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Clinical Trial Summary

Breast cancer is the most common malignant tumor in women worldwide,and there exist a large part of patients need to receive neoadjuvant chemotherapy(NAC) before the curative surgery.Circulating tumor DNA(ctDNA) is the circulating free DNA in the blood that originates from cancers,and it can be detected by modern technologies in plasma.In this prospective study,investigators aim to observe the correlation between tumor response to neoadjuvant chemotherapy and ctDNA.

Clinical Trial Description

Women with node-positive breast cancer are at high risk for recurrence. Neoadjuvant chemotherapy is traditionally for locally advanced disease, converting an inoperable tumor to a resectable one.In the present study, investigators will focus on breast cancer patients whose primary tumors are large or have lymph node metastases and need to receive neoadjuvant chemotherapy from 2018 to 2019. Circulating tumor DNA(ctDNA) will be obtained from peripheral blood,and the blood samples will be taken before the neoadjuvant chemotherapy、during the chemotherapy、 before the surgery and post surgery visit (within 24 hours after surgery) .Investigators will collect tissue samples both from the breast lump biopsy and the curative surgery. Investigators aim to investigate whether circulating tumor DNA is a sensitive marker to monitor the efficacy of neoadjuvant chemotherapy in breast cancer. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03688035
Study type Observational [Patient Registry]
Source Shandong Cancer Hospital and Institute
Contact Zhiyong Yu, PhD
Phone 86-13355312277
Status Not yet recruiting
Start date September 20, 2018
Completion date September 20, 2019

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