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About the Journal

Japanese Journal of Clinical Oncology is a multidisciplinary journal for clinical oncologists which publishes high quality articles on medical oncology, clinical trials, radiology, surgery, basic research, epidemiology, and palliative care. It contributes to international scientific knowledge but with particular emphasis on the Asian region.

Since 1971

JJCO publishes various articles types including:
・Original Articles
・Case Reports
・Clinical Trial Notes
・Cancer Genetics Reports
・Epidemiology Notes
・Technical Notes
・Short Communications
・Letters to the Editors
・Solicited Reviews

Freely accessible after 6 months of publication

The journal also welcomes interim articles on the design and plan of phase studies before actual results are obtained. While clinical trials usually require a long time to accomplish a conclusive outcome, the journal believes reports of interim outcomes will be highly appreciated by its audience. JJCO was established in 1971 as the first journal from Japan to publish clinical research on cancer in English. JJCO was initially financially supported by the Foundation for Promotion of Cancer Research to assist dissemination of Japanese research. The National Cancer Centre (NCC) played a central role in managing the journal. The successive Editors-in-Chief have all been presidents of the NCC. Oxford University Press (OUP) became the journal’s publisher since 1997. Since 2007, due to JJCO ’s success in establishing itself as an international journal, it became independent of sponsorship in 2007.

Sister-journal relationship with JNCI

JJCO is available online from Volume 1 Issue 1 up to the most recent issue. Articles become freely accessible 6 months after publication (Pre-1996 volumes are archival volumes and will require separate subscription). A print version of the journal is also available. For details of subscription prices, please visit .


Year Impact Factor Si: Oncology
2015 1.889 160 out of 213
2014 2.016 150 out of 211
2013 1.747 152 out of 202
2012 1.898 135 out of 196
2011 1.783 133 out of 194
2010 1.856 128 out of 184
2009 1.498 121 out of 165
2008 1.405 118 out of 141
2007 1.269 115 out of 132
2006 1.376 108 out of 127

This information is taken from the Journal Citation Reports, published annually as part of the Science Citation Index by ISI.


Japanese Journal of Clinical Oncology is covered by the following indexing service:

Abstracts in Anthropology
Abstracts on Hygiene and Communicable Diseases
Agricultural Engineering Abstracts
Biological Abstracts
BIOSIS Previews
CAB Abstracts
Current Contents® /Clinical Medicine
Derwent Drug File
Global Health
INIS Atomindex
Journal Citation Reports /Science Edition
Nutrition Abstracts and Reviews
PROQUEST DATABASE : ProQuest 5000 International
PROQUEST DATABASE : ProQuest Health & Medical Complete
PROQUEST DATABASE : ProQuest Medical Library
PROQUEST DATABASE : ProQuest Pharma Collection
Review of Medical and Veterinary Mycology
Science Citation Index Expanded (SciSearch®)
The Standard Periodical Directory
Tropical Diseases Bulletin

Since 1977, JJCO is a sister-journal to the Journal of the National Cancer Institute.

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