Phase I Trial of Combined Immune Cell Therapy for Metastatic Stage IV Solid Tumors (SDH-Combi) (SDH-Combi)

September 25, 2025 updated by: Nyamdavaa Tuul, Seoul Hospital

Single-center, Phase 1 Clinical Trial Evaluating the Safety and Preliminary Efficacy of a Combination Cellular Immunotherapy in Patients With Metastatic (Stage IV) Solid Tumors Refractory to standard-of Care Therapies.

To evaluate the safety and potential efficacy of combined immune cell therapy in patients with stage IV solid tumors who have failed standard treatment and have unresectable lesions or metastatic lesions.

Study Overview

Status

Status

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

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

The combined immune cell therapy has a strong potential to improve treatment outcomes in several cancers, but problems related to manufacturing complexity, immunocompatibility, and poteintial toxicity may also arise. This clinical study was designed to address these challenges and to establish the safety and potential efficacy of combined immune cell therapy for unresectable solid tumors. This is a phase I study to evaluate the safety and potential efficacy of combined immune cell theapy, and obtain the recommended dose and infusion plan.

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 (Actual)

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.
9

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 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 Locations

  • Mongolia
      • Ulaanbaatar, Mongolia
        • Seoul Hospital

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:

  • Those who have been histologically or cytologically confirmed as adenocarcinoma among solid tumors
  • Those with at least one measurable or evaliable lesion by RECIST v1.1
  • Those who fail standard treatment for metastatic solid tumors (failure of treatment is defined as failure of not only progression of the disease or recurrence after treatment, but also unacceptable side effects or maintenance of the treatment process)
  • ECOG performance status 0 or 1 person

  • A person who can draw about 100 cc of whole blood for the manufacture of immune cells

    • Weight: More than 50 kg for men and more than 35 kg for women
    • Hb: 9.0 g/dL or higher (registerable if hemoglobin levels recover to 10.0 g/dL or higher during the screening period); however, transfusions within 7 days prior to screening to meet this standard are not allowed)
  • Appropriate contraceptive regimen up to 2 months after clinical research drug administration
  • A person who voluntarily decides to participate after receiving a sufficient explanation for this clinical study and agrees in writing

Exclusion Criteria:

  • Brain Metastasis patients who have symptoms or need treatment [However, patients with stable brain metastasis who have no symptoms and do not need treatment (excluding anticonvulsants in maintenance therapy) can register]
  • A person with a systemic disease that is inappropriate to administer anticancer drugs according to the researcher's judgment
  • Those with the following cardio-cerebrovascular diseases as of the time of screening
  • a person who is HIV-positive
  • Those determined that the researcher was not suitable for participation in this clinical study as a result of the active infection (HBV, HCV) test
  • a person with acute or severe infection
  • Those who have autoimmune diseases or have a history of chronic or recurrent autoimmune diseases
  • Those with a history of organ transplants
  • a hematopoietic stem cell transplant patient

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: SDH-Combi
natural killer (NK) cells and cytotoxic T lymphocytes (CTLs)
Biological: Combi
Biological immune cell therapy

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
Number of participants with treatment-related adverse events (AEs)
Time Frame: 6 months
All AEs will be collected and graded according to NCI-CTCAE v5.0. Data will be reported as the number and percentage of participants experiencing ≥1 AE.
6 months
Number of participants with serious adverse events (SAEs)
Time Frame: 6 months
SAEs will be assessed for type, severity, and relationship to the investigational product. Reported as the number and percentage of participants experiencing ≥1 SAE.
6 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) assessed by RECIST v1.1
Time Frame: 6 months
Defined as the proportion of participants with Complete Response (CR) or Partial Response (PR) according to RECIST v1.1. Reported as a percentage of evaluable participants.
6 months
Disease Control Rate (DCR) assessed by RECIST v1.1
Time Frame: 6 months
Defined as the proportion of participants achieving CR, PR, or Stable Disease (SD). Reported as a percentage of evaluable participants.
6 months
Change from baseline in EORTC QLQ-C30 global health status/quality of life score
Time Frame: 6 months
Change from baseline to 6 months in the global health status/QoL domain of the EORTC QLQ-C30 questionnaire (0-100 scale; higher score indicates better outcome). Reported as mean change from baseline with standard deviation.
6 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.
Seoul 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 (Actual)

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.
August 1, 2024

Primary Completion (Actual)

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.
May 28, 2025

Study Completion (Actual)

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.
June 8, 2025

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).
February 20, 2024

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.
February 28, 2024

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.
March 6, 2024

Study Record Updates

Last Update Posted (Estimated)

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.
October 1, 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.
September 25, 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.
September 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.
  • SDH-Combi
  • Mongolian IRB (Other Identifier: 24/094)

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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