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Odronextamab

Phase 3

B-cell Non-Hodgkin Lymphoma (B-NHL) | Monoclonal antibody | Oncology |Regeneron Pharmaceuticals, Inc.|Trials Updated: Oct 7, 2026

Odronextamab development status

Highest phase Phase 3
Registered trials 14 across 4 sponsors since Jan 2016

Odronextamab target and mechanism

Molecular targetMS4A1, CD3E, CD3G, CD3D
Target classBinding Agent
ModalityMonoclonal antibody

Also known as Odronextamab multiple dose levels, REGN1979, Anti-CD20 x Anti-CD3 Bispecific Monoclonal Antibody REGN1979, WHO 11035, R1979, Ordspono

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMCBiomarker
Total Trials10
Total Enrollment4,139

FDA Designations

No designations recorded

Odronextamab clinical trials

Odronextamab · 10 trials · 22 indications

Phase 3 5Phase 2 3Phase 1 2
NCT06230224A Trial to Learn How Effective and Safe Odronextamab is Compared to Standard of Care for Adult Participants With Previously Treated Aggressive B-cell Non-Hodgkin LymphomaB-Cell Non-Hodgkin Lymphoma (B-NHL)
ACTIVE NOT_RECRUITING216 Analytics
NCT06149286A Trial to Find Out if Odronextamab Combined With Lenalidomide is Safe and Works Better Than Rituximab Combined With Lenalidomide in Adult Participants With Follicular Lymphoma and Marginal Zone LymphomaRelapsed/Refractory Follicular Lymphoma
RECRUITING580 Analytics
NCT06091865A Study to Compare How Well Odronextamab Combined With Chemotherapy Works and How Safe it is Against Rituximab Combined With Chemotherapy, in Adult Patients With Previously Untreated Diffuse Large B-cell LymphomaDiffuse Large B-cell Lymphoma (DLBCL)
RECRUITING904 Analytics
NCT06091254A Trial to Learn if Odronextamab is Safe and Well-Tolerated and How Well it Works Compared to Rituximab Combined With Different Types of Chemotherapy for Adult Participants With Previously Untreated Follicular LymphomaFollicular Lymphoma (FL)
RECRUITING822 Analytics
NCT06097364A Trial to Learn if Odronextamab Combined With Chemotherapy is Safe and Well-Tolerated and How Well it Works Compared to Rituximab Combined With Chemotherapy for Adult Participants With Follicular LymphomaFollicular Lymphoma (FL)
ACTIVE NOT_RECRUITING733 Analytics
PHASE3ACTIVE NOT_RECRUITING
A Trial to Learn How Effective and Safe Odronextamab is Compared to Standard of Care for Adult Participants With Previously Treated Aggressive B-cell Non-Hodgkin Lymphoma
B-Cell Non-Hodgkin Lymphoma (B-NHL)Unlock trial analytics
PHASE3RECRUITING
A Trial to Find Out if Odronextamab Combined With Lenalidomide is Safe and Works Better Than Rituximab Combined With Lenalidomide in Adult Participants With Follicular Lymphoma and Marginal Zone Lymphoma
Relapsed/Refractory Follicular LymphomaUnlock trial analytics
PHASE3RECRUITING
A Study to Compare How Well Odronextamab Combined With Chemotherapy Works and How Safe it is Against Rituximab Combined With Chemotherapy, in Adult Patients With Previously Untreated Diffuse Large B-cell Lymphoma
Diffuse Large B-cell Lymphoma (DLBCL)Unlock trial analytics
PHASE3RECRUITING
A Trial to Learn if Odronextamab is Safe and Well-Tolerated and How Well it Works Compared to Rituximab Combined With Different Types of Chemotherapy for Adult Participants With Previously Untreated Follicular Lymphoma
Follicular Lymphoma (FL)Unlock trial analytics
PHASE3ACTIVE NOT_RECRUITING
A Trial to Learn if Odronextamab Combined With Chemotherapy is Safe and Well-Tolerated and How Well it Works Compared to Rituximab Combined With Chemotherapy for Adult Participants With Follicular Lymphoma
Follicular Lymphoma (FL)Unlock trial analytics

Study Endpoints

Primary Endpoints

Event-free survival (EFS) as assessed by independent central review (ICR)
Assessed up to 3 years
Incidence of Dose Limiting Toxicities (DLTs) for odronextamab in combination with lenalidomide
Up to 35 days

Part 1

Incidence of Treatment Emergent Adverse Events (TEAEs) for odronextamab in combination with lenalidomide
Up to 2 years

Part 1

Severity of TEAEs for odronextamab in combination with lenalidomide
Up to 2 years

Part 1

Progression-Free Survival (PFS) as assessed by Independent Central Review (ICR)
Up to 5 years

Part 2

Incidence of Dose Limiting Toxicities (DLTs)
Up to 35 days

Part 1A

Incidence of Treatment Emergent Adverse Events (TEAEs)
Up to 2 years

Part 1

Severity of TEAEs
Up to 2 years

Part 1

Progression Free Survival (PFS), assessed by Independent Central Review (ICR)
Up to 5 years

Part 2

Incidence of Dose-Limiting Toxicities (DLTs) for odronextamab
Up to 35 days

Part 1

Incidence of Treatment-Emergent Adverse Events (TEAEs) of odronextamab
Up to 2 years

Part 1

Severity of TEAEs of odronextamab
Up to 2 years

Part 1

Complete Response at 30 months (CR30) as assessed by independent central review
Up to 30 months

Part 2

Incidence of dose limiting toxicities (DLTs) for odronextamab in combination with chemotherapy
Up to 35 days

Part 1, DLT period

Incidence of treatment-emergent adverse events (TEAEs) of odronextamab in combination with chemotherapy
Up to 2 years

Part 1, Treatment period

Severity of TEAEs of odronextamab in combination with chemotherapy
Up to 2 years

Part 1, Treatment period

Complete Response rate at 30 months (CR30) assessed by independent central review (ICR)
Up to 30 months

Part 2

Complete Response Rate (CRR)
Assessed at baseline and every 3 cycles, treatment lasts for 6 cycles, each cycle is 21 days.

CRR is defined as the proportion of patients who accomplish a complete response (CR) as best response (CR rate) following treatment with odronextamab as per the revised Lugano criteria.

Failure to undergo leukapheresis
Up to 5 years

Will include failures due to disease progression or adverse events (AEs) due to odronextamab (Odron), or requirement of other lymphoma-directed therapy for bridging before leukapheresis due to lack of response. Will report the total number and percentage with 95% confidence interval (CI).

Objective Response Rate (ORR), as assessed by independent central review
Up to 52 weeks of study treatment

FL grade 1-3a/MZL

ORR, as assessed by independent central review
Up to 36 weeks of study treatment

DLBCL/MCL/Other B-NHL

Incidence of Dose Limiting Toxicities (DLTs) of REGN5837 in combination with odronextamab
From Cycle 2, Day 1 to Cycle 2, Day 21 (each induction cycle is 21 days)

A DLT is defined as any non-haematologic and haematologic toxicity, as defined in the protocol, unless the event is clearly attributable to the underlying disease or to an extraneous cause (including concomitant medications).

Incidence of Treatment-Emergent Adverse Events (TEAEs) of REGN5837 in combination with odronextamab
Up to approximatively 5 years

Treatment-emergent adverse events (TEAEs) are defined as those AEs that newly occurred or worsened during the on-treatment period and any treatment-related serious adverse events (SAEs) that occurred during the post-treatment period.

Severity of TEAEs of REGN5837 in combination with odronextamab
Up to approximatively 5 years

Treatment-emergent adverse events (TEAEs) are defined as those AEs that newly occurred or worsened during the on-treatment period and any treatment-related serious adverse events (SAEs) that occurred during the post-treatment period.

Incidence of Adverse Events of Special Interest (AESIs) of REGN5837 in combination with odronextamab
Up to approximatively 5 years

An AESI (serious or non-serious) is one of scientific and medical concern specific to the sponsor's product or program, for which ongoing monitoring and rapid communication by the investigator to the sponsor can be appropriate.

Severity of AESIs of REGN5837 in combination with odronextamab
Up to approximatively 5 years

An AESI (serious or non-serious) is one of scientific and medical concern specific to the sponsor's product or program, for which ongoing monitoring and rapid communication by the investigator to the sponsor can be appropriate.

Safety/overall frequency of adverse events (AEs)
Up to 24 months

Part A and B

Safety/dose limiting toxicities (DLTs)
Up to 28 days

Part A and B

Antitumor activity as measured by the objective response rate (ORR)
Through study completion, an average of 24 months

Expansion Cohorts: • Diffuse large B-cell lymphoma (DLBCL) after failure of CAR-T therapy Part A

Secondary Endpoints

Progression free survival (PFS) as assessed by ICR
Assessed up to 3 years
Best overall response (BOR) as assessed by ICR
Assessed up to 6 months
Overall survival (OS)
Assessed up to 3 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
OdronextamabEXPERIMENTALParticipants will receive odronextamab monotherapy.
Standard Of CareACTIVE_COMPARATORParticipants will receive salvage therapy (ifosfamide, carboplatin, etoposide ± rituximab \[ICE ± R\], or dexamethasone, cisplatin, cytarabine ± rituximab \[DHAP ± R\], or gemcitabine, dexamethasone, cisplatin ± rituximab \[GDP ± R\]) and continue with autologous stem cell transplant (ASCT) following a complete response (CR)/partial response (PR).
Odronextamab+LenalidomideEXPERIMENTALIn part 1 (safety run-in), participants with R/R indolent lymphoma (FL and MZL), will receive odronextamab in combination with lenalidomide. In part 2, 1:1 randomized participants with R/R FL and MZL, will receive odronextamab in combination with lenalidomide.
Rituximab+LenalidomideEXPERIMENTALIn part 2 only, 1:1 randomized participants with R/R FL and ML, will receive rituximab in combination with lenalidomide (R2) followed by lenalidomide monotherapy.
Odronextamab + CHOPEXPERIMENTALPart 1, includes dose escalation (Part 1A), and randomized exploration of 2 regimens of odronextamab -cyclophosphamide, doxorubicin, vincristine, prednisone (Odro-CHOP) dose optimization (Part 1B).
Rituximab + CHOPACTIVE_COMPARATORPart 2 is the randomized controlled portion, participants will receive either Odro-CHOP or R-CHOP.
Rituximab + Investigator's Choice ChemotherapyACTIVE_COMPARATORPart 2 only, participants will be randomized 1:1 to receive rituximab in combination with chemotherapy followed by rituximab maintenance.
Odronextamab + ChemotherapyEXPERIMENTALPart 1 of the study includes ordonextamab dose escalation for participants with previously untreated FL and relapsed/refractory FL (Part 1A only) followed by a randomized exploration of 2 regimens of odronextamab (Odro) and cyclophosphamide, doxorubicin, vincristine, prednisone (CHOP) with the objective of dose optimization (Part 1B) in previously untreated patients with FL.
Rituximab + ChemotherapyACTIVE_COMPARATORIn Part 2 only, participants will be randomized 1:1:1 to receive rituximab (R) with chemotherapy (CHOP), followed by rituximab monotherapy maintenance.
Odronextamab + Chemotherapy + MaintenanceEXPERIMENTALIn Part 2, participants will be randomized 1:1:1 to receive odronextamab with chemotherapy \[CHOP, or cyclophosphamide, vincristine, and prednisone (CVP)\], followed by odronextamab monotherapy maintenance.
Odronextamab + Chemotherapy + No maintenanceEXPERIMENTALIn Part 2, participants will be randomized 1:1:1 to receive odronextamab with chemotherapy (CHOP, or CVP) without maintenance.
Treatment (odronextamab)EXPERIMENTALPatients receive odronextamab IV based on the following schedules: * Step-up dosing during cycle 1: 0.2 mg on C1D1, 0.5 mg on C1D2, 2 mg on C1D8 and C1D9, respectively, and 10 mg on C1D15 and C1D16, respectively (0.7/4/20 regimen). * Dosing during cycles 2-4: Odron will be given at 160 mg weekly. * Once every other week at 320 mg of remaining cycles. Please see the Detailed Description for additional information.
FLEXPERIMENTALFollicular lymphoma grade 1-3a cohort
DLBCLEXPERIMENTALDiffuse large B-cell lymphoma cohort
MCLEXPERIMENTALMantle Cell Lymphoma cohort
MZLEXPERIMENTALMarginal Zone Lymphoma cohort
Other B-NHLEXPERIMENTALOther B-cell non-Hodgkin lymphoma cohort (excluding FL Grade 1-3a, DLBCL, MCL, MZL, Waldenström macroglobulinemia \[WM\]); Patients with a current diagnosis of mixed histology of B-NHL with an aggressive component (such as concurrent FL and DLBCL) will be allowed
Dose escalation portionEXPERIMENTAL -
Dose expansion portionEXPERIMENTAL -
Part AEXPERIMENTALDLBCL post CAR-T
1N Part BEXPERIMENTALFL
2N Part BEXPERIMENTALDLBCL

Interventions

NameTypeDescription
OdronextamabDRUGAdministered by intravenous (IV) infusion
IfosfamideDRUGAdministered by IV infusion, as part of the ICE ± R salvage therapy
CarboplatinDRUGAdministered by IV infusion, as part of the ICE ± R salvage therapy
EtoposideDRUGAdministered by IV infusion, as part of the ICE ± R salvage therapy
RituximabDRUGAdministered by IV infusion, as part of the ICE ± R, or DHAP ± R, or GDP ± R salvage therapy.
DexamethasoneDRUGAdministered by IV, or orally (PO) as part of the DHAP ± R, or GDP ± R salvage therapy.
CisplatinDRUGAdministered by IV infusion, as part of the DHAP ± R or GDP +/-R salvage therapy.
CytarabineDRUGAdministered by IV infusion, as part of the DHAP ± R salvage therapy.
GemcitabineDRUGAdministered by IV infusion, as part of the GDP ± R salvage therapy.
LenalidomideDRUGAdministered per the protocol
CyclophosphamideDRUGCyclophosphamide will be administered IV as part of chemotherapy
DoxorubicinDRUGDoxorubicin will be administered IV as part of chemotherapy
VincristineDRUGVincristine will be administered IV as part of chemotherapy
Prednisone/PrednisoloneDRUGPrednisone or prednisolone will be administered orally (PO) as part of chemotherapy
BendamustineDRUGAdministered per the protocol as part of chemotherapy (Rituximab-Bendamustine)
Prednisone/PrenisoloneDRUGAdministered orally (PO)
Biospecimen CollectionPROCEDUREUndergo collection of blood and oral or rectal swab samples
Bone Marrow AspirationPROCEDUREUndergo bone marrow aspiration
Bone Marrow BiopsyPROCEDUREUndergo bone marrow biopsy
Chimeric Antigen Receptor T-Cell TherapyBIOLOGICALUndergo CAR-T cell therapy
Computed TomographyPROCEDUREUndergo PET/CT
LeukapheresisPROCEDUREUndergo leukapheresis
Lumbar PuncturePROCEDUREUndergo lumbar puncture
Positron Emission TomographyPROCEDUREUndergo PET/CT
Questionnaire AdministrationOTHERAncillary studies
Biopsy ProcedurePROCEDUREUndergo tissue biopsy
REGN5837DRUGAdministered per the protocol
Odronextamab multiple dose levelsDRUGAdministered by intravenous (IV) infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites81

Key Inclusion Criteria: 1. Histologically proven aggressive B-NHL, as described in the protocol. Availability of tumor tissue for submission to central laboratory is required for study enrollment. Archival tumor tissue for histological assessment prior to enrollment is allowed 2. Have primary refra...

Countries:ArgentinaAustraliaBrazilChileColombiaHungaryMalaysiaRomaniaSingaporeSouth KoreaSpainTaiwanThailandTurkey (Türkiye)United StatesAustriaBelgiumCzechiaFranceGermanyIsraelItalyPolandUnited KingdomIrelandCanadaSwitzerlandChinaJapanNetherlands
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Recent Changes (Last 90 Days)

LOWOct 7, 2026NCT06091865lastUpdatePostDate: changed
LOWOct 7, 2026NCT06149286lastUpdatePostDate: changed
LOWOct 7, 2026NCT06091865lastUpdatePostDate: changed
LOWOct 7, 2026NCT06149286lastUpdatePostDate: changed
LOWOct 6, 2026NCT06091254lastUpdatePostDate: changed
LOWOct 6, 2026NCT06091254lastUpdatePostDate: changed
LOWSep 25, 2026NCT06091865lastUpdatePostDate: changed
LOWSep 25, 2026NCT06091865lastUpdatePostDate: changed
LOWSep 15, 2026NCT06091865lastUpdatePostDate: changed
LOWSep 15, 2026NCT06091865lastUpdatePostDate: changed
LOWSep 15, 2026NCT06091865lastUpdatePostDate: changed
LOWSep 11, 2026NCT06091254lastUpdatePostDate: changed
LOWSep 11, 2026NCT06091254lastUpdatePostDate: changed
LOWAug 20, 2026NCT06091865lastUpdatePostDate: changed
LOWAug 20, 2026NCT06091865lastUpdatePostDate: changed
MEDIUMAug 14, 2026NCT06149286Enrollment: 470 → 580
MEDIUMAug 14, 2026NCT06149286Enrollment: 470 → 580
LOWAug 11, 2026NCT06091254lastUpdatePostDate: changed
LOWAug 11, 2026NCT06091254lastUpdatePostDate: changed
LOWAug 11, 2026NCT06091254lastUpdatePostDate: changed

Frequently asked questions about Odronextamab

What is Odronextamab used for?

Odronextamab is an investigational monoclonal antibody being studied for B-cell non-Hodgkin lymphoma, including diffuse large B-cell lymphoma, follicular lymphoma, marginal zone lymphoma, and other aggressive and indolent B-cell lymphomas. It is in Phase 3 development and is not yet approved for commercial use.

What does Odronextamab target?

Odronextamab targets MS4A1, also known as CD20, on B cells and the CD3E, CD3G, and CD3D subunits of the T-cell receptor complex. This bispecific binding engages T cells to attack malignant B cells. It is classified as a binding agent.

Who makes Odronextamab?

Odronextamab is developed by Regeneron Pharmaceuticals, Inc., which trades on the Nasdaq under the ticker REGN. Regeneron is running the clinical development program across multiple lymphoma indications.

What phase is Odronextamab in?

Odronextamab is in Phase 3 clinical development. It is investigational and has not been approved by the FDA. The program includes three active trials, with one completed trial, and total enrollment across studies of approximately 1,590 participants.

What clinical trials is Odronextamab in?

Odronextamab is being studied in NCT06230224, a Phase 3 trial in aggressive B-cell non-Hodgkin lymphoma, and NCT06149286, a Phase 3 trial combining it with lenalidomide in follicular and marginal zone lymphoma. Earlier-phase studies include NCT07128641 in low tumor volume follicular lymphoma and NCT06784726 in relapsed or refractory large B-cell lymphomas before CAR-T.

Is Odronextamab the same as Odronextamab multiple dose levels?

Yes. Odronextamab multiple dose levels refers to the same investigational monoclonal antibody, Odronextamab, developed by Regeneron Pharmaceuticals. The phrase describes the dose-ranging evaluation of the drug across clinical trials rather than a separate product.