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Brief Title: Targeted Next Generation Sequencing for the Efficacy of Trastuzumab Neoadjuvant Chemotherapy in Breast Cancer
Official Title: An Observational Phase II Trial of Targeted Next Generation Sequencing Analysis for the Efficacy of Trastuzumab Neoadjuvant Chemotherapy in Patients With HER2 Positive Breast Cancer
Study ID: NCT03728829
Brief Summary: To explore the genetic background of patients with HER2 positive breast cancer that benefit from trastuzumab combined with neoadjuvant chemotherapy, identify clinically actionable mutations that associated with trastuzumab resistance or drug efficacy, we designed this Observational phase II trial. The primary endpoint is genetic profile of HER2+ breast cancer patients treated with trastuzumab combined neoadjuvant chemotherapy. Secondary endpoints included pathological complete response (pCR) rate and safety.
Detailed Description: Currently, patients with stage II-III breast cancer still accounts for a large population in China, and neoadjuvant therapy is considered the standard treatment for them. The pathological complete response (pCR) rate takes for an indicator for regimens efficacy, and the achievement of pCR after neoadjuvant chemotherapy is associated with favorable outcomes including disease-free survival and overall survival. HER2+ breast cancer represents an invasive and poor prognosis subtype, and the efficacy of neoadjuvant therapy for these patients has been greatly augmented by the addition of trastuzumab. However, more than 50% of HER2+ breast cancer patients treated with trastuzumab combined neoadjuvant chemotherapy cannot achieve pCR, even experience primary drug resistance and rapid disease progression. Therefore, to explore the genomic features of the population that benefited from trastuzumab combined with chemotherapy is of great significance for personalized treatment of HER2+ breast cancer, aiming to avoid overtreatment and identify clinically actionable mutations for future therapy instructions.
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: FEMALE
Healthy Volunteers: No
Fourth Hospital of Hebei Medical University, China, Shijiazhuang, Hebei, China
Name: Baoen Shan, MD,PhD
Affiliation: Hebei Medical University Fourth Hospital
Role: STUDY_CHAIR