SPECT Imaging of Human Epidermal Growth Factor Receptor 2 (HER2) Expression in Breast Cancer Using Iodine -123-labelled Designed Ankyrin Repeat Proteins HE3-G3 ([123I] I-(HE)3-G3)
Trial Snapshot
- Phase
- Phase 1
- Status
- Completed
- Enrollment
- 10
- Locations
- 1
- Primary Endpoint
- SPECT-based [99mTc]Tc-G3-(G3S)3C uptake value in tumor lesions (counts) [123I] I-(HE)3-G3 uptake coinciding with tumor lesions will be assessed using single-photon emission computed tomography and measured in counts
Study Overview
Brief Summary
The study should evaluate distribution of [123I] I-(HE)3-G3 in patients with primary HER2-positive and HER2-negative breast cancer
Detailed Description
Overall goal of the project: To determine HER2 expression level in primary breast cancer before neoadjuvant system therapy.
Phase I. Distribution of HE3-G3 ([123I] I-(HE)3-G3) in patients with primary breast cancer. The study should evaluate distribution of HE3-G3 ([123I] I-(HE)3-G3) in patients with primary HER2-positive and HER2-negative breast cancer.
Study Design
- Study Type
- Interventional
- Allocation
- Na
- Intervention Model
- Single Group
- Primary Purpose
- Diagnostic
- Masking
- None
Eligibility Criteria
- Ages
- 18 Years to 80 Years (Adult, Older Adult)
- Sex
- Female
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- •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
Exclusion Criteria
- •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
Arms & Interventions
The tested injected doses of [123I] I-(HE)3-G3 3000 μg
At least five (5) evaluable subjects with HER2-positive status and at least five (5) subjects with HER2-negative status have to be enrolled in the study for each tested protein dose. The tested injected dose 3000 μg.
Subjects withdrawn from the study for any reason will be replaced
Intervention: SPECT (Drug)
Outcomes
Primary Outcomes
SPECT-based [99mTc]Tc-G3-(G3S)3C uptake value in tumor lesions (counts) [123I] I-(HE)3-G3 uptake coinciding with tumor lesions will be assessed using single-photon emission computed tomography and measured in counts
Time Frame: 6 hours
SPECT-based \[99mTc\]Tc-G3-(G3S)3C uptake value in tumor lesions (counts) \[123I\] I-(HE)3-G3 uptake coinciding with tumor lesions will be assessed using single-photon emission computed tomography and measured in counts
SPECT-based [123I] I-(HE)3-G3 background uptake value (counts)
Time Frame: 6 hours
Focal uptake of \[123I\] I-(HE)3-G3 in the regions without pathological findings will be assessed with SPECT and measured in counts
Gamma camera-based whole-body [123I] I-(HE)3-G3 uptake value (%)
Time Frame: 6 hours
Whole-body \[123I\] I-(HE)3-G3 uptake coinciding with normal organs and tissues will be assessed using gamma camera and calculated as percentage (%) of the injected dose of the radiopharmaceutical
Tumor-to-background ratio (SPECT)
Time Frame: 6 hours
The SPECT-based tumor-to-background ratio will be calculated as follows: the value of \[123I\] I-(HE)3-G3 uptake coinciding with tumor lesions (counts) will be divided by the value of \[123I\] I-(HE)3-G3 uptake coinciding with the regions without pathological findings (counts)
Secondary Outcomes
- Safety attributable to [123I] I-(HE)3-G3 injections (laboratory tests) (% of cases with abnormal findings relative to baseline)(48 hours)
- Safety attributable to [123I] I-(HE)3-G3 injections (vital signs) (% of cases with abnormal findings relative to baseline)(48 hours)
- Safety attributable to [123I] I-(HE)3-G3 injections (physical examination) (% of cases with abnormal findings relative to baseline)(48 hours)
- Safety attributable to [123I] I-(HE)3-G3 injections (% of incidence and severity of adverse events)(48 hours)
- Safety attributable to [123I] I-(HE)3-G3 injections (ECG) (% of cases with abnormal findings relative to baseline)(48 hours)