Trial to Compare the Safety, Efficacy and Immunogenicity of TX05 With Herceptin® in HER2+ Early Breast Cancer
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ClinicalTrials.gov Identifier: NCT03556358 |
Recruitment Status :
Completed
First Posted : June 14, 2018
Results First Posted : January 14, 2022
Last Update Posted : January 14, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Breast Cancer Breast Neoplasms HER2-positive Breast Cancer Stage II Breast Cancer Stage IIIA Breast Cancer | Biological: TX05 (trastuzumab) Biological: Herceptin® Drug: Paclitaxel Drug: Epirubicin Drug: Cyclophosphamide | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 809 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Treatment |
Official Title: | A Randomized, Double-blind, Parallel Group, Phase III Trial to Compare the Efficacy, Safety, and Immunogenicity of TX05 With Herceptin® in Subjects With HER2 Positive Early Breast Cancer |
Actual Study Start Date : | June 28, 2018 |
Actual Primary Completion Date : | November 27, 2020 |
Actual Study Completion Date : | February 4, 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: TX05 (trastuzumab)
• Intravenous (IV) epirubicin, 75 mg/m^2 and cyclophosphamide 600 mg/m2 every 3 weeks for 4 cycles Followed by: • IV TX05 8 mg/kg loading dose then 6 mg/kg and paclitaxel 175 mg/m2 every 3 weeks for 4 cycles |
Biological: TX05 (trastuzumab)
8 mg/kg, 90 min IV infusion (Cycle 5), followed by 6 mg/kg, 60 min IV infusion (Cycles 6 - 8) Drug: Paclitaxel 175 mg/m^2, 60 min IV infusion, every 3 weeks (Cycles 5-8)
Other Name: Ribotax Drug: Epirubicin 75 mg/m^2, IV bolus infusion, every 3 weeks (Cycles 1-4) Drug: Cyclophosphamide 600 mg/m^2, 30 min IV infusion, every 3 weeks (Cycles 1-4) |
Active Comparator: Herceptin®
• Intravenous (IV) epirubicin, 75 mg/m^2 and cyclophosphamide 600 mg/m2 every 3 weeks for 4 cycles Followed by: • IV Herceptin 8 mg/kg loading dose then 6 mg/kg and paclitaxel 175 mg/m2 every 3 weeks for 4 cycles |
Biological: Herceptin®
8 mg/kg, 90 min IV infusion (Cycle 5), followed by 6 mg/kg, 60 min IV infusion (Cycles 6 - 8) Drug: Paclitaxel 175 mg/m^2, 60 min IV infusion, every 3 weeks (Cycles 5-8)
Other Name: Ribotax Drug: Epirubicin 75 mg/m^2, IV bolus infusion, every 3 weeks (Cycles 1-4) Drug: Cyclophosphamide 600 mg/m^2, 30 min IV infusion, every 3 weeks (Cycles 1-4) |
- Proportion of Subjects in Each Treatment Arm Who Achieve Pathologic Complete Response (pCR) [ Time Frame: 3-7 weeks following last dose of study treatment ]Pathologic complete response was determined by central review and defined as the absence of residual invasive cancer on hematoxylin and eosin evaluation of the complete resected breast specimen and all sampled lymph nodes following neoadjuvant systemic therapy (ypT0/Tis ypN0).
- Objective Response Rate (ORR) [ Time Frame: End of Treatment (Week 24) or Early Termination Visit ]Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.1) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=30% decrease in the sum of the longest diameter of target lesions; Objective Response (ORR) = CR + PR.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | Female |
Gender Based Eligibility: | Yes |
Accepts Healthy Volunteers: | No |
Key Inclusion Criteria:
- Histologically confirmed HER 2 overexpressing invasive primary operable Stage II/IIIa breast cancer (AJCC version 7 staging criteria).
- Available tumor tissue for central review of HER2 status.
- Planned surgical resection of breast tumor.
- Planned neoadjuvant chemotherapy.
- Documentation of HER2 gene amplification or overexpression.
- Ipsilateral, measurable tumor longest diameter > 2 cm.
- Known estrogen receptor (ER) and progesterone receptor (PR) hormone status (may be performed during screening).
- ECOG performance status of 0 or 1.
- Adequate bone marrow, hepatic and renal functions.
- Left ventricular ejection fraction (LVEF) ≥ 50% or within institutional normal limits, measured by echocardiography or MUGA scan.
- Effective contraception as defined by protocol.
Key Exclusion Criteria:
- Investigational therapy within 2 months of first dose of study drug.
- Bilateral breast cancer.
- Inflammatory breast cancer
- Metastases.
- Prior chemotherapy, biologic therapy, radiation or surgery for any active malignancy, including breast cancer.
- Cardiac insufficiency, myocardial infarction, coronary/peripheral artery bypass graft, congestive heart failure, cerebrovascular accident, unstable angina pectoris, uncontrolled arrhythmia or pulmonary embolus within the previous 12 months prior to 1st administration of study drug.
- Clinically significant active infection, poorly controlled diabetes mellitus and/or uncontrolled hypertension.
- Major surgery, significant traumatic injury, radiation therapy and/or grade 3 hemorrhage within 4 weeks of 1st administration of study drug.
- Pre-existing clinically significant Grade 2 peripheral neuropathy.
- Malignancy within the last 5 years (except squamous/basal cell carcinoma of the skin, cervical carcinoma in situ and superficial bladder cancer).
- Severe dyspnea at rest requiring oxygen therapy.
- Known positive HIV, acute or chronic active infection with Hepatitis B or Hepatitis C.
- Current pregnancy or breastfeeding.
- Pre-existing thyroid abnormality with thyroid function that cannot be maintained in normal range despite optimal therapy.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03556358

Study Director: | Bonnie Mills, PhD | Tanvex BioPharma USA, Inc. |
Documents provided by Tanvex BioPharma USA, Inc.:
Responsible Party: | Tanvex BioPharma USA, Inc. |
ClinicalTrials.gov Identifier: | NCT03556358 |
Other Study ID Numbers: |
TX05-03 |
First Posted: | June 14, 2018 Key Record Dates |
Results First Posted: | January 14, 2022 |
Last Update Posted: | January 14, 2022 |
Last Verified: | January 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
trastuzumab Herceptin |
Breast Neoplasms Neoplasms by Site Neoplasms Breast Diseases Skin Diseases Paclitaxel Cyclophosphamide Trastuzumab Epirubicin Antineoplastic Agents, Phytogenic Antineoplastic Agents Tubulin Modulators Antimitotic Agents Mitosis Modulators |
Molecular Mechanisms of Pharmacological Action Immunosuppressive Agents Immunologic Factors Physiological Effects of Drugs Antirheumatic Agents Antineoplastic Agents, Alkylating Alkylating Agents Myeloablative Agonists Antineoplastic Agents, Immunological Antibiotics, Antineoplastic Topoisomerase II Inhibitors Topoisomerase Inhibitors Enzyme Inhibitors |