Large B Cell LymphomaPhase 2REPIFIRNCT07126236
Response-adaptive to Epcoritamab In First Relapse: Study to Evaluate the Efficacy of Eptoritamab in Patients With Relapse/Refractory Large B Cell Lymphoma
A Phase 2 study testing Epcoritamab and Epcoritamab, tafasitamab and lenalidomide in people with Large B Cell Lymphoma, run by Grupo Español de Linfomas y Transplante Autólogo de Médula Ósea at 19 sites in Spain.
Trial summary
phase II, response-adaptive, open-label, multicenter study aiming to include 80 patients in 78 months. Patients will receive 3 cycles of epcoritamab monotherapy and, since cycle 4, they can continue with epcoritamab monotherapy until cycle 12 or change to combination therapy (epcoritamab + tafasitamab + lenalidomide)… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Large B Cell Lymphoma
- What is being tested?
- Epcoritamab and Epcoritamab, tafasitamab and lenalidomide
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 19 sitesSpain
- Study dates
- 4 Aug 2025to 27 Dec 2031
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Written informed consent must be obtained before any study-specific assessment is performed.
- Age >18 years
- Patients with Relapse/Refractory histologically confirmed LBCL, including, Diffuse Large B Cell Lymphoma (DLBCL); Primary Mediastinal Large B Cell Lymphoma (PMBCL), High-grade B-cell lymphoma (HGBCL); and grade 3B Follicular Lymphoma.
- Relapsed disease is defined as complete remission to first line therapy followed by a recurrence of the disease after a minimum of 6 months of completion of first-line therapy. A biopsy at the time of relapse is recommended but not mandatory.
- Refractory disease is defined as no objective response to first line therapy (biopsy not mandatory if diagnostic sample available). Four groups of patients are eligible:
- PD as best response to first line therapy.
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- SD as best response after at least 4 cycles of first line therapy.
- PR as best response after at least 6 cycles of first line therapy.
- CR and disease recurrence within < 6 months from the completion of first-line therapy.
- Patients must have received adequate first-line therapy including at a minimum: an anti-CD20 monoclonal antibody (rituximab or obinutuzumab), and CHOP (cyclophosphamide, hydroxydaunomycin, oncovin, and prednisone) or CHOP-like chemotherapy.
- At the investigator's discretion, the patient should not be a candidate for 1st relapse CAR-T therapy or unwilling to receive CAR-T therapy.
- Patients must be autologous stem cell transplantation (ASCT)-ineligible: Age ≥65 and/or HTC-CI ≥3 or or unwilling to receive transplant.
- PET positive disease.
- Performance status according to Eastern Cooperative Oncology Group (ECOG) 0 to 2.
- Patients meeting with the following hematology values:
- Hemoglobin ≥8 g/dl (transfusion support permitted but not within 7 days of screening lab collection)
- Absolute neutrophil count (ANC) ≥ 1/109/L (growth factor support allowed in case of bone marrow involvement).
- Absolute lymphocyte count ≥ 0.1/109/L,
- Platelet count ≥ 70/109/L (unless secondary to bone marrow involvement, OR ≥50x/109/L if documented bone marrow involvement). Platelet transfusions permitted but not within 7 days of screening lab collection.
- Female patients of child-bearing potential must have a negative urine or serum pregnancy test at screening and agree to use highly effective methods of contraception (e.g., established use of oral, injected or implanted combined (estradiol and progesterone containing) hormonal contraception; placement of an intrauterine device (IUD) or intrauterine system (IUS) upon enrollment according to the recommendations provided by Clinical Trial Facilitation Group (CTFG), during the treatment period and for 4 months after the last dose of study medication. Moreover, the patient must agree to ongoing pregnancy testing during the course of the study, and after study therapy has ended. This applies even if the patient practices complete and continued sexual abstinence.
- Women not of childbearing potential are defined as: premenarchal; postmenopausal (greater than 50 years of age with amenorrhea for at least 12 months or any age with amenorrhea for at least 6 months and a serum follicle stimulating hormone (FSH) level greater than 40 IU per L or milli-International unit (mIU) per mL); permanently sterilized (e.g., bilateral tubal occlusion [which includes tubal ligation procedures as consistent with local regulations], hysterectomy, bilateral salpingectomy, bilateral oophorectomy); or otherwise be incapable of pregnancy.
- Male patients must use a reliable method of contraception (if sexually active with a female of child-bearing potential) upon enrollment according to the recommendations provided by CTFG, during the treatment period, and for 4 months following the last dose of investigational drug or agreement to remain abstinent. Agreement to refrain from donating blood or sperm during the study participation and for 4 months after the last dose of study medication.
- Women must agree not to donate blood or oocytes during the course of the study and for 4 months after the last dose of study medication. Restrictions concerning blood donation apply as well to females who are not of childbearing potential. Men must also not donate sperm during the trial and for 4 months after receiving the last dose of study drug.
- Females of childbearing potential must refrain from breastfeeding during the course of the study and for 4 months after the last dose of study medication.
- Willingness and ability to comply with scheduled visits, treatment plans, laboratory tests, and other study procedures.
- Not included in other clinical trial or treated with an experimental drug.
Who cannot join
- Patients who received more than one prior line of systemic therapy
- Patients with detectable Central Nervous System (CNS) lymphoma
- Significant organ function impairment:
- creatinine clearance calculated by Cockcroft-Gault ≤ 45 ml/min
- direct bilirubin level < 2 x ULN (except in patients with Gilbert's syndrome),
- alanine transaminase (ALT) and aspartate aminotransferase (AST) >3 × ULN or >5 × ULN in cases of documented liver involvement.
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- clinically relevant pleural effusion,
- left ventricular ejection fraction (LVEF) ≤ 45%
- Serious accompanying disorder leading to impaired organ function causing significant clinical problems and reduced life expectancy of less than 3 months.
- Have a history of deep venous thrombosis/embolism, threatening thromboembolism or known thrombophilia or are at a high risk for a thromboembolic event in the opinion of the investigator and who are not willing/able to take venous thromboembolic event prophylaxis during the entire treatment period
- Known clinically significant cardiac disease, including:
- Onset of unstable angina pectoris within 6 months of signing the patient informed consent form.
- Acute myocardial infarction within 6 months of signing the patient informed consent form.
- Congestive heart failure (grade III or IV as classified by the New York Heart Association.
- Left ventricular ejection fraction ≤45%.
- Known past or current malignancy other than inclusion diagnosis, except for: Cervical carcinoma of Stage 1B or less; Non-invasive basal cell or squamous cell skin carcinoma; Non-invasive, superficial bladder cancer; Localized low grade prostate cancer (up to Gleason score 6); DCIS of the breast; Other malignancy that has been treated with curative intent and has remained in remission for 3 years.
- Previous ASCT.
- Prior anti-CD3 and CD20 bispecific antibodies therapy or prior treatment with tafasitamab.
- Presence of severe infection that is uncontrolled or requiring IV antimicrobials for management.
- History of HIV infection or acute or chronic active hepatitis B or C infection.
- Individuals with positive HIV serology may be included if negative viral load and CD4 >200/mm3. For being included, patients should have controlled disease and been on treatment for at least 1 year
- Individuals with history of hepatitis infection with positive antibodies (anti-HB and anti-HV) might be included if negative viral load (negative hepatitis B PCR). Patients who are HBcAb positive must receive HBV prophylaxis while on treatment. Patients with positive HbsAg are excluded. Patients who are hepatitis B PCR positive will be excluded. Patients who are hepatitis C RNA positive will be excluded.
- Females who are pregnant or breastfeeding.
- Richter's transformation or prior chronic lymphocytic leukemia (CLL).
- Treatment with radiotherapy, chemotherapy, immunotherapy, immunosuppressive therapy, or any investigational agent for the purposes of treating cancer within 4 weeks prior to Cycle 1 Day 1.
- Recent major surgery (within 4 weeks before the start of Cycle 1 Day 1) other than for diagnosis.
- Vaccination with a live vaccine or COVID-19 vaccination within 4 weeks prior to treatment.
- History of hypersensitivity to any of the study drugs or their ingredients or to drugs with similar structure. History of severe allergic or anaphylactic reactions to human, humanized, chimeric, or murine monoclonal antibodies.
- Close affiliation with the investigator (e.g. a close relative) or persons working at the study site.
Trial locations and contacts
19 sites in 1 country. Contact the study team or a site near you to ask about taking part.
19 sites in 1 country
Spain19 sites, 19 recruiting
- Recruiting
ICO Badalona
Badalona, Catalonia, 08916
Juan Manuel Sancho, +34 934 651 200, jsancho@iconcologia.net
- Recruiting
Hospital Universitari Vall d'Hebrón
Barcelona, Catalonia, 08035
Pau Abrisqueta, +34 932 746 100 ext. 4976 or 2697, pau.abrisqueta9@gmail.com
- Recruiting
Hospital Universitario de Basurto
Bilbao, Vizcaya, 48013
Cristina Barrenetxea, +34 944 006 000, cristina.barrene@gmail.com
- Recruiting
Hospital Universitario de Burgos
Burgos, Castille and León, 09006
Francisco Javier Díaz, +34 947 281 800 ext. 36071, fcdiaz@saludcastillayleon.es
- Recruiting
Hospital San Pedro de Alcántara
Cáceres, Extremadura, 10003
Juan Miguel Bergua, +34 927 621 540, jmberguaburg@gmail.com
- Recruiting
Hospital Virgen de la Arrixaca
El Palmar, Murcia, 30120
Almudena Cascales, +34 968 369 532, almudena.cascales@gmail.com
- Recruiting
Hospital General Universitario Gregorio Marañón
Madrid, Madrid, 28007
Mariana Bastos-Oreiro, +34 914 269 826, bastosmariana@yahoo.com
- Recruiting
Hospital Universitario Infanta Leonor
Madrid, Madrid, 28031
María Stefania Infante, +34 911 919 114, mariastefania.infante@salud.madrid.org
- Recruiting
Hospital Universitario Fundación Jiménez Díaz
Madrid, Madrid, 28040
Raúl Córdoba, +34 915 504 880, raul.cordoba@fjd.es
- Recruiting
Hospital Universitario 12 de Octubre
Madrid, Madrid, 28041
Ana Jiménez Ubieto, MD, +34 917 792 809, anitiju@hotmail.com
- Recruiting
Hospital Universitario Costa del Sol
Marbella, Málaga, 29603
María Casanova, +34 951 976 542, mariacasanova@yahoo.com
- Recruiting
Hospital Universitario Central de Asturias
Oviedo, Principality of Asturias, 33011
Angel Ramírez, +34 985 652 489, apayer.angel@gmail.com
- Recruiting
Hospital Universitario Son Espases
Palma de Mallorca, Balearic Islands, 07120
Antonio Gutiérrez, MD, +34 871 205 000 ext. 65115, antoniom.gutierrez@ssib.es
- Recruiting
Hospital Universitario de Salamanca
Salamanca, Castille and León, 37007
Alejandro Martín García-Sancho, MD, +34 923 291 100, amartingar@usal.es
- Recruiting
Hospital Universitario de Canarias
San Cristóbal de La Laguna, Tenerife, 38320
María José Rodríguez, +34 922 678 000, rodriguezsalazarmariajose@gmail.com
- Recruiting
Hospital Universitario Virgen del Rocío
Seville, Andalusia, 41013
Fátima de la Cruz Vicente, MD, +34 955 0132 61, fatimadelacruzv@gmail.com
- Recruiting
Hospital Universitario Dr. Peset
Valencia, Valencia, 46017
Eva María Donato, +34 963 189 168, donato_eva@gva.es
- Recruiting
Hospital Universitario y Politécnico La Fe
Valencia, Valencia, 46024
Rafael Andreu, +34 961 244 868, andreu_raflap@gva.es
- Recruiting
Hospital Universitario Miguel Servet
Zaragoza, Aragon, 50009
Araceli Rubio, +34 976 765 690, arubiom@salud.aragon.es
About this study
Official title: Response-adaptive to Epcoritamab In First Relapse: A Phase II, Response-adaptive, Open-Label, Multicenter Study to Evaluate the Efficacy of Eptoritamab in Patients With Relapse/Refractory Large B Cell Lymphoma
phase II, response-adaptive, open-label, multicenter study aiming to include 80 patients in 78 months. Patients will receive 3 cycles of epcoritamab monotherapy and, since cycle 4, they can continue with epcoritamab monotherapy until cycle 12 or change to combination therapy (epcoritamab + tafasitamab + lenalidomide) until cycle 15. Patients will be followed up to 5 years.
Read the detailed description
Epcoritamab is a full-length bispecific IgG1 antibody directed against two proteins, CD3 on the T lymphocyte and CD20 on the lymphoma cell. This antibody redirects and activates T cells, generating an immune synapse that eventually eliminates malignant cells expressing CD20.
Previous studies have demonstrated that Epcoritamab has potent antitumor activity as a monotherapy agent, with a favorable and manageable safety profile.
Since its efficacy is so favorable it is reasonable to think that it could be an excellent option for first-relapse patients. However, to date, there is no data on this therapy's usefulness as second-line treatment. Therefore we intend to evaluate the efficacy of Epcoritamab as a treatment option for patients with first-relapse LBCL.
The purpose of this study is to determine the efficacy of Epcoritamab as second line treatment for LBCL patients. On the basis of the clinical experience, it is hypothesized that Epcoritamab would provide a better complete response rate (CRR) in comparison to Platinum-based immunochemotherapy (CRR=25%), Polatuzumab-Bendamustin Rituximab (CRR=40%) and Tafasitamab-Lenalidomide (CRR=43%).
- Conditions
- Large B Cell Lymphoma
- Being tested
- Epcoritamab, Epcoritamab, tafasitamab and lenalidomide
- Keywords
- lymphoma, geltamo, DIFFUSE LARGE B-CELL LYMPHOMA, DLBCL, RELAPSE, epcoritamab, tafasitamab, lenalidomide
- Medical subject headings
- Lymphoma, Lymphoma, Large B-Cell, Diffuse, Recurrence
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
EpcoritamabDrug
Patients will receive 12 cycles of Epcoritamab monotherapy.
Epcoritamab, tafasitamab and lenalidomideDrug
Patients will receive 3 cycles of Epcoritamab monotherapy and then 12 cycles of Epcoritamab, Tafasitamab and Lenalidomide.
| Study group | Role | What they receive |
|---|---|---|
| EPCO monotherapy | Experimental | Epcoritamab in monotherapy will be administred until cycle 12. Receives: Drug: Epcoritamab |
| Combination therapy | Experimental | 3 cycles of Epcoritamab in monotherapy will be administred and then Epcoritamab will be administred with Tafasitamab and Lenalidomide from cycle 4 until cycle 15. Receives: Drug: Epcoritamab, tafasitamab and lenalidomide |
What is being measured
The primary outcome is the main question the study is designed to answer.
Efficacy of Epcoritamab monotherapy
The efficacy of Epcoritamab monotherapy will be centrally evaluated by the best CRR at any moment since initiation. The CRR will be assessed by PET-CT according to Lugano Classification and is defined as the proportion of patients who achieve a best response of complete response (CR) at any moment since initiation of Epcoritamab first administration.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days.
Secondary outcomes (13)
Efficacy of Epcoritamab monotherapy after 3 cycles
The efficacy of Epcoritamab monotherapy will be centrally evaluated by the best CRR, defined as the proportion of patients who achieve a best response of CR after 3 cycles of Epcoritamab administration.
Measured: At the end of cycle 3 (each cycle is 28 days)
Efficacy of Epcoritamab monotherapy and combination therapy by CRR
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per CRR (locally evaluated for Epcoritamab monotherapy; local and central evaluation for combination therapy).
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days.
Evaluation of MRD
The efficacy of Epcoritamab monotherapy and combination therapy will be evaluated by MRD (positive or negative) from ctDNA samples immediately before initiation of C3, C4, C7, C10, C12, C13, C15, End of Treatment (EoT) and cycles 18/24 (epcoritamab monotherapy) or cycles 21/27 (combination therapy).
Measured: Cycles 3, 4, 7, 10, 12, 13, 15 (each cycle is 28 days), EoT (28 days after last administration of Study drug) and cycles 18 and 24 (epcoritamab monotherapy) or cycles 21 and 27 (combination therapy) visits (each cycle is 28 days).
Evaluation of patients with negative MRD by PFS
The PFS of patients with negative MRD at Visit 3 (V3) (immediately before administrating C3 of Epcoritamab monotherapy).
Measured: At cycle 3 visit (each cycle is 28 days).
Safety and tolerability
The safety and tolerability of Epcoritamab monotherapy and combination therapy are evaluated as follows:
- Type, frequency, and severity of adverse events (AEs).
- Type, frequency, and severity of Adverse events of special interest (AESIs): Cytokine release syndrome (CRS), immune effector cell-associated neurotoxicity syndrome (ICANS), clinical tumor lysis syndrome (CTLS) and other safety topics of interest (tumour flare reaction, prolonged cytopenia, serious infections and second primary malignancies).
- Incidence, severity, and treatment.
Measured: Baseline, during all the cycles day 1 visit (each cycle is 28 days) and at EoT (28 days afert las administration of Study drug).
Efficacy of Epcoritamab Monotherapy and Combination therapy by ORR
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per ORR at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab Monotherapy and combination therapy by DoR
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per DoR at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by DoCR
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per DoCR at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by EFS
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per Event-free survival (EFS) at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by PFS
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per PFS at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab montherapy and combination therapy by OS
The efficacy of Epcoritamab monotherapy and combination therapy with tafasitamab-lenalidomide will be evaluated by local investigators and central evaluation as per OS at any time.
Measured: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Evaluation of patients with negative MRD by OS
The OS of patients with negative MRD at Visit 3 (V3) (immediately before administrating C3 of Epcoritamab monotherapy).
Measured: At cycle 3 visit (each cycle is 28 days).
Evaluation of patients with negative MRD by DoR
The DoR of patients with negative MRD at Visit 3 (V3) (immediately before administrating C3 of Epcoritamab monotherapy).
Measured: At cycle 3 visit (each cycle is 28 days).
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted17 Aug 2025
- Study start4 Aug 2025
- Primary completion27 Dec 2031 (estimated)
- Study completion27 Dec 2031 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Large B Cell LymphomaStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Grupo Español de Linfomas y Transplante Autólogo de Médula Ósea
- Sponsor type
- University, hospital or other
- Collaborators
- AbbVie, Incyte Corporation, Evidenze CRO
- Responsible party
- Sponsor
- Investigators
- Mariana Bastos-Oreiro, Principal investigator, Hospital General Universitario Gregorio MarañonPau Abrisqueta, Principal investigator, Hospital Universitari Vall d'Hebrón
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07126236
- Sponsor's protocol ID
- REPIFIR-AGR-GEL-23
- Other IDs
- 2024-514440-86-00
- Acronym
- REPIFIR
- Status last verified
- Sep 2026
- First submitted
- 10 Jul 2025
- Last updated
- 29 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: Data obtained through this study may be provided to qualified researchers with academic interest in hematology diseases. All individual data collected during the trial will be available. Data shared will be coded, with no PHI included. Study protocol, statistical analysis plan, informed consent form and clinical study report will be also available. Information will be available beginning 6 months after final publication with no end date established. Approval of the request and execution of all applicable agreements are prerequisites to the sharing of data with the requesting party. Data requests can be submitted starting 6 months after article publication. Access to trial IPD can be requested by qualified researchers and will be provided following review and approval of a research and execution of a Data Sharing Agreement (DSA). For more information or to submit a request, please contact to GELTAMO though the web page: https://www.geltamo.com/contacto
Study at a glance
From the registry record, last updated by the sponsor on 29 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Response-adaptive to Epcoritamab In First Relapse: A Phase II, Response-adaptive, Open-Label, Multicenter Study to Evaluate the Efficacy of Eptoritamab in Patients With Relapse/Refractory Large B Cell Lymphoma
- ClinicalTrials.gov ID
- NCT07126236
- Acronym / sponsor ID
- REPIFIR / REPIFIR-AGR-GEL-23
- Conditions
- Large B Cell Lymphoma
- Keywords
- lymphoma, geltamo, DIFFUSE LARGE B-CELL LYMPHOMA, DLBCL, RELAPSE, epcoritamab, tafasitamab, lenalidomide
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- Grupo Español de Linfomas y Transplante Autólogo de Médula ÓseaUniversity, hospital or other
- Collaborators
- AbbVie, Incyte Corporation, Evidenze CRO
- Study start
- 4 Aug 2025 (actual)
- Primary completion
- 27 Dec 2031 (estimated)
- Study completion
- 27 Dec 2031 (estimated)
- First posted
- 17 Aug 2025 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
phase II, response-adaptive, open-label, multicenter study aiming to include 80 patients in 78 months. Patients will receive 3 cycles of epcoritamab monotherapy and, since cycle 4, they can continue with epcoritamab monotherapy until cycle 12 or change to combination therapy (epcoritamab + tafasitamab + lenalidomide) until cycle 15. Patients will be followed up to 5 years.
Detailed description
Epcoritamab is a full-length bispecific IgG1 antibody directed against two proteins, CD3 on the T lymphocyte and CD20 on the lymphoma cell. This antibody redirects and activates T cells, generating an immune synapse that eventually eliminates malignant cells expressing CD20.
Previous studies have demonstrated that Epcoritamab has potent antitumor activity as a monotherapy agent, with a favorable and manageable safety profile.
Since its efficacy is so favorable it is reasonable to think that it could be an excellent option for first-relapse patients. However, to date, there is no data on this therapy's usefulness as second-line treatment. Therefore we intend to evaluate the efficacy of Epcoritamab as a treatment option for patients with first-relapse LBCL.
The purpose of this study is to determine the efficacy of Epcoritamab as second line treatment for LBCL patients. On the basis of the clinical experience, it is hypothesized that Epcoritamab would provide a better complete response rate (CRR) in comparison to Platinum-based immunochemotherapy (CRR=25%), Polatuzumab-Bendamustin Rituximab (CRR=40%) and Tafasitamab-Lenalidomide (CRR=43%).
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| EPCO monotherapy | Experimental | Drug: EpcoritamabEpcoritamab in monotherapy will be administred until cycle 12. |
| Combination therapy | Experimental | Drug: Epcoritamab, tafasitamab and lenalidomide3 cycles of Epcoritamab in monotherapy will be administred and then Epcoritamab will be administred with Tafasitamab and Lenalidomide from cycle 4 until cycle 15. |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (26 listed)
- Written informed consent must be obtained before any study-specific assessment is performed.
- Age >18 years
- Patients with Relapse/Refractory histologically confirmed LBCL, including, Diffuse Large B Cell Lymphoma (DLBCL); Primary Mediastinal Large B Cell Lymphoma (PMBCL), High-grade B-cell lymphoma (HGBCL); and grade 3B Follicular Lymphoma.
- Relapsed disease is defined as complete remission to first line therapy followed by a recurrence of the disease after a minimum of 6 months of completion of first-line therapy. A biopsy at the time of relapse is recommended but not mandatory.
- Refractory disease is defined as no objective response to first line therapy (biopsy not mandatory if diagnostic sample available). Four groups of patients are eligible:
Key exclusion criteria (29 listed)
- Patients who received more than one prior line of systemic therapy
- Patients with detectable Central Nervous System (CNS) lymphoma
- Significant organ function impairment:
- Serious accompanying disorder leading to impaired organ function causing significant clinical problems and reduced life expectancy of less than 3 months.
- Have a history of deep venous thrombosis/embolism, threatening thromboembolism or known thrombophilia or are at a high risk for a thromboembolic event in the opinion of the investigator and who are not willing/able to take venous thromboembolic event prophylaxis during the entire treatment period
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| EpcoritamabPatients will receive 12 cycles of Epcoritamab monotherapy. | Drug | EPCO monotherapy |
| Epcoritamab, tafasitamab and lenalidomidePatients will receive 3 cycles of Epcoritamab monotherapy and then 12 cycles of Epcoritamab, Tafasitamab and Lenalidomide. | Drug | Combination therapy |
Primary outcome
Efficacy of Epcoritamab monotherapy
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days.
The efficacy of Epcoritamab monotherapy will be centrally evaluated by the best CRR at any moment since initiation. The CRR will be assessed by PET-CT according to Lugano Classification and is defined as the proportion of patients who achieve a best response of complete response (CR) at any moment since initiation of Epcoritamab first administration.
13 secondary outcomes
Efficacy of Epcoritamab monotherapy after 3 cycles
Time frame: At the end of cycle 3 (each cycle is 28 days)
Efficacy of Epcoritamab monotherapy and combination therapy by CRR
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days.
Evaluation of MRD
Time frame: Cycles 3, 4, 7, 10, 12, 13, 15 (each cycle is 28 days), EoT (28 days after last administration of Study drug) and cycles 18 and 24 (epcoritamab monotherapy) or cycles 21 and 27 (combination therapy) visits (each cycle is 28 days).
Evaluation of patients with negative MRD by PFS
Time frame: At cycle 3 visit (each cycle is 28 days).
Safety and tolerability
Time frame: Baseline, during all the cycles day 1 visit (each cycle is 28 days) and at EoT (28 days afert las administration of Study drug).
Efficacy of Epcoritamab Monotherapy and Combination therapy by ORR
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab Monotherapy and combination therapy by DoR
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by DoCR
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by EFS
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab monotherapy and combination therapy by PFS
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Efficacy of Epcoritamab montherapy and combination therapy by OS
Time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days
Evaluation of patients with negative MRD by OS
Time frame: At cycle 3 visit (each cycle is 28 days).
Evaluation of patients with negative MRD by DoR
Time frame: At cycle 3 visit (each cycle is 28 days).
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Sep 2026.
- GELTAMO web pageLink provided by the sponsor.
- Individual participant dataSharing planned: Yes. Data obtained through this study may be provided to qualified researchers with academic interest in hematology diseases. All individual data collected during the trial will be available. Data shared will be coded, with no PHI included. Study protocol, statistical analysis plan, informed consent form and clinical study report will be also available. Information will be available beginning 6 months after final publication with no end date established. Approval of the request and execution of all applicable agreements are prerequisites to the sharing of data with the requesting party. Data requests can be submitted starting 6 months after article publication. Access to trial IPD can be requested by qualified researchers and will be provided following review and approval of a research and execution of a Data Sharing Agreement (DSA). For more information or to submit a request, please contact to GELTAMO though the web page: https://www.geltamo.com/contacto
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Mariana Bastos-Oreiro principal investigator
Hospital General Universitario Gregorio Marañon
Pau Abrisqueta principal investigator
Hospital Universitari Vall d'Hebrón
19 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Epcoritamab and Epcoritamab, tafasitamab and lenalidomide in people with Large B Cell Lymphoma, run by Grupo Español de Linfomas y Transplante Autólogo de Médula Ósea at 19 sites in Spain.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 26 inclusion and 29 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 29 Sep 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 19 sites in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Auxi Moreno (+34 683 636 850, amoreno@geltamo.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Efficacy of Epcoritamab monotherapy (time frame: Cycle 3, cycle 4, cycle 7, cycle 10, cycle 13 (for combination therapy) and EoT (28 days after last administration of investigational product) visits. Each cycle is 28 days.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2026; AzTrials last refreshed its copy on 30 Oct 2026.