NGS analysis will be performed on cfDNA extracted from peripheral blood samples of target patients to determine the types and incidences of genetic abnormalities. Patient information and gene abnormality data will be integrated, and the types and incidences of gene abnormalities by cancer type will be analyzed.
This study is a genetic analysis of aberrations in circulating tumor DNA (ctDNA) in patients in Asian countries. This study protocol is divided into parts describing several subanalyses that differ in terms of cancer types, analytical methods, participating countries, and participating institutions.