TC-D101 Cell Therapy for Patients With DLL3-Positive SCLC

November 17, 2025 updated by: TCRCure Biopharma Ltd.

A Preliminary Exploratory Clinical Study of TC-D101 in the Treatment of DLL3-Positive Relapsed/Refractory Primary Small Cell Lung Cancer

This is a single-arm, open-label, dose-escalation clinical trial designed to evaluate the safety, tolerability, expansion, and persistence of TC-D101 CAR-T cells in patients with DLL3-positive Relapsed/Refractory primary small cell lung cancer(r/r SCLC) who have progressed after prior therapies. The primary objective is to determine the maximum tolerated dose (MTD), with a secondary aim to assess preliminary clinical efficacy in SCLC.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
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.

Detailed Description

This study is designed as a single-arm, open-label, single-dose clinical trial to evaluate the safety and efficacy of TC-D101 CAR-T cell therapy in patients with r/r SCLC. The study protocol consists of five main stages: (1) patient screening, (2) collection of peripheral blood mononuclear cells (PBMCs), (3) lymphodepletion chemotherapy, (4) TC-D101 CAR-T cell infusion, and (5) post-infusion follow-up.

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.
24

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.
  • Early 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 Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Jiangsu
      • Nanjing, Jiangsu, China
        • Recruiting
        • The Jinling Hospital
        • 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. Participants must voluntarily provide written informed consent.
  2. Aged 18-75 years (inclusive).
  3. Life expectancy ≥ 3 months.
  4. ECOG performance status 0-1.
  5. Failed or unsuitable for standard therapy.
  6. At least one measurable lesion per RECIST 1.1.
  7. DLL3-positive r/r SCLC confirmed by immunohistochemistry.
  8. Adequate organ and bone marrow function.
  9. Effective contraception required for participants of childbearing potential.
  10. Adequate venous access for leukapheresis.

Exclusion Criteria:

  1. Primary CNS malignancy or uncontrolled CNS metastases.
  2. Other malignancies within 5 years (except adequately treated non-melanoma skin cancer or carcinoma in situ).
  3. Active autoimmune disease or history of autoimmune disease.
  4. Immunodeficiency, including HIV positivity.
  5. Bleeding disorders (inherited or acquired).
  6. Clinically significant cardiovascular disease.
  7. Active infection (including tuberculosis, hepatitis B/C, syphilis).
  8. Pregnant or breastfeeding women.
  9. Clinically significant ascites . 10 Uncontrolled pleural effusion or pericardial effusion.

11. Prior cell or gene therapy. 12. Severe drug hypersensitivity history. 13. Investigator-assessed unsuitability for trial participation.

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: TC-D101 CAR-T Cell Therapy
Following lymphodepletion chemotherapy, participants will receive Following lymphodepletion chemotherapy, participants will receive TC-D101 CAR-T Cell CAR-T
Biological: TC-D101 CAR-T
TC-D101 CAR-T treatment follows a lymphodepletion Drug: Fludarabine and Cyclophosphamide.
Other Names:
  • Cyclophosphamide
  • Fludarabine

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
Safety of TC-D101 CAR-T cells
Time Frame: Up to 24 months
The incidence, type, and severity of all adverse events, serious adverse events, and abnormal laboratory findings.
Up to 24 months
Safety of TC-D101 CAR-T cells
Time Frame: Up to 1 month
Incidence of DLT
Up to 1 month

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
Efficacy of TC-D101 CAR-T cells
Time Frame: Up to 24 months
Optimal objective response rate (ORR)
Up to 24 months

Other Outcome Measures

Other Outcome Measures

For clinical trials, a planned measurement described in the protocol that is used to determine the effect of an intervention/treatment on participants. For observational studies, a measurement or observation that is used to describe patterns of diseases or traits, or associations with exposures, risk factors, or treatment. Types of outcome measures include primary outcome measure and secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
To investigate the Cmax of TC-D101 CAR-T cells in the peripheral blood after infusion
Time Frame: Up to 24 months
Up to 24 months
To assess TC-D101 CAR-T cell trafficking into tumor tissues after infusion
Time Frame: Up to 24 months
To detect TC-D101 CAR-T cell number in tumor tissues after infusion
Up to 24 months

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.
TCRCure Biopharma Ltd.

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
The Jinling Hospital

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.
November 30, 2025

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.
November 30, 2027

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.
November 30, 2028

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).
November 17, 2025

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.
November 17, 2025

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.
November 24, 2025

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.
November 24, 2025

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.
November 17, 2025

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.
November 1, 2025

More Information

Terms related to this study

Keywords

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.
  • D101-IIT-01

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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