IBCSG’s dynamic, interactive network consists of other cooperative groups as well as individual centers. We conduct clinical trials with up to 500 participating sites from 6 continents, involving both major university-affiliated research sites and smaller community health sector institutions. Our group motto, “one for all and all for one,” reflects the loyalty that guides our worldwide collaboration between the IBCSG and its participating centers. This spirit has grown on the basis of a friendship amongst a group of dedicated researchers with the singular goal of serving women with breast cancer.

Recognizing that global partnership is essential to advancing breast cancer research, a consortium of international cooperative groups formed the Breast International Group (http://www.bigagainstbreastcancer.org) in 1996. As one of 6 founding members, IBCSG played a key role in the formation of BIG and continues to actively coordinate and participate in BIG-supported clinical trials. IBCSG has also forged partnerships with the US NCI and Canadian Cooperative Groups to enroll North American patients in IBCSG-coordinated trials and contribute patients from IBCSG centers to North American-coordinated studies.


IBCSG World map legend colour 1  Participating countries

IBCSG World map legend colour 2  IBCSG member countries


International Breast
Cancer Study Group

Effingerstrasse 40
3008 Bern, Switzerland

Phone: +41 31 511 94 00
E-mail: ibcsgcc@ibcsg.org

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