Odronextamab with chemo vs rituximab with chemo in untreated DLBCL
Official 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 (ODRO-CHOP) Versus Rituximab in Combination With CHOP (R-CHOP) in Previously Untreated Participants With Diffuse Large B-cell Lymphoma (DLBCL) (OLYMPIA-3)
Run by Regeneron Pharmaceuticals · NCT06091865 · Data updated 2026-11-12
A new treatment approach using odronextamab plus chemotherapy is being tested to see if it works better and is as safe as rituximab plus chemotherapy for adults with newly diagnosed diffuse large B-cell lymphoma.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 904 (estimated) |
| Sponsor | Regeneron Pharmaceuticals Industry-sponsored |
| Drugs / interventions | odronextamab, rituximab, chemotherapy |
| Locations | 195 sites (Scottsdale, Arizona and 194 other locations) |
| Status | Recruiting |
| Started | December 13, 2023 |
| Main results expected | March 30, 2028 |
| Study ends | September 12, 2029 |
| Registry record updated | November 4, 2026 |
| Trial ID | NCT06091865 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with CD20+ DLBCL who have not yet been treated or who are relapsed/refractory and for whom standard therapy is not suitable.
✕Probably not a fit
Patients whose disease does not respond to odronextamab or who experience intolerable safety issues may not benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This Phase 3 study tests odronextamab in combination with standard chemotherapy for adults with previously untreated DLBCL, comparing its effectiveness and safety to the current standard therapy of rituximab plus chemotherapy. The trial has Parts 1A/1B to establish safe dosing, followed by Part 2 to compare effectiveness against the rituximab-based regimen. Eligible participants have CD20+ DLBCL, measurable disease, and adequate organ function, with performance status allowing inclusion. Exclusions include primary CNS lymphoma and other active malignancies.
Why it matters
Potential benefit: If successful, the odronextamab-containing regimen could offer a more effective or tolerable treatment option for untreated DLBCL.
How similar studies have gone: Previous studies in bispecific antibodies for B-cell lymphomas have shown promise, but this exact approach with odronextamab is being tested in this disease setting.
Who can join: the full rules
Show full inclusion / exclusion criteria
Key Inclusion Criteria: 1. Previously untreated participants for lymphoma with documented Cluster of Differentiation 20+ (CD20+) DLBCL, as described in the protocol OR relapsed or refractory DLBCL, for whom next available standard of care therapy is not available or deemed ineligible according to the investigator (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. Key Exclusion Criteria: 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, except for participants with Relapsed/Refractory (R/R) DLBCL and participants with DLBCL transformed from an indolent lymphoma after treatment with systemic anti-lymphoma therapy. 5. Any other therapy or investigational treatment 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
Where it's running
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Mayo Clinic - Arizona
Scottsdale, Arizona, United States Recruiting -
David Geffen School of Medicine at UCLA
Los Angeles, California, United States Recruiting -
University of California Irvine Medical Center
Orange, California, United States Recruiting -
Mayo Clinic Jacksonville
Jacksonville, Florida, United States Recruiting -
Indiana University Melvin and Bren Simon Comprehensive Cancer Center
Indianapolis, Indiana, United States Recruiting -
St Vincent Ascension at Peyton Manning Childrens Hospital
Indianapolis, Indiana, United States Recruiting
Show 44 more locations
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Investigative Clinical Research of Indiana
Noblesville, Indiana, United States Recruiting -
University of Kentucky
Lexington, Kentucky, United States Recruiting -
University of Maryland Greenebaum Comprehensive Cancer Center
Baltimore, Maryland, United States Recruiting -
Beth Israel Deaconess Medical Center
Boston, Massachusetts, United States Recruiting -
Henry Ford Health System
Detroit, Michigan, United States Recruiting -
Cancer and Hematology Centers of Western Michigan
Grand Rapids, Michigan, United States Recruiting -
Mayo Clinic - Rochester
Rochester, Minnesota, United States Recruiting -
Rutgers Cancer Institute of New Jersey
New Brunswick, New Jersey, United States Recruiting -
Stony Brook University Hospital
Stony Brook, New York, United States Recruiting -
Duke University Medical Center
Durham, North Carolina, United States Recruiting -
East Carolina University
Greenville, North Carolina, United States Recruiting -
University Hospitals Cleveland Medical Center
Cleveland, Ohio, United States Recruiting -
Community Cancer Trials of Utah
Ogden, Utah, United States Recruiting -
Liverpool Hospital
Liverpool, New South Wales, Australia Recruiting -
Calvary Mater Newcastle
Waratah, New South Wales, Australia Recruiting -
Icon Cancer Centre - Wesley
Auchenflower, Queensland, Australia Recruiting -
Pindara Private Hospital
Benowa, Queensland, Australia Recruiting -
Epworth Freemasons
East Melbourne, Victoria, Australia Recruiting -
Landeskrankenhaus Hochsteiermark
Leoben, Styria, Austria Recruiting -
Kepler University Hospital
Linz, Upper Austria, Austria Recruiting -
Medical University Graz
Graz, Austria Recruiting -
Medical University of Vienna
Vienna, Austria Recruiting -
Hanusch Krankenhaus
Vienna, Austria Recruiting -
Klinikum Wels-Grieskirchen
Wels, Austria Recruiting -
AZ St.-Elisabeth Herentals vzw
Herentals, Antwerp, Belgium Recruiting -
Centre Hospitalier Regional de Verviers
Verviers, Liege, Belgium Recruiting -
Universitair Ziekenhuis (UZ) Gent/ Ghent University Hospital
Ghent, Oost-Vlaanderen, Belgium Recruiting -
Algemeen Ziekenhuis AZ Delta
Roeselare, West-Vlaanderen, Belgium Recruiting -
Institut Jules Bordet
Brussels, Belgium Recruiting -
Ensino e Terapia de Inovacao Clinica Amo (Etica)
Salvador, Estado de Bahia, Brazil Recruiting -
Hospital Sirio Libanes Brasilia
Brasília, Federal District, Brazil Recruiting -
Instituto Mario Penna de Ensino Pesquisa e Inovacao
Belo Horizonte, Minas Gerais, Brazil Recruiting -
Uopeccan Hospital do Cancer de Cascavel
Cascavel, Paraná, Brazil Recruiting -
Hospital Erasto Gaertner
Curitiba, Paraná, Brazil Recruiting -
Liga Norte Riograndense Contra o Cancer
Natal, Rio Grande do Norte, Brazil Recruiting -
Instituto Tacchini de Pesquisa em Saude
Bento Gonçalves, Rio Grande do Sul, Brazil Recruiting -
Hospital de Clinicas de Porto Alegre
Porto Alegre, Rio Grande do Sul, Brazil Recruiting -
Centro Gaucho Integrado
Porto Alegre, Rio Grande do Sul, Brazil Recruiting -
Centro de Hematologia e Oncologia
Joinville, Santa Catarina, Brazil Recruiting -
Animi Unidade de Tratamento Oncologico Ltda
Lages, Santa Catarina, Brazil Recruiting -
Fundacao Pio XII - Hospital de Amor
Barretos, São Paulo, Brazil Recruiting -
Amaral Carvalho Hospital
Jaú, São Paulo, Brazil Recruiting -
Instituto Nacional de Cancer Jose Alencar Gomes da Silva
Rio de Janeiro, Brazil Recruiting -
Instituto Americas
Rio de Janeiro, Brazil Recruiting
+145 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Clinical Trials Administrator
- Email: clinicaltrials@regeneron.com
- Phone: 844-734-6643
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Polatuzumab vedotin with Zanubrutinib, Rituximab, Cyclophosphamide, Doxorubicin, and Prednisone in untreated DLBCL (MCD/BN2/N1)
This study tests a targeted combination therapy to see if it can treat previously untreated DLBCL with specific molecular subtypes.
-
CRP regimen for older adults with untreated double‑expressor diffuse large B‑cell lymphoma
This trial will try the CRP drug combination (chidamide, rituximab, and polatuzumab vedotin) as first-line treatment for older adults with previously untreated double-expressor DLBCL.
-
Testing a new drug combination for relapsed or refractory follicular and marginal zone lymphoma
This study is testing a new combination of drugs to see if it can help adults with relapsed or hard-to-treat follicular or marginal zone lymphoma feel better compared to standard treatment.
-
Testing a new drug called odronextamab for treating follicular lymphoma
This study is testing a new drug called odronextamab to see if it can safely and effectively treat people with follicular lymphoma who haven't received treatment before.
-
Polatuzumab Vedotin plus Rituximab with Reduced-dose chemo for frail seniors with DLBCL
This trial tests whether a gentler, first-line treatment (Polatuzumab Vedotin with Rituximab and reduced-dose chemo) helps older, frail patients with DLBCL stay disease-free longer.
-
Chidamide, Lenalidomide, and Rituximab as induction therapy for newly diagnosed elderly or unfit double-expressor DLBCL
This trial tests whether the combo of chidamide, lenalidomide, and rituximab can help treat newly diagnosed double-expressor DLBCL in people who are elderly or not fit for standard chemotherapy.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.