Lixiana 15 mg film-coated tablets

Each film-coated tablet contains 15 mg edoxaban (as tosilate).

For the full list of excipients, see section 6.1.

Film-coated tablet.

Orange, round-shaped film-coated tablets (6.7 mm diameter) debossed with “DSC L15”.

Prevention of stroke and systemic embolism in adult patients with nonvalvular atrial fibrillation (NVAF) with one or more risk factors, such as congestive heart failure, hypertension, age ≥ 75 years, diabetes mellitus, prior stroke or transient ischaemic attack (TIA).

Treatment of deep vein thrombosis (DVT) and pulmonary embolism (PE), and prevention of recurrent DVT and PE in adults (see section 4.4 for haemodynamically unstable PE patients).

Posology

Prevention of stroke and systemic embolism

The recommended dose is 60 mg edoxaban once daily.

Therapy with edoxaban in NVAF patients should be continued long term.

Treatment of DVT, treatment of PE and prevention of recurrent DVT and PE (VTE)

The recommended dose is 60 mg edoxaban once daily following initial use of parenteral anticoagulant for at least 5 days (see section 5.1). Edoxaban and initial parenteral anticoagulant should not be administered simultaneously.

The duration of therapy for treatment of DVT and PE (venous thromboembolism, VTE), and prevention of recurrent VTE should be individualised after careful assessment of the treatment benefit against the risk for bleeding (see section 4.4). Short duration of therapy (at least 3 months) should be based on transient risk factors (e.g. recent surgery, trauma, immobilisation) and longer durations should be based on permanent risk factors or idiopathic DVT or PE.

For NVAF and VTE the recommended dose is 30 mg edoxaban once daily in patients with one or more of the following clinical factors:

• Moderate or severe renal impairment (creatinine clearance (CrCL) 15 ‑ 50 mL/min)

• Low body weight ≤ 60 kg

• Concomitant use of the following P‑glycoprotein (P‑gp) inhibitors: ciclosporin, dronedarone, erythromycin, or ketoconazole.

Table 1: Summary of posology in NVAF and VTE (DVT and PE)

Missed dose

If a dose of Lixiana is missed, the dose should be taken immediately and then be continued the following day with the once-daily intake as recommended. The patient should not take double the prescribed dose on the same day to make up for a missed dose.

Switching to and from Lixiana

Continued anticoagulant therapy is important in patients with NVAF and VTE. There may be situations that warrant a change in anticoagulation therapy (Table 2).

Table 2: Switching

Special populations

Assessment of renal function:

• Renal function should be assessed in all patients by calculating the creatinine clearance (CrCL) prior to initiation of treatment with Lixiana to exclude patients with end stage renal disease (i.e. CrCL < 15 mL/min), to use the correct Lixiana dose in patients with CrCL 15 – 50 mL/min (30 mg once daily), in patients with CrCL > 50 mL/min (60 mg once daily) and when deciding on the use of Lixiana in patients with increased creatinine clearance (see section 4.4).

• Renal function should also be assessed when a change in renal function is suspected during treatment (e.g. hypovolaemia, dehydration, and in case of concomitant use of certain medicinal products).

The method used to estimate renal function (CrCL in mL/min) during the clinical development of Lixiana was the Cockcroft-Gault method. The formula is as follows:

• For creatinine in µmol/L:

• For creatinine in mg/dL:

This method is recommended when assessing patients' CrCL prior to and during Lixiana treatment.

Renal impairment

In patients with mild renal impairment (CrCL > 50 – 80 mL/min), the recommended dose is 60 mg Lixiana once daily.

In patients with moderate or severe renal impairment (CrCL 15 – 50 mL/min), the recommended dose is 30 mg Lixiana once daily (see section 5.2).

In patients with end stage renal disease (ESRD) (CrCL < 15 mL/min) or on dialysis, the use of Lixiana is not recommended (see sections 4.4 and 5.2).

Hepatic impairment

Lixiana is contraindicated in patients with hepatic disease associated with coagulopathy and clinically relevant bleeding risk (see section 4.3).

In patients with severe hepatic impairment Lixiana is not recommended (see sections 4.4 and 5.2).

In patients with mild to moderate hepatic impairment the recommended dose is 60 mg Lixiana once daily (see section 5.2). Lixiana should be used with caution in patients with mild to moderate hepatic impairment (see section 4.4).

Patients with elevated liver enzymes (ALT/AST > 2 x ULN) or total bilirubin ≥ 1.5 x ULN were excluded in clinical trials. Therefore Lixiana should be used with caution in this population (see sections 4.4 and 5.2). Prior to initiating Lixiana, liver function testing should be performed.

Body weight

For patients with body weight ≤ 60 kg, the recommended dose is 30 mg Lixiana once daily (see section 5.2).

Elderly patients

No dose reduction is required (see section 5.2).

Gender

No dose reduction is required (see section 5.2).

Concomitant use of Lixiana with P-glycoprotein (P-gp) inhibitors

In patients concomitantly taking Lixiana and the following P-gp inhibitors: ciclosporin, dronedarone, erythromycin, or ketoconazole, the recommended dose is 30 mg Lixiana once daily (see section 4.5).

No dose reduction is required for concomitant use of amiodarone, quinidine or verapamil (see section 4.5).

The use of Lixiana with other P-gp inhibitors including HIV protease inhibitors has not been studied.

Paediatric population

The safety and efficacy of Lixiana in children and adolescents less than 18 years of age have not been established. No data are available.

Method of administration

For oral use.

Lixiana can be taken with or without food (see section 5.2).

• Hypersensitivity to the active substance or to any of the excipients listed in section 6.1.

• Clinically significant active bleeding.

• Hepatic disease associated with coagulopathy and clinically relevant bleeding risk.

• Lesion or condition, if considered to be a significant risk for major bleeding. This may include current or recent gastrointestinal ulceration, presence of malignant neoplasms at high risk of bleeding, recent brain or spinal injury, recent brain, spinal or ophthalmic surgery, recent intracranial haemorrhage, known or suspected oesophageal varices, arteriovenous malformations, vascular aneurysms or major intraspinal or intracerebral vascular abnormalities.

• Uncontrolled severe hypertension.

• Concomitant treatment with any other anticoagulants e.g. unfractionated heparin (UFH), low molecular weight heparins (enoxaparin, dalteparin, etc.), heparin derivatives (fondaparinux, etc.), oral anticoagulants (warfarin, dabigatran etexilate, rivaroxaban, apixaban etc.) except under specific circumstances of switching oral anticoagulant therapy (see section 4.2) or when UFH is given at doses necessary to maintain an open central venous or arterial catheter (see section 4.5).

• Pregnancy and breast-feeding (see section 4.6).

Lixiana 15 mg is not indicated as monotherapy, as it may result in decreased efficacy. It is only indicated in the process of switching from Lixiana 30 mg (patients with one or more clinical factors for increased exposure; see table 1) to VKA, together with an appropriate VKA dose (see table 2, section 4.2).

Haemorrhagic risk

Edoxaban increases the risk of bleeding and can cause serious, potentially fatal bleeding. Lixiana, like other anticoagulants, is recommended to be used with caution in patients with increased risk of bleeding. Lixiana administration should be discontinued if severe haemorrhage occurs (see sections 4.8 and 4.9).

In the clinical studies mucosal bleedings (e.g. epistaxis, gastrointestinal, genitourinary) and anaemia were seen more frequently during long term edoxaban treatment compared with VKA treatment. Thus, in addition to adequate clinical surveillance, laboratory testing of haemoglobin/haematocrit could be of value to detect occult bleeding, as judged to be appropriate.

Several sub-groups of patients, as detailed below, are at increased risk of bleeding. These patients are to be carefully monitored for signs and symptoms of bleeding complications and anaemia after initiation of treatment (see section 4.8). Any unexplained fall in haemoglobin or blood pressure should lead to a search for a bleeding site.

The anticoagulant effect of edoxaban cannot be reliably monitored with standard laboratory testing.

A specific anticoagulant reversal agent for edoxaban is not available (see section 4.9).

Haemodialysis does not significantly contribute to edoxaban clearance (see section 5.2).

Elderly patients

The co-administration of Lixiana with ASA in elderly patients should be used cautiously because of a potentially higher bleeding risk (see section 4.5).

Renal impairment

The plasma AUC for subjects with mild (CrCL > 50 - 80 mL/min), moderate (CrCL 30 - 50 mL/min) and severe (CrCL < 30 mL/min but not undergoing dialysis) renal impairment was increased by 32%, 74%, and 72%, respectively, relative to subjects with normal renal function (see section 4.2 for dose reduction).

In patients with end stage renal disease or on dialysis, Lixiana is not recommended (see sections 4.2 and 5.2).

Renal function in NVAF

A trend towards decreasing efficacy with increasing creatinine clearance was observed for edoxaban compared to well-managed warfarin (see section 5.1). Therefore, edoxaban should only be used in patients with NVAF and high creatinine clearance after a careful eva luation of the individual thromboembolic and bleeding risk.

Assessment of renal function: CrCL should be monitored at the beginning of the treatment in all patients and afterwards when clinically indicated (see section 4.2).

Hepatic impairment

Lixiana is not recommended in patients with severe hepatic impairment (see sections 4.2 and 5.2).

Lixiana should be used with caution in patients with mild or moderate hepatic impairment (see section 4.2).

Patients with elevated liver enzymes (ALT/AST > 2 x ULN) or total bilirubin ≥ 1.5 x ULN were excluded in clinical trials. Therefore Lixiana should be used with caution in this population (see sections 4.2 and 5.2). Prior to initiating Lixiana, liver function testing should be performed.

Periodic hepatic monitoring is recommended for patients on Lixiana treatment beyond 1 year.

Discontinuation for surgery and other interventions

If anticoagulation must be discontinued to reduce the risk of bleeding with surgical or other procedures, Lixiana should be stopped as soon as possible and preferably at least 24 hours before the procedure.

In deciding whether a procedure should be delayed until 24 hours after the last dose of Lixiana, the increased risk of bleeding should be weighed against the urgency of the intervention. Lixiana should be restarted after the surgical or other procedures as soon as adequate haemostasis has been established, noting that the time to onset of the edoxaban anticoagulant therapeutic effect is 1 – 2 hours. If oral medicinal products cannot be taken during or after surgical intervention, consider administering a parenteral anticoagulant and then switch to oral once daily Lixiana (see section 4.2)

Anticoagulants, antiplatelets, and thrombolytics

Concomitant use of medicines affecting haemostasis may increase the risk of bleeding. These include acetylsalicylic acid (ASA), P2Y₁₂ platelet inhibitors, other antithrombotic agents, fibrinolytic therapy, and chronic nonsteroidal anti-inflammatory drugs (NSAIDs) (see section 4.5).

Prosthetic heart valves and moderate to severe mitral stenosis

Edoxaban has not been studied in patients with mechanical heart valves, in patients during the first 3 months after implantation of a bioprosthetic heart valve, with or without atrial fibrillation, or in patients with moderate to severe mitral stenosis. Therefore, use of edoxaban is not recommended in these patients.

Haemodynamically unstable PE patients or patients who require thrombolysis or pulmonary embolectomy

Lixiana is not recommended as an alternative to unfractionated heparin in patients with pulmonary embolism who are haemodynamically unstable or may receive thrombolysis or pulmonary embolectomy since the safety and efficacy of edoxaban have not been established in these clinical situations.

Patients with active cancer

Efficacy and safety of edoxaban in the treatment and/or prevention of VTE in patients with active cancer have not been established.

Laboratory coagulation parameters

Although treatment with edoxaban does not require routine monitoring, the effect on anticoagulation can be estimated by a calibrated quantitative anti-Factor Xa assay which may help to inform clinical decisions in particular situations as, e.g. overdose and emergency surgery (see also section 5.2).

Edoxaban prolongs standard clotting tests such as prothrombin time (PT), INR, and activated partial thromboplastin time (aPTT) as a result of FXa inhibition. Changes observed in these clotting tests at the expected therapeutic dose are, however, small, subject to a high degree of variability, and not useful in monitoring the anticoagulation effect of edoxaban.

Edoxaban is predominantly absorbed in the upper gastrointestinal (GI) tract. Thus, medicines or disease conditions that increase gastric emptying and gut motility have the possibility of reducing edoxaban dissolution and absorption.

P-gp inhibitors

Edoxaban is a substrate for the efflux transporter P-gp. In pharmacokinetic (PK) studies, concomitant administration of edoxaban with the P-gp inhibitors: ciclosporin, dronedarone, erythromycin, ketoconazole, quinidine, or verapamil resulted in increased plasma concentrations of edoxaban. Concomitant use of edoxaban with ciclosporin, dronedarone, erythromycin, or ketoconazole requires dose reduction to 30 mg once daily. Concomitant use of edoxaban with quinidine, verapamil, or amiodarone does not require dose reduction based on clinical data (see section 4.2).

The use of edoxaban with other P-gp inhibitors including HIV protease inhibitors has not been studied.

Lixiana 30 mg once daily must be administered during concomitant use with the following P-gp inhibitors:

• Ciclosporin: Concurrent administration of a single dose of ciclosporin 500 mg with a single dose of edoxaban 60 mg increased edoxaban AUC and C_max by 73% and 74%, respectively.

• Dronedarone: Dronedarone 400 mg twice daily for 7 days with a single concomitant dose of edoxaban 60 mg on Day 5 increased edoxaban AUC and C_max by 85% and 46%, respectively.

• Erythromycin: Erythromycin 500 mg four times daily for 8 days with a single concomitant dose of edoxaban 60 mg on Day 7 increased the edoxaban AUC and C_max by 85% and 68%, respectively.

• Ketoconazole: Ketoconazole 400 mg once daily for 7 days with a single concomitant dose of edoxaban 60 mg on Day 4, increased edoxaban AUC and C_max by 87% and 89%, respectively.

Lixiana 60 mg once daily is recommended during concomitant use with the following P-gp inhibitors:

• Quinidine: Quinidine 300 mg once daily on Days 1 and 4 and three times daily on Days 2 and 3, with a single concomitant dose of edoxaban 60 mg on Day 3, increased edoxaban AUC over 24 hours by 77% and C_max by 85%, respectively.

• Verapamil: Verapamil 240 mg once daily for 11 days with a single concomitant dose of edoxaban 60 mg on Day 10 increased the edoxaban AUC and C_max by approximately 53%.

• Amiodarone: Co-administration of amiodarone 400 mg once daily with edoxaban 60 mg once daily increased AUC by 40% and C_max by 66%. This was not considered clinically significant. In ENGAGE AF-TIMI 48 study in NVAF, efficacy and safety results were similar for subjects with and without concomitant amiodarone use.

P-gp inducers

Co-administration of edoxaban with the P-gp inducer rifampicin led to a decrease in mean edoxaban AUC and a shortened half-life, with possible decreases in its pharmacodynamic effects. The concomitant use of edoxaban with other P-gp inducers (e.g. phenytoin, carbamazepine, phenobarbital or St. John's Wort) may lead to reduced edoxaban plasma concentrations. Edoxaban should be used with caution when co-administered with P-gp inducers.

P-gp substrates

Digoxin: Edoxaban 60 mg once daily on days 1 to 14 with coadministration of multiple daily doses of digoxin 0.25 mg twice daily (days 8 and 9) and 0.25 mg once daily (days 10 to 14) increased the C_max of edoxaban by 17%, with no significant effect on AUC or renal clearance at steady state. When the effects of edoxaban on digoxin PK were also examined, the C_max of digoxin increased by approximately 28% and AUC by 7%. This was not considered clinically relevant. No dose modification is necessary when Lixiana is administered with digoxin.

Anticoagulants, antiplatelets, and NSAIDs

Anticoagulants: Co-administration of edoxaban with other anticoagulants is contraindicated due to increased risk of bleeding (see section 4.3).

Acetylsalicylic acid (ASA): Co-administration of ASA (100 mg or 325 mg) and edoxaban increased bleeding time relative to either medicine alone. Co-administration of high dose ASA (325 mg) increased the steady state C_max and AUC of edoxaban by 35% and 32%, respectively. The concomitant chronic use of high dose ASA (325 mg) with edoxaban is not recommended. Concomitant administration of higher doses than 100 mg ASA should only be performed under medical supervision.

In clinical studies concomitant use of ASA (low dose ≤ 100 mg/day), other antiplatelet agents, and thienopyridines was permitted and resulted in approximately a 2-fold increase in major bleeding in comparison with no concomitant use, although to a similar extent in the edoxaban and warfarin groups (see section 4.4). Co-administration of low dose ASA (≤ 100 mg) did not affect the peak or total exposure of edoxaban either after single dose or at steady-state.

Edoxaban can be co-administered with low dose ASA (≤ 100 mg/day).

Platelet inhibitors: In ENGAGE AF-TIMI 48 concomitant use of thienopyridines (e.g. clopidogrel) monotherapy was permitted and resulted in increased clinically relevant bleeding although with a lower risk of bleeding on edoxaban compared to warfarin (see section 4.4).

There is very limited experience on the use of edoxaban with dual antiplatelet therapy or fibrinolytic agents.

NSAIDs: Co-administration of naproxen and edoxaban increased bleeding time relative to either medicine alone. Naproxen had no effect on the C_max and AUC of edoxaban. In clinical studies, co-administration of NSAIDs resulted in increased clinically relevant bleeding. Chronic use of NSAIDs with edoxaban is not recommended.

Effect of edoxaban on other medicines

Edoxaban increased the C_max of concomitantly administered digoxin by 28%; however, the AUC was not affected. Edoxaban had no effect on the C_max and AUC of quinidine.

Edoxaban decreased the C_max and AUC of concomitantly administered verapamil by 14% and 16%, respectively.

Pregnancy

Safety and efficacy of edoxaban have not been established in pregnant women. Studies in animals have shown reproductive toxicity (see section 5.3). Due to the potential reproductive toxicity, the intrinsic risk of bleeding and the evidence that edoxaban passes the placenta, Lixiana is contraindicated during pregnancy (see section 4.3).

Women of childbearing potential should avoid becoming pregnant during treatment with edoxaban.

Breast-feeding

Safety and efficacy of edoxaban have not been established in breast-feeding women. Data from animals indicate that edoxaban is secreted into breast milk. Therefore Lixiana is contraindicated during breast-feeding (see section 4.3). A decision must be made whether to discontinue breast-feeding or to discontinue/abstain from therapy.

Fertility

No specific studies with edoxaban in humans have been conducted to eva luate effects on fertility. In a study on male and female fertility in rats no effects were seen (see section 5.3).

Lixiana has no or negligible influence on the ability to drive and use machines.

Summary of the safety profile

The safety of edoxaban has been eva luated in two Phase 3 studies including 21,105 patients with NVAF (ENGAGE AF-TIMI 48 study), and 8,292 patients with VTE (DVT and PE) (Hokusai-VTE study).

The average exposure to edoxaban 60 mg (including 30 mg dose reduced) was 2.5 years among 7,012 patients in ENGAGE AF-TIMI 48 and 251 days among 4,118 patients in Hokusai-VTE.

Adverse reactions were experienced by 2,256 (32.2%) of the patients treated with edoxaban 60 mg (30 mg dose reduced) in the ENGAGE AF-TIMI 48 study and 1,249 (30.3%) in the Hokusai-VTE study.

In both studies, the most common adverse reactions related to bleeding with edoxaban 60 mg based on adjudicated terms included cutaneous soft tissue haemorrhage (up to 5.9%) and epistaxis (up to 4.7%), while vaginal haemorrhage (9.0%) was the most common bleeding-related adverse reaction in Hokusai-VTE only.

Bleeding can occur at any site and may be severe and even fatal (see section 4.4).

Common other adverse reactions for edoxaban were anaemia, rash and abnormal liver function tests.

Tabulated list of adverse reactions

Table 3 provides the list of adverse reactions from the two pivotal Phase 3 studies in patients with VTE (DVT and PE) (Hokusai-VTE study) and AF (ENGAGE AF-TIMI 48 study) combined for both indications. The adverse reactions are classified by System Organ Class and frequency, using the following convention:

Very common (≥ 1/10), Common (≥ 1/100 to < 1/10), Uncommon (≥ 1/1,000 to < 1/100), Rare (≥ 1/10,000 to < 1/1,000), Very rare (< 1/10,000), not known (cannot be estimated from the available data).

Table 3: List of adverse reactions for NVAF and VTE

¹ Reporting rates are based on the female population in clinical trials. Vaginal bleeds were reported commonly in women under the age of 50 years, while it was uncommon in women over the age of 50 years.

Description of selected adverse reactions

Due to the pharmacological mode of action, the use of Lixiana may be associated with an increased risk of occult or overt bleeding from any tissue or organ which may result in post haemorrhagic anaemia. The signs, symptoms, and severity (including fatal outcome) will vary according to the location and degree or extent of the bleeding and/or anaemia (see section 4.9 Management of bleeding). In the clinical studies mucosal bleedings (e.g. epistaxis, gastrointestinal, genitourinary) and anaemia were seen more frequently during long term edoxaban treatment compared with VKA treatment. Thus, in addition to adequate clinical surveillance, laboratory testing of haemoglobin/haematocrit could be of value to detect occult bleeding, as judged to be appropriate. The risk of bleedings may be increased in certain patient groups e.g. those patients with uncontrolled severe arterial hypertension and/or on concomitant treatment affecting haemostasis (see Haemorrhagic risk in section 4.4). Menstrual bleeding may be intensified and/or prolonged. Haemorrhagic complications may present as weakness, paleness, dizziness, headache or unexplained swelling, dyspnoea, and unexplained shock.

Known complications secondary to severe bleeding such as compartment syndrome and renal failure due to hypoperfusion have been reported for Lixiana. Therefore, the possibility of haemorrhage is to be considered in eva luating the condition in any anticoagulated patient.

Reporting of suspected adverse reactions

Reporting suspected adverse reactions after authorisation of the medicinal product is important. It allows continued monitoring of the benefit/risk balance of the medicinal product. Healthcare professionals are asked to report any suspected adverse reactions via the Yellow Card Scheme at: www.mhra.gov.uk/yellowcard.

Overdose with edoxaban may lead to haemorrhage. Experience with overdose cases is very limited.

A specific antidote antagonising the pharmacodynamic effect of edoxaban is not available.

Early administration of activated charcoal may be considered in case of edoxaban overdose to reduce absorption. This recommendation is based on standard treatment of drug overdose and data available with similar compounds, as the use of activated charcoal to reduce absorption of edoxaban has not been specifically studied in the edoxaban clinical programme.

Management of bleeding

Should a bleeding complication arise in a patient receiving edoxaban, the next edoxaban administration should be delayed or treatment should be discontinued as appropriate. Edoxaban has a half-life of approximately 10 to 14 hours (see section 5.2). Management should be individualised according to the severity and location of the haemorrhage. Appropriate symptomatic treatment could be used as needed, such as mechanical compression (e.g. for severe epistaxis), surgical haemostasis with bleeding control procedures, fluid replacement and haemodynamic support, blood products (packed red cells or fresh frozen plasma, depending on associated anaemia or coagulopathy) or platelets.

For life-threatening bleeding that cannot be controlled with the measures such as transfusion or haemostasis, the administration of a 4-factor prothrombin complex concentrate (PCC) at 50 IU/kg has been shown to reverse the effects of Lixiana 30 minutes after completing the infusion.

Recombinant factor VIIa (r-FVIIa) can also be considered. However, there is limited clinical experience with the use of this product in individuals receiving edoxaban.

Depending on local availability, a consultation with a coagulation expert should be considered in case of major bleedings.

Protamine sulfate and vitamin K are not expected to affect the anticoagulant activity of edoxaban.

There is no experience with antifibrinolytic agents (tranexamic acid, aminocaproic acid) in individuals receiving edoxaban. There is neither scientific rationale for benefit nor experience with the use of systemic haemostatics (desmopressin, aprotinin) in individuals receiving edoxaban. Due to the high plasma protein binding edoxaban is not expected to be dialysable.

Pharmacotherapeutic group: Other antithrombotic agents, ATC code: B01A F 03

Mechanism of action

Edoxaban is a highly selective, direct and reversible inhibitor of factor Xa, the serine protease located in the final common pathway of the coagulation cascade. Edoxaban inhibits free factor Xa, and prothrombinase activity. Inhibition of factor Xa in the coagulation cascade reduces thrombin generation, prolongs clotting time and reduces the risk of thrombus formation.

Pharmacodynamic effects

Edoxaban produces rapid onset of pharmacodynamic effects within 1 - 2 hours, which corresponds with peak edoxaban exposure (C_max). The pharmacodynamic effects measured by anti-factor Xa assay are predictable and correlate with the dose and the concentration of edoxaban. As a result of FXa inhibition, edoxaban also prolongs clotting time in tests such as prothrombin time (PT), and activated partial thromboplastin time (aPTT). Changes observed in these clotting tests are expected at the therapeutic dose, however, these changes are small, subject to a high degree of variability, and not useful in monitoring the anticoagulation effect of edoxaban.

Effects of coagulation markers when switching from rivaroxaban, dabigatran, or apixaban to edoxaban

In clinical pharmacology studies, healthy subjects received rivaroxaban 20 mg once daily, dabigatran 150 mg twice daily, or apixaban 5 mg twice daily, followed by a single dose of edoxaban 60 mg on Day 4. The effect on prothrombin time (PT) and other coagulation biomarkers (e.g. anti-FXa, aPTT) was measured. Following the switch to edoxaban on Day 4 the PT was equivalent to Day 3 of rivaroxaban and apixaban. For dabigatran higher aPTT activity was observed after edoxaban administration with prior dabigatran treatment compared to that after treatment with edoxaban alone. This is considered to be due to the carry-over effect of dabigatran treatment, however, this did not lead to a prolongation of bleeding time.

Based on these data, when switching from these anticoagulants to edoxaban, the first dose of edoxaban can be initiated at the time of the next scheduled dose of the previous anticoagulant (see section 4.2).

Clinical efficacy and safety

Prevention of stroke and systemic embolism

The edoxaban clinical programme for atrial fibrillation was designed to demonstrate the efficacy and safety of two dose groups of edoxaban compared to warfarin for the prevention of stroke and systemic embolism in subjects with nonvalvular atrial fibrillation and at moderate to high risk of stroke and systemic embolic events (SEE).

In the pivotal ENGAGE AF-TIMI 48 study (an event-driven, Phase 3, multi-centre, randomised, double-blind double-dummy parallel-group study), 21,105 subjects, with a mean CHADS