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A randomized controlled trial of lusutrombopag in Japanese patients with chronic liver disease undergoing radiofrequency ablation.

Abstract：

BACKGROUND:Thrombocytopenia represents an obstacle for invasive procedures in chronic liver disease (CLD) patients. We aimed to estimate the appropriate dose and evaluate the efficacy and safety of lusutrombopag for the treatment of thrombocytopenia before percutaneous liver radiofrequency ablation (RFA) for primary hepatic cancer in patients with CLD. METHODS:In this multicenter, randomized, double-blind, placebo-controlled study conducted in Japan, 61 CLD patients with platelet count < 50 × 103/µL at screening were randomized to placebo or lusutrombopag 2, 3, or 4 mg once daily for 7 days, followed by a 28-day post-treatment assessment period. The primary efficacy endpoint was the proportion of patients who did not require platelet transfusion before RFA. The pre-specified key secondary efficacy endpoint was the proportion of responders. Adverse events (AEs) and thrombosis-related AEs were evaluated. RESULTS:The proportion of patients who did not require platelet transfusion before RFA and that of responders were significantly higher (p < 0.01) in the 2-mg (80.0, 66.7%), 3-mg (81.3, 68.8%), and 4-mg groups (93.3, 80.0%) compared with the placebo group (20.0, 6.7%) and showed a dose-dependent effect. The incidence of AEs was 97.8 and 100% in the lusutrombopag (all groups) and placebo groups, respectively; no dose-related increase was observed. Four patients experienced thrombosis-related events (one each in the placebo and 2-mg groups, and two in the 4-mg group). A total of 16 (18%) adverse drug reactions occurred in the safety analysis set. CONCLUSIONS:Lusutrombopag 3 mg once daily for 7 days was effective without raising concerns about excessive increases in platelet count. CLINICAL TRIAL REGISTRATION:The study is registered at JapicCTI-121944.

journal_name

J Gastroenterol

journal_title

Journal of gastroenterology

authors

Tateishi R,Seike M,Kudo M,Tamai H,Kawazoe S,Katsube T,Ochiai T,Fukuhara T,Kano T,Tanaka K,Kurokawa M,Yamamoto K,Osaki Y,Izumi N,Imawari M

doi

10.1007/s00535-018-1499-2

subject

Has Abstract

pub_date

2019-02-01 00:00:00

pages

171-181

issue

eissn

0944-1174

issn

1435-5922

pii

10.1007/s00535-018-1499-2

journal_volume

pub_type

杂志文章,多中心研究,随机对照试验

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A randomized controlled trial of lusutrombopag in Japanese patients with chronic liver disease undergoing radiofrequency ablation.