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Prostate Cancer Patients Undergoing Radical ProstatectomyPhase 2DGPR1008NCT07024030

Safety and Efficacy Trial of a Targeted PSMA Fluorescent Contrast Agent (DGPR1008) for Intraoperative Imaging of Prostate Cancer

A Phase 2 study testing 0.02mg/kg and 0.04mg/kg in people with Prostate Cancer Patients Undergoing Radical Prostatectomy, run by Haitao Niu, MD at 1 site in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

a single-arm, open-label, multi-center study to evaluate safety, tolerability, pharmacokinetics, and the effectiveness of near-infrared fluorescence imaging during surgery. Read more about this study

Who is it for?
Ages 18 years and older, men only
What is being tested?
0.02mg/kg and 0.04mg/kg
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
24 participants
Where
1 siteChina
Study dates
30 Oct 2024to 31 Mar 2025
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • Men only
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects must provide informed consent prior to enrollment, fully understand the trial details, adverse events, and communicate effectively with investigators. Written informed consent must be voluntarily signed.
  • Adult male subjects aged ≥18 years. Subjects with pathologically confirmed prostate cancer (Gleason score ≥7) via pre - operative prostate biopsy, scheduled for radical prostatectomy.
  • No significant liver or kidney impairment: liver - total bilirubin ≤2×ULN (except Gilbert syndrome), ALT/AST ≤3×ULN; kidney - creatinine clearance rate ≥50 mL/min/1.73m² (simplified MDRD).
  • No surgical contraindications; suitable for laparoscopic radical prostatectomy as determined by the investigator.
  • Subject and partner/spouse agree to avoid conception and sperm donation from screening until 3 months post - trial, and use effective contraception.

Who cannot join

  • Subjects will be excluded if any of the following apply:
  • Allergic constitution (history of allergy to ≥2 drugs), prone to allergic reactions, or allergic to the investigational drug (including components).
  • Clinically significant abnormal screening results affecting the study, or serious concomitant diseases (except stable cases approved by the investigator).
  • Participation in other clinical trials and received investigational products within 1 month before study drug administration.
  • Other conditions deemed unsuitable for enrollment by the investigator.

Trial locations and contacts

1 site in 1 country.

China1 site
  • The Affiliated Hospital of Qingdao University

    Qingdao, Shandong, 266031

Other trials in China

About this study

Official title: A Clinical Phase I/II Study Evaluating the Safety, Tolerability and Pharmacokinetics of the PSMA-targeted Fluorescent Contrast Agent DGPR1008 for Intraoperative Imaging in Prostate Cancer

a single-arm, open-label, multi-center study to evaluate safety, tolerability, pharmacokinetics, and the effectiveness of near-infrared fluorescence imaging during surgery.

Read the detailed description

We plan to enroll 24 prostate cancer patients and divide them into 2 dosage groups. Intravenous administration will be conducted 24 hours before surgery. Blood samples will be collected for relevant tests, and fluorescence imaging will be performed during the operation. After surgery, the intraoperative imaging results will be compared with pathological findings to draw relevant conclusions.

Being tested
0.02mg/kg, 0.04mg/kg
Keywords
DGPR1008

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • 0.02mg/kgDrug

    Also called intravenous drip

    Slowly infuse intravenously 24 hours before the scheduled surgery. The investigator shall conduct near-infrared fluorescence imaging during the operation to assist with the surgery. Tissues detected with fluorescence need to be marked, and resection shall be guided by fluorescence until there is no fluorescent tissue within the surgical field.

  • 0.04mg/kgDrug

    Also called intravenous drip

    Slowly infuse intravenously 24 hours before the scheduled surgery. The investigator shall conduct near-infrared fluorescence imaging during the operation to assist with the surgery. Tissues detected with fluorescence need to be marked, and resection shall be guided by fluorescence until there is no fluorescent tissue within the surgical field.

Study groups in NCT07024030
Study groupRoleWhat they receive
The first dose groupExperimentalSlowly infuse intravenously 24 hours before the scheduled surgery. The investigator shall conduct near-infrared fluorescence imaging during the operation to assist with the surgery. Tissues detected with fluorescence need to be marked, and resection shall be guided by fluorescence until there is no fluorescent tissue within the surgical field.
Receives: Drug: 0.02mg/kg
The second dose groupExperimentalSlowly infuse intravenously 24 hours before the scheduled surgery. The investigator shall conduct near-infrared fluorescence imaging during the operation to assist with the surgery. Tissues detected with fluorescence need to be marked, and resection shall be guided by fluorescence until there is no fluorescent tissue within the surgical field.
Receives: Drug: 0.04mg/kg

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. To evaluate the safety of single-dose administration of DGPR1008 in patients

    Adverse event collection, including (such as the location, nature, and frequency of pain), physical signs (such as the scope of rash, blood pressure values), laboratory abnormal values and units (such as ALT 200 U/L), etc.

    Measured: From the screening period to the day before withdrawal on Day 3 of the trial

  2. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the area under the plasma concentration-time curve from time 0 to infinity (AUC₀-∞) in the blood of 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  3. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the maximum plasma concentration (Cmax) in the blood of 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  4. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the area under the plasma concentration-time curve from time 0 to time t (AUC₀-t) in the blood of 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  5. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the percentage of extrapolated area under the plasma concentration-time curve (AUC%Extrap) in the blood of 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  6. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the plasma elimination half-life (t₁/₂) in 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  7. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the blood clearance (CL) in 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  8. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the renal clearance (CL renal) in 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  9. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the terminal elimination rate constant (λz) in 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  10. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the apparent volume of distribution during terminal phase (Vz) in 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  11. To evaluate the safety of single-dose administration of DGPR1008 in patients

    Vital signs examination, such as blood pressure, oxygen saturation, pulse and other data.

    Measured: From the screening period to the day before withdrawal on Day 3 of the trial

  12. To evaluate the pharmacokinetic characteristics of single-dose administration of DGPR1008 in patients

    To measure the mean residence time (MRT₀-t, MRT₀-∞) of the drug in the blood of 24 subjects

    Measured: PK blood samples will be collected 60 minutes before drug administration, and immediately, 30 minutes (±5 minutes), 1 hour (±10 minutes), 2 hours (±10 minutes), 4 hours (±20 minutes), 6 hours (±30 minutes), and 8 hours (±30 minutes) after administration.

  13. To evaluate the safety of single-dose administration of DGPR1008 in patients

    Physical examination, with body mass index (BMI) reported as weight (kg)/height (m²), electrocardiogram (ECG) examination, and laboratory tests (blood routine, blood biochemistry, urinalysis, coagulation function).

    Measured: From the screening period to the day before withdrawal on Day 3 of the trial

Secondary outcomes (1)
  1. Evaluate the effectiveness of the detection by DGPR1008 in conjunction with the near-infrared fluorescence imaging device for intraoperative imaging in patients.

    Evaluate the sensitivity, specificity, false positive rate, false negative rate of DGPR1008 in detecting prostate cancer cells or tissues in near-infrared imaging, and assess the tumor-to-background ratio.

    Measured: 24 hours before the surgery

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Jun 2025
  2. Study start30 Oct 2024
  3. Primary completion31 Dec 2024
  4. Study completion31 Mar 2025

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
24 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07024030
Sponsor's protocol ID
QYFYEC2024-047-04
Other IDs
CXHL2400243
Acronym
DGPR1008
Status last verified
Jun 2025
First submitted
18 May 2025
Last updated
17 Jun 2025
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing 0.02mg/kg and 0.04mg/kg in people with Prostate Cancer Patients Undergoing Radical Prostatectomy, run by Haitao Niu, MD at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Jun 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

To evaluate the safety of single-dose administration of DGPR1008 in patients (time frame: From the screening period to the day before withdrawal on Day 3 of the trial). The study lists 13 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Jun 2025.

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