Pertuzumab

This study will evaluate a structured sequential treatment strategy starting with T-DXd + pertuzumab upfront therapy, followed by an optimized maintenance therapy with dual HER2+blockade + CDK4/6i + ET and the opportunity to retreat with T-DXd once patients progress under maintenance aimed to maximizing disease control, optimizing tolerability, and preserving T-DXd as a future therapeutic option, while ensuring participant safety and regulatory compliance in participants with HER2+/HR+ advanced/metastatic breast cancer.

This phase III trial evaluates the effect of adding locoregional therapy (surgery and radiation) and metastasis-directed stereotactic body radiation therapy (SBRT) to standard systemic therapy following standard HER2-targeted systemic therapy, compared to standard systemic therapy alone, in treating patients with HER2-positive stage IV breast cancer that has spread from where it first started (primary site) to other places in the body (metastatic) or to a limited number of sites (oligometastatic). The usual approach for patients with (oligo)metastatic HER2-positive breast cancer is systemic drug treatment, which means medicines that travel through the whole body to treat both the breast and any areas where the cancer has spread. There are a number of approved HER2-targeted systemic therapy regimens available to patients. These typically include immunotherapy and/or chemotherapy. Immunotherapy drugs may induce changes in body's immune system and may interfere with the ability of tumor cells to grow and spread. Chemotherapy drugs work in different ways to stop the growth of tumor cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Unlike systemic therapy, locoregional therapies like surgery and radiation are focused treatments at the site of disease, delivered with the intent of sparing healthy tissues. Breast surgeries such as breast conserving therapy or total mastectomy are procedures in which the cancerous breast tissue (and healthy breast tissue in the case of total mastectomy) are surgically removed from the body. Radiation therapy uses high energy x-rays, particles, or radioactive seeds to kill cancer cells and shrink tumors. SBRT is a type of external radiation therapy that uses special equipment to position a patient and precisely deliver radiation to tumors in the body (except the brain). The total dose of radiation is divided into smaller doses given over several days. This type of radiation therapy helps spare normal tissue. Adding locoregional therapy, as well as metastasis-directed SBRT, to standard systemic therapy may help patients with (oligo)metastatic, HER2-positive stage IV breast cancer live longer overall or before their cancer progresses, and may help more patients achieve no evidence of disease, when compared to standard systemic therapy alone.

This is a randomized, open-label, superiority, multicenter clinical trial for patients with early or locally advanced (T≥2cm, N0-3, M0) HER2-positive breast cancer. It aims to compare the efficacy of neoadjuvant treatment with 2 cycles of Pyrotinib + Trastuzumab + Docetaxel followed by 2 cycles of Pertuzumab + Trastuzumab + Docetaxel versus 4 cycles of Pertuzumab + Trastuzumab + Docetaxel. Exploratory analyses of ctDNA clearance rate and MRI response will also be conducted.

This is an open-label phase 2 study to evaluate the pCR rate in patients diagnosed with HER2 positive breast cancer treated on an adaptive clinical trial design. Tumors will undergo testing using a novel molecular phosphoprotein-based biomarker assay, HER2 Activation Response Predictive Signature (HARPS) to identify HARPS-positive breast cancers. To assess 3-year invasive disease-free survival (iDFS) in patients with HARPS-positive and HARPS-negative HER2-positive breast cancer. To correlate changes in ctDNA with treatment outcomes in patients with HARPS-positive and HARPS-negative HER2-positive breast cancer. To understand the changes in quality of life (QOL) measure in patients with HARPS-positive HER2-positive breast cancer treated using an adaptive neoadjuvant trial design.

This is a single-center, phase 1b study evaluating the safety and feasibility of a neoadjuvant treatment with tucatinib, trastuzumab and pertuzumab in stage II-IIIA HER2-positive breast cancer.

Adult men and women with early-stage, IHC/FISH-defined HER2-positive breast cancer will have a MammaPrint®/BluePrint® assay performed on the diagnostic biopsy specimen, ordered by the treating Oncologist as standard care

This randomized, controlled, open-label, multicenter study will evaluate the safety and efficacy of KN026 in combination with HB1801 ± Carboplatin as neoadjuvant therapy in patients with early or locally advanced HER2-positive breast cancer.

This trial is a registered phase III, randomized, open and multicenter study to evaluate the efficacy and safety of BL-M07D1 with or without Pertuzumab in the neoadjuvant treatment of HER2-positive breast cancer. The study is divided into a single-arm study phase (Phase II) and a randomized controlled study phase (Phase III).

The purpose of this study is to see if zanidatamab is safe and effective, when combined with chemotherapy, in treating people who has Human Epidermal Growth Factor Receptor 2 (HER2)-positive, early-stage breast cancer

This is a randomized, controlled, open-label, multicenter, Phase Ⅲ clinical study designed to compare the efficacy and safety of KN026 combined with HB1801 and chemotherapy versus trastuzumab combined with pertuzumab and chemotherapy as adjuvant therapy in participants with HER2-positive breast cancer.

The investigators plan to carry out a phase II, open-label, single-arm clinical study of short-course trastuzumab, pertuzumab combined with taxanes in the adjuvant treatment of early HER2-positive breast cancer, to explore whether 4 courses of dual HER2 blockade combined with taxanes can lead to a similar prognosis with current standard treatment, which is one-year trastuzumab monotherapy combined with chemotherapy, while reducing the adverse reactions of treatment.

The purpose of this study to assess the safety and efficacy of elacestrant, a selective estrogen receptor degrader (SERD) and dual biologic therapy, trastuzumab and pertuzumab, in patients with triple-positive breast cancer with and without an ESR1 mutation.

The purpose of this study is to learn whether clinical response (the amount a tumor shrinks based on imaging or tumor measurements obtained by physical exam) predicts pathologic response (the amount of tumor remaining when surgery is performed) in participants with breast cancer who are receiving chemotherapy prior to surgery.

The goal of this clinical trial is to evaluate the efficacy and safety of SHR-A1811 plus pertuzumab in combination with or without albumin-paclitaxel neoadjuvant therapy for early or locally advanced HER2-positive breast cancer. The main questions it aims to answer are: * Does the pCR of SHR-A1811 plus pertuzumab with or without albumin-paclitaxel improve compared to the current standard of treatment? * Is the safety of SHR-A1811 plus pertuzumab with or without albumin-paclitaxel better compared to the current standard of treatment? Researchers will compare SHR-A1811+pertuzumab or SHR-A1811+pertuzumab+albumin-paclitaxel to TCbHP to see if SHR-A1811 plus pertuzumab with or without albumin-paclitaxel works to treat early or locally advanced HER2-positive breast cancer. Subjects will be randomly assigned 1:1:1 to： * cohort 1：SHR-A1811 combined with pertuzumab for 6 cycles; * cohort 2：SHR-A1811 combined with pertuzumab and albumin-paclitaxel for 6 cycles; * cohort 3：TCbHP (docetaxel, carboplatin, trastuzumab and pertuzumab) for 6 cycles. There may be higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the study at a hospital or clinic and may require frequent medical assessments, blood tests, questionnaires, and scans.

This prospective, response-guided phase II study investigates individualized neoadjuvant treatment strategies for patients with human epidermal growth factor receptor 2 (HER2)-positive early breast cancer. After receiving neoadjuvant dual-HER2-targeted therapy with chemotherapy, patients are evaluated for their treatment response. Those achieving an adequate response continue the therapy, whereas patients with a suboptimal response transition to an intensified investigational regimen incorporating novel targeted agents. This adaptive approach aims to optimize pathologic response, minimize unnecessary toxicity, and explore more effective treatment options for individuals with insufficient benefit from conventional neoadjuvant therapy.

The purpose of the study is to find out if an investigational drug called Dendritic Cell (DC1) vaccine added to standard neoadjuvant (given before main treatment) therapy can help people with HER2 (human epidermal growth factor receptor 2) positive breast cancer.

compare the efficacy and safety of TCbHP and EC-THP regimen in HER2-positive breast cancer patients

The goal of this clinical trial is to compare trastuzumab deruxtecan (T-DXd) to standard preoperative treatment in patients with non-metastatic HER2-positive breast cancer. The main questions it aims to answer are: * is T-DXd more effective than standard preoperative treatment? * are there markers in the tumor or blood of patients with HER2-positive breast cancer that can help us predict response to treatment? Participants will be divided into two groups, where one group will be treated with three courses of T-DXd and the other group will be treated with three courses standard of care treatment. Thereafter, further treatment will be decided by the tumor's molecular subtype.

The purpose of this study is to test the safety and effectiveness of a sequence of drugs (a Taxane plus Trastuzumab plus Pertuzumab followed by Trastuzumab Deruxtecan, followed by Tucatinib plus Ado-Trastuzumab Emtansine (T-DM1), followed by Trastuzumab plus Pertuzumab plus Tucatinib) in HER2+ Breast Cancer. The study will help investigators understand whether first intensifying therapy for a specific period and then stopping treatment is safe and effective for participants. The names of the study drugs involved in this study are: * Paclitaxel (a type of anti-microtubule agent) * Docetaxel (a type of anti-microtubule agent) * Nab-Paclitaxel (a type of anti-microtubule agent) * Trastuzumab (a type of IgG1 kappa monoclonal antibody) * Pertuzumab (a type of monoclonal antibody) * Trastuzumab Deruxtecan (a type of HER2-directed antibody drug conjugate) * Tucatinib (Tyrosine Kinase HER2 Inhibitor) * Ado-trastuzumab emtansine or T-DM1 (a type of HER2-targeted antibody-drug conjugate)

The goal of this multicentre, randomized, double-blind controlled, phase III clinical trial is to compare the efficacy and safety of disitamab vedotin in combination with pyrotinib versus the standard first-line treatment of paclitaxel in combination with trastuzumab and pertuzumab (THP) for newly diagnosed recurrent/metastatic Human epidermal growth factor receptor 2 (HER2) positive advanced breast cancer, and to explore the impact of biomarkers on clinical efficacy and safety. The main questions it aims to answer are: * Analyse the efficacy and safety of disitamab vedotin in combination with pyrotinib versus the standard first-line treatment of THP. * Explore the impact of biomarkers on clinical efficacy and safety of the combination of disitamab vedotin in combination with pyrotinib treatment. Participants in the experimental group will receive disitamab vedotin in combination with pyrotinib for 6-8 cycles (each cycle lasting 28 days), followed by maintenance treatment with trastuzumab in combination with pyrotinib. Participants in the control group will receive paclitaxel in combination with trastuzumab and pertuzumab for 6-8 cycles (each cycle lasting 21 days), followed by maintenance treatment with trastuzumab and pertuzumab. Researchers will compare disitamab vedotin in combination with pyrotinib versus the standard first-line treatment of paclitaxel in combination with trastuzumab and pertuzumab to see if disitamab vedotin in combination with pyrotinib could be a new option for first-line treatment of HER2-positive metastatic breast cancer.

This is a randomized, multicenter, open-label, phase 3 study evaluating the efficacy, safety, and tolerability of IBI354 combined with or without pertuzumab vs. THP as first-line treatment for HER2-positive unresectable, locally advanced or metastatic breast cancer.

This trial is a registrational Phase III, randomized, open-label, multicenter study to evaluate the efficacy and safety of BL-M07D1 combined with Pertuzumab versus docetaxel plus Trastuzumab and Pertuzumab in patients with first-line HER2-positive recurrent or metastatic breast cancer.

This is an open-label, single arm, non-randomized, multicenter, phase 2 study assessing the efficacy and safety of T-DXd as first-line treatment in HER2-positive advanced/metastatic BC patients (N=300). The study integrates digital health tools for proactive toxicity management and potentially facilitate early detection of ILD/pneumonitis.

This is a randomized, controlled, open-label, multicenter, phase Ш clinical study designed to compare the efficacy and safety of KN026 in combination with HB1801 to trastuzumab in combination with pertuzumab and docetaxel in the first-line treatment of subjects with HER2-positive recurrent or metastatic breast cancer. The statistical assumption for this study is superiority. The primary study endpoint was PFS as assessed by Blinded Independ Review Committee (BIRC).

Efficacy and Safety of Dalpiciclib Combined with Anti-HER2 Targeted Therapy and Endocrine Therapy as First-line Maintenance Treatment for Patients with Recurrent or Metastatic Hormone-Receptor-Positive, HER2-positive Breast Cancer.