The International Society of Geriatric Oncology, also called SIOG (Société Internationale d’Oncologie Gériatrique) in French, is a multidisciplinary membership-based society with members engaged in more than 80 countries around the world. Our network includes geriatricians, medical oncologists, surgical oncologists, radiation oncologists, anaesthesiologists, nurses and allied health professionals. Founded in 2000, SIOG was officially registered as a not-for-profit organisation under the Swiss law in October 2012. Ever since, SIOG has established a long-standing history of implementing programmatic activities in the field of Geriatric Oncology via 4 strategic directions: education, clinical practice, research and collaborations & partnerships.

Powered by global collaborations, the SIOG network is committed to strengthening the national capacity for Human Resources for Health (HRH) in various countries and in promoting and advocating for the health agenda of the Sustainable Development Goal (SDG3) i.e. ‘Ensure healthy lives and promote wellbeing for all at all ages’.

Mission & Vision

The goal of SIOG is to strengthen the capacity of health professionals in the field of geriatric oncology, in order to optimise treatment of older adults with cancer. SIOG operates via 4 strategic directions. SIOG’s 2021 policy review has provided a broad expert consensus on 12 priorities to advance the care of older adults with cancer on a global scale.