|Year||Organization and Reseach Grant||Study Group|
|1978||Initial research was started, based on the grant “A Study on the Multidisciplinary Treatment of Cancer”, funded by a Grant-in-Aid for Cancer Research from the Ministry of Health and Welfare. The Principal Investigator was Keiichi Suemasu, M.D.||The Lymphoma Study Group (LSG)
The Japan Esophageal Oncology Group (JEOG)
|1982||The Lung Cancer Study Group (LCSG)|
|1984||The Gastric Cancer Surgical Study Group (GCSSG) (currently the Stomach Cancer Study Group)|
|1985||The Gastrointestinal Oncology Study Group (GIOSG)
The Breast Cancer Study Group (BCSG)
|1986||Constitution and Bylaws established.The Clinical Trials Review Committee (currently the Protocol Review Committee) and Data and Safety Monitoring Committee were instituted.||The Lung Cancer Surgical Study Group (LCSSG)|
|1987||The Steering Committee Meeting (currently the Executive Committee Meeting) was established.|
|1988||A new Grant-in-Aid was received from the Ministry of Health and Welfare , for a project titled “A Study on the Multidisciplinary Treatment of Solid Cancer”. The Principal Investigator was Masanori Shimoyama, M.D.|
|1990||The organization was named “JCOG (Japan Clinical Oncology Group)”.
Dr. Masanori Shimoyama became the first JCOG Chair.
|1991||The “JCOG Statistical Center” (now called the JCOG Data Center) was established, and began central patient registration and randomization using the minimization method.|
|1995||The Gynecologic Cancer Study Group (GCSG)|
|1999||“A Study on the Multidisciplinary Treatment of Solid Cancer” was divided into four groups:
|2001||Dr. Nagahiro Saijo became the second JCOG Chair.
JCOG took part in the national project “Medical Frontier Strategy Research” (superseded since 2002 by “Clinical Research for Evidence Based Medicine”) with a Health Sciences Research Grant.
|The Colorectal Cancer Study Group (CCSG)
The Urologic Oncology Group (UOSG)
|2002||The Bone and Soft Tissue Tumor Study Group (BSTTSG)|
|2003||The Radiation Therapy Study Group (RTSG)
The Brain Tumor Study Group (BTSG)
|2004||A new competitive grant system from the Ministry of Health, Labour and Welfare was initiated, called "Health and Labour Sciences Research Grant for Clinical Cancer Research".|
|2005||JCOG study activity incorporated a new Grant-in-Aid for Cancer Research, titled "Multi-institutional Cooperative Studies for the Establishment of Standard Therapy of Rare Malignant Tumors (17S-4)".|
|2006||The JCOG central office was reorganized into the JCOG Data Center and JCOG Operations Office.
The NPO CORE (Non-Profit Organization Clinical Oncology Research and Education) was established, collaboratively managing the JCOG Data Center / Operations Office with the National Cancer Center.
|2008||A new Grant-in-Aid for Cancer Research, titled "Multi-institutional Cooperative Studies for the Establishment of Standard Therapy of Radiation Therapy (20S-5)" was added to the JCOG study activity.
An international collaborative study with South Korea was begun.
|The Hepatobiliary and Pancreatic Oncology Group (HBPOG)|
|2009||Dr. Tomohide Tamura became the third JCOG Chair.|
|2011||The Grant-in-Aid for Cancer Research was reorganized into the "National Cancer Center Research and Development Fund". JCOG activity was funded by 7 research grants: 23-A-16, 23-A-17, 23-A-18, 23-A-19, 23-A-20, 23-A-21, 23-A-22.||The Gastrointestinal Endoscopy Study Group (GIESG)
The Head and Neck Cancer Study Group (HNCSG)
The Gastric Cancer Surgical Study Group (GCSSG) incorporated a part of the Gastrointestinal Oncology Study Group (GIOSG) and was renamed the Stomach Cancer Study Group (SCSG). The other section of GIOSG was reorganized into GIESG and HNCSG.
|2012||The Dermatologic Oncology Group (DOG)|
The detailed structure and history of JCOG can be found in the following article:
Fukuda H. Development of Cancer Cooperative Groups in Japan. Jpn J Clin Oncol 2010;40(9)881–890.