Declaration of interest
M Lambertini acknowledges the support from the European Society for Medical Oncology (ESMO) for a Translational Research Fellowship at Institut Jules Bordet. L Del Mastro received honoraria from Takeda and personal fees from Ipsen and Takeda outside the submitted work. The authors have no other relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript apart from those disclosed.