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

March 23, 2026 updated by: Memorial Sloan Kettering Cancer Center

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

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.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

16

Phase

  • 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

  • Name: Heiko Schoder, MD
  • Phone Number: 212-639-8001

Study Contact Backup

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10065
        • Recruiting
        • Memorial Sloan Kettering Cancer Center
        • Contact:
          • Heiko Schoder, MD
          • Phone Number: 212-639-8001
        • Contact:
          • Hong Truong, MD, MS
          • Phone Number: 646-422-4360
      • New York, New York, United States, 10065
        • Not yet recruiting
        • Weill Cornell Medicine
        • Contact:

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

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

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

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: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Prostate cancer patients
Patients will receive an intravenous (IV) injection of approximately 6-7 mCi (+/- 10%) of PSMA-targeting C' dot tracer up to 48 hours before surgery. Patients will then undergo serial preoperative PET/MR imaging to help characterize the safety, biodistribution/pharmacokinetics, and dosimetry of this agent. To assess total radioactivity in whole blood/plasma and urine samples, as well as radioactive metabolites, blood and urine samples will be collected at approximately 30 min post-injection as well as before each imaging session
Other: Blood and urine sampling
Staff will perform the IV blood draws and collect urine samples
Procedure: laparoscopic 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.
Diagnostic test: PET/MRI/fluorescence imaging
Imaging will be performed using the GE Signa PET/MRI.
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.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Side effects
Time Frame: 1 year
Will be described using CTCAE version 5 criteria.
1 year

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Memorial Sloan Kettering Cancer Center

Collaborators

National Cancer Institute (NCI)
Cornell University/Weill Cornell Medical Center

Investigators

  • Principal Investigator: Hong Truong, MD, MS, Memorial Sloan Kettering Cancer Center

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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)

February 17, 2021

Primary Completion (Estimated)

November 1, 2026

Study Completion (Estimated)

November 1, 2026

Study Registration Dates

First Submitted

November 18, 2019

First Submitted That Met QC Criteria

November 18, 2019

First Posted (Actual)

November 19, 2019

Study Record Updates

Last Update Posted (Actual)

March 27, 2026

Last Update Submitted That Met QC Criteria

March 23, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 19-333

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Memorial Sloan Kettering Cancer Center supports the international committee of medical journal editors (ICMJE) and the ethical obligation of responsible sharing of data from clinical trials. The protocol summary, a statistical summary, and informed consent form will be made available on clinicaltrials.gov when required as a condition of Federal awards, other agreements supporting the research and/or as otherwise required. Requests for deidentified individual participant data can be made beginning 12 months after publication and for up to 36 months post publication. Deidentified individual participant data reported in the manuscript will be shared under the terms of a Data Use Agreement and may only be used for approved proposals. Requests may be made to: crdatashare@mskcc.org.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

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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