Breast Cancer
Conditions
Brief summary
This single arm observational study will assess the duration and safety of treatment with trastuzumab in routine clinical practice in participants with early or metastatic HER2-positive breast cancer. Data will be collected from female participants treated with trastuzumab according to the Summary of Product Characteristics and local protocols. Duration of observation for each participant is from therapy initiation until permanent discontinuation for any cause.
Interventions
Trastuzumab according to local standard of care and in line with the current summary of product characteristics/ local guidelines
Sponsors
Study design
Eligibility
Inclusion criteria
* HER2-positive breast cancer * Treated with trastuzumab in accordance with Summary of Product Characteristics and local protocols * Written informed consent to data collection
Exclusion criteria
* Any contraindication to trastuzumab * Clinically relevant cardiovascular disorder or disease
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Treatment Duration With Trastuzumab in the Routine Clinical Practice | Baseline up to 5 years |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Percentage of Participants Who Received Previous Neoadjuvant Therapy | Baseline up to 5 years | As a neoadjuvant therapy, participants received chemotherapy alone, radiotherapy alone, hormonal therapy alone or combination of these therapies. Percentage of participants who received these therapies is reported. |
| Percentage of Participants Who Had Surgical Procedure for Breast Cancer | Baseline up to 5 years | Percentage of participants who underwent different types of surgical procedures for breast cancer are reported. Different types of surgical procedures included: breast-conserving surgery; mastectomy; and other (any other surgical procedure except breast-conserving surgery and mastectomy). |
| Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Baseline up to 5 years | — |
| Progression Free Survival | Baseline uo tp 5 years | Progression free survival was defined as the time from first dose of trastuzumab to disease progression as assessed by treating physician. Due to observational nature of the study, there was no specific method of assessment used to define progressive disease. Progressive disease was confirmed by treating physician, based on his/her assessment according to local practice. |
| Percentage of Participants by the Site of First Disease Progression | Baseline up to 5 years | — |
| Percentage of Participants Who Received Trastuzumab as Adjuvant Therapy of HER2 Positive Breast Cancer | Baseline up to 5 years | — |
Countries
Romania
Participant flow
Participants by arm
| Arm | Count |
|---|---|
| Participants With Breast Cancer Participants with early or metastatic HER2-positive breast cancer who were receiving treatment with trastuzumab according to local standard of care and in line with the current summary of product characteristics/ local guidelines, were observed (overall observation period: 5 years). Dosing and treatment duration of the trastuzumab were at the discretion of the treating physician. | 250 |
| Total | 250 |
Baseline characteristics
| Characteristic | Participants With Breast Cancer |
|---|---|
| Age, Continuous | 51.2600 years STANDARD_DEVIATION 10.61939 |
| Sex: Female, Male Female | 250 Participants |
| Sex: Female, Male Male | 0 Participants |
Adverse events
| Event type | EG000 affected / at risk |
|---|---|
| deaths Total, all-cause mortality | — / — |
| other Total, other adverse events | 17 / 250 |
| serious Total, serious adverse events | 12 / 250 |
Outcome results
Treatment Duration With Trastuzumab in the Routine Clinical Practice
Time frame: Baseline up to 5 years
Population: Number of participant analyzed=participants with data available for this outcome measure.
| Arm | Measure | Value (MEAN) | Dispersion |
|---|---|---|---|
| Participants With Breast Cancer | Treatment Duration With Trastuzumab in the Routine Clinical Practice | 401.90 Days | Standard Deviation 229.867 |
Percentage of Participants by the Site of First Disease Progression
Time frame: Baseline up to 5 years
Population: Number of participants analyzed=participants who presented disease progression
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Participants With Breast Cancer | Percentage of Participants by the Site of First Disease Progression | Brain | 32 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants by the Site of First Disease Progression | Breast | 9 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants by the Site of First Disease Progression | Liver | 27 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants by the Site of First Disease Progression | Lung | 21 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants by the Site of First Disease Progression | Bone | 11 percentage of participants |
Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation
Time frame: Baseline up to 5 years
Population: All enrolled participants
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Adverse event | 5 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Death | 2 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Progression of the disease | 18 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Administrative reasons | 30 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Doctor's decision | 40 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Discontinued Trastuzumab Therapy According to Reasons for Discontinuation | Other Than the Reasons Reported Above | 5 percentage of participants |
Percentage of Participants Who Had Surgical Procedure for Breast Cancer
Percentage of participants who underwent different types of surgical procedures for breast cancer are reported. Different types of surgical procedures included: breast-conserving surgery; mastectomy; and other (any other surgical procedure except breast-conserving surgery and mastectomy).
Time frame: Baseline up to 5 years
Population: Number of participants analyzed=participants who were evaluable for this outcome measure
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Participants With Breast Cancer | Percentage of Participants Who Had Surgical Procedure for Breast Cancer | Breast-conserving surgery | 21.2 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Had Surgical Procedure for Breast Cancer | Mastectomy | 73.2 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Had Surgical Procedure for Breast Cancer | Other | 0.4 percentage of participants |
Percentage of Participants Who Received Previous Neoadjuvant Therapy
As a neoadjuvant therapy, participants received chemotherapy alone, radiotherapy alone, hormonal therapy alone or combination of these therapies. Percentage of participants who received these therapies is reported.
Time frame: Baseline up to 5 years
Population: Number of participants analyzed=participant with data available for this outcome
| Arm | Measure | Group | Value (NUMBER) |
|---|---|---|---|
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Chemotherapy and Radiotherapy | 28 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Chemotherapy and Radiotherapy and Hormonal therapy | 28 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Chemotherapy and Hormonal therapy | 8 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Radiotherapy and Hormonal therapy | 7 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Chemotherapy alone | 21 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Radiotherapy alone | 6 percentage of participants |
| Participants With Breast Cancer | Percentage of Participants Who Received Previous Neoadjuvant Therapy | Hormonal therapy alone | 2 percentage of participants |
Percentage of Participants Who Received Trastuzumab as Adjuvant Therapy of HER2 Positive Breast Cancer
Time frame: Baseline up to 5 years
Population: All enrolled participants
| Arm | Measure | Value (NUMBER) |
|---|---|---|
| Participants With Breast Cancer | Percentage of Participants Who Received Trastuzumab as Adjuvant Therapy of HER2 Positive Breast Cancer | 82 percentage of participants |
Progression Free Survival
Progression free survival was defined as the time from first dose of trastuzumab to disease progression as assessed by treating physician. Due to observational nature of the study, there was no specific method of assessment used to define progressive disease. Progressive disease was confirmed by treating physician, based on his/her assessment according to local practice.
Time frame: Baseline uo tp 5 years
Population: Number of participants analyzed=participants who presented progression of disease
| Arm | Measure | Value (MEDIAN) |
|---|---|---|
| Participants With Breast Cancer | Progression Free Survival | 324 days |