Ignite Creation Date:
2025-12-24 @ 7:32 PM
Ignite Modification Date:
2026-03-15 @ 3:22 AM
Study NCT ID:
NCT06839703
Status:
NOT_YET_RECRUITING
Last Update Posted:
2025-02-21
First Post:
2025-02-17
Is NOT Gene Therapy:
True
Has Adverse Events:
False
Brief Title:
International Phase I Trial of Dinutuximab Beta With VDC/IE in GD2-Positive Ewing Sarkoma
Sponsor:
Prof. Dr. Dirk Reinhardt
Organization:
Study Overview
Official Title:
International Open-label Phase I Dose Escalation Study of Dinutuximab Beta in Combination With Vincristine/Doxorubicin/Cyclophosphamide and Ifosfamide/Etoposide in Pediatric, Adolescent, and Adult Patients With GD2-positive Ewing Sarcoma
Status:
NOT_YET_RECRUITING
Status Verified Date:
2025-02
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
False
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
The goal of the study is to investigate the feasibility, toxicity, and biological activity of the treatment with dinutuximab beta in combination with standard chemotherapy in EWS to give high-risk patients with a GD2 positiv pumor a benefit in treatment. Within the study is tested with three different dosages in a 3+3 design with three pre-defined dose levels.
Detailed Description:
Immunotherapeutic approaches have emerged as an effective therapeutic approach in cancer. We will investigate the cell-surface ganglioside GD2 as a target since it is expressed on the cell surface of Ewing Sarcoma cells and clinical trials support the safety and efficacy of anti-GD2 antibodies in pediatric solid cancers.
Dinutuximab beta is a chimeric antibody that targets the disialoganglioside GD2. GD2 is expressed on a number of solid malignancies and was clinically investigated in pediatric patients with neuroblastoma. Expression in normal tissues is restricted to cerebellar neurons, skin melanocytes and peripheral pain fibers. Due to this expression pattern, anti-GD2 antibodies have been studied as targeted immunotherapy for neuroblastoma. With the results of these clinical trials, combination therapies with dinutuximab beta became a standard component of high-risk neuroblastoma therapy. GD2 expression is found in several EWS samples with variable expression-levels, and it is expected that anti-GD2 treatment is best suited as biomarker-driven approach.
The administration of vincristine, doxorubicin, cyclophosphamide, ifosfamide and etoposide (VDC/IE) has been shown to be an effective systemic therapy and is therefore currently part of the standard treatment in Ewing Sarcoma. The international newest standard induction chemotherapy in the standard- and high-risk group consists of alternating VDC/IE. High-risk patients with a GD2 positive tumor could benefit from an addition of dinutuximab beta to the standard chemotherapy with VDC/IE.
The rationale for this trial is to investigate the feasibility, toxicity, and biological activity of dinutuximab beta in combination with standard chemotherapy in EWS.
This is a multi-center, phase 1, open-label, dose escalation study enrolling high-risk Ewing sarcoma patients that have been tested with GD2-positivity in a classical 3+3 design.
The decision to initiate treatment with 50% of the approved dosage for neuroblastoma in this dose-escalation study is grounded in both scientific literature and safety considerations. Starting at a lower dosage allows for the careful monitoring of patient response and minimizes the risk of adverse effects, particularly in a dose-sensitive adult population.
A risk assessment further supports this approach, indicating that starting at 50% of the approved neuroblastoma dose provides a safe baseline from which to escalate. The assessment outlines that a stepwise increase to 75% and subsequently to 100% of the approved dose allows for the identification of any dose-limiting toxicities (DLTs) in a controlled manner, thus optimizing patient safety.
The choice of 100 mg/m2 as the maximum dosage per cycle, equivalent to the dosage used in standard neuroblastoma treatment, is justified by its established efficacy and safety profile in this specific indication. The literature supports that doses up to 100 mg/m2 per cycle are well-tolerated in the majority of patients, with the therapeutic benefits outweighing the risks when administered within a carefully monitored clinical framework.
Dinutuximab beta is a chimeric antibody that targets the disialoganglioside GD2. GD2 is expressed on a number of solid malignancies and was clinically investigated in pediatric patients with neuroblastoma. Expression in normal tissues is restricted to cerebellar neurons, skin melanocytes and peripheral pain fibers. Due to this expression pattern, anti-GD2 antibodies have been studied as targeted immunotherapy for neuroblastoma. With the results of these clinical trials, combination therapies with dinutuximab beta became a standard component of high-risk neuroblastoma therapy. GD2 expression is found in several EWS samples with variable expression-levels, and it is expected that anti-GD2 treatment is best suited as biomarker-driven approach.
The administration of vincristine, doxorubicin, cyclophosphamide, ifosfamide and etoposide (VDC/IE) has been shown to be an effective systemic therapy and is therefore currently part of the standard treatment in Ewing Sarcoma. The international newest standard induction chemotherapy in the standard- and high-risk group consists of alternating VDC/IE. High-risk patients with a GD2 positive tumor could benefit from an addition of dinutuximab beta to the standard chemotherapy with VDC/IE.
The rationale for this trial is to investigate the feasibility, toxicity, and biological activity of dinutuximab beta in combination with standard chemotherapy in EWS.
This is a multi-center, phase 1, open-label, dose escalation study enrolling high-risk Ewing sarcoma patients that have been tested with GD2-positivity in a classical 3+3 design.
The decision to initiate treatment with 50% of the approved dosage for neuroblastoma in this dose-escalation study is grounded in both scientific literature and safety considerations. Starting at a lower dosage allows for the careful monitoring of patient response and minimizes the risk of adverse effects, particularly in a dose-sensitive adult population.
A risk assessment further supports this approach, indicating that starting at 50% of the approved neuroblastoma dose provides a safe baseline from which to escalate. The assessment outlines that a stepwise increase to 75% and subsequently to 100% of the approved dose allows for the identification of any dose-limiting toxicities (DLTs) in a controlled manner, thus optimizing patient safety.
The choice of 100 mg/m2 as the maximum dosage per cycle, equivalent to the dosage used in standard neuroblastoma treatment, is justified by its established efficacy and safety profile in this specific indication. The literature supports that doses up to 100 mg/m2 per cycle are well-tolerated in the majority of patients, with the therapeutic benefits outweighing the risks when administered within a carefully monitored clinical framework.
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
False
Is a FDA Regulated Device?:
False
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?: