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Determinants of choice in offering drug holidays during first-line therapy for metastatic colorectal cancer.

Silvio Ken GarattiniMarta BonottoLuca PorcuElena OngaroLorenzo GerratanaDebora BasileAnnamaria ParnofielloGiacomo PelizzariFrancesco CortiulaCarla CorvajaMariaelena CasagrandeGiovanni Gerardo CardellinoAngela BuonadonnaGiuseppe AprileFabio PuglisiGianpiero FasolaNicoletta Pella
Published in: Future oncology (London, England) (2020)
Background: 'Drug holidays' (DH) for metastatic colorectal cancer (mCRC) were introduced to preserve quality of life. We studied factors associated to a DH offer in first line. Materials & methods: We retrospectively analyzed 754 consecutive patients treated with chemotherapy for mCRC in two Italian institutions between 2005 and 2017. Associations between baseline clinical-pathological factors and DH (56 or more days of treatment interruption) were investigated. Results: In 754 patients, previous metastasectomy, previous thermoablation and previous surgery of primary tumor were independently associated with DH. Excluding procedures or clinical trials: primary rectal cancer and resection of primary tumor were significantly associated to DH. Conclusions: DH was offered to patients with lower burden of disease, but further investigations are needed to safely guide a holiday strategy.
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