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About us

Founded in 2000, the International Society of Geriatric Oncology also known as SIOG (French acronym for Societé Internationale d’Oncologie Gériatrique) has been working to foster the development of health professionals in the field of geriatric oncology, for the optimisation of treatment of older adults with cancer. SIOG was registered as a non-profit organisation under the Swiss Law in 2012.

SIOG is a multidisciplinary team of oncology and geriatrics physicians, as well as allied health professionals and expert trainers with a unique collaborative approach to address the rising public health challenges related to ageing and cancer around the world. As of 2018, we count over 1700 members in more than 80 countries worldwide.

We are powered by global collaborations to strengthen the national capacity for Human Resources for Health (HRH) and to promote and advocate for SDG3 ‘Ensure healthy lives and promote wellbeing for all at all ages’.

Mission & Vision

The goal of SIOG is to foster the development of health professionals in the field of geriatric oncology, in order to optimise treatment of older adults with cancer. 
SIOG promotes efforts in 3 strategic directions:

1. Education 

  • Disseminate knowledge in order to maintain a high common standard of healthcare in older cancer patients
  • Integrate geriatric oncology in the curricula for medical and nursing education to ensure a high standard of qualification for healthcare professionals 
  • Address the shortage of specialist oncologists/geriatricians & allied health staff in geriatric oncology 
  • Increase public awareness of the worldwide cancer in the elderly epidemic

2. Clinical practice 

  • Integrate geriatric evaluation (including comorbidities) into oncology decision-making and guidelines 
  • Improve the quality of prevention, diagnosis, treatment, and follow-up of older patients with malignancies 
  • Address issues of access to care, including the needs of the caregiver 
  • Develop interdisciplinary geriatric oncology clinics

3. Research 

  • Develop, test and disseminate easy screening tools
  • Create a clear and operational definition of vulnerability/frailty applicable to oncology 
  • Increase the relevance of clinical trials for older patients 
  • Improve research in the field of geriatric oncology 
  • Promote multidisciplinary, basic/translational research on the interface of ageing and cancer

The founding members were: Paul Calabresi, Matti Aapro, Gilbert Zulian, Lazzaro Repetto, Martine Extermann, John Bennett, Riccardo Audisio, Lodovico Balducci and Silvio Monfardini.