Ruxolitinib is a recommended second-line treatment for the prevention of thrombosis in patients with polycythemia vera who become resistant or intolerant to hydroxyurea; however, evidence regarding its efficacy in terms of thrombosis reduction is uncertain. We searched Medline, Embase, and archives of abstracts from the European Hematology Association and the American Society of Hematology annual congresses from 2014 onward for randomized controlled trials comparing the treatment vs best available therapy (BAT). Our search retrieved 80 records; after screening of abstracts and full text, the total was reduced to 16. Evidence came from 4 randomized controlled trials, including 663 patients (1057 patients per year). We estimated a thrombosis risk ratio of 0.56 for ruxolitinib BAT, corresponding to an incidence of 3.09% and 5.51% patients per year, respectively. The number of thrombotic events reported with ruxolitinib was consistently lower than that with BAT in our sample, but, globally, the difference did not reach significance (P 5 .098). Hard evidence in favor of ruxolitinib is lacking; a clinical trial on selected patients at high risk of thrombosis would be warranted, but its feasibility is questionable.
Ruxolitinib for the prevention of thrombosis in polycythemia vera: a systematic review and meta-analysis / Masciulli, A; Ferrari, A; Carobbio, A; Ghirardi, A; Barbui, T. - In: BLOOD ADVANCES. - ISSN 2473-9529. - 4:2(2020), pp. 380-386. [10.1182/bloodadvances.2019001158]
Ruxolitinib for the prevention of thrombosis in polycythemia vera: a systematic review and meta-analysis
Carobbio A;
2020
Abstract
Ruxolitinib is a recommended second-line treatment for the prevention of thrombosis in patients with polycythemia vera who become resistant or intolerant to hydroxyurea; however, evidence regarding its efficacy in terms of thrombosis reduction is uncertain. We searched Medline, Embase, and archives of abstracts from the European Hematology Association and the American Society of Hematology annual congresses from 2014 onward for randomized controlled trials comparing the treatment vs best available therapy (BAT). Our search retrieved 80 records; after screening of abstracts and full text, the total was reduced to 16. Evidence came from 4 randomized controlled trials, including 663 patients (1057 patients per year). We estimated a thrombosis risk ratio of 0.56 for ruxolitinib BAT, corresponding to an incidence of 3.09% and 5.51% patients per year, respectively. The number of thrombotic events reported with ruxolitinib was consistently lower than that with BAT in our sample, but, globally, the difference did not reach significance (P 5 .098). Hard evidence in favor of ruxolitinib is lacking; a clinical trial on selected patients at high risk of thrombosis would be warranted, but its feasibility is questionable.Pubblicazioni consigliate
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