HER2-positive Breast CancerPhase 2NCT03755141
Efficacy and Safety of Trastuzumab Biosimilar (Herzuma®) Plus Treatment of Physician's Choice (TPC) in Patients With HER-2 Positive Metastatic Breast Cancer
A Phase 2 study testing Herzuma in people with HER2-positive Breast Cancer and Metastatic Breast Cancer, run by National Cancer Center, Korea at 1 site in South Korea.
Trial summary
Trastuzumab combined with chemotherapy has been approved as the first line therapy in HER2+ metastatic breast cancer. When patients experienced progression beyond trastuzumab containing therapy, T-DM1 is considered as the second line therapy followed by trastuzumab plus any other chemotherapeutic agents or lapatinib… Read more about this study
- Who is it for?
- Ages 19 years and older
- Conditions the study is for
- HER2-positive Breast Cancer, Metastatic Breast Cancer
- What is being tested?
- Herzuma
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 109 participants
- Where
- 1 siteSouth Korea
- Study dates
- 15 Dec 2018to 30 Jun 2022
- Phase
- Phase 2
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patient is an adult, ≥ 19 years old at the time of informed consent.
- Patient has histologically and/or cytologically confirmed diagnosis of HER2-positive breast cancer (HER-2/neu 3+ as defined by immunohistochemistry and/or HER-2/neu gene amplification as defined by fluorescence in situ hybridization).
- Metastatic or unresectable disease documented on diagnostic imaging studies.
- Prior 2 or more HER-2 directed therapy for metastatic disease is mandatory.
- Patient must have at least one measurable or evaluable lesion according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v 1.1)
- Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 to 1
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- Adequate bone marrow and organ function including: a) WBC ≥ 3500/ml; b) Platelets ≥ 100,000/ul; c) Hemoglobin >9.0 g/dl; d) Total bilirubin ≤ 1.5x ULN; e) AST and ALT < 2.5 x ULN; f) Alkaline phosphatase <2.5x ULN; g) Creatinine ≤ 1.5x ULN or CCr >60 ml/min for patients with abnormal serum Cr level function.
- Life expectance longer than 3 months
- Patient has an adequate left ventricular ejection function of at least 55 % at baseline, as measured by echocardiography.
- Written informed consent
Who cannot join
- Patient is pregnant or lactating, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive human chorionic gonadotropin (hCG) laboratory test.
- Patient has symptomatic and unstable CNS metastases, except for treated brain metastases. Treated brain metastases are defined as having no evidence of progression or hemorrhage after treatment and no ongoing requirement for dexamethasone, as ascertained by clinical examination and brain imaging (MRI or CT) during the screening period. Anticonvulsants (stable dose) are allowed.
- Active and clinically significant bacterial, fungal or viral infection including hepatitis B (HBV), hepatitis C (HCV), known human immunodeficiency virus syndrome (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness. Baseline viral assessment is not required in patients with no known infection.
- Major surgery within 4 weeks of first dose of investigational product or not fully recovered from any side effects of previous procedures.
- Any other malignancy within 3 years prior to first dose of investigational product except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the cervix.
- QTc interval >480 msec (based on the mean value of the triplicate ECGs), family or personal history of long or short QT syndrome, Brugada syndrome or known history of QTc prolongation or Torsade de Pointes.
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- Any of the following within 6 months of first dose of investigational product myocardial infarction, severe/unstable angina, ongoing cardiac dysrhythmias of NCI CTCAE v. 5.0 Grade ≤2, atrial fibrillation of any grade, coronary/peripheral artery bypass graft, symptomatic congestive heart failure, cerebrovascular accident including transient ischemic attack, or symptomatic pulmonary embolism.
- History of symptomatic interstitial pneumonitis.
- Patients with a history of hypersensitivity reactions to trastuzumab, rodent-derived proteins, or components of trastuzumab.
- Other severe acute or chronic medical or psychiatric condition, including recent (within the past year) or active suicidal ideation or behavior, or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the patient inappropriate for entry into this study.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Open Label, Multicenter, Prospective Phase II Study to Investigate the Efficacy and Safety of Trastuzumab Biosimilar (Herzuma®) Plus Treatment of Physician's Choice (TPC) in Patients With HER-2 Positive Metastatic Breast Cancer Who Progressed After 2 or More HER-2 Directed Chemotherapy
Trastuzumab combined with chemotherapy has been approved as the first line therapy in HER2+ metastatic breast cancer. When patients experienced progression beyond trastuzumab containing therapy, T-DM1 is considered as the second line therapy followed by trastuzumab plus any other chemotherapeutic agents or lapatinib plus capecitabine.
A biosimilar drug is a biological product that is highly similar to a licensed biological product, with no clinically meaningful differences in terms of safety, purity, or potency. Several trastuzumab biosimilar products have been approved after efficacy and safety studies which were usually as the first line setting with taxane combined.
Read more
Even though trastuzumab biosimilar drugs demonstrated similarity of equivalence with trastuzumab in these studies, the efficacy of their second use beyond progression with other chemotherapeutic agents has not been tested yet. In addition, the investigators don't have any data regarding possible cross reactivity between trastuzumab and trastuzumab biosimilar drugs.
In this study, the investigators plan multicenter phase II clinical trial to test the efficacy, safety and immunogenicity of trastuzumab biosimilar, Herzuma® in combination with TPC in patients with HER2+ metastatic breast cancer who progressed after 2 or more HER-2 directed chemotherapy.
- Being tested
- Herzuma
- Medical subject headings
- Breast Neoplasms
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
HerzumaDrug
Herzuma + Treatment of Physician's Choice
| Study group | Role | What they receive |
|---|---|---|
| Herzuma | Experimental | Herzuma + TPC Receives: Drug: Herzuma |
What is being measured
The primary outcome is the main question the study is designed to answer.
Progression Free Survival
defined as the time from study entry until the first observation of existing disease progression according to the above schedule or death due to any cause.
Measured: 6 months after last patient enrollment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Nov 2018
- Study start15 Dec 2018
- Primary completion24 Aug 2021
- Study completion30 Jun 2022
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Other trials for HER2-positive Breast CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 2
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 109 participants (actual)
Sponsor and investigators
- Lead sponsor
- National Cancer Center, Korea
- Sponsor type
- Other government
- Responsible party
- Principal investigator, In Hae Park, National Cancer Center, Korea
- Investigators
- In Hae Park, MD, Principal investigator, Korea University Guro Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03755141
- Sponsor's protocol ID
- KM10B
- Status last verified
- Jul 2025
- First submitted
- 26 Nov 2018
- Last updated
- 22 Jul 2025
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided: safety profiles, efficacy data
Study at a glance
From the registry record, last updated by the sponsor on 22 Jul 2025. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Open Label, Multicenter, Prospective Phase II Study to Investigate the Efficacy and Safety of Trastuzumab Biosimilar (Herzuma®) Plus Treatment of Physician's Choice (TPC) in Patients With HER-2 Positive Metastatic Breast Cancer Who Progressed After 2 or More HER-2 Directed Chemotherapy
- ClinicalTrials.gov ID
- NCT03755141
- Acronym / sponsor ID
- KM10B
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 109 participants (actual)
- Lead sponsor
- National Cancer Center, KoreaOther government
- Study start
- 15 Dec 2018 (actual)
- Primary completion
- 24 Aug 2021 (actual)
- Study completion
- 30 Jun 2022 (actual)
- First posted
- 27 Nov 2018 (actual)
- Results
- Posted 22 Jul 2025
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Trastuzumab combined with chemotherapy has been approved as the first line therapy in HER2+ metastatic breast cancer. When patients experienced progression beyond trastuzumab containing therapy, T-DM1 is considered as the second line therapy followed by trastuzumab plus any other chemotherapeutic agents or lapatinib plus capecitabine.
A biosimilar drug is a biological product that is highly similar to a licensed biological product, with no clinically meaningful differences in terms of safety, purity, or potency. Several trastuzumab biosimilar products have been approved after efficacy and safety studies which were usually as the first line setting with taxane combined.
Even though trastuzumab biosimilar drugs demonstrated similarity of equivalence with trastuzumab in these studies, the efficacy of their second use beyond progression with other chemotherapeutic agents has not been tested yet. In addition, the investigators don't have any data regarding possible cross reactivity between trastuzumab and trastuzumab biosimilar drugs.
In this study, the investigators plan multicenter phase II clinical trial to test the efficacy, safety and immunogenicity of trastuzumab biosimilar, Herzuma® in combination with TPC in patients with HER2+ metastatic breast cancer who progressed after 2 or more HER-2 directed chemotherapy.
Study design
- Primary purpose
- Treatment
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Herzuma | Experimental | Drug: HerzumaHerzuma + TPC |
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (10 listed)
- Patient is an adult, ≥ 19 years old at the time of informed consent.
- Patient has histologically and/or cytologically confirmed diagnosis of HER2-positive breast cancer (HER-2/neu 3+ as defined by immunohistochemistry and/or HER-2/neu gene amplification as defined by fluorescence in situ hybridization).
- Metastatic or unresectable disease documented on diagnostic imaging studies.
- Prior 2 or more HER-2 directed therapy for metastatic disease is mandatory.
- Patient must have at least one measurable or evaluable lesion according to Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v 1.1)
Key exclusion criteria (10 listed)
- Patient is pregnant or lactating, where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive human chorionic gonadotropin (hCG) laboratory test.
- Patient has symptomatic and unstable CNS metastases, except for treated brain metastases. Treated brain metastases are defined as having no evidence of progression or hemorrhage after treatment and no ongoing requirement for dexamethasone, as ascertained by clinical examination and brain imaging (MRI or CT) during the screening period. Anticonvulsants (stable dose) are allowed.
- Active and clinically significant bacterial, fungal or viral infection including hepatitis B (HBV), hepatitis C (HCV), known human immunodeficiency virus syndrome (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness. Baseline viral assessment is not required in patients with no known infection.
- Major surgery within 4 weeks of first dose of investigational product or not fully recovered from any side effects of previous procedures.
- Any other malignancy within 3 years prior to first dose of investigational product except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the cervix.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| HerzumaHerzuma + Treatment of Physician's Choice | Drug | Herzuma |
Primary outcome
Progression Free Survival
Time frame: 6 months after last patient enrollment
defined as the time from study entry until the first observation of existing disease progression according to the above schedule or death due to any cause.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 22 Jul 2025.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Individual participant dataSharing planned: Undecided. safety profiles, efficacy data
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
In Hae Park, MD principal investigator
Korea University Guro Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing Herzuma in people with HER2-positive Breast Cancer and Metastatic Breast Cancer, run by National Cancer Center, Korea at 1 site in South Korea.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 10 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 22 Jul 2025. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in South Korea. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Yes. Results are posted in the registry (first posted 22 Jul 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Progression Free Survival (time frame: 6 months after last patient enrollment). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jul 2025; AzTrials last refreshed its copy on 8 Nov 2026.