Spots Global Cancer Trial Database for The Role of ctDNA and PBMC in Treatment of Biliary Tract Cancer

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Trial Identification

Brief Title: The Role of ctDNA and PBMC in Treatment of Biliary Tract Cancer

Official Title: The Role of ctDNA and PBMC as Biomarkers in Diagnostic, Efficacy Monitoring and Prognostic Evaluation of Biliary Tract Cancer

Study ID: NCT02809898

Conditions

Biliary Tract Neoplasms

Interventions

surgery or biopsy

Study Description

Brief Summary: Our study aims to evaluate the role of ct-DNA and PBMC as biomarkers in the treatment of biliary tract cancer.

Detailed Description: Biliary cancer ranked fifth in all gastrointestinal malignant cancer. Epidemiological surveys showed a significant increasing trend in recent years. How can make an early diagnosis of bile duct cancer as well as prognostic evaluation and efficacy monitoring, has become the hotspot. "liquid biopsy", which is meant to detect cancers by sequencing the DNA in a few drops of a person's blood. It may detect cancers early, even before symptoms arise, when there is just a few cells in the blood circulation. cf-DNA in cancer patients often bears similar genetic and epigenetic features to the related tumor DNA. There is evidence that some of the cf-DNA originates from tumoral tissue. This, and the fact that cf-DNA can easily be isolated from the circulation and other body fluids of patients, makes it a promising candidate as a non-invasive biomarker of cancer. And we call the cf-DNA of tumor as ct-DNA. Peripheral blood mononuclear cells (PBMC) is any peripheral blood cell having a round nucleus. These cells can be extracted from whole blood using ficoll, a hydrophilic polysaccharide. PBMC contains genetic material of tumor and may be applied as a biomarker. This study aims to evaluate the role of ct-DNA and PBMC as biomarkers in the treatment of biliary tract cancer.