Clinical trial • Phase II/III • Oncology

ODRONEXTAMAB for Relapsed and refractory B-cell non-Hodgkin lymphoma

Phase II/III trial of ODRONEXTAMAB for Relapsed and refractory B-cell non-Hodgkin lymphoma. None/Not specified-controlled, adaptive. 187 participants.

Overview

Trial Therapeutic Area
Oncology
Trial Disease
Relapsed and refractory B-cell non-Hodgkin lymphoma
Trial Stage
Phase II/III
Drug Modality
Bispecific antibody | ADC | Monoclonal antibody | Cell therapy | Small molecule
Paediatric Trial
Yes
Orphan Drug
Yes

Key dates

Initial CTIS Submission Date
15-04-2025
First CTIS Authorization Date
11-08-2025

Trial design

None/Not specified-controlled, adaptive Phase II/III trial in Austria, Belgium, Sweden and others.

Comparator
None/Not specified
Adaptive
True, Adaptive prospective platform trial with an initial efficacy stage and potential expansion stage to provide confirmatory analysis
Target Sample Size
187

Eligibility

Recruits 187 paediatric patients.

Pregnancy Exclusion
Patients who are pregnant or breastfeeding (exclusively or partially)
Vulnerable Population
Includes children and adolescents (from birth to ≤25 years). Written informed consent given by patient and/or parents/legal representative. Age-appropriate subject information sheets and informed consent forms (SIS and ICF) are provided for multiple paediatric age groups and for parents/legal representatives; assent and parent/guardian consent processes are implemented according to age group.

Inclusion criteria

  • {"criterion_text":"- Histologically proven mature high-grade B-NHL classified according to either: o\tthe 5th edition of the World Health Organisation (WHO) Classification of Haematolymphoid Tumours (WHO-HAEM5), 2022 (diffuse large B-cell lymphoma - not otherwise specified (DLBCL - NOS), high-grade B-cell lymphoma with MYC and BCL-2 rearrangements, primary mediastinal large B-cell lymphoma, Burkitt’s lymphoma, and high-grade B-cell lymphoma - NOS) at initial diagnosis; or o\tthe revised 4th edition of the WHO Classification of Tumours of Haematopoietic and Lymphoid Tissue, 2017 (diffuse large B-cell lymphoma (DLBCL), Burkitt lymphoma/leukaemia or Burkitt-like lymphoma with 11q aberration, primary mediastinal large B-cell lymphoma (PMLBL), high-grade B-cell lymphoma with MYC and BCL2 and/or BCL6 rearrangements and high-grade B-cell lymphoma - NOS) at initial diagnosis"}
  • {"criterion_text":"- Radiologically and/or histologically proven B-NHL in first relapse (only one prior line of therapy) or subsequent relapse (more than one prior line of therapy) or refractory B-NHL. In the following circumstances biopsy is mandated: o\tRelapsed or refractory disease following previous targeted therapy; biopsy required to confirm continuing target positivity (see individual treatment arms for specific relevant targets), confirmed by immunohistochemistry or flow cytometry o\tRelapsed disease occurring more than two years after previous therapy; biopsy required to confirm relapsed disease o\tRelapsed or refractory disease following previous therapy within the Glo-BNHL platform; biopsy required to confirm relapsed disease o\tPartial Response (PR) to previous therapy; biopsy required to confirm active residual disease"}
  • {"criterion_text":"- Evaluable disease as per the Revised International Paediatric Non-Hodgkin Lymphoma Staging System (Appendix 9), including: o\tat least one bi-dimensionally measurable nodal lesion >1.5 cm in its longest dimension; o\tor at least one bi-dimensionally measurable extra-nodal lesion >1.0 cm in its longest dimension on computerised tomography (CT) or Magnetic Resonance Imaging (MRI); o\tor bone marrow involvement (≥25% involvement from bone marrow, if only site of disease. Any standard method of assessment is acceptable i.e. cytomorphology, flow cytometry and/or immunohistochemistry); o\tor, dependent on treatment arm, evaluable Central Nervous System (CNS) only disease (evaluable by imaging or Cerebrospinal Fluid (CSF) analysis)"}
  • {"criterion_text":"- Aged from birth to ≤25 years old at the time of trial entry"}
  • {"criterion_text":"- Performance status ≥50 using Karnofsky or Lansky performance scores"}
  • {"criterion_text":"- Life expectancy of ≥8 weeks"}
  • {"criterion_text":"- Adequate bone marrow function documented by: o\tPlatelet count ≥50 x 10^9/L (no platelet transfusion therapy within seven days prior to treatment) unless bone marrow involvement o\tAbsolute neutrophil count (ANC) ≥0.75 x 10^9/L (no granulocyte colony stimulating factor within 2 days prior to treatment) unless bone marrow involvement"}
  • {"criterion_text":"- Documented negative pregnancy test for female patients of childbearing potential within seven days prior to trial entry"}
  • {"criterion_text":"- Patients of reproductive potential must agree to use effective contraception whilst on trial treatment and for 12 months following treatment discontinuation. - o\tPatients of reproductive potential using oral hormonal contraception must use an additional barrier method such as condoms whilst on trial treatment and for 12 months following treatment discontinuation (see Appendix 2 for details)."}
  • {"criterion_text":"- Patients of reproductive potential must agree not to donate sperm or eggs whilst on trial treatment and for 12 months following treatment discontinuation"}
  • {"criterion_text":"- Written informed consent given by patient and/or parents/legal representative"}
  • {"criterion_text":"- Treatment Arm I: Patients of reproductive potential must agree not to donate sperm or eggs whilst on trial treatment and for 6 months following treatment discontinuation"}
  • {"criterion_text":"- Treatment Arm I: Patients of reproductive potential using oral hormonal contraception must use an additional barrier method such as condoms whilst on trial treatment and for 12 months following treatment discontinuation"}
  • {"criterion_text":"- Treatment Arm I: Adequate renal function, by measured creatinine clearance >45 ml/min (if creatinine levels are normal for the patient’s age, estimated creatinine clearance is sufficient. This must be estimated using the Cockroft-Gault Equation)"}
  • {"criterion_text":"- Treatment Arm I: Adequate hepatic function documented by: o\tAlanine aminotransferase (ALT) ≤5 x upper limit of normal (ULN); if ALT not measured, aspartate aminotransferase (AST) ≤5 x ULN (ALT or AST <5 x ULN if attributed to lymphoma infiltration of liver) o\tTotal bilirubin ≤1.5 x ULN \tPatients with known Gilbert syndrome will be excluded if the total bilirubin value is >4 x ULN for the local general population"}
  • {"criterion_text":"- Treatment Arm I: Patients who have received CAR T-cell therapy or other cellular therapies more than 28 days prior must demonstrate recovery from acute toxicities and have measurable disease"}
  • {"criterion_text":"- Treatment Arm II: Adequate renal function, by measured glomerular filtration rate (GFR) >60 ml/min/1.73 m^2 (estimated GFR may alternatively be used, but must be based on cystatin C)"}
  • {"criterion_text":"- Treatment Arm II: Adequate hepatic function documented by: o\tAlanine aminotransferase (ALT) ≤2.5 x upper limit of normal (ULN); if ALT not measured, aspartate aminotransferase (AST) ≤2.5 x ULN (ALT or AST <5 x ULN if attributed to lymphoma infiltration of liver) o\tAlkaline phosphatase (ALP) ≤ 2.5 x ULN (<5 x ULN if attributed to lymphoma infiltration of liver) o\tTotal bilirubin ≤1.5 x ULN \tPatients with known Gilbert syndrome will be excluded if the total bilirubin value is >4 x ULN for the local general population"}

Exclusion criteria

  • {"criterion_text":"- B-cell Acute Lymphoblastic Leukaemia (B-ALL)/B-cell Lymphoblastic Lymphoma (B-LBL)"}
  • {"criterion_text":"- Uncontrolled concomitant infection. Severe infection (such as sepsis, pneumonia, etc.) should be clinically controlled at the time of trial entry"}
  • {"criterion_text":"- Known HIV positivity"}
  • {"criterion_text":"- Hepatitis B carrier status, history of Hepatitis B Virus or positive serology. A patient is considered as a Hepatitis B Virus carrier or to have (had) Hepatitis B Virus infection in case of: o\tUnimmunized and HBsAg and/or anti-HBs antibody and/or anti-HBc antibody positive, or o\tImmunized and HBsAg and/or anti-HBc antibody positive"}
  • {"criterion_text":"- Live vaccine within 28 days prior to trial entry"}
  • {"criterion_text":"- Known history of hypersensitivity to any of the treatments or excipients"}
  • {"criterion_text":"- Treatment Arm I: Central Nervous System (CNS) only disease"}
  • {"criterion_text":"- Treatment Arm I: Patients within 28 days of any CAR-T cell therapy or other cellular therapies"}
  • {"criterion_text":"- Treatment Arm I: Patients within 90 days of receiving craniospinal irradiation"}
  • {"criterion_text":"- Treatment Arm I: Left ventricular shortening fraction (LVSF) <27% or left ventricular ejection fraction (LVEF) <50%, as determined by ECHO or MUGA, any evidence of pericardial effusion (except trace or physiological) as determined by an ECHO, and any clinically significant arrhythmias"}
  • {"criterion_text":"- Treatment Arm I: Known CD20 negative disease at initial diagnosis"}
  • {"criterion_text":"- Patients with post-transplant lymphoproliferative disorder (PTLD)"}
  • {"criterion_text":"- Treatment Arm I: Seizure within the last 12 months"}
  • {"criterion_text":"- Treatment Arm I: Prior treatment with CD20 x CD3 bispecific therapy"}
  • {"criterion_text":"- Treatment Arm I: Known hypersensitivity to both allopurinol and rasburicase"}
  • {"criterion_text":"- Treatment Arm II: Patients aged <6 months old at the time of trial entry"}
  • {"criterion_text":"- Treatment Arm II: Patients within 42 days of any CAR-T cell therapy or other cellular therapies"}
  • {"criterion_text":"- Treatment Arm II: Clinically significant (Grade ≥2) third space fluid accumulation (i.e. ascites requiring drainage or pleural effusion that is either requiring drainage or associated with shortness of breath)"}
  • {"criterion_text":"- Treatment Arm II: Steroid treatment for more than a total of seven days in the 14 days prior to trial entry"}
  • {"criterion_text":"- Treatment Arm II: Severe heart failure (New York Heart Association Class IV) or severe, uncontrolled cardiac disease"}
  • {"criterion_text":"- Patients with primary CNS lymphoma"}
  • {"criterion_text":"- Patients within: o\t90 days after an allogenic HSCT procedure o\t45 days after an autologous HSCT procedure o\tPatients within 28 days of systemic therapy and/or immunosuppressive treatment for Graft versus Host Disease (GvHD) o\t14 days of previous investigational treatment o\t28 days of receiving craniospinal radiation, unless otherwise specified in the treatment arm specific eligibility criteria; or 14 days of any other radiation"}
  • {"criterion_text":"- Patients who have ongoing acute toxicities from most recent lymphoma directed therapy (any toxicity ≥ grade 3 not otherwise defined in the exclusion criteria)"}
  • {"criterion_text":"- Patients who have received any cytoreductive or other chemotherapy in the last 7 days prior to trial entry"}
  • {"criterion_text":"- Patients with known DNA repair disorder or known primary immunodeficiency"}
  • {"criterion_text":"- Patients who are pregnant or breastfeeding (exclusively or partially)"}
  • {"criterion_text":"- Patients for whom non-compliance with treatment, trial procedures, or protocol follow up schedule is expected and all available resources to facilitate inclusion have been exhausted"}

Endpoints

Primary endpoints

  • {"endpoint_text":"- Treatment Arm I: BsAb: Occurrence of an objective response (OR) i.e. Complete Response (CR) or Partial Response (PR) after 12 weeks of treatment assessed by Independent Central Review (according to International Paediatric Non-Hodgkin Lymphoma Response Criteria)","definition_or_measurement_approach":"Occurrence of CR or PR after 12 weeks assessed by Independent Central Review according to International Paediatric Non-Hodgkin Lymphoma Response Criteria"}
  • {"endpoint_text":"- Treatment Arm II: ADC with standard chemotherapy: Occurrence of CR within a maximum of three cycles of treatment assessed by Independent Central Review (according to International Paediatric Non-Hodgkin Lymphoma Response Criteria)","definition_or_measurement_approach":"Occurrence of CR within up to three cycles assessed by Independent Central Review according to International Paediatric Non-Hodgkin Lymphoma Response Criteria"}

Secondary endpoints

  • {"endpoint_text":"- Event-free survival time (EFS)","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Progression-free survival time (PFS)","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Overall survival time (OS)","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Best overall response (BOR) during treatment","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Duration of response (DOR)","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Occurrence of an objective response (OR), where relevant","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Occurrence of adverse events of special interest (AESI)","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Occurrence of treatment emergent adverse events (TEAEs), where relevant","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Pharmacokinetic profile of novel agent, where relevant","definition_or_measurement_approach":""}
  • {"endpoint_text":"- Pharmacodynamic markers, where relevant","definition_or_measurement_approach":""}

Recruitment

Registry Or Advocacy Recruitment
True, ITCC (additional registry) | Fight Kids Cancer | Cancer Research UK
Planned Sample Size
187
Recruitment Window Months
103
Consent Approach
Written informed consent given by patient and/or parents/legal representative. Age-appropriate subject information sheets and informed consent forms are available for multiple paediatric age groups (child and adolescent versions) and for parents/legal representatives; documentation is provided in multiple country-specific languages and formats (examples in repository: EN, NL, FR, DE, ES, SE as per submitted SIS/ICF documents).

Geography

Total Number Of Sites
10
Total Number Of Participants
37

Austria

Earliest CTIS Part Ii Submission Date
21-07-2025
Latest Decision Or Authorization Date
11-08-2025
Processing Time Days
21
Number Of Sites
1
Number Of Participants
7

Sites

Site Name
St. Anna Kinderspital GmbH
Department Name
Pediatric Hematology and Oncology
Principal Investigator Name
Andishe Attarbaschi
Principal Investigator Email
andishe.attarbaschi@stanna.at
Contact Person Name
Andishe Attarbaschi
Contact Person Email
andishe.attarbaschi@stanna.at

Belgium

Earliest CTIS Part Ii Submission Date
15-05-2025
Latest Decision Or Authorization Date
11-08-2025
Processing Time Days
88
Number Of Sites
1
Number Of Participants
2

Sites

Site Name
Katholieke Universiteit te Leuven
Department Name
Pediatric haemato oncology
Principal Investigator Name
Anne Uyttebroeck
Principal Investigator Email
Anne.uyttebroeck@uzleuven.be
Contact Person Name
Anne Uyttebroeck
Contact Person Email
Anne.uyttebroeck@uzleuven.be

Sweden

Earliest CTIS Part Ii Submission Date
14-07-2025
Latest Decision Or Authorization Date
11-08-2025
Processing Time Days
28
Number Of Sites
1
Number Of Participants
7

Sites

Site Name
Sahlgrenska University Hospital-Vaestra Goetalandsregionen
Department Name
Department of Paediatrics
Principal Investigator Name
Karin Mellgren
Principal Investigator Email
karin.mellgren@vgregion.se
Contact Person Name
Karin Mellgren
Contact Person Email
karin.mellgren@vgregion.se

Netherlands

Earliest CTIS Part Ii Submission Date
30-07-2025
Latest Decision Or Authorization Date
18-08-2025
Processing Time Days
19
Number Of Sites
1
Number Of Participants
7

Sites

Site Name
Prinses Maxima Centrum voor Kinderoncologie B.V.
Department Name
Hematology
Principal Investigator Name
Erica Brivio
Principal Investigator Email
e.b.brivio@prinsesmaximacentrum.nl
Contact Person Name
Erica Brivio

France

Earliest CTIS Part Ii Submission Date
12-01-2026
Latest Decision Or Authorization Date
16-02-2026
Processing Time Days
35
Number Of Sites
3
Number Of Participants
7

Sites

Site Name
Institut Gustave Roussy
Department Name
Children and adolescent oncology department
Principal Investigator Name
Charlotte Rigaud
Principal Investigator Email
charlotte.rigaud@gustaveroussy.fr
Contact Person Name
Charlotte Rigaud
Site Name
CHU de Bordeaux, groupe hospitalier Pellegrin, Hopital des Enfants
Department Name
Pediatric hematology and oncology
Principal Investigator Name
Stéphane Ducassou
Principal Investigator Email
stephane.ducassou@chu-bordeaux.fr
Contact Person Name
Stéphane Ducassou
Site Name
Institut d'hématologie et d'oncologie pédiatrique, Hospices Civils de Lyon
Department Name
Pediatric oncology
Principal Investigator Name
Nathalie Garnier
Principal Investigator Email
Nathalie.garnier@ihope.fr
Contact Person Name
Nathalie Garnier
Contact Person Email
Nathalie.garnier@ihope.fr

Spain

Earliest CTIS Part Ii Submission Date
18-12-2025
Latest Decision Or Authorization Date
16-02-2026
Processing Time Days
60
Number Of Sites
3
Number Of Participants
7

Sites

Site Name
Hospital Universitario La Paz
Department Name
Pediatric Oncology
Principal Investigator Name
Pilar Guerra
Principal Investigator Email
pilar.guerra@salud.madrid.org
Contact Person Name
Pilar Guerra
Contact Person Email
pilar.guerra@salud.madrid.org
Site Name
Hospital Sant Joan De Deu Barcelona
Department Name
Pediatric Oncology
Principal Investigator Name
Verónica De Celis
Principal Investigator Email
veronicapaola.celis@sjd.es
Contact Person Name
Verónica De Celis
Contact Person Email
veronicapaola.celis@sjd.es
Site Name
Hospital Universitario Y Politecnico La Fe
Department Name
Pediatric Oncology
Principal Investigator Name
Mª del Mar Andres
Principal Investigator Email
andres_mdm@gva.es
Contact Person Name
Mª del Mar Andres
Contact Person Email
andres_mdm@gva.es

Sponsor

Primary sponsor

Full Name
The University Of Birmingham
Organisation Type
Educational Institution
Country Of Registered Address
United Kingdom

Contract research organisations

Name
Premier Research Group Limited
Responsibilities
sponsorDuties codes: ["1"]

Third parties

  • {"country":"United Kingdom","full_name":"Premier Research Group Limited","duties_or_roles":"sponsorDuties codes: [\"1\"]","organisation_type":"Pharmaceutical company"}
  • {"country":"United States","full_name":"Medidata Solutions Inc.","duties_or_roles":"sponsorDuties codes: [\"3\",\"7\"]","organisation_type":"Non-Pharmaceutical company"}
  • {"country":"Switzerland","full_name":"ADC Therapeutics SA","duties_or_roles":"sponsorDuties codes: [\"14\",\"4\"]","organisation_type":"Pharmaceutical company"}
  • {"country":"Netherlands","full_name":"Prinses Maxima Centrum voor Kinderoncologie B.V.","duties_or_roles":"sponsorDuties codes: [\"15\"] (value: National Coordinating Centre)","organisation_type":"Hospital/Clinic/Other health care facility"}
  • {"country":"United States","full_name":"Regeneron Pharmaceuticals Inc.","duties_or_roles":"sponsorDuties codes: [\"14\",\"4\"]","organisation_type":"Pharmaceutical company"}
  • {"country":"Austria","full_name":"St. Anna Childrens Cancer Research Institute GmbH","duties_or_roles":"sponsorDuties codes: [\"15\"] (value: National Coordinating Centre)","organisation_type":"Pharmaceutical company"}
  • {"country":"Sweden","full_name":"Sahlgrenska University Hospital-Vaestra Goetalandsregionen","duties_or_roles":"sponsorDuties codes: [\"15\"] (value: National Coordinating Centre)","organisation_type":"Hospital/Clinic/Other health care facility"}
  • {"country":"Belgium","full_name":"UZ Leuven","duties_or_roles":"sponsorDuties codes: [\"15\"] (value: National Coordinating Centre)","organisation_type":"Hospital/Clinic/Other health care facility"}

Investigational products

Investigational Product Name
Odronextamab
Active Substance
ODRONEXTAMAB
Modality
Bispecific antibody
Routes Of Administration
INTRAVENIOUS INFUSION
Route
Intravenous infusion
Maximum Dose
320 mg
Investigational Product Name
Zynlonta 10 mg powder for concentrate for solution for infusion
Active Substance
LONCASTUXIMAB TESIRINE
Modality
ADC
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Authorisation Status
EU/1/22/1695/001
Maximum Dose
175 µg/Kg
Investigational Product Name
RITUXIMAB
Active Substance
RITUXIMAB
Modality
Monoclonal antibody
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Orphan Designation
Yes
Maximum Dose
375 mg/m2
Investigational Product Name
ETOPOSIDE
Active Substance
ETOPOSIDE
Modality
Small molecule
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Maximum Dose
100 mg/m2
Investigational Product Name
CARBOPLATIN
Active Substance
CARBOPLATIN
Modality
Small molecule
Routes Of Administration
INTRAVENIOUS INFUSION
Route
Intravenous infusion
Maximum Dose
635 mg/m2
Investigational Product Name
IFOSFAMIDE
Active Substance
IFOSFAMIDE
Modality
Small molecule
Routes Of Administration
INTRAVENOUS INFUSION
Route
Intravenous infusion
Maximum Dose
3 gm/m2
Investigational Product Name
DEXAMETHASONE
Active Substance
DEXAMETHASONE
Modality
Small molecule
Routes Of Administration
ORAL / INTRAVENOUS INFUSION
Route
Oral or Intravenous
Maximum Dose
20 mg/m2
Investigational Product Name
CAR T-cell therapy
Modality
Cell therapy
Combination Treatment
Yes

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