Targeted Next Generation Sequencing for the Efficacy of Trastuzumab Neoadjuvant Chemotherapy in Breast Cancer
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|ClinicalTrials.gov Identifier: NCT03728829|
Recruitment Status : Recruiting
First Posted : November 2, 2018
Last Update Posted : July 9, 2021
|Condition or disease||Intervention/treatment|
|Observational Prospective||Drug: Trastuzumab+TP|
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.
|Study Type :||Observational|
|Estimated Enrollment :||100 participants|
|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|
|Estimated Study Start Date :||July 2021|
|Estimated Primary Completion Date :||October 30, 2022|
|Estimated Study Completion Date :||December 31, 2022|
Trastuzumab+TP neoadjuvant chemotherapy
100 cases of patients with stage II-III HER2+ breast cancer will be assigned participants to neoadjuvant treatment regimen, including Trastuzumab combined with Docetaxel and Carboplatin. 5-10 ml peripheral blood will be collected from each patient and formalin fixed paraffin embedded (FFPE) blocks/sections or fresh tumor tissues/biopsies will be obtained from the hospitals before and after neoadjuvant therapy. The genomic characteristics between patients achieved pCR and non-pCR will be analyzed. The clinically actionable mutations for future therapy instructions will be identified.
Trastuzumab (4 mg/kg loading dose, then 2 mg/kg I.V., every week, totally 17 weeks (6 cycles)) combined with TC neoadjuvant chemotherapy (Docetaxel 75 mg/m2 I.V., day 1, Carboplatin 400 mg/kg, I.V., day 2, every 3 weeks, totally 6 cycles).
Other Name: Trastuzumab+Docetaxel+Carboplatin
- genetic profile sequenced by a pan-cancer gene panel [ Time Frame: 1 year ]analyze the genetic profile of HER2+ breast cancer patients treated with trastuzumab combined neoadjuvant chemotherapy by targeted next generation sequencing on a pan-cancer gene panel
- pCR [ Time Frame: 1 year ]The pathological complete response (pCR) rate of patients treated with trastuzumab neoadjuvant chemotherapy.
- Incidence of Treatment-Emergent Adverse Events [Safety and Tolerability] [ Time Frame: 1 year ]The incidence of adverse events of patients treated with trastuzumab neoadjuvant chemotherapy, including Cardiac toxicity, leukopenia, etc.
Biospecimen Retention: Samples With DNA
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03728829
|Contact: Yunjiang Liu, MD, PhDemail@example.com|
|Fourth Hospital of Hebei Medical University, China||Recruiting|
|Shijiazhuang, Hebei, China, 050011|
|Contact: Yunjiang Liu, M.D., Ph.D. +86-311-86095588 firstname.lastname@example.org|
|Study Chair:||Baoen Shan, MD,PhD||Hebei Medical University Fourth Hospital|