Abstract
Administration of bevacizumab to ovarian cancer patients with distal deep vein thrombosis (DVT) is problematic because of lack of evidence about the likely outcomes. We conducted a preliminary study in ovarian cancer patients with DVT who received bevacizumab combined with a direct oral anticoagulant (DOAC). We retrospectively investigated patients with advanced or recurrent epithelial ovarian cancer and distal DVT diagnosed by ultrasonography who underwent chemotherapy containing bevacizumab (15mg/kg every 3weeks) combined with DOAC therapy. Bevacizumab was administered to 88 patients, including 7 patients (7.9%) receiving concomitant DOAC therapy for distal DVT. In these 7 patients, the median body mass index was 21.3kg/m2, median D-dimer level at diagnosis of DVT was 4.3µg/mL, and median duration of DOAC therapy was 8months. Adverse events during DOAC therapy were grade 1 epistaxis and grade 1 hemorrhoidal bleeding in one patient each. DVT resolved in four patients and was unchanged in three patients, with no central progression or secondary thromboembolism. In ovarian cancer patients who have distal DVT, bevacizumab can possibly be administered safely when combined with a DOAC. To confirm this finding, further investigation on a larger scale will be required.
Published Version
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