Safety and Efficacy Trial of Epcoritamab Combinations in Subjects With B-cell Non-Hodgkin Lymphoma (B-NHL) (EPCORE™ NHL-2)
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ClinicalTrials.gov Identifier: NCT04663347 |
Recruitment Status :
Recruiting
First Posted : December 11, 2020
Last Update Posted : August 8, 2023
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Condition or disease | Intervention/treatment | Phase |
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Diffuse Large B-Cell Lymphoma Follicular Lymphoma | Drug: rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone Drug: rituximab and lenalidomide Drug: rituximab and bendamustine Drug: rituximab, cytarabine, dexamethasone, and oxaliplatin/carboplatin Drug: gemcitabine and oxaliplatin Biological: Epcoritamab Drug: rituximab, cyclophosphamide, reduced dose of doxorubicin, vincristine, and prednisone Drug: Lenalidomide Drug: rituximab, ifosfamide, carboplatin, and etoposide phosphate | Phase 1 Phase 2 |
Expanded Access : An investigational treatment associated with this study has been approved for sale to the public. More info ...
All participants in the trial will receive epcoritamab, as monotherapy or in combination. The following regimens will be investigated:
- Arm 1: epcoritamab + rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone (R-CHOP) in participants with previously untreated diffuse large B-cell lymphoma (DLBCL)
- Arm 2: epcoritamab + rituximab and lenalidomide (R2) in participants with relapsed/refractory (R/R) follicular lymphoma (FL)
- Arm 3: epcoritamab + rituximab and bendamustine (BR) in participants with previously untreated FL
- Arm 4: epcoritamab + rituximab, cytarabine, dexamethasone, and oxaliplatin/ carboplatin (R-DHAX/C) in participants with R/R DLBCL eligible for autologous stem cell transplant (ASCT)
- Arm 5: epcoritamab + gemcitabine and oxaliplatin (GemOx) in participants with R/R DLBCL ineligible for ASCT due to age, performance status (PS), or comorbidity
- Arm 6: epcoritamab + R2 in participants with previously untreated FL
- Arm 7: epcoritamab maintenance in participants with FL who achieve a complete response (CR) or a partial response (PR) with SOC treatment
- Arm 8: epcoritamab + reduced dose of R-CHOP (R mini-CHOP) in participants with previously untreated DLBCL who are ineligible to receive full-dose anthracycline
- Arm 9: epcoritamab + lenalidomide for second-line treatment in participants with FL who progressed within 24 months of initiation of first-line anti-CD20-containing immunochemotherapy
- Arm 10: epcoritamab + rituximab, ifosfamide, carboplatin, and etoposide phosphate (R-ICE) in participants with R/R DLBCL eligible for ASCT
The trial consists of two parts: Part 1 ('Dose Escalation') and Part 2 ('Dose Expansion'). The primary objective of Part 1 is safety, and it includes Arm 1-5 and Arm 10. Part 2 includes all 10 arms (Arm 1-10) and the primary goal of all arms, except Arm 7, is preliminary efficacy. For Arm 7, the primary goal is safety. Patients in Arm 1-5 and Arm 10 can only participate in either Part 1 or Part 2. Dose Limiting Toxicities (DLTs) will be assessed in Part 1 and for a selected number of patients in Arm 8 during a 28-day period ('safety-run phase'). The arms are conducted in parallel.
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 662 participants |
Allocation: | Non-Randomized |
Intervention Model: | Parallel Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Treatment |
Official Title: | A Phase 1b/2, Open-Label Trial to Assess the Safety and Preliminary Efficacy of Epcoritamab (GEN3013; DuoBody®-CD3xCD20) in Combination With Other Agents in Subjects With B-cell Non-Hodgkin Lymphoma (B-NHL) |
Actual Study Start Date : | November 3, 2020 |
Estimated Primary Completion Date : | March 31, 2029 |
Estimated Study Completion Date : | March 31, 2029 |

Arm | Intervention/treatment |
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Experimental: Arm 1 - Epcoritamab + R-CHOP
In participants with previously untreated DLBCL.
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Drug: rituximab, cyclophosphamide, doxorubicin, vincristine, and prednisone
21-day cycles
Other Name: R-CHOP Biological: Epcoritamab Every week in cycle 1-4, every 3 weeks in cycle 5 and 6, followed by every 4 weeks in cycle 7 for a total of 1 year.
Other Names:
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Experimental: Arm 2 - Epcoritamab + R2
In participants with R/R FL.
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Drug: rituximab and lenalidomide
28-day cycles
Other Name: R2 Biological: Epcoritamab Every week in cycle 1-3, every 2 weeks in cycle 4-9, followed by every 4 weeks for a total of 2 years.
Other Names:
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Experimental: Arm 3 - Epcoritamab + BR
In participants with previously untreated FL.
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Drug: rituximab and bendamustine
28-day cycles
Other Name: BR Biological: Epcoritamab Every week in cycle 1-3, every 2 weeks in cycle 4-9, followed by every 4 weeks for a total of 2 years.
Other Names:
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Experimental: Arm 4 - Epcoritamab + R-DHAX/C
In participants with R/R DLBCL eligible for ASCT.
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Drug: rituximab, cytarabine, dexamethasone, and oxaliplatin/carboplatin
21-day cycles
Other Name: R-DHAX/C Biological: Epcoritamab Every week in cycle 1-4, every 2 weeks in cycle 5-9 followed by every 4 weeks until disease progression or unacceptable toxicity.
Other Names:
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Experimental: Arm 5 - Epcoritamab + GemOx
In participants with R/R DLBCL ineligible ASCT.
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Drug: gemcitabine and oxaliplatin
28-day cycles
Other Name: GemOx Biological: Epcoritamab Every week in cycle 1-4, every 2 weeks in cycle 5-9 followed by every 4 weeks until disease progression or unacceptable toxicity.
Other Names:
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Experimental: Arm 6 - Epcoritamab + R2
In participants with previously untreated FL.
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Drug: rituximab and lenalidomide
28-day cycles
Other Name: R2 Biological: Epcoritamab Every week in cycle 1 and 2, followed by every 4 weeks for a total of 2 years.
Other Names:
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Experimental: Arm 7 - Epcoritamab maintenance
In participants with FL who achieved a CR or PR after receiving SOC treatment in 1L or 2L.
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Biological: Epcoritamab
Every week in cycle 1 and then every 8 weeks for a total of 2 years.
Other Names:
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Experimental: Arm 8 - Epcoritamab + R mini-CHOP
In participants with previously untreated DLBCL who are ineligible to receive full-dose anthracycline.
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Drug: rituximab, cyclophosphamide, reduced dose of doxorubicin, vincristine, and prednisone
21-day cycles
Other Name: R mini-CHOP Biological: Epcoritamab Every week in cycles 1 and 2, then every 3 weeks in cycles 3 to 6 and then every 4 weeks for cycles 7 and 8.
Other Names:
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Experimental: Arm 9 - Epcoritamab + Lenalidomide
In participants with FL who progressed within 24 months of initiation of first-line anti-CD20-containing immunochemotherapy.
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Drug: Lenalidomide
28-day cycles Biological: Epcoritamab Every week in cycle 1-3 and then every 4 weeks for a total of 2 years.
Other Names:
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Experimental: Arm 10 - Epcoritamab + R-ICE
In participants with R/R DLBCL eligible for ASCT.
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Drug: rituximab, ifosfamide, carboplatin, and etoposide phosphate
21-day cycles
Other Name: R-ICE Biological: Epcoritamab Every week in cycle 1-4, every 2 weeks in cycle 5-9 followed by every 4 weeks until transplant or disease progression.
Other Names:
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- Part 1: Number of Participants With Dose limiting Toxicities (DLTs) [ Time Frame: During the first cycle (Cycle length= 28 days) in each cohort ]DLT events are defined as clinically significant adverse events (AEs) or abnormal laboratory values assessed as unrelated to disease progression, underlying disease, intercurrent illness, or concomitant medications as assessed per Common Terminology Criteria for Adverse Events (NCI-CTCAE) criteria version 5.0.
- Part 1 and Part 2 (Arm 7): Number of Participants With Adverse Events (AEs) [ Time Frame: From first dose of trial medication to the maximum of 60 days after last dose of epcoritamab or initiation of subsequent anti-lymphoma therapy. ]An AE is any untoward medical occurrence in a participant or clinical investigation participant administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign. (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal (investigational) product, whether or not related to the medicinal (investigational) product.
- Part 2 (Except Arm 7): Overall Response Rate (ORR) [ Time Frame: Up to 3 years ]ORR is defined as the percentage of participants achieving complete response (CR) or partial response (PR) based on Lugano criteria.
- Part 1 and 2: Clearance (CL) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Volume of Distribution (Vd) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Area Under the Concentration-Time Curve (AUC) from Time Zero to Last Quantifiable Dose (AUC0-last) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Area Under the Concentration-Time Curve (AUC) from Time Zero to Infinity (AUC0-inf) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Maximum (Peak) Plasma Concentration (Cmax) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Time to Reach Cmax (Tmax) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Terminal Elimination Half-Life (t 1/2) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Plasma Trough (Pre-dose) Concentrations (Ctrough) of Epcoritamab [ Time Frame: Predose and postdose at multiple timepoints until treatment discontinuation (up to 3 years) ]
- Part 1 and 2: Number of Immune Cell Populations [ Time Frame: Up to 2 years ]Immune cell populations in peripheral blood and tumor biopsies will be assessed.
- Part 1 and 2: Percentage of Immune Cell Populations [ Time Frame: Up to 2 years ]Immune cell populations in peripheral blood and tumor biopsies will be assessed.
- Part 1 and 2: Change From Baseline in Cytokine Levels up to Cycle 3 [ Time Frame: Up to Cycle 3 (cycle length = 21 days for Arms 1, 4, 8 and 10; cycle length = 28 days for Arms 2, 3, 5, 6 and 9; cycle length = 28 days (Cycle 1) and 56 days (Cycles 2, 3) for Arm 7) ]Change in cytokine levels in peripheral blood samples will be assessed.
- Part 1 and 2: Change From Baseline in Circulating Tumor Deoxyribonucleic Acid (DNA) Level up to End of Treatment (up to 2 Years) [ Time Frame: Up to 2 years ]Change in circulating tumor DNA levels will be assessed.
- Part 1 and 2: Number of Participants With Anti-Drug Antibodies (ADAs) to Epcoritamab [ Time Frame: Up to 3 years ]
- Part 1: ORR [ Time Frame: Up to 3 years ]ORR is defined as the percentage of participants achieving CR or PR based on Lugano criteria.
- Part 1 and 2: Duration of Response (DOR) [ Time Frame: Up to 3 years ]DOR: the time from the first documentation of objective tumor response (CR or PR) to the date of first PD or death based on Lugano criteria.
- Part 1 and 2: Time to Response (TTR) [ Time Frame: Up to 3 years ]TTR is defined as the time from Day 1 of Cycle 1 to first documentation of objective tumor response (CR or PR).
- Part 1 and 2: Progression Free Survival (PFS) [ Time Frame: Up to 3 years ]PFS is defined as the time from Day 1 of Cycle 1 to first documented PD or death due to any cause based on Lugano criteria.
- Part 1 and 2: Overall Survival (OS) [ Time Frame: Up to 3 years ]OS is defined as the time from the date of first dose, to the date of death due to any cause.
- Part 1 and 2: Time to Next Anti-lymphoma Therapy (TTNT) [ Time Frame: Up to 3 years ]TTNT is defined as the time from Day 1 of Cycle 1 to first documented administration of subsequent anti-lymphoma therapy.
- Part 1 and 2: Percentage of Participants With Minimal Residual Disease (MRD) Negativity [ Time Frame: Up to 3 years ]It is defined as the percentage of participants with at least 1 MRD negative result.
- Part 1 and 2: Duration of minimal residual disease (MRD) negativity [ Time Frame: Up to 3 years ]
- Part 2 (Arm 7): Percentage of Participants Who Converted From MRD Positivity to MRD Negativity [ Time Frame: Up to 3 years ]
- Part 2 (Except Arm 7): Percentage of Participants with Complete Response (CR) in Arms 1 to 10 [ Time Frame: Up to 3 years ]
- Part 2 (Arm 7): Percentage of Participants With CR [ Time Frame: Week 24, Week 48, and Week 96 ]It is defined as the percentage of participants who remain in complete remission or converting to complete remission after first trial drug administration.
- Part 1 and 2: Time to Complete Response (TTCR) [ Time Frame: Up to 3 years ]TTCR is defined as the time from first trial drug administration to the date of first documented complete response post-treatment.
- Part 1 and 2: Duration of Complete Response (DoCR) [ Time Frame: Up to 3 years ]DoCR is defined as the time from the first documentation of CR to the date of PD or death, whichever occurs first based on Lugano criteria.

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.
Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria
- Measurable disease defined as ≥1 measurable nodal lesion (long axis >1.5 cm and short axis >1.0 cm) or ≥1 measurable extra-nodal lesion (long axis >1.0 cm) on computed tomography (CT) or magnetic resonance imaging (MRI)
- Eastern Cooperative Oncology Group (ECOG) PS score of 0, 1 or 2
- Acceptable organ function at screening
- CD20-positive non-Hodgkin lymphoma (NHL) at most recent representative tumor biopsy
- If of childbearing potential subject must practicing a highly effective method of birth control
- A man who is sexually active with a woman of childbearing potential must agree to use a barrier method of birth control
Arm 1:
- Newly Diagnosed Documented diffuse large B-cell lymphoma (DLBCL)
- DLBCL, NOS
- "double-hit" or "triple-hit" DLBCL
- FL Grade 3B
Arm 2: R/R FL
Arm 3: Newly diagnosed, previously untreated FL grade 1-3A
Arm 4:
- Documented DLBCL and eligible for HDT-ASCT
- DLBCL, NOS
- "double-hit" or "triple-hit" DLBCL
- FL Grade 3B
Arm 5:
- Relapsed or refractory documented DLBCL and ineligible for HDT-ASCT
- DLBCL, NOS
- "double-hit" or "triple-hit" DLBCL
- FL Grade 3B
Arm 6: Newly diagnosed, previously untreated FL grade 1-3A
Arm 7:
- FL Grade 1-3A
- If PR or CR per Lugano criteria following first-line or second-line treatment with SOC regimen, and last dose of SOC within 6 months prior to enrollment.
Arm 8:
- DLBCL, NOS
- T-cell/histiocyte rich DLBCL
- "double-hit" or "triple-hit" DLBCL
- FL Grade 3B
Arm 9:
- R/R FL
- Progressed within 24 months of initiating first-line treatment
Arm 10:
- Documented DLBCL and eligible for HDT-ASCT
- DLBCL, NOS
- "double-hit" or "triple-hit" DLBCL
- FL Grade 3B
Key Exclusion Criteria
- Chemotherapy, radiation therapy, or major surgery within 4 weeks prior to the first dose of epcoritamab
- Any prior treatment with a bispecific antibody targeting CD3 and CD20.
- Treatment with CAR-T therapy within 30 days prior to first dose of epcoritamab
- Clinically significant cardiovascular disease
- Evidence of significant, uncontrolled concomitant diseases that could affect compliance with the protocol or interpretation of results
- CNS lymphoma or known CNS involvement by lymphoma at screening as confirmed by MRI/CT scan of the brain and, if clinically indicated, by lumbar puncture
- Active positive tests for hepatitis B virus or hepatitis C virus indicating acute or chronic infection
- Known history of seropositivity of human immunodeficiency virus (HIV)
- Active tuberculosis or history of completed treatment for active tuberculosis within the past 12 months
- Neuropathy > grade 1
- Receiving immunostimulatory agent
- Prior allogeneic HSCT
- Current seizure disorder requiring anti-epileptic therapy
NOTE: Other protocol defined Inclusion/Exclusion criteria may apply.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04663347
Contact: Genmab A/S Trial Information | +45 70202728 | clinicaltrials@genmab.com |

Responsible Party: | Genmab |
ClinicalTrials.gov Identifier: | NCT04663347 |
Other Study ID Numbers: |
GCT3013-02 2020-000845-15 ( EudraCT Number ) NL74222.056.20 ( Registry Identifier: CCMO ) 283235 ( Other Identifier: IRAS ID; UK Research Summaries Database ) |
First Posted: | December 11, 2020 Key Record Dates |
Last Update Posted: | August 8, 2023 |
Last Verified: | August 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
DuoBody® monoclonal antibodies anti-CD3 anti-CD20 |
Lymphoma Lymphoma, Non-Hodgkin Lymphoma, B-Cell Lymphoma, Large B-Cell, Diffuse Neoplasms by Histologic Type Neoplasms Lymphoproliferative Disorders Lymphatic Diseases Immunoproliferative Disorders Immune System Diseases Cytarabine Dexamethasone Prednisone Cyclophosphamide Bendamustine Hydrochloride |
Ifosfamide Rituximab Carboplatin Gemcitabine Doxorubicin Liposomal doxorubicin Oxaliplatin Etoposide Vincristine Lenalidomide Etoposide phosphate Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents |