Molecular Imaging of HER2 Expression in Breast Cancer Using 99mTc-ZHER2.

Status Completed

Clinical Trial Summary

The study should evaluate distribution of 99mTc-ZHER2:41071 Affibody molecule in patients with primary HER2-positive and HER2-negative breast cancer The primary objectives are: 1. To assess distribution of 99mTc-ZHER2:41071 in normal tissues and in tumors over time; 2. To evaluate dosimetry of 99mTc-ZHER2:41071; 3. To obtain initial information concerning safety and tolerability of 99mTc-ZHER2:41071 after single intravenous injection: The secondary objectives are: 1. To compare the tumor imaging data with the data concerning HER2 expression obtained by immunohistochemistry (IHC) and/or fluorescent in situ hybridization (FISH) analysis of biopsy samples.

Clinical Trial Description

Overall goal of the project: To determine HER2 expression level in primary breast cancer and possibly in axillary lymph node metastases before neoadjuvant targeted (trastuzumab or trastuzumab+pertuzumab) therapy. Phase I. Distribution of 99mTc-ZHER2:41071 in patients with primary breast cancer. The study should evaluate distribution of 99mTc-ZHER2:41071 in patients with primary HER2-positive and HER2-negative breast cancer. The primary objectives are: 1. To assess distribution of 99mTc-ZHER2:41071 in normal tissues and in tumors over time; 2. To evaluate dosimetry of 99mTc-ZHER2:41071; 3. To obtain initial information concerning safety and tolerability of 99mTc-ZHER2:41071 after single intravenous injection: The secondary objectives are: 1. To compare the tumour imaging data with the concerning HER2 expression obtained by immunohistochemistry (IHC) or fluorescent in situ hybridization (FISH) analysis of biopsy samples: Methodology: Open-label, exploratory, single center study. The subjects will receive a single injection of the labelled tracer. ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT05203497
Study type	Interventional
Source	Tomsk National Research Medical Center of the Russian Academy of Sciences
Contact
Status	Completed
Phase	Phase 1
Start date	December 22, 2021
Completion date	March 1, 2023

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