{"entity":{"id":"kcsg","kind":"company","name":"Korean Cancer Study Group","aka":["KCSG"],"tldr":"South Korea's multicentre cooperative trials group, linking the Seoul mega-hospitals and regional centres in investigator-initiated trials in gastric, lung, liver and breast cancer.","summary":"Founded in 1998 by Korean medical oncologists, KCSG is the country's academic cooperative group and a founding member of the Asian Clinical Trials Network. It runs disease-specific committees (gastrointestinal, thoracic, breast, hepatobiliary, genitourinary, lymphoma, head and neck) and a data centre, and it is the route by which Korea's high-volume hospitals run multicentre investigator-initiated trials and correlative biomarker studies. Korean investigators enrol a large share of global gastric and EGFR-mutant lung cancer trials, and KCSG trials of second-line gastric chemotherapy and of precision oncology umbrella designs (K-MASTER) have been influential. Members include Seoul National University Hospital, Asan Medical Center, Samsung Medical Center and Severance.","asOf":"2026-09-09","links":[{"label":"KCSG","url":"https://www.kcsg.org"}],"tags":["cooperative-group"],"related":[],"cancers":["gastric","nsclc","hcc","breast-her2-positive","colorectal"],"sections":[],"technologies":["cgp","kinase-inhibitors"],"targets":[],"drugs":[],"companies":[],"institutions":["snuh","asan-medical-center","samsung-medical-center","severance"],"pathways":[],"terms":["basket-umbrella-platform"],"trials":[],"people":["ahn-myung-ju","jin-seok-ahn"],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":["Gastric and hepatobiliary cancer trials","Thoracic oncology","K-MASTER precision oncology programme","Asian Clinical Trials Network"],"provenance":{"editedBy":"OnCo cooperative groups migration (row 251: institution consortium records moved to cooperative-group companies)","editedOn":"2026-09-25"},"hq":"Seoul","country":"KR","companyType":"cooperative-group","website":"https://www.kcsg.org","founded":1998,"investors":[],"funding":[]},"route":"/companies/kcsg/","neighbours":{"cancer":[{"id":"colorectal","kind":"cancer","name":"Colorectal cancer","route":"/cancers/colorectal/"},{"id":"gastric","kind":"cancer","name":"Gastric & gastro-oesophageal junction cancer","route":"/cancers/gastric/"},{"id":"hcc","kind":"cancer","name":"Hepatocellular carcinoma","route":"/cancers/hcc/"},{"id":"breast-her2-positive","kind":"cancer","name":"HER2-positive breast cancer","route":"/cancers/breast-her2-positive/"},{"id":"nsclc","kind":"cancer","name":"Non-small-cell lung cancer","route":"/cancers/nsclc/"}],"technology":[{"id":"cgp","kind":"technology","name":"Comprehensive genomic profiling","route":"/technologies/cgp/"},{"id":"kinase-inhibitors","kind":"technology","name":"Small-molecule kinase inhibitors","route":"/technologies/kinase-inhibitors/"}],"institution":[{"id":"asan-medical-center","kind":"institution","name":"Asan Medical Center","route":"/institutions/asan-medical-center/"},{"id":"samsung-medical-center","kind":"institution","name":"Samsung Medical Center","route":"/institutions/samsung-medical-center/"},{"id":"snuh","kind":"institution","name":"Seoul National University Hospital","route":"/institutions/snuh/"},{"id":"severance","kind":"institution","name":"Severance Hospital, Yonsei University","route":"/institutions/severance/"}],"term":[{"id":"basket-umbrella-platform","kind":"term","name":"Basket, umbrella, and platform trials","route":"/terms/basket-umbrella-platform/"}],"person":[{"id":"jin-seok-ahn","kind":"person","name":"Jin Seok Ahn","route":"/people/jin-seok-ahn/"},{"id":"ahn-myung-ju","kind":"person","name":"Myung-Ju Ahn","route":"/people/ahn-myung-ju/"}]}}