Diffuse Large B-cell LymphomaPhase 3NCT02268045
Study of RTXM83 Plus CHOP Chemotherapy Versus a Rituximab Plus CHOP Therapy in Patients With Non Hodgkin's Lymphoma
A Phase 3 study testing RTXM83 and Mabthera in people with Diffuse Large B-cell Lymphoma, run by mAbxience Research S.L. at 87 sites in 12 countries.
Trial summary
This is a multicenter, double-blind, randomized study comparing the efficacy, pharmacokinetics (PK)/pharmacodynamics (PD), safety and immunogenicity profile of RTXM83 (rituximab biosimilar) vs reference rituximab (MabThera®), both with CHOP, as first-line treatment of Diffuse-Large-B-Cell-Lymphoma (DLBCL). Read more about this study
- Who is it for?
- Ages 18 to 65 years
- Conditions the study is for
- Diffuse Large B-cell Lymphoma
- What is being tested?
- RTXM83 and Mabthera
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 272 participants
- Where
- 87 sitesin 12 countries
- Study dates
- May 2013to Jul 2017
- Phase
- Phase 3
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
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 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients with measurable disease defined as existence of a unidimensional or bidimensional lesion greater than 2 cm in its longest diameter or malignant lymphocytosis greater than 5x109/L. Any other procedure for measurable disease in particular cases, may be allowed upon Sponsor approval
- Newly diagnosed patients with a confirmed pathologic diagnosis of Diffuse large B cell-non-Hodgkin's lymphoma (DLBCL) with untreated CD20+ receptor (CD20+). Defined by the local Haematopathologist at the local laboratory according to World Health Organization (WHO) criteria
- Stage II-III or IV or stage I with bulk defined by the referring physician on the basis of the Cotswolds modification of the Ann Arbor classification 2
- Age-adjusted International Prognostic Index (IPI) score 0 or 1
- Age ≥18 to ≤65 years of age
- Performance status according to Eastern Cooperative Oncology Group (ECOG) of ≤2
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- Written informed consent obtained before starting any study-specific procedure
- Females of child-bearing potential must test negative on standard serum pregnancy test and must be willing to practice appropriate contraceptive methods for the duration of the study (e.g. oral contraceptive, double barrier method, intra-uterine device, intra-muscular contraceptive)
- All male patients must take adequate contraceptive precautions during the course of the study
Who cannot join
- Life expectancy of less than three months
- Any other lymphoma other than CD20+ DLBCL
- Indolent lymphoma, Primary central nervous system (CNS) Lymphoma or gastro-intestinal Mucosa Associated Lymphoid Tissue (MALT) Lymphoma
- Known hypersensitivity to active ingredients, excipients and murine and foreign proteins
- Concurrent disease or general status that would exclude giving the treatment as outlined in the protocol
- Active uncontrolled infection requiring systemic treatment with antibiotics or antiviral agents at Screening or history of documented recurrent clinically significant infection (e.g. 2 or more viral, bacterial or fungal infections requiring inpatient treatment)
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- Cardiac contra-indication to Doxorubicin therapy: non-compensated heart failure, dilated cardiomyopathy, coronary heart disease with ST segment depression on electrocardiogram (ECG), myocardial infarction in the last 6 months
- Neurologic contra-indication to Vincristine as it is indicated in the Summary of Product Characteristics (SmPC): (e.g. peripheral neuropathy)
- Chronic lung disease with hypoxemia measured by pulse oximetry (gasometry is not mandatory)
- Severe uncontrolled hypertension, despite optimal medical treatment
- Severe uncontrolled diabetes mellitus, despite optimal medical treatment
- Renal insufficiency (Serum Creatinine >2 x Upper Normal Limit [UNL])
- Hepatic insufficiency: aspartate aminotransferase (AST)/ alanine aminotransferase (ALT)>3 x UNL or >5 x UNL with involvement of the liver, total bilirubin >34.2 µmol/L, or both) not related to lymphoma
- Clinical signs of cerebral dysfunction
- Severe psychiatric disease
- Known human immunodeficiency virus (HIV) infection or active chronic hepatitis B or C
- Abnormal bone marrow function (platelets <100x109/L, neutrophils <1.5x109/L and Haemoglobin <9g/dL)
- Post-transplantation lymphoproliferative disease
- Pregnant or lactating women or women that intend to get pregnant during study or within 12 months following the last infusion
- Treatment with any investigational product in the 30 days period before inclusion in the study
- Prior radiotherapy to treat the DLBCL Non-Hodgkin's Lymphoma (NHL)
- Limitation of the patient's ability to comply with the treatment or follow-up protocol
Trial locations and contacts
87 sites in 12 countries.
87 sites in 12 countries
Brazil22 sites
Hospital das Clinicas-UFMG
Belo Horizonte
UNICAMP-Univ Zeferino Vaz
Campinas
Hospital Uniao Oeste Paranaense de Estudos e Comabte ao Cancer (UOPECCAN)
Cascavel
Hospital Erasto Gaertner CEPEP
Curitiba
Hospital das Clínicas da Universidade Federal de Goiás
Goiânia
Hospital de Caridade de Ijuí
Ijuí, Rio Grande do Sul
Hospital Santa Marcelina
Itaquera, São Paulo
Hospital Amaral Carvalho Jaú
Jaú, São Paulo
Hospital da Cidade de Passo Fundo
Passo Fundo, Rio Grande do Sul
Hospital São Lucas da PUCRS
Porto Alegre, Rio Grande do Sul
Santa Casa de Porto Alegre
Porto Alegre
Hospital Clinicas Porto Alegre
Pôrto Alegre, Rio Grande do Sul
Hospital das Clínicas da Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo-HCFMRP
Ribeirão Preto, São Paulo
Hospital Universitário Clemente Fraga Filho - UFRJ
Rio de Janeiro
Instituto COI de Educação e Pesquisa
Rio de Janeiro
Instituto Est. de Hematologia Arthur de Siqueira Cavalcanti
Rio de Janeiro
Monte Tabor - Hospital São Rafael
Salvador
CEPHO - Centro de Estudos e Pesquisas de Hematologia e Oncologia / Faculdade de Medicina do ABC
Santo André, São Paulo
Hospital de Base de São José
São José do Vale do Rio Preto
Fundação Antônio Prudente - AC Camargo Câncer Center
São Paulo, São Paulo
Centro de Pesquisa do Instituto Brasileiro de Controle do Câncer - IBCC
São Paulo
Hospital Clinica Faculdade Medicina USP
São Paulo
Argentina17 sites
Hospital Britanico
Buenos Aires
Hospital Gral. de Agudos Donación Francisco Santojanni
Buenos Aires
Instituto Roffo
Buenos Aires
Clinica Radiologica del Sur
Cipolletti, Río Negro Province
Hosp. Interzonal "R" Carrillo
Ciudadela, Bariloche
Centro Oncologico Riojano Integral (CORI)
Córdoba
Hospital Nacional de Clinicas
Córdoba
Hospital Privado de Cordoba
Córdoba
Sanatorio Allende
Córdoba
Ctr. Oncologico de Rosario
Rosario
Inst. Cardiovascular Rosario
Rosario
Instituto de Hematología y Medicina Clínica Dr. Rubén Dávoli
Rosario
Sanatorio Parque
Rosario
Hospital Angel Padilla
San Miguel de Tucumán
Fundación ARS Médica
San Salvador de Jujuy
Hospital J. B. Iturraspe
Santa Fe
Clinica Viedma
Viedma, Río Negro Province
Russia15 sites
Arkhangelsk Clinical Oncology Dispensary
Arkhangelsk
Kursk regional clinical oncology dispensary
Kursk
N.N. Blokhin Russian Cancer Research Cente
Moscow
National Medical Surgical Center n.a. N.I. Pirogov
Moscow
Murmansk regional oncology dispensary
Murmansk
State Budgetary Healthcare Institution of Stavropol region "Pyatigorsk oncology center"
Pyatigorsk
Rostov Scientific Research Oncology Institute
Rostov-on-Don
Russian Research Center for Radiology and Surgical Technologies
Saint Petersburg
Saint-Petersburg State Budgetary Institution "City Clinical Oncology Dispensary"
Saint Petersburg
Scientific Research Institute of Oncology n.a. N.N. Petrov
Saint Petersburg
Oncology Center # 2
Sochi
Komi Republican Oncology Dispensary
Syktyvkar
State Healthcare Institution of Tula region "Tula regional clinical hospital"
Tula
Republican Clinical Oncology Dispensary
Ufa
Volgograd Regional Clinical Oncology Center
Volgograd
India12 sites
Srinivasam Cancer Care Hospital
Bangalore
Cancer Institute
Chennai
Rajiv Gandhi Cancer Institute and Research Centre
Delhi
Bibi General Hospital&Canc Ct
Hyderabad
Birla Cancer Center - SMS Hospital
Jaipur
Health Point Multi-specialty Hospital
Kolkata
Institute of Hematology and Transfusion Medicine
Kolkata
Netaji Subhash Chandra Bose Cancer Research Institute
Kolkata
Acharya Tulsi Regional Cancer Treatment and Research Institute
Madurai
Guru Hospital
Madurai
Meenakshi Mission Hospital
Madurai
Kailash Cancer Hospital and Research Centre
Vadodara
Philippines5 sites
Cebu Doctors University Hospital
Cebu
Perpetual Succour Hospital
Cebu
Davao Doctors Hospital
Davao City
National Kidney and Transplant Institute
Quezon City
Veterans Memorial Medical Center
Quezon City
Malaysia4 sites
Hospital Sultanah Aminah
Johor Bahru
University Malaya Medical Centre - UMMC
Kuala Lumpur, 59100
Mount Miriam Cancer Hospital
Pulau Pinang, 11200
Hospital Pulau Pinang
Pulau Pinang
South Africa4 sites
Tygerberg Academic Hosp
Cape Town
Rainbow Oncology Centre
eManzimtoti
GVI Oncology
Port Elizabeth
Chris Hani Baragwanath Hospital
Soweto
Colombia3 sites
Inst. Nacional de Cancerologia
Bogotá
Fundación Valle de Lili
Cali
Hospital Pablo Tobon Uribe
Medellín
Indonesia2 sites
Dr. Hasan Sadikin Hospital
Bandung
Dharmais N. C. Center
Jakarta
Paraguay1 site
Instituto Privado de Hematologia e Investigaciona Clinica
Asunción
About this study
Official title: A Randomized, Double-blind, Phase III Study Comparing Biosimilar Rituximab (RTXM83) Plus CHOP Chemotherapy Versus a Reference Rituximab Plus CHOP (R-CHOP) in Patients With Diffuse Large B-cell Lymphoma (DLBCL) Given as First Line
This is a multicenter, double-blind, randomized study comparing the efficacy, pharmacokinetics (PK)/pharmacodynamics (PD), safety and immunogenicity profile of RTXM83 (rituximab biosimilar) vs reference rituximab (MabThera®), both with CHOP, as first-line treatment of Diffuse-Large-B-Cell-Lymphoma (DLBCL).
Rituximab biosimilar and MabThera® were both administered intravenously on Day 1 of each 3-week cycle with CHOP chemotherapy for six cycles. Two additional cycles of treatment were permitted at the Investigator's discretion. Patients were followed up for 9 months after last study dose.
Read the detailed description
The primary endpoint of the investigation is to determine if the response rate obtained with RTXM83 combined with CHOP is non inferior to the response rate obtained with reference rituximab combined with CHOP.
The present study is a non inferiority trial and the study hypothesis is the following: H0: pc ≥ pe + δ vs. H1: pc < pe + δ where, pe: proportion of successes in the experimental group (RTXM83+CHOP) pc: proportion of successes in the control group (Reference Rituximab+CHOP) Type I error: the difference pc-pe is less than δ when in fact the difference is greater than or equal to δ ie, the investigators choose the experimental treatment when the control treatment is actually substantially better.
Type II error: the difference -pe is greater than or equal to δ when it is actually lest than δ ie, the investigators choose the control treatment when the experimental treatment is essentially just as good.
- Conditions
- Diffuse Large B-cell Lymphoma
- Being tested
- RTXM83, Mabthera
- Keywords
- Non-Hodgkin Lymphoma, DLBCL, Diffuse large b-cell lymphoma
- Medical subject headings
- Lymphoma, Large B-Cell, Diffuse, Lymphoma, Non-Hodgkin
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
RTXM83Biological
Also called Rituximab Biosimilar
Rituximab biosimilar (RTXM83) will be administered in combination with CHOP chemotherapy regimen (Cyclophosphamide 750 mg/m2, Doxorubicin 50 mg/m2 and Vincristine 1.4 mg/m2 up to a maximum of 2 mg on Day 1 plus Prednisone 40 mg/m2 or 100 mg per day from Day 1 to 5) at a dose of 375 mg/m2 on Day 1 of each 3 week cycle, for 6 cycles, although the administration of 2 additional cycles may be allowed.
MabtheraBiological
Also called Reference rituximab
Mabthera will be administered in combination with CHOP chemotherapy regimen (Cyclophosphamide 750 mg/m2, Doxorubicin 50 mg/m2 and Vincristine 1.4 mg/m2 up to a maximum of 2 mg on Day 1 plus Prednisone 40 mg/m2 or 100 mg per day from Day 1 to 5) at a dose of 375 mg/m2 on Day 1 of each 3 week cycle, for 6 cycles, although the administration of 2 additional cycles may be allowed.
| Study group | Role | What they receive |
|---|---|---|
| RTXM83 | Experimental | Active Ingredient: Rituximab (Biosimilar) Receives: Biological: RTXM83 |
| MabThera | Active comparator | Active Ingredient: Rituximab Receives: Biological: Mabthera |
What is being measured
The primary outcome is the main question the study is designed to answer.
Response Rate (RR) Achieved After Cycle 6 With RTXM83 Plus CHOP Compared to the RR Obtained With Mabthera® Plus CHOP (R-CHOP) in Patients With DLBCL
Per International Working Group (IWG) revised criteria for Malignant Lymphomas (Cheson et al. 2007) and assessed by positron-emission tomography scan, or by computed tomography scan and/or magnetic resonance imaging if Positron Emission Tomography (PET) scan was not feasible. Tumor response was classified according to the International Working Group criteria, as Complete Remission (CR): Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present before therapy; Partial Response (PR): At least a 50% decrease in sum of the product of the diameters of up to six of the largest dominant nodes or nodal masses; Stable disease (SD) or; Progressive disease. Response rate was the sum of CR and PR.
Measured: Tumor response assessed after Cycle 6 or at the end of treatment
Secondary outcomes (8)
AUC 0-∞ (h μg/mL) at Cycle 1 of RTXM83 and Mabthera®
Compare the pharmacokinetic (PK) parameter (AUC 0-∞) calculated from start of the first infusion until start of the second infusion (i.e. at Cycle 1) in a population PK model.
For the PK similarity assessments, regulatory guidelines on bioequivalence were followed whereby two treatments are judged not to be different from one another if the 90% confidence interval (CI) of the ratio between the geometric means of the measure (AUC 0-∞ ) falls completely within the range 80%-125%.
Measured: Cycle 1 (first dose): Day 1 (pre-dose, mid-infusion), Day 8 and Day 15
AUC 0-∞ (h μg/mL) at Cycle 6 of RTXM83 and Mabthera®
Compare the PK parameter (AUC 0-∞) calculated from start of the first infusion until Day 21 of administration of Cycle 6 in a population PK model.
For the PK similarity assessments, regulatory guidelines on bioequivalence were followed whereby two treatments are judged not to be different from one another if the 90% confidence interval (CI) of the ratio between the geometric means of the measure (AUC 0-∞ ) falls completely within the range 80%-125%.
Measured: Cycle 6 (last dose): Day 1, Day 8, Day 15 and Day 21
Cmax (μg/mL) at Cycle 1 of RTXM83 and Mabthera®
Compare the PK parameter (Cmax) calculated from start of the first infusion until start of the second infusion (i.e. at Cycle 1) in a population PK model.
For the PK similarity assessments, regulatory guidelines on bioequivalence were followed whereby two treatments are judged not to be different from one another if the 90% confidence interval (CI) of the ratio between the geometric means of the measure (Cmax) falls completely within the range 80%-125%.
Measured: Cycle 1 (first dose): Day 1 (pre-dose, mid-infusion), Day 8 and Day 15
Cmax (μg/mL) at Cycle 6 of RTXM83 and Mabthera®
Compare the PK parameter (Cmax) calculated from start of the first infusion until Day 21 of administration of Cycle 6 in a population PK model.
For the PK similarity assessments, regulatory guidelines on bioequivalence were followed whereby two treatments are judged not to be different from one another if the 90% confidence interval (CI) of the ratio between the geometric means of the measure (AUC 0-∞ ) falls completely within the range 80%-125%.
Measured: Cycle 6 (last dose): Day 1, Day 8, Day 15 and Day 21
Percentage Change From Baseline in Pharmacodynamic (PD) Markers (CD19+ and CD20+ Cells) Blood Counts of RTXM83 and Mabthera®
CD19 and CD20 are proteins found on the cell surface of B cells, and they can be detected in peripheral blood by flow cytometry. Flow cytometry of peripheral blood was performed for immediate analysis of cells with cluster of differentiation 19 (CD19+) and CD20+.
To compare the percent Change From Baseline ((Cycle 1 pre-dose) in pharmacodynamic markers (CD19+ and CD20+ Cells) in Peripheral Blood achieved in RTXM83 and Mabthera® arms at Cycle 1 end of infusion (EOI), 6 months and 9 months after last dose of treatment.
Measured: Up to follow-up 3 (FU3); 9 months after last dose of treatment
Comparable Safety Profile in Both Treatment Arms
Compare the frequency and severity of treatment emergent adverse events (TEAEs) and serious adverse events (SAEs) reported in each treatment arm.
Measured: Up to FU3; 9 months after last dose of treatment
Comparable Immunogenicity Profile Between RTXM83 and Mabthera®
Anti-Drug Antibody (ADA) developed de novo (seroconversion) after 6 cycles of treatment and 9 months of follow-up.
Measured: Up to FU3; 9 months after last dose of treatment
Event Free Survival (EFS) in RTXM83 Arm and Mabthera® Arm
Time from randomization to any of the following events: progressive disease, no achievement of CR, PR associated with treatment in excess of that per protocol, SD, relapse after achievement of CR, or death from any cause, whichever comes first.
Measured: Up to FU3; 9 months after last dose of treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted20 Oct 2014 (estimated)
- Study startMay 2013
- Primary completionMay 2016
- Study completionJul 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for Diffuse 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 3
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 272 participants (actual)
Sponsor and investigators
- Lead sponsor
- mAbxience Research S.L.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Pisa® Farmacéutica, Laboratorios de Productos Éticos C.E.I.S.A., Laboratorio Elea Phoenix S.A., Tecnoquimicas S.A, Innogene Kalbiotech Pte. Ltd, Libbs Farmacêutica LTDA, Key Oncologics (Pty) Ltd, Nanolek LLC, Actoverco
- Responsible party
- Sponsor
- Investigators
- Susana Millán, Phd, Study director, mAbxience Research S.L.
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02268045
- Sponsor's protocol ID
- RTXM83-AC-01-11
- Status last verified
- Aug 2019
- First submitted
- 19 Sep 2014
- Last updated
- 26 Sep 2019
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- Yes
Study at a glance
From the registry record, last updated by the sponsor on 26 Sep 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Randomized, Double-blind, Phase III Study Comparing Biosimilar Rituximab (RTXM83) Plus CHOP Chemotherapy Versus a Reference Rituximab Plus CHOP (R-CHOP) in Patients With Diffuse Large B-cell Lymphoma (DLBCL) Given as First Line
- ClinicalTrials.gov ID
- NCT02268045
- Acronym / sponsor ID
- RTXM83-AC-01-11
- Conditions
- Diffuse Large B-cell Lymphoma
- Keywords
- Non-Hodgkin Lymphoma, DLBCL, Diffuse large b-cell lymphoma
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 272 participants (actual)
- Lead sponsor
- mAbxience Research S.L.Industry (pharma, biotech, devices)
- Collaborators
- Pisa® Farmacéutica, Laboratorios de Productos Éticos C.E.I.S.A., Laboratorio Elea Phoenix S.A., Tecnoquimicas S.A, Innogene Kalbiotech Pte. Ltd, Libbs Farmacêutica LTDA, Key Oncologics (Pty) Ltd, Nanolek LLC, Actoverco
- Study start
- May 2013
- Primary completion
- May 2016 (actual)
- Study completion
- Jul 2017 (actual)
- First posted
- 20 Oct 2014 (estimated)
- Results
- Posted 26 Sep 2019
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This is a multicenter, double-blind, randomized study comparing the efficacy, pharmacokinetics (PK)/pharmacodynamics (PD), safety and immunogenicity profile of RTXM83 (rituximab biosimilar) vs reference rituximab (MabThera®), both with CHOP, as first-line treatment of Diffuse-Large-B-Cell-Lymphoma (DLBCL).
Rituximab biosimilar and MabThera® were both administered intravenously on Day 1 of each 3-week cycle with CHOP chemotherapy for six cycles. Two additional cycles of treatment were permitted at the Investigator's discretion. Patients were followed up for 9 months after last study dose.
Detailed description
The primary endpoint of the investigation is to determine if the response rate obtained with RTXM83 combined with CHOP is non inferior to the response rate obtained with reference rituximab combined with CHOP.
The present study is a non inferiority trial and the study hypothesis is the following: H0: pc ≥ pe + δ vs. H1: pc < pe + δ where, pe: proportion of successes in the experimental group (RTXM83+CHOP) pc: proportion of successes in the control group (Reference Rituximab+CHOP) Type I error: the difference pc-pe is less than δ when in fact the difference is greater than or equal to δ ie, the investigators choose the experimental treatment when the control treatment is actually substantially better.
Type II error: the difference -pe is greater than or equal to δ when it is actually lest than δ ie, the investigators choose the control treatment when the experimental treatment is essentially just as good.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| RTXM83 | Experimental | Biological: RTXM83Active Ingredient: Rituximab (Biosimilar) |
| MabThera | Active comparator | Biological: MabtheraActive Ingredient: Rituximab |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (9 listed)
- Patients with measurable disease defined as existence of a unidimensional or bidimensional lesion greater than 2 cm in its longest diameter or malignant lymphocytosis greater than 5x109/L. Any other procedure for measurable disease in particular cases, may be allowed upon Sponsor approval
- Newly diagnosed patients with a confirmed pathologic diagnosis of Diffuse large B cell-non-Hodgkin's lymphoma (DLBCL) with untreated CD20+ receptor (CD20+). Defined by the local Haematopathologist at the local laboratory according to World Health Organization (WHO) criteria
- Stage II-III or IV or stage I with bulk defined by the referring physician on the basis of the Cotswolds modification of the Ann Arbor classification 2
- Age-adjusted International Prognostic Index (IPI) score 0 or 1
- Age ≥18 to ≤65 years of age
Key exclusion criteria (22 listed)
- Life expectancy of less than three months
- Any other lymphoma other than CD20+ DLBCL
- Indolent lymphoma, Primary central nervous system (CNS) Lymphoma or gastro-intestinal Mucosa Associated Lymphoid Tissue (MALT) Lymphoma
- Known hypersensitivity to active ingredients, excipients and murine and foreign proteins
- Concurrent disease or general status that would exclude giving the treatment as outlined in the protocol
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 |
|---|---|---|
| RTXM83Also: Rituximab BiosimilarRituximab biosimilar (RTXM83) will be administered in combination with CHOP chemotherapy regimen (Cyclophosphamide 750 mg/m2, Doxorubicin 50 mg/m2 and Vincristine 1.4 mg/m2 up to a maximum of 2 mg on Day 1 plus Prednisone 40 mg/m2 or 100 mg per day from Day 1 to 5) at a dose of 375 mg/m2 on Day 1 of each 3 week cycle, for 6 cycles, although the administration of 2 additional cycles may be allowed. | Biological | RTXM83 |
| MabtheraAlso: Reference rituximabMabthera will be administered in combination with CHOP chemotherapy regimen (Cyclophosphamide 750 mg/m2, Doxorubicin 50 mg/m2 and Vincristine 1.4 mg/m2 up to a maximum of 2 mg on Day 1 plus Prednisone 40 mg/m2 or 100 mg per day from Day 1 to 5) at a dose of 375 mg/m2 on Day 1 of each 3 week cycle, for 6 cycles, although the administration of 2 additional cycles may be allowed. | Biological | MabThera |
Primary outcome
Response Rate (RR) Achieved After Cycle 6 With RTXM83 Plus CHOP Compared to the RR Obtained With Mabthera® Plus CHOP (R-CHOP) in Patients With DLBCL
Time frame: Tumor response assessed after Cycle 6 or at the end of treatment
Per International Working Group (IWG) revised criteria for Malignant Lymphomas (Cheson et al. 2007) and assessed by positron-emission tomography scan, or by computed tomography scan and/or magnetic resonance imaging if Positron Emission Tomography (PET) scan was not feasible. Tumor response was classified according to the International Working Group criteria, as Complete Remission (CR): Complete disappearance of all detectable clinical evidence of disease and disease-related symptoms if present before therapy; Partial Response (PR): At least a 50% decrease in sum of the product of the diameters of up to six of the largest dominant nodes or nodal masses; Stable disease (SD) or; Progressive disease. Response rate was the sum of CR and PR.
8 secondary outcomes
AUC 0-∞ (h μg/mL) at Cycle 1 of RTXM83 and Mabthera®
Time frame: Cycle 1 (first dose): Day 1 (pre-dose, mid-infusion), Day 8 and Day 15
AUC 0-∞ (h μg/mL) at Cycle 6 of RTXM83 and Mabthera®
Time frame: Cycle 6 (last dose): Day 1, Day 8, Day 15 and Day 21
Cmax (μg/mL) at Cycle 1 of RTXM83 and Mabthera®
Time frame: Cycle 1 (first dose): Day 1 (pre-dose, mid-infusion), Day 8 and Day 15
Cmax (μg/mL) at Cycle 6 of RTXM83 and Mabthera®
Time frame: Cycle 6 (last dose): Day 1, Day 8, Day 15 and Day 21
Percentage Change From Baseline in Pharmacodynamic (PD) Markers (CD19+ and CD20+ Cells) Blood Counts of RTXM83 and Mabthera®
Time frame: Up to follow-up 3 (FU3); 9 months after last dose of treatment
Comparable Safety Profile in Both Treatment Arms
Time frame: Up to FU3; 9 months after last dose of treatment
Comparable Immunogenicity Profile Between RTXM83 and Mabthera®
Time frame: Up to FU3; 9 months after last dose of treatment
Event Free Survival (EFS) in RTXM83 Arm and Mabthera® Arm
Time frame: Up to FU3; 9 months after last dose of treatment
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 26 Sep 2019.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
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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. This study is not recruiting at the moment.
Susana Millán, Phd study director
mAbxience Research S.L.
87 sites in 12 countries: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing RTXM83 and Mabthera in people with Diffuse Large B-cell Lymphoma, run by mAbxience Research S.L. at 87 sites in 12 countries.
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 9 inclusion and 22 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: finished, as of the sponsor's last update on 26 Sep 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 87 sites in Brazil, Argentina, Russia, India, Philippines and 7 more countries. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 26 Sep 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Response Rate (RR) Achieved After Cycle 6 With RTXM83 Plus CHOP Compared to the RR Obtained With Mabthera® Plus CHOP (R-CHOP) in Patients With DLBCL (time frame: Tumor response assessed after Cycle 6 or at the end of treatment). 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 26 Sep 2019; AzTrials last refreshed its copy on 26 Oct 2026.