Dr. Marabelle is the Clinical Director of the Cancer Immunotherapy Program at Gustave Roussy Cancer Center in Villejuif, France, and he works as a Senior Medical Oncologist and an investigator in the Drug Development Department (DITEP). He leads a translational research laboratory (LRTI) within the INSERM U1015 with a focus on mechanisms of action of immune targeted therapies. He is also the director of the Clinical Investigation Center BIOTHERIES dedicated to intratumoral immunotherapies.

Dr. Marabelle´s clinical practice is dedicated to early phase clinical trials in cancer immunotherapy and his translational research is focused on mechanisms of action of immune checkpoint monoclonal antibodies.