A Clinical Study of SCTB41 Combined With Docetaxel in Patients With Previously Treated Locally Advanced or Metastatic Non-Small Cell Lung Cancer（Phase II Study Ongoing）

May 19, 2026 updated by: Sinocelltech Ltd.

A Phase II/III Study of SCTB41 Plus Docetaxel vs Placebo Plus Docetaxel in Previously Treated Locally Advanced or Metastatic Non-Small Cell Lung Cancer

This study aims to evaluate the safety and efficacy of SCTB41 combined with docetaxel in patients with previously treated non-small cell lung cancer. The Phase II part of this study is an open-label, multicenter clinical trial.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
90

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2

Contacts and Locations

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

Study Locations

  • China
    • Hubei
      • Wuhan, Hubei, China, 430030
        • Tongji Hospital affiliated to Tongji Medical College of Huazhong University of Science & Technology
        • 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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  1. Voluntarily sign the informed consent form (ICF);
  2. ECOG 0-1;
  3. Survival duration more than 3 months;
  4. Histologically or cytologically confirmed locally advanced (Stage IIIB/IIIC) or metastatic (Stage IV) non-small cell lung cancer (NSCLC) that is not amenable to complete surgical resection and cannot receive curative concurrent/sequential chemoradiotherapy;
  5. Without AGA: Have experienced disease progression during or after prior treatment with PD-(L)1 inhibitors and chemotherapy.With AGA: Must have received adequate targeted therapy; EGFR-positive patients must have received prior treatment with PD-(L)1/VEGF bispecific antibody and/or TROP-2 ADC;
  6. At least one measurable non-brain lesion according to RECIST v1.1;
  7. Adequate major organ function.

Exclusion Criteria:

  1. Histologically or cytologically confirmed presence of small cell carcinoma components;
  2. Prior treatment with docetaxel;
  3. Symptomatic central nervous system (CNS) metastases;
  4. Received the last dose of prior systemic anti-tumor therapy within 4 weeks before the first dose of study drug;
  5. Imaging findings at screening show tumor invasion into major blood vessels or surrounding vital organs, or the presence of a risk of esophagotracheal or esophagopleural fistula, which the investigator assesses as unsuitable for enrollment;
  6. History of hypertensive crisis or hypertensive encephalopathy; presence of uncontrolled hypertension despite medical therapy;
  7. Presence of any active autoimmune disease or history of autoimmune disease with anticipated risk of relapse;
  8. Bleeding tendency, high risk of bleeding, or coagulation disorders;
  9. Diagnosis of another malignancy;
  10. Severe infection, active infection, active tuberculosis, positive HIV antibody, active hepatitis B or hepatitis C, or known active syphilis prior to the first dose;
  11. Presence of uncontrolled pleural effusion, pericardial effusion, or ascites requiring repeated drainage;
  12. History of non-infectious pneumonitis that required systemic corticosteroid therapy, or current presence of interstitial lung disease;
  13. Prior history of allogeneic organ transplantation or allogeneic hematopoietic stem cell transplantation;
  14. Known hypersensitivity to any component of the study drug; known hypersensitivity to taxanes; or history of severe hypersensitivity reaction to any other monoclonal antibody;
  15. Pregnant or breastfeeding women;
  16. Any other condition that the investigator considers inappropriate for enrollment.

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: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: SCTB41+docetaxel
Drug: SCTB41
SCTB41 is administered at selected dose by intravenous infusion on Day 1 of each 3-week cycle
Drug: docetaxel
docetaxel is administered at selected dose by intravenous infusion on Day 1 of each 3-week cycle

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Frequency of adverse events (AEs)
Time Frame: 24 months
To investigate the safety characteristics.
24 months

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Objective response rate (ORR)
Time Frame: Up to 2 years
The ORR is defined as the proportion of subjects with confirmed CR or confirmed PR, based on RECIST Version 1.1.
Up to 2 years
Overall survival (OS)
Time Frame: Up to 2 years
Overall survival is defined as the time from the start of treatment until death due to any cause.
Up to 2 years
Disease control rate (DCR)
Time Frame: Up to 2 years
The DCR is defined as the proportion of subjects with CR, PR, or SD based on RECIST Version 1.1.
Up to 2 years
Progression-free survival (PFS)
Time Frame: Up to 2 years
The PFS is defined as the time from the start of treatment until the first documentation of disease progression or death due to any cause, whichever occurs first.
Up to 2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Sinocelltech 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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 1, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2028

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2029

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
May 14, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 19, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 27, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 27, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 19, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SCTB41-A302

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

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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