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Research on PSMA-Targeted Intraoperative Fluorescent Imaging Agents

A Phase I/Ⅱa, Single-arm, Open-label Trial of DGPR1008 for Intraoperative Fluorescence Imaging of Prostate-specific Membrane Antigen-positive Prostate Cancer

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07101354
Acronym
DGPR1008
Enrollment
32
Registered
2025-08-03
Start date
2024-06-24
Completion date
2024-09-24
Last updated
2025-08-03

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate CA, Prostate Cancer Patients Undergoing Radical Prostatectomy

Brief summary

Phase I: Primary Research Objective: Evaluate the safety, tolerability, and pharmacokinetic characteristics of a single dose of DGPR1008 in healthy subjects. Secondary Research Objective: Based on the safety and pharmacokinetic results, assess the maximum tolerated dose (MTD) and the recommended phase II dose (RP2D) of DGPR1008.

Interventions

DRUG0.08mg/kg DGPR1008 Injection Dose Group 4 (n=6)

Within the specified time period, conduct dose escalation, and administer the corresponding dose via intravenous drip according to the randomization information.

DRUG0.01mg/kg DGPR1008 Injection Dose Group 1 (n=6)

Within the specified time period, conduct dose escalation, and administer the corresponding dose via intravenous drip according to the randomization information.

DRUG0.02mg/kg DGPR1008 Injection Dose Group 2 (n=6)

Within the specified time period, conduct dose escalation, and administer the corresponding dose via intravenous drip according to the randomization information.

DRUG0.04mg/kg DGPR1008 Injection Dose Group 3 (n=6)

Within the specified time period, conduct dose escalation, and administer the corresponding dose via intravenous drip according to the randomization information.

DRUGDose Group 0 (n=8)

Within the specified time frame, dose escalation will be conducted. Intravenous infusions will be administered according to randomization, with subjects receiving either the corresponding dose or placebo.

Sponsors

Haitao Niu, MD
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
FACTORIAL
Primary purpose
OTHER
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

* Provide signed informed consent prior to the trial, and fully understand the trial content, procedures, and potential adverse reactions. * Be able to complete the study as required by the trial protocol. * Be an adult male aged 18-65 years (inclusive). * Have a body weight ≥50 kg and a body mass index (BMI) of 18-30 kg/m² (calculated as BMI = weight \[kg\]/height² \[m²\]). * Neither the subject nor their partner/spouse plan to conceive or donate sperm from screening until 3 months after the trial completion, and agree to use effective non-pharmacological contraception during the study.

Exclusion criteria

Subjects will be excluded if any of the following apply: * Clinically significant abnormalities (physical exam, vital signs, ECG, labs) or severe medical history (cardiac, hepatic, renal, GI, neurological, respiratory, psychiatric, metabolic) deemed unsuitable by the investigator. * History of allergy (≥2 drugs/foods, milk/pollen), or allergy to investigational drug/components. * Alcohol abuse (\>14 units/week) in prior 3 months or positive breathalyzer. * Positive serology for HBsAg, anti-HCV, anti-HIV, or syphilis. * Positive urine drug screen, drug abuse history (past 5 years), or illicit drug use (past 3 months). * Blood loss \>400 mL or platelet donation (2 therapeutic units) in prior 3/1 months, respectively. * Smoking \>5 cigarettes/day (past 3 months) and inability to abstain. * Surgery within prior 3 months. * Participation in another clinical trial (investigational product) within prior 3 months. * Prescription medication use within prior 1 month. * OTC drugs, herbal supplements, or vitamins within prior 48 hours. * Other conditions deemed unsuitable by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Incidence of Treatment-Emergent Adverse Eventsthrough study completion, an average of 5 DaysIncidence of Treatment-Emergent Adverse Events
Number of participants with abnormal vital signsthrough study completion, an average of 5 Daystemperature in ℃
The number of participants with abnormal BMIthrough study completion, an average of 5 DaysWeight and height will be combined to report BMI in kg/m\^2
Number pf participants with abnormal laboratory tests resultsthrough study completion, an average of 5 Dayscomplete blood count

Secondary

MeasureTime frameDescription
Evaluation indices for pharmacokinetics(t1/2)PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.t1/2
Evaluation indices for pharmacokinetics(CL)PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.CL
Evaluation indices for pharmacokinetics(CLRenal)PK Urine Samples:Pre-dose (within 120 minutes before dosing); During dosing (from start to end of infusion), Post-dose time intervals: 0-2hours, 2-4hours, 4-8hours, 8-12hours, 12-24hours, 24-48 hours.CLRenal
Evaluation indices for pharmacokinetics(Cmax)PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.Cmax
Evaluation indices for pharmacokinetics(Vz)PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.Vz
Evaluation indices for pharmacokinetics(MRT(0-t)、MRT(0-∞))PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.(MRT(0-t)、MRT(0-∞))
Evaluation indices for pharmacokineticsPK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.λz
Evaluation indices for pharmacokinetics(AUC(0-t))PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.AUC(0-t)
Evaluation indices for pharmacokinetics(AUC(0-∞))PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.AUC(0-∞)
Evaluation indices for pharmacokinetics(AUC_%Extrap)PK Blood Samples:Pre-dose (within 60 minutes before dosing);Immediately after dosing completion (within 2 minutes),5 minutes(±2 minutes) and 15minutes (±3 minutes) and 30minutes (±5 minutes) and(1, 2, 4, 6, 8, 24 hours)(±30 minutes) post-dose.AUC\_%Extrap

Countries

China

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026