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No longer recruiting (closed or complete)Last updated: 8 July 2025

OLYMPIA-3: This study is evaluating a drug called Odronextamab when given in combination with chemotherapy in people with Diffuse Large B-Cell LymphomaA Phase 3, Open Label, Randomized Study Comparing the Efficacy and Safety of Odronextamab (REGN1979), an Anti-CD20 × Anti-CD3 Bispecific Antibody, in Combination With CHOP (O-CHOP) Versus Rituximab in Combination With CHOP (R-CHOP) in Previously Untreated Participants With Diffuse Large B-cell Lymphoma (DLBCL)

Trial purpose

Medical clipboardCancer treatment

Tumor type

Blood Cancers Haematological

Age

People18+

Trial acronym

OLYMPIA-3

Clinical summary

Summary

This study is recruiting people with Diffuse Large B-Cell Lymphoma (DLBCL) who have not been treated before ("previously untreated"), have not responded to treatment ("refractory") or whose lymphoma has come back after treatment ("relapsed").

The study will be made up of Part 1a, Part 1b, and Part 2. 

The aim of Part 1a (dose escalation) and Part 1b (dose optimisation) is to see how safe and tolerable Odronextamab is in combination with CHOP chemotherapy, and to determine the dose and schedule of Odronextamab to be combined with CHOP chemotherapy in Part 2 of the study. 

The aim of Part 2 is to see how effective the combination of Odronextamab with CHOP chemotherapy is in comparison with the combination of Rituximab targeted therapy and CHOP chemotherapy, which is the current standard of care treatment approved for Non-Hodgkin's lymphoma.

 

Conditions

This trial is treating people with Diffuse Large B-cell Lymphoma that is either previously untreated, relapsed or refractory

Eligibility

Inclusion

  1. Previously untreated participants for lymphoma with documented cluster of differentiation 20+ (CD20+) DLBCL, as described in the protocol OR relapsed or refractory DLBCL (Part 1A only)
  2. Measurable disease with at least one nodal lesion or at least one extranodal lesion, as described in the protocol
  3. Eastern Cooperative Oncology Group (ECOG) performance status ≤2
  4. Life expectancy ≥ 12 months
  5. International Prognostic Index (IPI) of 3 to 5 (part 1 only) and ≥2 (part 2) for untreated DLBCL only;
  6. Adequate hematologic and organ function, as defined in the protocol.

Exclusion

  1. Primary central nervous system (CNS) lymphoma or known involvement by non-primary CNS NHL and history or current relevant CNS pathology
  2. Another active malignancy, significant active disease or medical condition, as described in the protocol
  3. Peripheral neuropathy Grade ≥3
  4. Treatment with any systemic anti-lymphoma therapy
  5. Any investigational therapy within 28 days or 5 half-lives of the drug, whichever is shorter, prior to the start of study treatment
  6. Recent major surgery, prior organ transplantation, or standard radiotherapy, as described in the protocol
  7. Allergy/hypersensitivity to study drugs, as described in the protocol
  8. Infections such as any active infection (bacterial, viral, fungal, mycobacterial, parasitic or other), active Coronavirus disease (COVID-19) infection, uncontrolled infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV), Cytomegalovirus (CMV) infection, as described in the protocol.

Note: Other protocol-defined Inclusion/ Exclusion criteria apply

Inclusion

  • You have had treatment, but your cancer has come back (relapsed or recurrent).
  • You have been diagnosed with cancer, but have not received any treatment.
  • You have had treatment but your cancer has gotten worse or has not responded to the treatment you have been given.

Exclusion

  • You have been diagnosed with a prior or secondary type of cancer.
  • You have certain types of non-cancer medical conditions.
  • You have had certain treatments, surgical procedures or drugs.
  • You are currently being treated on a clinical trial.
Message

Clinical trials have complex eligibility criteria, and other criteria may apply for this trial. Ask your doctor about whether this trial could be right for you.

Participating hospitals

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More information

Trial Identifiers

Information on this page is partially produced from ClinicalTrials.gov *. View further details about this trial on the registry via the links below:

Trial sponsor

Regeneron Pharmaceuticals

Scientific Title

A Phase 3, Open Label, Randomized Study Comparing the Efficacy and Safety of Odronextamab (REGN1979), an Anti-CD20 × Anti-CD3 Bispecific Antibody, in Combination With CHOP (O-CHOP) Versus Rituximab in Combination With CHOP (R-CHOP) in Previously Untreated Participants With Diffuse Large B-cell Lymphoma (DLBCL)

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