Tania Fleitas Kanonnikoff, MD, PhD, is a medical oncologist specialised in gastro-oesophageal cancer, and a researcher at the University Hospital of Valencia, INCLIVA, Spain. She has a broad background in digestive tumours, with specific training and expertise in gastro-oesophageal tumours.

Dr Fleitas Kanonnikoff trained at the Hospital Clínico y Universitario La Fe de Valencia (2008). In 2011, she completed her PhD programme in medicine at the Universidad Autónoma de Barcelona with honours; since then, she has worked as a medical oncologist and researcher at the Hospital Clínico Universitario de Valencia, INCLIVA Biomedical Research Institute. She is also a member of the Ethics Committee of the Hospital Clínico Universitario de Valencia and an expert project evaluator for the European Union Commission.

Her clinical work focuses on patient care and includes collaboration both as principal investigator (PI) and sub-investigator in clinical trials with a personalised medicine approach. Moreover, her research work focuses on the study of the tumour immune microenvironment of gastric cancers as PI and emergent researcher supported by the Carlos III Institute of Health, Spain. She stands out in her research experience following her 1-year fellowship (2016) at the Adam Bass Laboratory, Dana-Farber Cancer Institute, Boston. MA, USA where she undertook a project on gastric cancer immune characterisation.

In addition, she is the scientific coordinator of the European LEGACy Project, developed by an international consortium, investigating the multi-omic characterisation of gastric cancer as well as strategies in the three levels of prevention, which includes dissemination and engagement strategies for researchers, patients and the general public in Europe and Latin America. She has also led other international projects directed at implementing precision medicine and electronical clinical reports at public oncology hospitals in Paraguay (2015-2018).

Dr Fleitas Kanonnikoff mentors PhD students and oncology fellows, mainly on aspects related to her line of research. She has published articles as first author, collaborator and senior author in first quartile journals and has presented her work at prestigious national and international conferences. She also volunteers as a reviewer for first quartile journals.

She has been a member of the ESMO Faculty since January 2021, and a member of the ESMO Educational Publications Working Group since January 2022.