New hope for Hard-to-Treat lymphoma: targeted drug combo shows promise in phase 3 trial
NCT ID NCT04182204
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This Phase 3 trial tested whether adding the targeted drug polatuzumab vedotin to standard chemotherapy (R-GEMOX) helps people with relapsed or refractory diffuse large B-cell lymphoma. The study involved 270 participants and compared the combination to chemotherapy alone. The main goals were to check safety and see if the combination improves overall survival.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Polatuzumab vedotin (a targeted antibody-drug conjugate) combined with rituximab, gemcitabine, and oxaliplatin (R-GEMOX chemotherapy)
- What this could lead to
- If successful, this combination could offer a more effective treatment option for people with relapsed or refractory diffuse large B-cell lymphoma, potentially improving survival.
- What could go wrong
- This is a completed Phase 3 trial, but results are not yet widely available. The added drug may increase side effects like nerve damage, and it may not work for everyone.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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270 people
The number who actually took part.
- Started
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Feb 2020
- Finished
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Nov 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Histologically-confirmed diffuse large B-cell lymphoma, not otherwise specified (NOS) or history of transformation of indolent disease to DLBCL * Relapsed disease (disease that has recurred following a response that lasted ≥ 6 months from completion of the last line of therapy) or refractory disease (disease that did not respond to or that progressed during therapy or progressed within 6 months (\< 6 months) of prior therapy) * At least one (≥ 1) line of prior systemic therapy: * Patients may have undergone autologous hematopoietic stem cell transplantation (HSCT) prior to recruitment; In such cases, salvage chemotherapy (e.g., rituximab, dexamethasone, cytarabine, and cisplatin \[R-DHAP\] and rituximab, ifosfamide, carboplatin, and etoposide phosphate \[R-ICE\]) will be counted as one line of therapy and conditioning chemotherapy (e.g., BEAM) followed by consolidative autologous HSCT will be counted as one line of therapy * Patients may have undergone allogeneic HSCT prior to recruitment, so long as they are off all immunosuppressive therapy and have no active GVHD; In such cases, salvage chemotherapy (e.g., R-DHAP and R-ICE) will be counted as one line of therapy and conditioning chemotherapy (e.g., carmustine, etoposide, cytarabine, and melphalan \[BEAM\]) followed by allogeneic HSCT will be counted as a separate line of therapy * Participants may have undergone CAR T-cell therapy prior to recruitment. In such cases, cell collection, conditioning chemotherapy, and infusion will be counted as one line of therapy. * Local therapies (e.g., radiotherapy) will not be considered as lines of treatment * For participants with a history of the transformation of indolent disease to DLBCL, it is preferred that participants have received at least one treatment for the transformed lymphoma. However, if there are cases where the participants have received an anthracycline-containing chemotherapy regimen (such as R-CHOP) for the indolent lymphoma only, then these participants can be considered as eligible. * At least one bi-dimensionally measurable lesion, defined as \> 1.5 cm in its longest dimension as measured by CT or MRI * Eastern Cooperative Oncology Group (ECOG) performance status of 0,1 or 2 * Adequate hematological function * For women of childbearing potential: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraception, and agreement to refrain from donating eggs * For men: agreement to remain abstinent (refrain from heterosexual intercourse) or use contraceptive measures, and agreement to refrain from donating sperm, Exclusion Criteria: * History of severe allergic or anaphylactic reactions to humanized or murine monoclonal antibodies (or recombinant antibody-related fusion proteins) or known sensitivity or allergy to murine products * Contraindication to rituximab, gemcitabine or oxaliplatin * Peripheral neuropathy assessed to be \> Grade 1 according to NCI CTCAE v5.0 * Prior use of polatuzumab vedotin or a gemcitabine plus platinum-based agent combination, recent participation in a clinical trial, and/or treatment with radiotherapy, chemotherapy, immunotherapy, immunosuppressive therapy within 2 weeks * Planned autologous or allogenic stem cell transplantation or CAR T-cell therapy at time of recruitment * Primary or secondary central nervous system (CNS) lymphoma * Richter's transformation or prior CLL * Abnormal laboratory values or health conditions, as assessed by the investigator, any known conditions preventing adherence to protocol or active bacterial, viral, fungal, mycobacterial, parasitic, or other infection * Vaccination with a live vaccine within 4 weeks prior to treatment * Recent major surgery (within 6 weeks before the start of Cycle 1 Day 1) other than for diagnosis * Any other diseases, metabolic dysfunction, physical examination finding, or clinical laboratory finding giving reasonable suspicion of a disease or condition that contraindicates the use of an investigational drug or that may affect the interpretation of the results or render the patient at high risk from treatment complications * Pregnant or breastfeeding, or intending to become pregnant during the study or within 12 months after the last dose of study drug * Women of childbearing potential must have a negative serum pregnancy test result within 7 days prior to initiation of study drug
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Abdurrahman Yurtarslan Onkoloji Training and Research Hospital
Ankara, 06200, Turkey (Türkiye)
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Akdeniz Uni School of Medicine
Antalya, 07059, Turkey (Türkiye)
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All India Institute of Medical Sciences ,Institute Rotary Cancer Hospital
New Delhi, National Capital Territory of Delhi, 110029, India
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Amerikan HAstanesi Onkoloji Birimi Te?vikiye
Ni?anta??, 34365, Turkey (Türkiye)
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Attiko Hospital
Athens, 124 62, Greece
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Az. Osp. Uni Ria Policlinico Tor Vergata
Rome, Lazio, 00133, Italy
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Azienda Ospedaliero-Universitaria Policlinico di Modena Ematologia
Modena, Emilia-Romagna, 41123, Italy
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Cancer Center, Sun Yat-sen University of Medical Sciences
Guangzhou, 510060, China
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Cancer Specialists
Jacksonville, Florida, 32256, United States
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Centre Henri Becquerel
Rouen, 76038, France
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Centre hospitalier regional de Trois-Rivieres
Trois-Rivières, Quebec, G8Z 3R9, Canada
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Chungnam National University Hospital
Daejeon, 35015, South Korea
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First Affiliated Hospital of Medical College of Xi'an Jiaotong University
Xi'an, 710061, China
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Guangxi Cancer Hospital of Guangxi Medical University
Nanning, 530021, China
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Gyeongsang National University Hospital
Gyeongsangnam-do, 52727, South Korea
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Health Pharma Professional Research
Mexico City, Mexico CITY (federal District), 03100, Mexico
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Hopital Bretonneau
Tours, 37044, France
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Hopital De Haut Leveque
Pessac, 33604, France
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Hopital Henri Mondor
Créteil, 94010, France
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Hospital Clinico Universitario de Salamanca
Salamanca, 37007, Spain
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Hospital Sao Rafael - HSR
Salvador, Estado de Bahia, 41253-190, Brazil
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Hospital Univ. 12 de Octubre
Madrid, 28041, Spain
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Hospital Universitari Germans Trias i Pujol
Badalona, Barcelona, 08915, Spain
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Hospital Universitario Dr. Peset
Valencia, 46017, Spain
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Hospital Universitario de Canarias
San Cristóbal de La Laguna, Tenerife, 38320, Spain
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Hospital das Clinicas - FMUSP
São Paulo, São Paulo, 05403-000, Brazil
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Hospital das Clinicas - UFRGS
Porto Alegre, Rio Grande do Sul, DUMMY_VALUE, Brazil
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Hospital de Especialidades Centro Medico Nacional La Raza
Mexico City, Mexico CITY (federal District), 02990, Mexico
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Hu Nan Provincial Cancer Hospital
Changsha, 410006, China
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ICANS
Strasbourg, 67200, France
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IHA Hematology Oncology Consultants - Ann Arbor
Ann Arbor, Michigan, 48106, United States
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Institute of Hematology and Hospital of Blood Disease
Tianjin, 300020, China
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Instituto Nacional de Cancerologia
Distrito Federal, 14080, Mexico
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Istanbul Uni Istanbul Medical Faculty
Istanbul, 34093, Turkey (Türkiye)
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Istanbul University Cerrahpasa Medical Faculty
Istanbul, 34098, Turkey (Türkiye)
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Kings College Hospital
London, SE5 9RS, United Kingdom
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Kocaeli Universitesi Tip Fakultesi
Kocaeli, 41380, Turkey (Türkiye)
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Laiko General Hospital
Athens, 115 27, Greece
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Liga Norte Riograndense Contra O Câncer
Natal, Rio Grande do Norte, 59040150, Brazil
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London Health Sciences Centre
London, Ontario, N6A 5W9, Canada
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MSKCC at Basking Ridge
Basking Ridge, New Jersey, 07920, United States
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Memorial Cancer Institute at Memorial West
Pembroke Pines, Florida, 33028, United States
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Memorial Sloan Kettering Cancer Center at Bergen
Montvale, New Jersey, 07645, United States
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Memorial Sloan Kettering Nassau
Uniondale, New York, 11553, United States
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Memorial Sloan-Kettering Cancer Center
New York, New York, 10065, United States
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Niagara Health Systems - St. Catherines General Site
St. Catharines, Ontario, L2R 7C6, Canada
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Nottingham City Hospital
Nottingham, NG5 1PB, United Kingdom
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Oulu University Hospital
Oulu, 90029, Finland
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Pusan National University Hospital
Busan, 49241, South Korea
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Sakarya Universitesi Egitim ve Arastirma Hastanesi
Adapazari/Sakarya, 54100, Turkey (Türkiye)
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Seoul National University Bundang Hospital
Seongnam-si, 13605, South Korea
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Severance Hospital, Yonsei University Health System
Seoul, 03722, South Korea
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St James' Hospital
Dublin, DUMMY_VALUE, Ireland
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Tampere University Hospital
Tampere, 33520, Finland
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Tata Medical Center
Kolkata, West Bengal, 700160, India
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Tata Memorial Hospital
Mumbai, Maharashtra, 400013, India
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The 1st Affiliated Hospital of Nanchang Unversity
Nanchang, 330006, China
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USL 4 di Prato - Nuovo Ospeale di Prato
Prato, Tuscany, 59100, Italy
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Uni Degli Studi Di Bari, Policlinico
Bari, Apulia, 70124, Italy
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Union Hospital Tongji Medical College Huazhong University of Science and Technology
Wuhan, 430023, China
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Universitätsklinikum Ulm
Ulm, 89081, Germany
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West China Hospital - Sichuan University
Chengdu, 610047, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- New drug BL-M08D1 joins standard therapy in fight against aggressive lymphoma
- Can AI spot the lymphoma patients who Won't respond?
- Outpatient immunotherapy tested for hard-to-treat lymphomas
- Can an antibody drug boost standard chemotherapy against an aggressive blood cancer?
- A CAR-T therapy given by injection: can it help Hard-to-Treat lymphoma?
- New drug joins standard chemotherapy in fight against B-Cell lymphoma