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临床试验/NCT07292571
NCT07292571Enrolling By Invitation2 期

SPECT/CT Imaging of Different Types of HER2 Expression in Breast Cancer Using Technetium-99m-labelled Affibody [99mTc]Tc -ZHER2:4107

Tomsk National Research Medical Center of the Russian Academy of Sciences1 个研究点 分布在 1 个国家目标入组 50 人开始时间: 2025年10月20日最近更新:
干预措施
相关药物

试验速览

阶段
2 期
状态
Enrolling By Invitation
入组人数
50
试验地点
1
主要终点
[99mTc]Tc -ZHER2:4107 background uptake

研究概览

简要总结

The study should evaluate the [99mTc]Tc -ZHER2:4107 accumulation in primary tumour of breast cancer patients with different HER2 expression

详细描述

To determine different HER2 expression in primary breast cancer patients before any system or local treatment.

研究设计

研究类型
Interventional
分配方式
Non Randomized
干预模型
Parallel
主要目的
Diagnostic
盲法
Single (Participant)

入排标准

年龄范围
18 Years 至 80 Years(Adult, Older Adult)
性别
Female
接受健康志愿者

入选标准

  • Subject is > 18 years of age
  • Availability of results from HER2 status previously determined on material from the primary tumor and metastatic LN, either a. HER2-positive, defined as a DAKO HercepTest™ score of 3+ or FISH positive or b. HER2-negative, defined as a DAKO HercepTest™ score of 0 or 1+; or else if 2+ then FISH negative
  • Hematological, liver and renal function test results within the following limits:
  • White blood cell count: > 2.0 x 109/L
  • Hemoglobin: > 80 g/L
  • Platelets: > 50.0 x 109/L
  • ALT, ALP, AST: =< 5.0 times Upper Limit of Normal
  • Bilirubin =< 2.0 times Upper Limit of Normal
  • Serum creatinine: Within Normal Limits
  • A negative pregnancy test for all patients of childbearing potential. Sexually active women of childbearing potential participating in the study must use a medically acceptable form of contraception for at least 30 days after study termination
  • Subject is capable to undergo the diagnostic investigations to be performed in the study
  • Informed consent

排除标准

  • Any system therapy (chemo-/targeted therapy)
  • Second, non-breast malignancy
  • Active current autoimmune disease or history of autoimmune disease
  • Active infection or history of severe infection within the previous 3 months (if clinically relevant at screening), known HIV positive or chronically active hepatitis B or C
  • Administration of other investigational medicinal product within 30 days of screening
  • Ongoing toxicity > grade 2 from previous standard or investigational therapies, according to US National Cancer Institute's

研究组 & 干预措施

HER2-positive status (IHC 3+)

Experimental

Patients with HER2-positive status (IHC 3+)

干预措施: Injection of [99mTc]Tc-ZHER2:4107, SPECT/CT (Drug)

IHC 1+ HER2 expression

Experimental

Patients with IHC 1+ HER2 expression

干预措施: Injection of [99mTc]Tc-ZHER2:4107, SPECT/CT (Drug)

IHC 0 HER2 expression

Experimental

Patients with IHC 0 HER2 expression

干预措施: Injection of [99mTc]Tc-ZHER2:4107, SPECT/CT (Drug)

结局指标

主要结局

[99mTc]Tc -ZHER2:4107 background uptake

时间窗: 2 hours

SPECT-based \[99mTc\]Tc -ZHER2:41 background uptake value (SUVmax)

Tumor-to-background ratio

时间窗: 2 hours

The SPECT/CT-based tumor-to-background ratio will be calculated as follows: the value of \[99mTc\]Tc -ZHER2:41 uptake coinciding with tumor lesions (counts) will be divided by the value of \[99mTc\]Tc -ZHER2:41 uptake coinciding with the regions without pathological findings (SUVmax)

[99mTc]Tc -ZHER2:4107 uptake in primary breast tumor

时间窗: 2 hours

SPECT/СT-based \[99mTc\]Tc -ZHER2:4107 uptake in primary breast tumor with different HER2 expression (SUVmax)

次要结局

  • Differentiation of HER2 expression in primary tumors(2 hours)

研究者

研究点 (1)

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