Prognosis and Targeted Therapy Related Molecular Screening Program for Patients of Breast Cancer in China
- Conditions
- Breast Cancer
- Interventions
- Other: detect gene mutations of ctDNA and ctRNA
- Registration Number
- NCT03792529
- Lead Sponsor
- Peking University Cancer Hospital & Institute
- Brief Summary
The anticipated objectives of this study are: 1) to understand the pathogenesis and molecular typing of breast cancer patients in China (mainly HER2 overexpression, triple negative and hormone receptor-positive patients) by detecting DNA and RNA in tumor tissue (fresh tissue or paraffin section), and to compare the similarities and differences between the western population and Chinese population; 2) plasma samples of patients with HER2 overexpression , hormone receptor-positive and triple negative (ER, PR, HER2 expression negative) were sequenced for ctDNA and ctRNA, to find out whether there are genes or gene sets related to therapeutic effect; 3) to study the specific changes of liquid molecular detection results according to the previous research results, and establish mathematical models to predict and monitor the effects of targeted therapy and endocrine therapy; 4) to compare liquid biopsy and imaging and clinical features in monitoring clinical therapeutic effect, and to elaborate the advantages and disadvantages of liquid biopsy and conventional imaging; 5) to provide molecular detection basis for follow-up clinical research and screening for targets of new drugs.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- UNKNOWN
- Sex
- Female
- Target Recruitment
- 300
- patients with first treated or recurrent metastatic breast cancer, according to RECIST version 1.1 standard, confirmed by CT or MRI, have at least one measurable lesion.
- HER2 positive or triple negative patients; (IHC++, fish amplification)
- Patients with anti-HER2 treatment as first-line or not, and patients with HER2 positive can be treated with adjuvant therapy containing trastuzumab.
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description breast cancer with HER2 overexpression detect gene mutations of ctDNA and ctRNA - hormone receptor-positive breast cancer detect gene mutations of ctDNA and ctRNA - triple negative breast cancer detect gene mutations of ctDNA and ctRNA -
- Primary Outcome Measures
Name Time Method Change from baseline targeted mutation analysis of ctDNA From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months ctDNA sequenced with Illumina Sequencer and analyzing SNV and Indel in ctDNA by software.
ctDNA copy number loss related with progress free survival(PFS) From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months ctDNA sequenced with Illumina Sequencer and analyzing SNV and Indel in ctDNA by software.
ctDNA copy number loss related with Overall survival(OS) From date of enrollment until the date of first documented progression or date of death from any cause, whichever came first, assessed up to 100 months ctDNA sequenced with Illumina Sequencer and analyzing SNV and Indel in ctDNA by software.
- Secondary Outcome Measures
Name Time Method
Trial Locations
- Locations (1)
Beijing Cancer Hospital
🇨🇳Beijing, Beijing, China