View clinical trials related to HER2+ Breast Cancer.
Filter by:The purpose of this study is to see if using Stereotactic Body Radiation Therapy/SBRT to treat a single metastatic site where cancer has worsened may be an effective treatment for people with oligometastatic breast cancer. Participants will stay on their usual drug therapy while they receive SBRT. This combination of SBRT to a single metastatic site and usual drug therapy may prevent participants' cancer from worsening in other metastatic sites or spreading.
This is an open, prospective and interventional clinical study. Patients with advanced Human Epidermal Growth Factor Receptor 2 (HER2) positive breast cancer resistant to trastuzumab will be enrolled in the study. Histological specimens obtained from different metastatic foci of patients, are used to conduct genome-wide sequencing together with Circulating tumor DNA (ctDNA) of blood samples. Meanwhile, investigator will construct PDO model based on biopsy tissue. Patients as well as their paired Patient-derived organoids (PDO) models are divided into six groups according to genomic signatures. Each group of patients will receive the best targeted treatment scheme from the current clinical perspective, while the matched PDO model will accept a variety of potential effective schemes intervention. The future treatment plan of patients will be timely adjusted based on the tumor inhibition rate of PDO models. This study is the first time to explore the best individualized application sequence of targeted therapy for refractory HER2 positive breast cancer by combining genome sequencing with drug sensitivity test of PDO model. The results are expected to improve the prognosis of patients with advanced HER2 positive breast cancer.