A Study of ZG006 for Injection Versus Investigator-Selected Chemotherapy in Participants With Advanced Neuroendocrine Carcinoma

May 13, 2026 updated by: Suzhou Zelgen Biopharmaceuticals Co.,Ltd

A Phase III, Multicenter, Randomized, Open-Label, Controlled Study of ZG006 for Injection Versus Investigator-Selected Chemotherapy in Participants With Advanced Neuroendocrine Carcinoma

This Phase III, multicenter, randomized, open-label, controlled study is designed to assess the efficacy and safety of ZG006 versus investigator-selected chemotherapy in participants with DLL3-positive advanced neuroendocrine carcinoma who have received prior systemic therapy.

Study Overview

Status

Not yet recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

240

Phase

  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

  • China
    • Henan
      • Zhengzhou, Henan, China
        • The First Affiliated Hospital of Zhengzhou University
        • Contact:
          • Lijie Song

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Has provided written informed consent voluntarily after being fully informed about the study.
  • Male or female, aged 18 to 75 years (inclusive) at the time of informed consent signing.
  • Histologically or cytologically confirmed advanced neuroendocrine carcinoma (NEC); small cell lung cancer (SCLC) and combined SCLC are excluded. Additionally, the Participants with DLL3-positive NEC who have received prior systemic therapy (second-line and above)..

Exclusion Criteria:

  • Any other condition that, in the opinion of the investigator, makes the participant unsuitable for participation in this study.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Test Group
ZG006 Q2W
Biological: ZG006
ZG006 will be administered as an intravenous (IV) infusion.
Active Comparator: Control Group
Investigator-selected chemotherapy (such as FOLFIRI regimen)
Drug: 5-fluorouracil, Calcium folinate and Irinotecan
Irinotecan 180 mg/m^2, Calcium folinate 400 mg/m^2, 5-Fluorouracil: 400 mg/m^2 by intravenous infusion on Day 1; 5-Fluorouracil: 2400 mg/m^2 by continuous intravenous infusion over 46 to 48 hours， once two weeks.
Other Names:
  • FOLFIRI

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Overall Survival（OS）
Time Frame: up to approximately 4 years
Duration from the date of initial treatment to the date of death due to any cause.
up to approximately 4 years

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Progression-free Survival (PFS) (RECIST1.1)
Time Frame: up to approximately 4 years
A duration from the date of initial treatment to disease progression or death of any cause.
up to approximately 4 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Suzhou Zelgen Biopharmaceuticals Co.,Ltd

Investigators

  • Study Chair: Jason Wu, Suzhou Zelgen Biopharmaceuticals Co.,Ltd

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Estimated)

July 1, 2026

Primary Completion (Estimated)

June 1, 2028

Study Completion (Estimated)

December 1, 2028

Study Registration Dates

First Submitted

May 13, 2026

First Submitted That Met QC Criteria

May 13, 2026

First Posted (Actual)

May 19, 2026

Study Record Updates

Last Update Posted (Actual)

May 19, 2026

Last Update Submitted That Met QC Criteria

May 13, 2026

Last Verified

May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ZG006-009

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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