Report on the fifth Edition of the Transatlantic Exchanges in Oncology

The 5th Transatlantic Exchanges in Oncology (TrEx) was held on March 27, 2026, at the Dana-Farber Cancer Institute (DFCI) in Boston, Massachusetts, in a hybrid format uniting an in-person audience with over 600 virtual participants. The annual symposium, launched in 2021 during the COVID-19 pandemic under the name ‘Dana-Farber Gustave Roussy Days in Oncology’, has matured into one of the leading transatlantic forums dedicated to cancer drug research, fostering structured scientific exchange between two premier academic cancer centers—DFCI in Boston and Institut Gustave Roussy (GR) in Villejuif, France. The 2026 edition marked several institutional milestones. For the first time, the symposium was hosted directly on the DFCI campus, in the Jimmy Fund Auditorium—a historically significant venue undergoing redevelopment the following
week. This edition also integrated, for the first time, presentations from the second cohort of the DFCI–GR Research Fellowship Program, fellows whose research was funded in part by L’Institut Servier. Additionally, the proceedings from the 4th edition—dedicated to radioligand therapies—received formal acceptance for peer-reviewed publication in the weeks preceding the event. The scientific theme for this edition was Innovation in Cancer Drug Research, spanning five sessions: drug repurposing and repositioning; cell therapies and the tumor microbiome; epigenetics in cancer; cellular reprogramming and engineered therapies; and translational research presented by the fellows. The program was co-chaired by Prof. Toni Choueiri (Director, Lank Center for Genitourinary Oncology, Harvard Medical School / DFCI) and Prof. Laurence Albiges (Chair,
Medical Oncology Department, Institut Gustave Roussy). L’Institut Servier—independent from the Servier pharmaceutical group—was acknowledged by multiple speakers as the foundational institutional partner enabling both the fellowship program and the symposium itself. Patrick Therasse, Managing Director of L’Institut Servier, addressed attendees directly, underscoring the organization’s commitment to translational science and to creating structured pathways for the next generation of physician-scientists. Gérard Friedlander (Institut Servier) and Prof. Fabrice Barlesi (CEO, Institut Gustave Roussy) were also in attendance.

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