A Clinical Trial of LBL-024 Combined With Etoposide and Platinum in Patients With Advanced Neuroendocrine Carcinoma

March 10, 2026 updated by: Nanjing Leads Biolabs Co.,Ltd

An Open-label, Multicenter Phase Ib/II Clinical Study to Evaluate the Safety and Efficacy of LBL-024 Combined With Etoposide and Platinum in the First-line Treatment of Patients With Advanced Neuroendocrine Carcinoma (NEC)

An open-label, multicenter phase Ib/II clinical study to evaluate the safety and efficacy of LBL-024 combined with etoposide and platinum in the first-line treatment of patients with advanced neuroendocrine carcinoma (NEC)

Study Overview

Detailed Description

This trial includes two parts: phase Ib and phase II study. Phase Ib is a dose-escalation and Phase II is the dose optimization and dose expansion .

Phase Ib program to enroll patients with advanced neuroendocrine carcinoma (NEC) without systemic therapy.To sequentially evaluate the safety and tolerability of LBL-024 in combination with etoposide and platinum (cisplatin or carboplatin) at different doses by the dose-escalation method.

Phase II includes two stages, dose optimization and dose expansion.

The dose optimization part will conduct combination of LBL-024, which is a further optimization study in two dose groups, enrolling patients with EP-NEC who have not received systemic treatment, to fully assess the dose-exposure-effect relationship, and in combination with the target binding characteristics of LBL-024, pharmacokinetic/pharmacodynamic, efficacy and/or safety profile, considering multiple dimensions,To confirm the rationale for the recommended Phase 2 dose (RP2D).

The dose expansion:the recommended Phase 2 dose (RP2D) will be determined based on the safety, tolerability, efficacy and PK data from the clinical studies of LBL-024.After obtaining the RP2D, a dose expansion study of combination dosing at the RP2D will be conducted to obtain adequate efficacy data.

This trial will enroll 178 patients in Phase Ib and Phase II study.

Study Type

Interventional

Enrollment (Estimated)

178

Phase

  • Phase 2
  • Phase 1

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

    • Anhui
      • Hefei, Anhui, China, 230001
      • Hefei, Anhui, China, 230031
    • Beijing Municipality
      • Beijing, Beijing Municipality, China, 100142
      • Beijing, Beijing Municipality, China, 100070
    • Chongqing Municipality
      • Chongqing, Chongqing Municipality, China, 400030
        • Recruiting
        • Chongqing University Cancer Hospital
        • Contact:
    • Fujian
      • Fuzhou, Fujian, China, 350014
    • Guangdong
      • Guangzhou, Guangdong, China, 510080
        • Recruiting
        • The First Affiliated Hospital of Guangdong Pharmaceutical University
        • Contact:
      • Guangzhou, Guangdong, China, 510060
        • Recruiting
        • Sun Yat-sen University Cancer Center (SYSUCC)
        • Contact:
    • Guangxi
      • Nanning, Guangxi, China, 530021
        • Recruiting
        • Guangxi Medical University Cancer Hospital
        • Contact:
    • Heilongjiang
      • Harbin, Heilongjiang, China, 150081
        • Recruiting
        • Harbin medical university cancer hospital
        • Contact:
    • Henan
      • Luoyang, Henan, China, 471003
        • Recruiting
        • The first affiliated hospital of Henan University of science and technology
        • Contact:
      • Zhengzhou, Henan, China, 450008
    • Hubei
      • Wuhan, Hubei, China, 430079
      • Xiangyang, Hubei, China, 441000
    • Jiangxi
      • Nanchang, Jiangxi, China, 330006
        • Recruiting
        • The First Affiliated Hospital of NanChang University
        • Contact:
    • Liaoning
      • Shenyang, Liaoning, China, 110801
    • Shandong
      • Jinan, Shandong, China, 250063
        • Recruiting
        • Qilu Hospital of Shandong University
        • Contact:
      • Jinan, Shandong, China, 250117
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200032
        • Recruiting
        • Fudan University Shanghai Cancer Center
        • Contact:
    • Shanxi
      • Taiyuan, Shanxi, China, 030013
    • Sichuan
      • Chengdu, Sichuan, China, 610044
        • Recruiting
        • West China Hospital of Sichuan University
        • Contact:
    • Zhejiang
      • Hangzhou, Zhejiang, China, 310022
      • Hangzhou, Zhejiang, China, 310003
        • Recruiting
        • The First Affiliated Hospital Zhejiang University School of Medicine
        • Contact:
      • Hangzhou, Zhejiang, China, 310003
        • Recruiting
        • The Second Affiliated Hospital, Zhejiang University School of Medicine
        • Contact:
      • Hangzhou, Zhejiang, China, 310016
        • Recruiting
        • Sir Run Run Shaw Hospital,Zhejiang University School of Medicine
        • Contact:

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:

  1. Agree to follow the trial treatment regimen and visit schedule, voluntarily enroll, and sign the written informed consent.
  2. aged 18-75 years (including borderline values) at the time of signing the informed consent form
  3. The Eastern Cooperative Oncology Group's physical status scoring standard (ECOG) is 0~1.
  4. The expected survival time is at least 12 weeks.
  5. According to the evaluation of RECIST 1.1 (Response Evaluation Criteria in Solid Tumours),the subjects enrolled have at least one measurable target lesion.
  6. Fertile men and women of childbearing age are willing to take effective contraceptive measures from the signing of the informed consent form to 6 months after the last dose of the investigational drug; women of childbearing age include premenopausal women and women who had menopause less than two years ago. Blood pregnancy test results must be negative for women of childbearing age within 7 days prior to the initial dose of the investigational drug.

Exclusion Criteria:

  1. Subjects who underwent major organ surgery (excluding needle biopsy) or significant trauma within 4 weeks prior to the initial use of the investigational drug, or require elective surgery during the trial period
  2. Use of immunomodulatory drugs within 14 days prior to the initial use of the investigational drug, including but not limited to thymosin, interleukin, and interferon
  3. Subjects with an active infection that currently requires intravenous anti-infective therapy.
  4. Clinically uncontrollable pleural effusion, pericardial effusion, and requiring repeated drainage or medical intervention.
  5. medical history of immunodeficiency including HIV antibody positive.
  6. Pregnant or lactating women.
  7. The investigator believes that the subject has other conditions that may affect compliance or that are not suitable for participating 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: LBL-024+Etoposide+Carboplatin/Cisplatin

LBL-024+Etoposide+Carboplatin/Cisplatin

Intravenous infusion.

intravenous infusion
Other Names:
  • LBL-024
intravenous infusion
Other Names:
  • Etoposide
intravenous infusion
Other Names:
  • Carboplatin
intravenous infusion
Other Names:
  • Cisplatin
Active Comparator: Atezolizumab+Etoposide+Carboplatin

Atezolizumab+Etoposide+Carboplatin

Intravenous infusion.

intravenous infusion
Other Names:
  • Etoposide
intravenous infusion
Other Names:
  • Carboplatin
intravenous infusion
Other Names:
  • Atezolizumab

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Dose-limiting toxicities(DLT)
Time Frame: Within 3 weeks after receiving the first dose of the test drug (DLT assessment for subjects in dose escalation phase).
DLT describes side effects of a drug or other treatment that are serious enough to prevent an increase in dose or level of that treatment. It was used to evaluate the safety in Phase Ib.
Within 3 weeks after receiving the first dose of the test drug (DLT assessment for subjects in dose escalation phase).
Objective Response Rate (ORR)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).
ORR (including the rates of complete response (CR) and partial response (PR)), evaluated based on the RECIST 1.1, refers to the percentage of study subjects who achieve a complete response or partial response. It was used to evaluate the efficacy in Phase II .
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).
Progression-Free Survival(PFS)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).
PFS is defined as the time from randomization to disease progression or death from any cause.It was used to evaluate the efficacy in Phase II .
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).
Occurrence of adverse event (AE) and serious adverse event (SAE)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (90 days after drug withdrawal or before the start of new anti-tumor therapy)
Adverse event (AE) will be graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) 5.0.The safety profile of LBL-024 Combination Administration will be assessed by monitoring the adverse event (AE) and serious adverse event (SAE) in Phase Ib study.
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (90 days after drug withdrawal or before the start of new anti-tumor therapy)
The recommended Phase 2 dose (RP2D)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).
The recommended Phase 2 dose (RP2D) will be determined comprehensively based on the safety, tolerability, efficacy and PK data from the clinical studies of LBL-024 in advance.
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy).

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Cmax
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
Maximum serum concentration
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
Tmax
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
After taking a single dose, Time to reach maximum plasma concentration
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
immunogenicity
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
The immunogenicity is evaluated by the incidence of anti-drug antibodies (ADA) and neutralizing antibodies (if applicable) in subjects
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
Duration of Response(DOR)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
The period from the participants first achieving CR or PR to disease progression.
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy
Disease Control Rate(DCR)
Time Frame: From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy)
Percentage of participants achieving CR, PR, iCR, iPR and stable disease (SD) after treatment.
From all subjects signed the informed consent form up to the completion of the follow-up period of drug withdrawal (28 days after drug withdrawal or before the start of new anti-tumor therapy)

Collaborators and Investigators

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

Investigators

  • Principal Investigator: Lin Shen, Peking University Cancer Hospital & Institute

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 (Actual)

December 8, 2023

Primary Completion (Estimated)

December 28, 2026

Study Completion (Estimated)

March 28, 2027

Study Registration Dates

First Submitted

November 27, 2023

First Submitted That Met QC Criteria

November 27, 2023

First Posted (Actual)

December 6, 2023

Study Record Updates

Last Update Posted (Actual)

March 12, 2026

Last Update Submitted That Met QC Criteria

March 10, 2026

Last Verified

March 1, 2026

More Information

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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