Skip to content

Molecular Imaging of Prostate-Specific Membrane Antigen Using Labeled Technetium-99m BQ0413

SPECT Imaging of Prostate-Specific Membrane Antigen Using Labeled Technetium-99m BQ0413 ([99mTc]Tc- BQ0413) in Prostate Cancer Patients

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06101927
Enrollment
10
Registered
2023-10-26
Start date
2023-10-19
Completion date
2024-12-30
Last updated
2026-06-24

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

Conditions

Prostate Cancer

Keywords

Prostate-Specific Membrane Antigen, Prostate cancer, [99mTc]Tc-BQ0413, SPECT

Brief summary

The study should evaluate the biological distribution of \[99mTc\]Tc-BQ0413 in patients with prostate cancer. The primary objective are: 1. To assess the distribution of \[99mTc\]Tc- BQ0413 in normal tissues and tumors at different time intervals. 2. To evaluate dosimetry of \[99mTc\]Tc- BQ0413. 3. To study the safety and tolerability of the drug \[99mTc\]Tc- BQ0413 after a single injection in a diagnostic dosage. The secondary objective are: 1\. To compare the obtained \[99mTc\]Tc- BQ0413 SPECT imaging results with the data of CT and/or MRI and/or ultrasound examination and immunohistochemical (IHC) studies in prostate cancer patients.

Detailed description

The overall goal is to study the effectiveness of SPECT imaging prostate cancer patients Using technetium-99m labeled BQ0413. Phase I of the study: Biodistribution of \[99mTc\]Tc-BQ0413 in patients with prostate cancer. The main objectives of the study: 1. To evaluate the distribution of \[99mTc\]Tc-BQ0413 in normal tissues and tumors in patients with prostate cancer at different time intervals. 2. To evaluate dosimetry of \[99mTc\]Tc-BQ0413 based on the pharmacokinetic parameters of the drug after a single intravenous administration. 3. To study the safety of use and tolerability of the drug \[99mTc\]Tc-BQ0413 after a single intravenous administration in a diagnostic dosage. Additional research tasks: 1\. To conduct a comparative analysis of the diagnostic information obtained in the visualization of prostate cancer by SPECT using \[99mTc\]Tc-BQ0413 with data obtained by CT and/or MRI and/or ultrasound examination and immunohistochemical (IHC) research of postoperative material. Methodology: Open-label, exploratory, single centre study. The subjects will receive a single injection of the labeled tracer.

Interventions

DRUGWhole body study and SPECT with [99mTc]Tc-BQ0413

One single intravenous injection of \[99mTc\]Tc-BQ0413, followed by gamma camera imaging after 2, 4, 6 and 24 hours.

Sponsors

Tomsk National Research Medical Center of the Russian Academy of Sciences
Lead SponsorOTHER
Uppsala University
CollaboratorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
DIAGNOSTIC
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
MALE
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Subject is \> 18 years of age * Clinical and radiological diagnosis of prostate cancer with histological verification. * White blood cell count: \> 2.0 x 10\^9/L * Haemoglobin: \> 80 g/L * Platelets: \> 50.0 x 10\^9/L * Bilirubin =\< 2.0 times Upper Limit of Normal * Serum creatinine: Within Normal Limits * Blood glucose level not more than 5.9 mmol/L * Subject is capable to undergo the diagnostic investigations to be performed in the study * Informed consent

Exclusion criteria

* Active current autoimmune disease or history of autoimmune disease * Active infection or history of severe infection within the previous 3 months (if clinically relevant at screening) * Known HIV positive or chronically active hepatitis B or C * Administration of other investigational medicinal product within 30 days of screening * Ongoing toxicity \> grade 2 from previous standard or investigational therapies, according to US National Cancer Institute's

Design outcomes

Primary

MeasureTime frameDescription
Gamma camera-based whole-body [99mTc]Tc-BQ0413 uptake value (%)24 hoursWhole-body \[99mTc\]Tc-BQ0413 uptake coinciding with normal organs and tissues will be assessed using gamma camera and calculated as percentage (%) of the injected dose of the radiopharmaceutical
SPECT-based [99mTc]Tc-BQ0413 value in tumor lesions (counts)6 hours\[99mTc\]Tc-BQ0413 uptake coinciding with tumor lesions will be assessed using single-photon emission computed tomography and measured in counts
SPECT-based [99mTc]Tc-BQ0413 uptake value (counts)6 hoursFocal uptake of \[99mTc\]Tc-BQ0413 in the regions without pathological findings will be assessed with SPECT and measured in counts
Tumor-to-background ratio (SPECT)6 hoursThe SPECT-based tumor-to-background ratio will be calculated as follows: the value of \[99mTc\]Tc-BQ0413 uptake coinciding with tumor lesions (counts) will be divided by the value of \[99mTc\]Tc-BQ0413 uptake coinciding with the regions without pathological findings (counts)

Secondary

MeasureTime frameDescription
Percent of cases with abnormal findings relative to baseline [Safety and Tolerability]24 hoursThe safety attributable to \[99mTc\]Tc-BQ0413 injections will be evaluated based on the assessments of physical examination, vital signs, and ECG (percent of cases with abnormal findings relative to baseline)
Percent of participants with abnormal laboratory values that are related to diagnostic imaging procedure [Safety and Tolerability]24 hoursThe safety attributable to \[99mTc\]Tc-BQ0413 injections will be evaluated based on the blood and urine laboratory tests (percent of cases with abnormal findings relative to baseline)
Percent of participants with adverse events that are related to diagnostic imaging procedure [Safety and Tolerability]24 hoursThe safety attributable to \[99mTc\]Tc-BQ0413 injections will be evaluated based on the rate of adverse events (percent)
Percent of participants requiring administration of medication due to side effects that are related to diagnostic imaging procedure [Safety and Tolerability]24 hoursThe safety attributable to \[99mTc\]Tc-BQ0413 injections will be evaluated based on the rate of administration of concomitant medication (percent)

Countries

Russia

Contacts

STUDY_DIRECTORVladimir I Chernov, MD,Prof

Tomsk NRMC

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 25, 2026