About this trial
RADIOSPHER2 study is a monocentric, retrospective, observational study aiming at identifying a radiomics signature able to predict HER2 expression (0 vs low vs overexpression) and trastuzumab deruxtecan efficacy in metastatic breast cancer patients. The study also encompasses translational analyses and inter-modal correlations in order to provide novel insights about HER2 spatial and temporal heterogeneity, at the macroscopic and microscopic levels.
Eligibility criteria
Qualifiers
Patients with metastatic breast cancer underwent a liver, lung, pleural or bone biopsy in the metastatic setting, performed from 01Jan2005 to 01Jan2024.
Disqualifiers
Not available imaging (CT scan and/or PET-FdG scan) in the three months before the biopsy or before the last previous treatment interruption;
Unknown HER2 status;
Node, soft tissue or other visceral as biopsy site.
Trial design
Treatments tested in this trial
- Trastuzumab deruxtecan (DS-8201a)
Treatment groups
Locations
1Sponsors and collaborators
Fondazione IRCCS Istituto Nazionale dei Tumori, Milano
Lead sponsor