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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
Recruiting
Phases
Phase 1
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2024-515245-42-00
Acronym
CESS-GD2
Enrollment
18
Registered
2025-02-11
Start date
2025-04-24
Completion date
Unknown
Last updated
2025-05-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Ewing Sarcoma

Brief summary

The primary endpoint is the identification of the recommended phase II dose (RP2D) of dinutuximab beta in combination with vincristine, doxorubicin, and cyclophosphamide, as well as ifosfamide and etoposide, based on the evaluation of dose-limiting toxicities (DLTs), overall safety, and tolerability within the study population.

Detailed description

Progression-Free Survival (PFS): The time from the start of treatment until the first documented evidence of disease progression or death from any cause, whichever occurs first., Event-Free Survival (EFS): The time from the initiation of treatment to the occurrence of any treatment-related event, including disease progression, relapse, occurrence of a second malignancy, or death from any cause., Duration of Response (DOR): The time from the first documentation of a complete or partial response to the treatment until the first occurrence of disease progression or relapse.

Interventions

DRUGMESNA
DRUGIFOSFAMIDE
DRUGFILGRASTIM
DRUGVINCRISTINE SULFATE
DRUGDOXORUBICIN
DRUGCYCLOPHOSPHAMIDE
DRUGETOPOSIDE

Sponsors

GPOH gGmbH
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
0 Years to No maximum

Design outcomes

Primary

MeasureTime frame
The primary endpoint is the identification of the recommended phase II dose (RP2D) of dinutuximab beta in combination with vincristine, doxorubicin, and cyclophosphamide, as well as ifosfamide and etoposide, based on the evaluation of dose-limiting toxicities (DLTs), overall safety, and tolerability within the study population.

Secondary

MeasureTime frame
Progression-Free Survival (PFS): The time from the start of treatment until the first documented evidence of disease progression or death from any cause, whichever occurs first., Event-Free Survival (EFS): The time from the initiation of treatment to the occurrence of any treatment-related event, including disease progression, relapse, occurrence of a second malignancy, or death from any cause., Duration of Response (DOR): The time from the first documentation of a complete or partial response to the treatment until the first occurrence of disease progression or relapse.

Countries

Austria, Czechia, Germany, Sweden

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026