Actively Recruiting

Early Phase 1
MALE
NCT04857502

99mTc-PSMA-I&S Biodistribution in Patients With Prostate Cancer

Led by Jonsson Comprehensive Cancer Center · Updated on 2026-03-13

30

Participants Needed

1

Research Sites

318 weeks

Total Duration

On this page

AI-Summary

What this Trial Is About

This exploratory study conducted under the RDRC program studies the biodistribution of 99mTc-PSMA-I\&S in patients with prostate cancer who undergo pelvic lymph node dissection. Prostate specific membrane antigen (PSMA)-targeted radio-guided surgery uses the preoperative intravenous administration of a PSMA-ligand called PSMA-imaging and surgery (I\&S) labeled with the gamma-emitter radioisotope Technetium-99m (99mTc). Giving 99mTc-PSMA-I\&S may detect PSMA-expressing lymph nodes during surgery using a gamma probe and may help guide doctors to detect prostate cancer that has spread to the lymph nodes.

CONDITIONS

Official Title

99mTc-PSMA-I&S Biodistribution in Patients With Prostate Cancer

Who Can Participate

MALE

Eligibility Criteria

Eligible

You may qualify if you...

  • Men with prostate cancer (primary or recurrent disease)
  • Men who have had a 68Ga-PSMA-11 PET/CT scan for staging or restaging
  • Men with lymph node-positive disease shown on 68Ga-PSMA-11 PET/CT
  • Men scheduled for pelvic lymph node dissection surgery
  • Men able to give oral and written informed consent
  • Men able to follow study procedures
Not Eligible

You will not qualify if you...

  • Patients who started any prostate cancer treatment between enrollment and surgery
  • Patients with lymph nodes in locations that are technically inaccessible

AI-Screening

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Trial Site Locations

Total: 1 location

1

UCLA / Jonsson Comprehensive Cancer Center

Los Angeles, California, United States, 90095

Actively Recruiting

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Research Team

D

Deepu Varughese

CONTACT

A

Ankush Sachdeva

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

BASIC_SCIENCE

Number of Arms

1

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99mTc-PSMA-I&S Biodistribution in Patients With Prostate Cancer | DecenTrialz