Study of Human Epidermal Growth Receptor (HER2) Status Evaluation in Breast Cancer Pathology Samples

January 26, 2016 updated by: Hoffmann-La Roche

Immunohistochemical HER2 Status Evaluation In Breast Cancer Pathology Samples: A Multicenter, Parallel-Design Concordance Study

A multi-center non-interventional, in-vitro trial for evaluation of concordance of the results for Human Epidermal Growth Factor Receptor 2 (HER2) expression by the Immunohistochemical (IHC) method in pathological samples collected from participants with breast cancer.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Detailed Description

For accurate selection of participants who will be treated with anti-HER2, primary crucial thing to do is the right identification of HER2 in breast tumor cells. The advantages and disadvantages of IHC and In-Situ Hybridization (ISH) for the detection of HER2 status is still disputable. It is generally agreed on that HER2 study should be applied on all invasive breast cancer participants. It can be used together with IHC which measures HER2 protein expression or ISH which assesses HER2 gene amplification. With regard to IHC, the inconsistency of sensitivity and specificity of marketed antibodies, differences in interpretation and technical artifacts cause problems in diagnosis on occasion. There is not enough study on reasons which cause the consistence and discrepancies between laboratories in HER2 detection with IHC method.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
30

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey
      • Ankara, Turkey, 06230
        • Ankara University Medical Faculty
      • Istanbul, Turkey, 34093
        • Istanbul University Istanbul Medical Faculty
      • Istanbul, Turkey, 34098
        • Istanbul University Cerrahpasa Medical Faculty
      • Izmir, Turkey, 35100
        • Ege University Medical Faculty
      • Izmir, Turkey, 35210
        • Dokuz Eylul University Medical Faculty

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 74 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

Breast tissue samples from female participants with a breast cancer diagnosis

Description

Inclusion Criteria:

Samples that fulfill all of the criteria will be evaluated for the study.

  • Samples of women aged greater than or equal to (>/=) 18 and less than (<) 75 years
  • Tumor samples already diagnosed based on the IHC score of 0 to +3
  • Samples of primary lesions excluding lymph nodes
  • 10 percent (%) neutral buffered formalin-fixed and paraffin embedded tissue samples

Exclusion Criteria:

Samples that fulfill any of the criteria below will not be included in the study.

  • Non-invasive ductal carcinoma (NOS) samples
  • Tru-cut biopsies
  • Non-breast cancer pathological samples

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Breast Cancer Pathology Samples
Breast cancer pathology samples were evaluated for a period of 70 days.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Immunohistochemical (IHC) Evaluation Between Site A and Others (Sites B, C, D and E)
Time Frame: Up to 70 days
IHC is a staining process performed on fresh/frozen breast cancer tissue. IHC is used to show whether or not the cancer cells have Human Epidermal Growth Receptor (HER2) and/or hormone receptors on their surface. The IHC test gives a score of 0 to 3+ that measures the amount of HER2 receptor protein on the surface of cells in a breast cancer tissue sample. Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days
Kappa Coefficient (K) as a Measure of Agreement Between Site A and Others (Sites B, C, D and E) Concerning the IHC Test of Breast Tissue Samples
Time Frame: Up to 70 days
Inter-laboratory variation between the sites was assessed using Kappa test, K values were interpreted as follows: a) less than (<) 0: less than chance agreement, b) 0.01-0.20: slight agreement, c) 0.21-0.40: fair agreement, d) 0.41-0.60: moderate agreement, e) 0.61-0.80: substantial agreement, and f) 0.81-0.99: almost perfect agreement.
Up to 70 days
Percentage of Participants With IHC Evaluation Between Sites B and Others (Sites C, D and E)
Time Frame: Up to 70 days
IHC is a staining process performed on fresh/frozen breast cancer tissue. IHC is used to show whether or not the cancer cells have HER2 and/or hormone receptors on their surface. The IHC test gives a score of 0 to 3+ that measures the amount of HER2 receptor protein on the surface of cells in a breast cancer tissue sample. Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days
Kappa Coefficient as a Measure of Agreement Between Site B and Others (Sites C, D and E) Concerning the IHC Test of Breast Tissue Samples
Time Frame: Up to 70 days
Inter-laboratory variation between the sites was assessed using Kappa test, K values to be interpreted as follows: a) <0: less than chance agreement, b) 0.01-0.20: slight agreement, c) 0.21-0.40: fair agreement, d) 0.41-0.60: moderate agreement, e) 0.61-0.80: substantial agreement, and f) 0.81-0.99: almost perfect agreement.
Up to 70 days
Percentage of Participants With IHC Evaluation Between Site C and Others (Sites D and E)
Time Frame: Up to 70 days
IHC is a staining process performed on fresh/frozen breast cancer tissue. IHC is used to show whether or not the cancer cells have HER2 and/or hormone receptors on their surface. The IHC test gives a score of 0 to 3+ that measures the amount of HER2 receptor protein on the surface of cells in a breast cancer tissue sample. Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days
Kappa Coefficient as a Measure of Agreement Between Sites C, D and E Concerning the IHC Test of Breast Tissue Samples
Time Frame: Up to 70 days
Inter-laboratory variation between the sites was assessed using Kappa test, K values to be interpreted as follows: a) <0: less than chance agreement, b) 0.01-0.20: slight agreement, c) 0.21-0.40: fair agreement, d) 0.41-0.60: moderate agreement, e) 0.61-0.80: substantial agreement, and f) 0.81-0.99: almost perfect agreement.
Up to 70 days
Percentage of Participants With IHC Evaluation Between Abroad and Trial Sites (A, B, C, D and E)
Time Frame: Up to 70 days
IHC is a staining process performed on fresh/frozen breast cancer tissue. IHC is used to show whether or not the cancer cells have HER2 and/or hormone receptors on their surface. The IHC test gives a score of 0 to 3+ that measures the amount of HER2 receptor protein on the surface of cells in a breast cancer tissue sample. Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days
Kappa Coefficient as a Measure of Agreement Between Abroad and Trial Sites (A, B, C, D and E) Concerning the IHC Test of Breast Tissue Samples
Time Frame: Up to 70 days
Inter-laboratory variation between the sites was assessed using Kappa test, K values to be interpreted as follows: a) <0: less than chance agreement, b) 0.01-0.20: slight agreement, c) 0.21-0.40: fair agreement, d) 0.41-0.60: moderate agreement, e) 0.61-0.80: substantial agreement, and f) 0.81-0.99: almost perfect agreement.
Up to 70 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Diagnosis of Primary Tumor
Time Frame: Up to 70 days
Primary tumor diagnosis was classified into invasive ductal carcinoma, invasive ductal carcinoma + integrin linked kinase (ILK) antibody and mixed (invasive ductal + lobular) and reported.
Up to 70 days
Percentage of Participants With Initial Tumor Node Metastasis (TNM) Stage According to Council Decision
Time Frame: Up to 70 days
TNM system is based on size of primary tumor (T), amount of spread to lymph nodes (N) and presence of metastasis (M). T1: tumor ≤20 millimeters (mm), T2: tumor >20 mm to ≤50 mm, T3: >50 mm and TX: tumor cannot be assessed. N0: no lymph node metastasis, N1: metastasis to ipsilateral level I, II axillary lymph nodes, N2: N1 metastasis that is clinically fixed/matted or in clinically detected ipsilateral internal mammary nodes, N3: metastases in ipsilateral infraclavicular lymph nodes, with/without level I, II axillary node involvement, or in clinically detected ipsilateral internal mammary lymph nodes and clinically evident level I, II axillary lymph node metastasis; or metastasis in ipsilateral supraclavicular lymph nodes, NX: Regional lymph nodes cannot be assessed. M0: no clinical/radiographic evidence of distant metastasis, M1: distant detectable metastases as determined by clinical and radiographic means and/or histologically proven >0.2 mm, and MX: metastases cannot be assessed.
Up to 70 days
Percentage of Participants With Pathological Score
Time Frame: Up to 70 days
Modified Bloom-Richardson Grade scoring system was used which considers the amount of glandular/tubular differentiation, nuclear features and the mitotic activity of tumor cells. Tubular score (TS) 1: >75 percent (%) of tumor area forming tubular structures, TS 2: 10% to 75% of tumor area forming tubular structures, TS 3: <10% of tumor area forming tubular structures. Nuclear score (NS) 1: nuclei small with little increase in size in comparison with normal breast epithelial cells, regular outlines, uniform nuclear chromatin, little variation in size, NS 2: cells larger than normal with open vesicular nuclei, visible nucleoli, and moderate variability in both size and shape, NS 3: Vesicular nuclei, often with prominent nucleoli, exhibiting marked variation in size and shape, occasionally with very large and bizarre forms. Mitosis score (MS) 1: ≤7 mitoses per 10 high power fields, MS 2: 8-14 mitoses per 10 high power fields and MS 3: ≥15 mitoses per 10 high power fields.
Up to 70 days
Percentage of Participants With Pathological Grade
Time Frame: Up to 70 days
Modified Bloom-Richardson Grade scoring system was used which considers the amount of glandular/tubular differentiation, nuclear features and the mitotic activity of tumor cells. Tubular, Nuclear and Mitosis scoring pattern was discussed in outcome 11, each score was added to give a final total score ranging from 3-9. Tumors with 3, 4 or 5 points are classified as being of low malignancy or Grade I, those with 6 or 7 points of intermediate malignancy or Grade II, and those with 8 or 9 points of high malignancy or Grade III.
Up to 70 days
Percentage of Participants With Different Hormone Receptors
Time Frame: Up to 70 days
Presence of hormone receptors was examined by the amount of uptake of estrogen and progesterone hormones when analyzed using IHC staining procedure.
Up to 70 days
Percentage of Participants With Specified Density of Hormone Receptors
Time Frame: Up to 70 days
The specific density of hormone receptors was examined by the amount of uptake of estrogen and progesterone hormones when analyzed using IHC staining procedure. Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days
Percentage of Participants With HER2 Test Form Based on Country
Time Frame: Up to 70 days
Reference site was considered as Abroad and the tests were performed in a laboratory in Amsterdam, Netherlands. A total of 150 data registration forms (120 forms from trial sites [24 from each site] and 30 from the reference site) were collected.
Up to 70 days
Percentage of Participants With HER2 Test Form Based on Different Automated Slide Stainers
Time Frame: Up to 70 days
Different slide stainers like Ventana, Ventana Benchmark 4XT, Ventana Benchmark Ultra and Ventana Benchmark XT were used to report HER2 test results on data registration forms (120 forms from trial sites [24 from each site] and 30 from the reference site).
Up to 70 days
Percentage of Participants With HER2 Test Form Based on Antigen Retrieval
Time Frame: Up to 70 days
Fixation of tissue samples cross-link proteins and masks antigenic sites; antigen retrieval process was performed before IHC staining in order to reverse the masking of antigenic sites. Antigen retrieval process was performed in this study using the following solutions: 1 hour Cell Conditioning 1 (CC1), 30 minutes (min) CC1 mild, 64 min CC1, CC1 Ethylenediaminetetraacetic acid (EDTA) standard, and Cell Conditioning 2 (CC2) 30 min.
Up to 70 days
Percentage of Participants With HER2 Test Form Based on Primary Antibody
Time Frame: Up to 70 days
The primary antibodies included; Biocabe EP 10454, Cerb B2 (SP3 clone), Her2 Neu (SP3) Cell marque, Neomarkers (thermo) cerb B2-Ab-17 and Thermo SP3.
Up to 70 days
Percentage of Participants With Different IHC Results
Time Frame: Up to 70 days
The IHC test gives a score of 0 to 3+ that measures the amount of HER2 receptor protein on the surface of cells in a breast cancer tissue sample. If the score is 0 to 1+, it's called "HER2 negative." If the score is 2+, it's called "borderline." A score of 3+ is called "HER2 positive." Score 0: cells free from immune staining, score 1 (+): is concluded in the case of stains not completely membranous and which do not surround the membranes regardless of quantity in the cells, or weak stains surrounding the entire membrane in less than 10% of the cells. Score 2 (++): is concluded in the presence of a moderate staining surrounding the cytoplasmic membrane in at least 10%, or strong membranous staining in less than 30% of the invasive carcinoma cells. Score 3 (+++): is concluded where IHC yields strong staining surrounding the entire cytoplasmic membrane in at least 30% of the invasive carcinoma cells.
Up to 70 days

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Hoffmann-La Roche

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2014

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
October 1, 2014

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
October 1, 2014

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
October 19, 2015

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 19, 2015

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
October 20, 2015

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
February 22, 2016

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
January 26, 2016

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2016

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ML28731

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Breast Cancer

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings