Study to Evaluate Safety and Dosimetry of [18F]GEH121224 in Patients With Locally Advanced or Metastatic Breast Cancer

NCT05634954 · Status: WITHDRAWN · Phase: PHASE1 · Type: INTERVENTIONAL

Last updated 2025-10-23

No results posted yet for this study

Summary

The study described in this protocol is a Phase 1, single center clinical trial to evaluate the safety and potential of \[18F\]GEH121224 as a PET radiotracer for the diagnostic imaging of HER2 positive breast cancer lesions. A group of 6 patients will be selected to perform a dosimetry study with \[18F\]GEH121224 followed by another group of 6 patients in a test-retest study. The results of this study will provide crucial information to guide the development of \[18F\]GEH121224 for the detection of HER2 status in advanced breast cancer patients. This study will use established methods for characterizing the radiation dosimetry, biodistribution and basic pharmacokinetics of a radiotracer.

Conditions

Interventions

DRUG

GEH121224 (18F) Injection

Single GEH121224 (18F) Injection

DIAGNOSTIC_TEST

Dynamic and Static - PET/CT Scan

Group 1: Dynamic whole-body PET/CT scan will start at the time of injection (8 sequential scans over 90 minutes anticipated) followed by static whole-body scans starting at 120 minutes and 240 minutes after injection.

DIAGNOSTIC_TEST

Static - PET/CT Scan

Group 2: Static whole-body scans

Sponsors & Collaborators

  • Laboratory Corporation of America

    collaborator INDUSTRY
  • GE Healthcare

    lead INDUSTRY

Principal Investigators

  • Eduard Zhalovaga, MD, PhD · GE Healthcare Ltd

Study Design

Allocation
NON_RANDOMIZED
Purpose
DIAGNOSTIC
Masking
NONE
Model
SEQUENTIAL

Eligibility

Min Age
18 Years
Sex
FEMALE
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-02-28
Primary Completion
2026-12-31
Completion
2026-12-31
FDA Drug
Yes

Countries

  • United States

Study Locations

More Related Trials

Entities

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT05634954 on ClinicalTrials.gov