients
16. Presence of any psychological, social or geographical or other condition for which participation would not be in the best interest of the patient

Where it's running

• Westmead Hospital
  Westmead, New South Wales, Australia Recruiting
• Alfred Hospital
  Melbourne, Victoria, Australia Recruiting
• Peter MacCallum Cancer Centre
  Melbourne, Victoria, Australia Recruiting
• Royal Prince Alfred Hospital
  Camperdown, New South Wales, Australia Not yet recruiting
• Royal Brisbane and Women's Hospital
  Herston, Queensland, Australia Not yet recruiting
• Fiona Stanley Hospital
  Murdoch, Western Australia, Australia Not yet recruiting

Study contacts

• Principal investigator: Michael Dickinson, MBBS, D Med Sc, FRACP, FRCPA — Peter MacCallum Cancer Centre, Australia

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Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

1. Review the eligibility criteria above with your treating physician.
2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.