• Circulating tumor cells in metastatic breast cancer patients treated with immune checkpoint inhibitors – a biomarker analysis of the ALICE and ICON trials 

      Andresen, Nikolai Kragøe; Røssevold, Andreas Hagen; Borgen, Elin; Schirmer, Cecilie; Gilje, Bjørnar; Garred, Øystein; Lømo, Jon; Stensland, Marius; Nordgård, Oddmund; Falk, Ragnhild Sørum; Ruud, Randi Margit; Russnes, Hege Elisabeth Giercksky; Kyte, Jon A; Naume, Bjørn (Peer reviewed; Journal article, 2024)
      Immune checkpoint inhibitors (ICIs) have been introduced in breast cancer (BC) treatment and better biomarkers are needed to predict benefit. Circulating tumor cells (CTCs) are prognostic in BC, but knowledge is limited ...
    • Impact of Prosigna test on adjuvant treatment decision in lymph node-negative early breast cancer—a prospective national multicentre study (EMIT-1) 

      Ohnstad, Hege Oma; Blix, Egil Støre; Akslen, Lars Andreas; Gilje, Bjørnar; Raj, Sunil Xavier; Skjerven, Helle; Borgen, Elin; Janssen, Emiel; Mortensen, Elin Synnøve; Brekke, Marianne B.; Falk, Ragnhild Sørum; Schlichting, Ellen; Boge, Beate; Songe-Møller, Silje; Olsson, Pernilla Marie A.; Heie, Anette; Mannsåker, Bård; Vestlid, Magdalena Aas; Kursetgjerde, Torgunn; Gravdehaug, Berit; Suhrke, Pål; Sánchez, E.; Bublevic, J.; Røe, Oluf Dimitri; Geitvik, Gry; Halset, Eline Holli; Rypdal, Maria Christine; Langerød, Anita; Lømo, Jon; Garred, Øystein; Porojnicu, Alina Carmen; Engebraaten, O.; Geisler, Jürgen; Lyngra, Marianne; Hansen, M. H.; Søiland, Håvard; Nakken, T.; Asphaug, Lars; Kristensen, Vessela N.; Sørlie, Therese; Sørlie, T.; Nygård, Jan Franz; Kiserud, Cecilie E.; Reinertsen, Kristin Valborg; Russnes, Hege Elisabeth Giercksky; Naume, Bjørn (Peer reviewed; Journal article, 2024)
      Background EMIT-1 is a national, observational, single-arm trial designed to assess the value of the Prosigna, Prediction Analysis of Microarray using the 50 gene classifier (PAM50)/Risk of Recurrence (ROR), test as a ...
    • Low Z-4OHtam concentrations are associated with adverse clinical outcome among early stage premenopausal breast cancer patients treated with adjuvant tamoxifen 

      Helland, Thomas; Naume, Bjørn; Hustad, Steinar; Bifulco, Ersilia; Kvaløy, Jan Terje; Sætersdal, Anna Barbro; Synnestvedt, Marit; Lende, Tone Hoel; Gilje, Bjørnar; Mjaaland, Ingvil; Weyde, Kjetil; Blix, Egil Støre; Wiedswang, Gro; Borgen, Elin; Hertz, Daniel Louis; Janssen, Emiel; Mellgren, Gunnar; Søiland, Håvard (Peer reviewed; Journal article, 2020)
      Low steady‐state levels of active tamoxifen metabolites have been associated with inferior treatment outcomes. In this retrospective analysis of 406 estrogen receptor‐positive breast cancer (BC) patients receiving adjuvant ...
    • Serum concentrations of active tamoxifen metabolites predict long-term survival in adjuvantly treated breast cancer patients 

      Helland, Thomas; Henne, Nina; Bifulco, Ersilia; Naume, Bjørn; Borgen, Elin; Kristensen, Vessela N.; Kvaløy, Jan Terje; Lash, Timothy L; Grenaker, Grethe Irene; van Schaik, RHN; Janssen, Emiel; Hustad, Steinar; Lien, Ernst Asbjørn; Mellgren, Gunnar; Søiland, Håvard (Journal article; Peer reviewed, 2017)
      Background Controversies exist as to whether the genetic polymorphisms of the enzymes responsible for the metabolism of tamoxifen can predict breast cancer outcome in patients using adjuvant tamoxifen. Direct measurement ...