Skip to content

Efficacy and Safety of the Proposed Biosimilar Pertuzumab (PERT-IJS) Versus EU-Perjeta® Along With Trastuzumab and Chemotherapy (Carboplatin and Docetaxel) as Neoadjuvant Treatment in Chemotherapy naïve Patients With Early Stage or Locally Advanced HR Negative and HER2 Positive Breast Cancer

A Multicenter, Double-blind, Randomized, Parallel-group, Phase 3 Study to Compare the Efficacy and Safety of the Proposed Biosimilar PERT-IJS and EU-Perjeta® Along With Trastuzumab and Chemotherapy (Carboplatin and Docetaxel) as Neoadjuvant Treatment in Patients With Hormone Receptor Negative (HR-ve) Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Early Stage or Locally Advanced Breast Cancer

Status
Terminated
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06038539
Enrollment
55
Registered
2023-09-15
Start date
2025-01-06
Completion date
2025-12-23
Last updated
2026-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

HR Negative HER2 Positive Early Breast Cancer or Locally Advanced Breast Cancer Patients

Keywords

Locally advanced breast cancer patient, HR negative HER2-positive Early breast cancer, PERT-IJS, Pertuzumab, Trastuzumab, Neoadjuvant treatment

Brief summary

To compare the efficacy and safety of PERT-IJS (Proposed biosimilar Pertuzumab) plus trastuzumab and chemotherapy (carboplatin and docetaxel) versus EU-Perjeta plus trastuzumab and chemotherapy (carboplatin and docetaxel) in neoadjuvant treatment of patients with HR-ve and HER-2 positive early stage or locally advanced breast cancer.

Detailed description

This study is designed to compare the efficacy and safety of proposed biosimilar PERT-IJS plus trastuzumab, carboplatin and docetaxel versus EU-Perjeta plus trastuzumab, carboplatin and docetaxel in neoadjuvant treatment of HR-ve HER2-positive Early Breast Cancer (EBC) (invasive breast cancer without distant metastasis) or locally advanced breast cancer patients.

Interventions

BIOLOGICALPERT-IJS plus trastuzumab, carboplatin and docetaxel

PERT-IJS is a monoclonal antibody, which has been developed by Biocon Biologics (earlier in collaboration with Viatris) as a proposed biosimilar to European Union (EU)-approved and United States (US) licensed Perjeta.

BIOLOGICALPerjeta plus trastuzumab, carboplatin and docetaxel

EU Perjeta (Pertuzumab) , an antineoplastic agent, is a recombinant humanized monoclonal antibody that specifically targets sub-domain 2 of the extracellular domain of Human Epidermal Growth Factor Receptor 2 (HER2), blocking heterodimerization of HER2 with other members of the receptor family, including epidermal growth factor, Human Epidermal Growth Factor Receptor 3 (HER3) and Human Epidermal Growth Factor Receptor 4 (HER4).

Sponsors

Biocon Biologics UK Ltd
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Intervention model description

Parallel Assignment

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

1. Patient willing and able to sign informed consent and to follow the protocol requirements 2. Female patients aged ≥ 18 years at the time of Screening 3. Patient with Eastern Cooperative Oncology Group (ECOG) Performance Status \< 2 4. Patients with breast cancer that meets the following criteria: 1. A known case of histologically confirmed invasive breast carcinoma with a primary tumor size of \> 2 cm by standard local assessment technique 2. stage at presentation: early stage (T2-3, N0-1, M0) or locally advanced (T2-3, N2 or N3, M0; T4a-c, any N, M0) or inflammatory (T4d, any N, M0) 5. Patients with HER2 overexpression by Immunohistochemistry (IHC) (defined as IHC 3+, or IHC 2+ with Fluorescence In Situ Hybridization (FISH) confirmation) as per the American Society of Clinical Oncology/College of American Pathologist (ASCO-CAP) guidelines prior to Screening and confirmed centrally before randomization 6. Patients with known HR-ve status (ER-negative and PR-negative) as per local laboratory prior to Screening and confirmed centrally before randomization 7. Patient willing to undergo mastectomy or breast-conserving surgery after neoadjuvant therapy 8. Patient who completes all necessary baseline laboratory and radiologic investigations prior to randomization as per Schedule of assessment (SoA) 9. Patient with baseline left ventricular ejection fraction (LVEF) ≥ 55% measured by echocardiography (ECHO; preferred) or multiple-gated acquisition (MUGA) scan 10. Patient is eligible to participant if she is not pregnant, not breastfeeding, and at least one of the following conditions applies:

Exclusion criteria

1. Patients with metastatic or recurrent bilateral breast cancer, or bilateral breast cancer 2. Patients with a history of concurrent or previously treated non-breast malignancies. A patient with previous invasive non-breast cancer is eligible provided she has been disease free for more than 5 years 3. Patients who have received any previous systemic therapy (including chemotherapy, immunotherapy, HER2-targeted agents, and antitumor vaccines) for treatment or prevention of breast cancer, or radiation therapy for treatment of cancer 4. Concurrent anti-cancer treatment in another investigational study, including hormone therapy or immunotherapy 5. Major surgical procedure that is unrelated to breast cancer within 4 weeks prior to randomization or from which the patient has not fully recovered 6. Serious cardiac illness or medical condition including but not limited to the following as per Investigator's discretion: 1. Patients with ≥ Class II stage of heart failure as per New York Heart Association Classification 2. High risk uncontrolled arrhythmia, such as atrial tachycardia with a heart rate \> 100 bpm at rest, significant ventricular arrhythmia (e.g., ventricular tachycardia) required treatment, or higher-grade atrioventricular (AV) block (i.e., Mobitz II second-degree AV block or third-degree AV block) 3. History of myocardial infarction or unstable angina pectoris within 1 year of randomization or angina pectoris requiring anti-anginal medication 4. Evidence of transmural infarction on ECG 5. Clinically significant valvular heart disease 6. Poorly controlled hypertension (systolic blood pressure \> 180 mmHg and/or diastolic blood pressure \> 100 mmHg) in patients on anti-hypertensive medications 7. Other concurrent serious diseases that may interfere with study primary endpoint and other study assessments, including, but not limited to, severe pulmonary conditions/illness, active liver disease (for example, active viral hepatitis infection \[i.e., hepatitis B or hepatitis C\]), autoimmune disorders, history of or known patient of sclerosing cholangitis, or infection with Human immune deficiency virus (HIV) 8. Patients with a history of any contraindication to the study treatment regimens 9. Any of the following abnormal laboratory test results prior to randomization: 1. Total bilirubin \> upper limit of normal (ULN) or, for cases of known Gilbert's syndrome, total bilirubin \> 2 × ULN 2. Aspartate aminotransferase and/or alanine aminotransferase \> 1.5 × ULN, if considered clinically significant by Investigator 3. Alkaline phosphatase \>2.5 × ULN, if considered clinically significant by Investigator 4. Serum creatinine \> 1.5 × ULN 5. Creatinine clearance \< 60 mL/min 6. Total white blood cells count \< 2500 cells/μL 7. Absolute neutrophil count \< 2000 cells/μL 8. Platelet count \< 100,000 cells/μL 10. Participation in any clinical study with an investigational drug, biologic, or device within 1 month prior or within five half-lives (of the drug/ biologic) prior to the enrolment (whichever is longer) 11. Have taken any live vaccines 30 days prior to the 1st dose of study treatment 12. Any known hypersensitivity to any of the study medications, any of the ingredients or excipients of these medications, or benzyl alcohol 13. Patients unwilling to follow the study requirements. 14. Presence of an uncontrolled, unstable, clinically significant medical condition that, in the opinion of the Investigator, may interfere with the interpretation of efficacy and safety parameters or has a medical condition for which the treatment should take precedence over study participation or will interfere with study participation \-

Design outcomes

Primary

MeasureTime frameDescription
Efficacy endpoint - Total pathologic complete response between Treatment arm A and Treatment Arm BWeek 18Total pathologic complete response (tpCR; ypT0/Tis,ypN0) in breast and axillary nodes after neoadjuvant treatment by Independent Review Committee (IRC)

Secondary

MeasureTime frameDescription
Safety Endpoint-physical examinationweek 18Number of subjects with clinically significant changes in Physical examination
Immunogenicity Endpointweek 18Immunogenicity (anti-drug antibodies (ADA) and neutralizing antibodies (nAb) titers)
Safety Endpoint: treatment-emergent adverse events and serious adverse events of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta1 yearIncidence and severity of treatment emergent adverse events (TEAEs) and serious adverse events (SAEs)
Safety Endpoint: left ventricular ejection fraction of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout1 yearIncidence of patients with a decline in left ventricular ejection fraction (LVEF) of ≥ 10% from baseline to \< 50%
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS -throughout compared to patients randomized to EU-Perjeta throughout- Vital signs1 yearNumber of subjects with clinically significant changes in Vital signs
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout- ECG PR Interval1 yearNumber of subjects with clinically significant changes in ECG PR Interval
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout-ECG QRS Interval1 yearNumber of subjects with clinically significant changes in ECG QRS Interval
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout-ECG QT Interval1 yearNumber of subjects with clinically significant changes in ECG QT Interval
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout- ECG QTc Interval1 yearNumber of subjects with clinically significant changes in ECG QTc Interval
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout-Clinical laboratory assessments1 yearNumber of subjects with clinically significant changes in Clinical laboratory assessments
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout- Pregnancy test1 yearNumber of subjects with Pregnancy outcome
Safety Endpoint: Routine safety parameters of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout-Physical examination1 yearNumber of subjects with clinically significant changes in Physical examination
Immunogenicity Endpoint of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout1 yearImmunogenicity (anti-drug antibodies (ADA) and neutralizing antibodies (nAb) titers)
Safety Endpoint: treatment-emergent adverse events and serious adverse eventsweek 18Incidence and severity of treatment emergent adverse events (TEAEs) and serious adverse events (SAEs)
Safety Endpoint: left ventricular ejection fractionweek 18Incidence of patients with a decline in left ventricular ejection fraction (LVEF) of ≥ 10% from baseline to \< 50%
Safety Endpoint: Vital signsweek 18Number of subjects with clinically significant changes in Vital signs
Safety Endpoint-ECG PR Intervalweek 18Number of subjects with clinically significant changes in ECG PR Interval
Safety Endpoint-ECG QRS Intervalweek 18Number of subjects with clinically significant changes in ECG QRS Interval
Safety Endpoint-ECG QT Intervalweek 18Number of subjects with clinically significant changes in ECG QT Interval
Safety Endpoint- ECG corrected QT interval (QTc) Intervalweek 18Number of subjects with clinically significant changes in ECG QTc Interval
Safety Endpoint-clinical laboratory assessmentsweek 18Number of subjects with clinically significant changes in Clinical laboratory assessments
Efficacy endpoint-Total pathologic complete response between Treatment Arm A and Treatment Arm B as neoadjuvant treatment regimenWeek 18Total pathologic complete response (tpCR; ypT0/Tis, ypN0) in breast and axillary nodes after neoadjuvant treatment by local histopathologist
Efficacy endpoint: Pathologic complete response between Treatment Arm A and Treatment Arm BWeek 18Pathologic complete response (pCR; ypT0/ypN0) after neoadjuvant treatment by IRC and local histopathologist
Efficacy endpoint- Breast pathologic complete response between Treatment Arm A and Treatment Arm B as neoadjuvant treatment regimenWeek 18Breast pathologic complete response (bpCR; ypT0/Tis) after neoadjuvant treatment by IRC and local histopathologist
Efficacy endpoint-Objective response rate between Treatment Arm A and Treatment Arm B as neoadjuvant treatment regimenWeek 18Objective response rate (ORR) after neoadjuvant treatment in accordance with Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1)
Efficacy endpoint-Event free survival rate between Treatment Arm A and Treatment Arm B as neoadjuvant treatment regimenWeek 18Event free survival (EFS) rate
Efficacy endpoint- Overall survival rate between Treatment Arm A and Treatment Arm B as neoadjuvant treatment regimenWeek 18Overall survival (OS) rate
Efficacy endpoint-EFS rate of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout1 YearEFS rate
Efficacy endpoint - Overall Survival rate of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout1 YearOverall survival rate
Efficacy endpoint - Overall Response Rate of patients randomized to PERT-IJS throughout compared to patients randomized to EU-Perjeta throughout1 YearOverall Response Rate
Efficacy Endpoint: EFS rate after the single switch from EU-Perjeta to PERT-IJS+trastuzumab compared with those continuing on Treatment B1 yearEFS rate after switching of treatment from EU-Perjeta to PERT-IJS + trastuzumab
Efficacy Endpoint: Disease free survival rate after the single switch from from EU-Perjeta to PERT-IJS+trastuzumab compared with those continuing on EU-Perjeta+trastuzumab1 yearDisease free survival (DFS) rate after switching of treatment from EU-Perjeta to PERT-IJS + trastuzumab versus those continuing on EU-Perjeta + trastuzumab
Efficacy Endpoint: Overall survival rate after the single switch from from EU-Perjeta to PERT-IJS+trastuzumab compared with those continuing on EU-Perjeta+trastuzumab1 yearOS rate after switching of treatment from EU-Perjeta to PERT-IJS + trastuzumab versus those continuing on EU-Perjeta + trastuzumab
Pharmacokinetic (PK) endpoint-The trough serum concentration1 YearThe trough serum concentration (Ctrough)
Safety Endpoint: Incidence of TEAEs and SAEs after the single switch from EU-Perjeta to PERT-IJS+trastuzumab versus those continuing on EU-Perjeta+trastuzumab throughout1 YearIncidence of TEAEs and SAEs after switching of treatment from EU-Perjeta to PERT-IJS + trastuzumab versus those continuing on EU-Perjeta + trastuzumab
Safety End Point :left ventricular ejection fraction incidences after the single switch from EU-Perjeta to PERT-IJS+trastuzumab versus those continuing on EU-Perjeta+trastuzumab1 yearIncidence of patients with a decline in left ventricular ejection fraction (LVEF) of ≥ 10% from baseline to \< 50%
Safety Endpoint-pregnancy testweek 18Number of subjects with Pregnancy outcome
Immunogenicity End Point: after the single switch from EU-Perjeta to PERT-IJS+trastuzumab versus those continuing on EU-Perjeta+trastuzumab1 YearImmunogenicity (ADA titer and nAb titer) after switching of treatment from EU-Perjeta to PERT-IJS plus trastuzumab versus those continuing on EU-Perjeta + trastuzumab

Countries

India

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 14, 2026