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A Phase III, multi-center, open-label, randomised, controlled trial of intravenous obrixtamig in combination with carboplatin and etoposide vs. carboplatin and etoposide as first-line therapy in DLL3-positive patients with unresectable locally advanced or metastatic extrapulmonary neuroendocrine carcinomas.

Status
Not yet recruiting
Phases
Phase 3
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2025-523869-22-00
Enrollment
86
Registered
2026-05-13
Start date
Unknown
Completion date
Unknown
Last updated
2026-05-14

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

Conditions

advanced or metastatic extrapulmonary neuroendocrine carcinoma

Brief summary

Overall survival (OS), defined as the time from randomisation until death from any cause

Detailed description

PFS is defined as the time from randomisation until the earliest date of disease progression according to RECIST 1.1 based on investigator assessments or death from any cause, whichever occurs first, Change from baseline to Week 19 in the physical functioning domain of the EORTC QLQ-C30, Objective response (OR) is defined as a best overall response of complete response (CR) or partial response (PR) according to RECIST 1.1 (based on investigator assessments) from randomisation until the earliest date of disease progression, death, last evaluable tumour assessment before the start of next line of anti-cancer treatment, loss to follow-up, or withdrawal of consent, DoR, defined as the time from the first documented OR according to RECIST 1.1 until the earliest date of disease progression or death among patients with objective response based on investigator assessments, Disease control (DC), defined as best overall response of complete response (CR) or partial response (PR) or stable disease (SD) where best overall response is defined according to RECIST 1.1 based on investigator assessments from randomisation until the earliest of disease progression, death or last evaluable tumour assessment before start of next line of anti-cancer treatment, loss to follow-up or withdrawal of consent, Occurrence of treatment-emergent Grade 3 or greater CRS, Occurrence of treatment-emergent Grade 3 or greater ICANS, Occurrence of treatment-emergent AEs leading to permanent discontinuation of trial medication during the on-treatment period, Occurrence of treatment-emergent AEs leading to dose modification of trial medication (i.e. dose interruption, dose delay, dose reduction)

Interventions

DRUGCarboplatin Hikma 10 mg/ml Konzentrat zur Herstellung einer Infusionslösung

Sponsors

Boehringer Ingelheim International GmbH, Boehringer Ingelheim Espana S.A.
Lead SponsorINDUSTRY

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Design outcomes

Primary

MeasureTime frame
Overall survival (OS), defined as the time from randomisation until death from any cause

Secondary

MeasureTime frame
PFS is defined as the time from randomisation until the earliest date of disease progression according to RECIST 1.1 based on investigator assessments or death from any cause, whichever occurs first, Change from baseline to Week 19 in the physical functioning domain of the EORTC QLQ-C30, Objective response (OR) is defined as a best overall response of complete response (CR) or partial response (PR) according to RECIST 1.1 (based on investigator assessments) from randomisation until the earliest date of disease progression, death, last evaluable tumour assessment before the start of next line of anti-cancer treatment, loss to follow-up, or withdrawal of consent, DoR, defined as the time from the first documented OR according to RECIST 1.1 until the earliest date of disease progression or death among patients with objective response based on investigator assessments, Disease control (DC), defined as best overall response of complete response (CR) or partial response (PR) or stable diseas

Outcome results

None listed

Source: EU CTIS · Data processed: May 15, 2026