3D1015 Injection for Patients With mCRPC

April 12, 2026 updated by: Chunjing Yu

Safety, Dosimetry, and Preliminary Efficacy of 3D1015 Injection in Patients With Metastatic Castration-Resistant Prostate Cancer (mCRPC): An Open-Label Clinical Study

This open-label clinical study investigates 3D1015 Injection (Lu 177-PSMA-3D1015) in adult males with prostate-specific membrane antigen (PSMA)-positive metastatic castration-resistant prostate cancer (mCRPC). Participants will receive intravenous infusions of 3D1015, with treatment regimens dynamically individualized to optimize patient safety and outcomes. The primary objectives are to assess the safety, tolerability, and dosimetry of the injection. Secondary objectives include evaluating preliminary anti-tumor efficacy and exploring the optimal dosing regimen.

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.

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.
8

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 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
      • Wuxi, Jiangsu, China
        • Recruiting
        • Jiangnan University Affiliated Hospital
        • Contact:
          • chunjing Yu

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. Capable of understanding and providing written informed consent. Willing and able to comply with all study requirements, treatments, and scheduled visits.
  2. Male, aged 18 years or older.
  3. Histologically or cytologically confirmed prostate adenocarcinoma.
  4. Castrate levels of serum/plasma testosterone (< 50 ng/dL or < 1.7 nmol/L).
  5. Must be 68Ga-PSMA PET/CT scan positive.
  6. ECOG performance status of 0 to 2.
  7. Confirmed progressive metastatic castration-resistant prostate cancer (mCRPC) that is refractory to or has progressed following prior treatments.
  8. Presence of at least one metastatic lesion at baseline.
  9. Adequate Organ Function.
  10. Resolution of all prior treatment-related toxicities to Grade ≤ 2 (excluding alopecia).

Exclusion Criteria:

  1. Receipt of other systemic anti-cancer therapies within 4 weeks prior to study entry.
  2. Life expectancy of < 6 months, as assessed by the investigator.
  3. A superscan as seen in the baseline bone scan.
  4. Presence of clinically significant, uncontrolled, or unstable concurrent medical conditions that may compromise patient safety or study assessments.
  5. Known hypersensitivity or severe intolerance to the study drug, its excipients, or structurally related compounds.
  6. Any medical, psychiatric, or logistical condition that, per investigator judgment, would preclude protocol compliance or compromise patient safety.

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: Lu 177-PSMA-3D1015
Drug: Lu 177-PSMA-3D1015 Injection
3D1015 is administered intravenously at an individualized dose.

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 and severity of Treatment-Emergent Adverse Events (TEAEs)
Time Frame: From first dose of study drug through end of treatment (~36-48 weeks)
Safety and tolerability will be evaluated by monitoring the incidence and severity of TEAEs.
From first dose of study drug through end of treatment (~36-48 weeks)
Occurrence of Dose-Limiting Toxicities (DLTs)
Time Frame: From first dose of study drug through end of treatment (~36-48 weeks)
Number of participants experiencing dose-limiting toxicities (DLTs) .
From first dose of study drug through end of treatment (~36-48 weeks)
Absorbed Dose
Time Frame: From first dose of study drug through end of treatment (~36-48 weeks)
Absorbed dose to the whole body, critical organs (e.g., kidneys, salivary glands), and tumor lesions assessed via serial imaging data.
From first dose of study drug through end of treatment (~36-48 weeks)
Effective Half-Life
Time Frame: From first dose of study drug through end of treatment (~36-48 weeks)
Effective half-life of the study drug in the whole body, major organs, and tumor lesions determined by serial imaging.
From first dose of study drug through end of treatment (~36-48 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
The proportion of patients with a PSA change from baseline
Time Frame: From first dose of study drug through end of treatment (~36-48 weeks)
The effect of Lu 177-PSMA-3D1015 on prostate-specific antigen (PSA) kinetics.
From first dose of study drug through end of treatment (~36-48 weeks)
Objective Response Rate (ORR)
Time Frame: From first dose of study drug through efficacy follow-up period (Up to approximately 5 years)
Percentage of participants with a complete response (CR) or partial response (PR).
From first dose of study drug through efficacy follow-up period (Up to approximately 5 years)
Radiographic progression-free survival (rPFS)
Time Frame: From first dose of study drug through efficacy follow-up period (Up to approximately 5 years)
rPFS per investigator assessment.
From first dose of study drug through efficacy follow-up period (Up to approximately 5 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.
Chunjing Yu

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 27, 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.
June 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.
December 31, 2027

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).
April 7, 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.
April 12, 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.
April 17, 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.
April 17, 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.
April 12, 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.
April 1, 2026

More Information

Terms related to this study

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.
  • 3D1015-CN-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

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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