Neoplasms

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Breast Neoplasms

Breast Diseases

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Hormones

Before treatment, the patients in the study group underwent NGS detection of ctDNA and formulated endocrine treatment plan according to the test results. After 2 months of endocrine therapy, all patients underwent NGS detection of ctDNA, and the efficacy was evaluated according to RECIST v1.1 standard.

The NGS detection panel is designed by our team and covers genes that are clinically useful and have definite guiding significance for endocrine therapy

Next Generation Sequencing (NGS) detection

Fei Ma, Dr.

To determine the landscape of gene mutation before and after endocrine therapy, to search for molecular markers of endocrine therapy efficacy, and to explore the clinical value of using NGS detection of ctDNA to guide precise endocrine therapy in patients with advanced breast cancer. The primary endpoints were progression-free survival (PFS), and the secondary endpoints included overall survival time (OS), adverse events (AE), and severe adverse events (SAE).

Before treatment, the patients in the study group underwent NGS detection of ctDNA and formulated treatment plan according to the test results: 1) those with ESR1 mutation and who did not use fulvestrant before, preferred fulvestrant; 2) those with abnormal activation of PI3K/Akt/mTOR pathway signal, preferred mTOR inhibitor combined with endocrine therapy; 3) those with HER-2 sensitive point mutation, preferred anti-HER-2 therapy combined with endocrine therapy; 4) PDGFR mutation, preferential use of PDGFR inhibitors combined with endocrine therapy; 5) no significant gene mutation, making endocrine therapy plan according to the actual clinical situation. After 2 months of endocrine therapy, all patients underwent NGS detection of ctDNA, and the efficacy was evaluated according to RECIST v1.1 standard. If the efficacy evaluation is effective, continue the current treatment and re-evaluate the efficacy every two months; if the efficacy evaluation is ineffective (progress), then withdraw from this study. The vital signs, blood routine, liver and kidney functions and imaging examinations were examined at least every two months in the patients in the study group, and the curative effect was evaluated according to RECIST v1.1 standard.

Clinical Value of Next Generation Sequencing in Endocrine Therapy for Advanced Hormone Receptor Positive/HER-2 Negative Breast Cancer

From date of first use endocrine treatment until the date of first documented progression or date of death from any cause, whichever came first

Time from first use endocrine treatment to death

Adverse events (AEs) and laboratory tests graded according to the NCI CTCAE (version 4.0)

Study title	NCT ID	Conditions	Interventions	Eligibility	Organization	Link
Clinical Value of Next Generation Sequencing in Endocrine Therapy for Advanced Hormone Receptor Positive/HER-2 Negative Breast Cancer	NCT03786575	Breast Neoplasm... Therapeutics Mutation	Next Generation...	18 Years -	Peking Union Medical College
Clinical Value of Next Generation Sequencing in Endocrine Therapy for Advanced Hormone Receptor Positive/HER-2 Negative Breast Cancer	NCT03786575	Breast Neoplasm... Therapeutics Mutation	Next Generation...	18 Years -	Peking Union Medical College

Spots Global Cancer Trial Database for next generation sequencing (ngs) detection