# Korean Cancer Study Group

Source: https://onco.cc/companies/kcsg/  
OnCo record `kcsg` (Company). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

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.

## Fields

- Kind: Company
- Last checked: 2026-09-09
- Also known as: KCSG
- Tags: cooperative-group
- HQ: Seoul
- Type: cooperative-group
- Website: https://www.kcsg.org

## Notes

- Gastric and hepatobiliary cancer trials
- Thoracic oncology
- K-MASTER precision oncology programme
- Asian Clinical Trials Network

## Sources

- KCSG: https://www.kcsg.org

## Connected records

- cancers: [Colorectal cancer](https://onco.cc/cancers/colorectal/), [Gastric & gastro-oesophageal junction cancer](https://onco.cc/cancers/gastric/), [Hepatocellular carcinoma](https://onco.cc/cancers/hcc/), [HER2-positive breast cancer](https://onco.cc/cancers/breast-her2-positive/), [Non-small-cell lung cancer](https://onco.cc/cancers/nsclc/)
- technologies: [Comprehensive genomic profiling](https://onco.cc/technologies/cgp/), [Small-molecule kinase inhibitors](https://onco.cc/technologies/kinase-inhibitors/)
- institutions: [Asan Medical Center](https://onco.cc/institutions/asan-medical-center/), [Samsung Medical Center](https://onco.cc/institutions/samsung-medical-center/), [Seoul National University Hospital](https://onco.cc/institutions/snuh/), [Severance Hospital, Yonsei University](https://onco.cc/institutions/severance/)
- terms: [Basket, umbrella, and platform trials](https://onco.cc/terms/basket-umbrella-platform/)
- people: [Jin Seok Ahn](https://onco.cc/people/jin-seok-ahn/), [Myung-Ju Ahn](https://onco.cc/people/ahn-myung-ju/)

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JSON: https://onco.cc/api/v1/entities/kcsg.json