{Reference Type}: Journal Article {Title}: Effectiveness and safety of continuous low-molecular-weight heparin versus switching to direct oral anticoagulants in cancer-associated venous thrombosis. {Author}: Kang W;Huang C;Yan VKC;Wei Y;Shami JJP;Li STH;Yang Y;Ye X;Tang J;Lee SF;Lee VHF;Chan SL;El Helali A;Lam KO;Ngan RKC;Wong ICK;Chan EW; {Journal}: Nat Commun {Volume}: 15 {Issue}: 1 {Year}: 2024 Jul 5 {Factor}: 17.694 {DOI}: 10.1038/s41467-024-50037-1 {Abstract}: Given the existing uncertainty regarding the effectiveness and safety of switching from low-molecular-weight heparin (LMWH) to direct oral anticoagulants (DOACs) in patients with cancer-associated venous thrombosis (CAT), we conducted a comprehensive population-based cohort study utilizing electronic health database in Hong Kong. A total of 4356 patients with CAT between 2010 and 2022 were included, with 1700 (39.0%) patients switching to DOAC treatment. Compared to continuous LMWH treatment, switching to DOACs was associated with a significantly lower risk of hospitalization due to venous thromboembolism (HR: 0.49 [95% CI = 0.35-0.68]) and all-cause mortality (HR: 0.67 [95% CI = 0.61-0.74]), with no significant difference in major bleeding (HR: 1.04 [95% CI = 0.83-1.31]) within six months. These findings provide reassurance regarding the effectiveness and safety of switching from LMWH to DOACs among patients with CAT, including vulnerable patient groups.