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The Use of Nanoparticles to Guide the Surgical Treatment of Prostate Cancer

Molecular Phenotyping and Image-Guided Surgical Treatment of Prostate Cancer Using Ultrasmall Silica Nanoparticles

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04167969
Enrollment
16
Registered
2019-11-19
Start date
2021-02-17
Completion date
2026-11-01
Last updated
2026-03-27

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

Conditions

Prostate Cancer

Keywords

Molecular Phenotyping, Ultrasmall Silica Nanoparticles, PET/MRI, 64Cu-NOTA-PSMA-PEG-Cy5.5-C' dot tracer, (89Zr)-DFO-PSMAi-PEG-Cy5.5-C' dots, 19-333

Brief summary

The purpose of this study is to see whether using the copper-64 (64Cu) or zirconium-89 (89Zr) radiolabeled PSMA-targeting C' dot tracer, termed 64Cu-NOTA-PSMAi-PEG-Cy5.5-C' dots or 89Zr-DFO-PSMAi-PEG-Cy5.5-C' dots, is a safe way to identify tumor cells before and during surgery for prostate cancer. The researchers want to determine whether pre-operative PET/MRI scans and intra-operative optical imaging performed in prostate cancer patients after the injection of one of these investigational tracers more accurately localizes cancerous deposits within the surgical bed as compared with conventional imaging scans alone. The researchers will study how the tracer travels through your body and where it is distributed. This study is the first time that the tracer will be used in patients undergoing surgery for prostate cancer.

Interventions

DRUG(64Cu)-NOTA-PSMAi-PEG-Cy5.5-C' dot tracer, or (89Zr)-DFO-PSMAi-PEG-Cy5.5-C' dots

Patients will be injected with approximately 6-7 mCi (+/- 10%) of 64Cu-NOTA-PSMAi-PEG-Cy5.5-C' dots or 89Zr-DFO-PSMAi-PEG-Cy5.5-C' dots, up to 48 hours before surgery.

DIAGNOSTIC_TESTPET/MRI/fluorescence imaging

Imaging will be performed using the GE Signa PET/MRI.

Staff will perform the IV blood draws and collect urine samples

PROCEDURElaparoscopic radical prostatectomy and bilateral pelvic LN dissection or a salvage lymph node dissection

Surgery will be performed within 24 h of the third PET/MRI scan.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER
Cornell University/Weill Cornell Medical Center
CollaboratorUNKNOWN
National Cancer Institute (NCI)
CollaboratorNIH

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

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

Inclusion criteria

Primary RP + PLND * Age ≥18 years * Patients meeting one of the following criteria: * Tumor clinical stage T3a or higher * Gleason score 8-10, or * PSA level \> 20 ng/mL * Patients deemed fit for surgery on the basis of preoperative evaluation at the physician's discretion * Patient is scheduled for standard of care laparoscopic radical prostatectomy (with or without robotic assistance) Salvage PLND * Age ≥18 years * Patients with presence of suspicious lymph node on CT or MRI (of a pelvic node =\> 10mm in short axis or a node with abnormal morphology such as roundness irregularity or loss of fatty hilum, or PSMA-avid on PSMA PET imaging * Patients deemed fit for surgery on the basis of preoperative evaluation at the physician's discretion * Patient is scheduled for standard of care salvage pelvic lymph node dissection (with or without robotic assistance)

Exclusion criteria

* Contraindications to standard-of-care MR imaging (e.g., metal implants, claustrophobia) * Prior androgen-deprivation therapy for prostate cancer (N/A for Salvage PLND) * Prior pelvic radiotherapy (N/A for Salvage PLND ) * Medical illness unrelated to the tumor that, in the opinion of the attending physician and principal investigator, will preclude administration of the tracer °This includes patients with uncontrolled infection, chronic renal insufficiency (EGFR \< 60 mL/min/1.73m2), myocardial infarction within the past 6 months, unstable angina, cardiac arrhythmias other than chronic atrial fibrillation and chronic active or persistent hepatitis, or New York Heart Association Classification III or IV heart disease * Weight greater than the 400-lb weight limit of the PET scanner * Unmanageable claustrophobia * Inability to lie in the scanner for 30 min

Design outcomes

Primary

MeasureTime frameDescription
Side effects1 yearWill be described using CTCAE version 5 criteria.

Countries

United States

Contacts

CONTACTHong Truong, MD, MS
truongh1@mskcc.org646-422-4360
CONTACTHeiko Schoder, MD
212-639-8001
PRINCIPAL_INVESTIGATORHong Truong, MD, MS

Memorial Sloan Kettering Cancer Center

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 28, 2026