The International Society of Geriatric Oncology, or Société Internationale d’Oncologie Gériatrique in French, hence the acronym SIOG, was founded in 2000. The major risk factor for cancer is age, and with the aging of the world population, a major epidemiologic challenge is before us.
The goal of SIOG is to foster the development of health professionals in the field of geriatric oncology, in order to optimize treatment of older adults with cancer. It promotes efforts in training, research, policy and care to support this mission.
SIOG is a multidisciplinary society, including physicians in the fields of oncology and geriatrics, and allied health professionals. Its annual conference is the leading conference for experts in the field to interact and share their results. It has members in more than 80 countries around the world.
Although each SIOG Annual Conference offers a valuable opportunity to learn from leading experts in geriatric oncology, connect with colleagues from around the world, and stay aligned with the latest scientific evidence, our ambition for the 2026 edition is to take a decisive step forward.
The SIOG 2026 Annual Conference will take place in Valencia, Spain, from Thursday, 5 November to Saturday, 7 November 2026. In line with this year’s theme—“A Global Call to Action: From Vision to Impact in Geriatric Oncology”—we hope the meeting will serve as both a reminder and a catalyst. A reminder that the SIOG community has long been, and continues to be, at the forefront of shaping how cancer care for older adults is delivered; and a catalyst to bring together the global workforce to address persistent barriers and drive meaningful, sustained progress in the field.
