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DAREON®-NEC-1: A Study in People With Advanced Extrapulmonary Neuroendocrine Cancer to Compare Obrixtamig Plus Carboplatin and Etoposide Treatment With Standard Chemotherapy

NCT07544654 · Status: NOT_YET_RECRUITING · Phase: PHASE3 · Type: INTERVENTIONAL · Enrollment: 390

Last updated 2026-05-06

No results posted yet for this study

Summary

This study is open to adults with advanced extrapulmonary neuroendocrine cancer. The purpose of this study is to find out if a study medicine called obrixtamig plus standard chemotherapy (carboplatin and etoposide) improves survival when compared to standard chemotherapy (carboplatin and etoposide) alone. Obrixtamig is an antibody-like molecule that may help the immune system fight cancer. Another purpose of the study is to test a medical device being developed to measure levels of the tumour marker delta-like ligand 3 (DLL3).

Participants are put into 2 groups randomly, which means by chance. One group (treatment arm) receives obrixtamig and standard chemotherapy followed by obrixtamig alone for up to 3 years. The other group (control arm) receives standard chemotherapy without obrixtamig for about 4 months. All treatments are given as infusions into a vein.

During the study, participants in both groups visit the study site regularly. Participants in the treatment arm stay overnight at the study site following the first 2 obrixtamig treatments. The doctors regularly check participants' health and take note of any unwanted effects. At some of the visits, doctors check the size of the tumour(s). The results are compared between the 2 groups to see whether the treatment works.

Conditions

  • Extrapulmonary Neuroendocrine Cancer

Interventions

DRUG

Obrixtamig

Obrixtamig

DRUG

Carboplatin

Carboplatin

DRUG

Etoposide

Etoposide

DEVICE

Ventana DLL3 RxDx assay

Ventana DLL3 RxDx assay

Sponsors & Collaborators

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Model
PARALLEL

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-06-15
Primary Completion
2029-12-13
Completion
2029-12-13
FDA Drug
Yes
FDA Device
Yes

Countries

  • United States
  • Argentina
  • Australia
  • Austria
  • Belgium
  • Brazil
  • Canada
  • Chile
  • China
  • Czechia
  • Denmark
  • Finland
  • France
  • Germany
  • Hong Kong
  • Israel
  • Italy
  • Japan
  • Mexico
  • Netherlands
  • New Zealand
  • Norway
  • Poland
  • Portugal
  • South Korea
  • Spain
  • Sweden
  • Taiwan
  • United Kingdom

Study Locations

More Related Trials

Entities

Drugs
Companies

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07544654 on ClinicalTrials.gov