Safety and Preliminary Efficacy Evaluation of LC-K76 Plus Anti-PD-1 Therapy in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

February 3, 2026 updated by: Ren Shancheng, Shanghai Changzheng Hospital

An Open-Label, Single-Arm, Exploratory Study to Evaluate the Safety and Preliminary Efficacy of LC-K76 Plus Anti-PD-1 Therapy in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC)

This open-label, single-arm study evaluates the safety and preliminary efficacy of LC-K76 combined with Tislelizumab and ADT in 10 patients with Metastatic Castration-Resistant Prostate Cancer (mCRPC) who progressed on prior therapies. Participants will receive oral LC-K76 and intravenous Tislelizumab for a 24-week treatment period.

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.
10

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.
  • Name: Ren, MD,PhD

Study Locations

  • China
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 201109
        • Changzheng hospital
        • Contact:
          • Shancheng Ren, PhD/MD

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. Male, aged 18 to 85 years.
  2. Histologically confirmed prostate adenocarcinoma, without small cell carcinoma components.
  3. Metastatic Castration-Resistant Prostate Cancer (mCRPC) with disease progression after at least one novel endocrine therapy (e.g., abiraterone or enzalutamide) and/or docetaxel chemotherapy.
  4. Evidence of bone metastasis on PSMA-PET-CT or bone scan (ECT).
  5. Serum testosterone at castration levels (< 50 ng/dL or 1.75 nmol/L).
  6. ECOG performance status ≤ 2.
  7. Life expectancy > 6 months.
  8. Adequate bone marrow, hepatic, and renal function.
  9. Willing to undergo biopsies before and during treatment

Exclusion Criteria:

  1. Lack of pathological evidence for prostate cancer.
  2. Other primary malignant tumors active or requiring treatment within the past 3 years.
  3. Has visceral metastases.
  4. Poorly controlled diabetes after continuous insulin therapy.
  5. Significant abnormalities in laboratory values at randomization (Hb < 90 g/L; Neutrophils < 1.5x10^9/L; Platelets < 75x10^9/L; ALT/AST > 2.5xULN; Bilirubin > 1.5xULN; eGFR < 60 mL/min/1.73m^2) .
  6. Severe cardiopulmonary disease or high-risk conditions.
  7. Prior therapy with any immune checkpoint inhibitors (e.g., anti-PD-1/PD-L1).
  8. Intolerance to anti-PD-1 monoclonal antibody or dandelion extracts.
  9. History of severe drug allergies.
  10. Factors affecting drug intake/absorption (e.g., swallowing difficulty, chronic diarrhea).
  11. Concurrent psychiatric or neurological conditions

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: LC-K76 + Tislelizumab + ADT
Participants receive oral LC-K76 combined with intravenous Anti-PD-1 monoclonal antibody (Tislelizumab) and standard androgen deprivation therapy (ADT). Treatment continues for 24 weeks.
Dietary supplement: LC-K76
Oral administration, 1.2 g twice daily (BID), taken 30 minutes before breakfast and dinner.
Drug: Tislelizumab
Intravenous infusion, 200 mg every 3 weeks (Q3W).
Drug: Standard Androgen Deprivation Therapy (ADT)
Maintenance of ADT using GnRH agonist or antagonist (e.g., Goserelin, Leuprorelin, Triptorelin, or Degarelix).

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
Incidence of Adverse Events (AEs)
Time Frame: From baseline to primary completion, which may take up to 24 to 48 weeks
The Incidence of Adverse Events is defined as the proportion of subjects in a clinical trial who experience at least one Adverse Event (AE) during the defined observation period, which is assessed by CTCAE 5.0.
From baseline to primary completion, which may take up to 24 to 48 weeks

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
PSA Response Rate
Time Frame: From baseline to primary completion, which may take up to 24 to 48 weeks
From baseline to primary completion, which may take up to 24 to 48 weeks
Disease control rate (DCR)
Time Frame: From baseline to primary completion, which may take up to 24 to 48 weeks
Defined as the proportion of subjects whose best overall response, assessed per RECIST 1.1 and PCWG3, is Complete Response (CR), Partial Response (PR), or Stable Disease (SD) .
From baseline to primary completion, which may take up to 24 to 48 weeks
Radiographic Progression-Free Survival (rPFS)
Time Frame: From baseline to primary completion, which may take up to 24 to 48 weeks
Defined as the time from treatment initiation to the first objective evidence of disease progression as assessed by radiographic imaging, or death from any cause, whichever occurs first.
From baseline to primary completion, which may take up to 24 to 48 weeks
Time to First Skeletal-Related Event (SRE)
Time Frame: From baseline to primary completion, which may take up to 24 to 48 weeks
Defined as the interval from the date of treatment initiation to the date of the first occurrence of any of the following clinically significant events attributable to bone metastasis: pathological fracture (vertebral or non-vertebral), palliative radiation therapy to bone for pain relief, surgical intervention to bone to prevent or treat a fracture or spinal cord compression, or confirmed spinal cord compression.
From baseline to primary completion, which may take up to 24 to 48 weeks

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.
Shanghai Changzheng 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.
February 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.
December 1, 2026

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.
June 1, 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).
December 28, 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.
February 3, 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.
February 5, 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.
February 5, 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.
February 3, 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.
February 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.
  • LC-K76-201

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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