A multicentre retrospective study comparing site-specific treatment with empiric treatment for unfavourable subset of cancer of unknown primary site.
Kazuo NishikawaShuichi HironakaTakashi InagakiAzusa KomoriSatoshi OtsuKenji MitsugiAkitaka MakiyamaKoichiro WatanabeShingo TamuraYuta OkumuraHitoshi KusabaTaito EsakiEishi BabaKuniaki ShiraoPublished in: Japanese journal of clinical oncology (2022)
Overall survival in site-specific and empiric treatment groups was similar in the unfavourable cancer of unknown primary site subset in this study. Further research is needed to prolong overall survival in patients in the unfavourable cancer of unknown primary site subset.