As an expert in the treatment of malignant lymphoma, Prof Ghielmini was for several years member of the editorial board of Annals of Oncology and of the Journal of Clinical Oncology. Prof. Ghielmini is member of the Lymphoma Section of the Swiss Group for Clinical research against Cancer (SAKK), which he chaired from 2001 to 2006 and of which he is still a member. He is Chair of the ESMO OncologyPRO Working Group and member of the ESMO Educational Committee.

Prof. Ghielmini has been Chair of several national and international studies in the field of lymphomas. He has authored many publications mainly in the field of haemato-toxicology, autologous stem cell transplantation and treatment of lymphoma.