According to current guidelines, duration of anticoagulant treatment after a venous thromboembolic event varies from 3 months to indefinite treatment depending on the estimated risks of venous thromboembolism (VTE) recurrence and bleeding. Current data for edoxaban are limited to a maximum treatment duration of 12 months.

Therefore, this study aims to gather further insight into efficacy (i.e. symptomatic recurrent VTE) and safety (i.e. bleeding events, liver adverse events, all-cause mortality and other drug related adverse events) of extended treatment with edoxaban up to 12 months in an unselected patient population in routine clinical practice.

Edoxaban is an orally administered anticoagulant that inhibits coagulation factor Xa. It has been approved by the Ministry of Food and Drug Safety (MFDS) in Korea (date: 25th, August 2015) for the: Reduction in the risk of stroke and systemic embolism in patients with non valvular atrial fibrillation (NVAF) Treatment of deep vein thrombosis (DVT) and pulmonary embolism (PE) Reduction in the risk of recurrent DVT and PE, and by Taiwan Food and Drug Administration (TFDA) in Taiwan (date: 24th, February, 2016) for the Prevention of stroke and systemic embolism in adult patients with NVAF with one or more risk factors, such as congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, prior stroke or transient ischemic attack (TIA). Treatment of deep vein thrombosis (DVT) and pulmonary embolism (PE) following 5 to 10 days of initial therapy with a parenteral anticoagulant.

According to current guidelines, duration of anticoagulant treatment after a venous thromboembolic event varies from 3 months to indefinite treatment depending on the estimated risks of venous thromboembolism (VTE) recurrence and bleeding. Current data for edoxaban are limited to a maximum treatment duration of 12 months.

This non-interventional study aims to gather further insight into efficacy (i.e. symptomatic recurrent VTE) and safety (i.e. bleeding events, liver adverse events, all-cause mortality and other drug related adverse events) of extended treatment with edoxaban up to 12 months in approximately 350 patients in an unselected patient population in routine clinical practice.

Inclusion Criteria:

• Established acute initial or recurrent VTE
• Patients prescribed treatment with edoxaban according to package information before participation in the trial
• Written informed consent for participation in the study (ICF)
• Not simultaneously participating in any interventional study

Exclusion Criteria:

• None

All patients with established acute initial or recurrent VTE treated with edoxaban according to package information. To ensure that the physician's prescribing behaviour will not be influenced, patients may only be included after the treating physician has made the clinical decision to prescribe edoxaban. Patients must have provided written informed consent for participation in the study (ICF) and should not participate simultaneously in any interventional study.

De-identified individual participant data (IPD) and applicable supporting clinical trial documents may be available upon request at https://vivli.org/. In cases where clinical trial data and supporting documents are provided pursuant to our company policies and procedures, Daiichi Sankyo will continue to protect the privacy of our clinical trial participants. Details on data sharing criteria and the procedure for requesting access can be found at this web address: https://vivli.org/ourmember/daiichi-sankyo/

Studies for which the medicine and indication have received EU and US marketing approval on or after 01 January 2014 or by the US or EU Health Authorities when regulatory submissions in both regions are not planned and after the primary study results have been accepted for publication.

Formal request from qualified scientific and medical researchers on IPD and clinical study documents from clinical trials supporting products submitted and licensed in the United States and the European Union from 01 January 2014 and beyond for the purpose of conducting legitimate research. This must be consistent with the principle of safeguarding study participants' privacy and consistent with provision of informed consent.