Early Administration of Edoxaban After Acute Ischemic Stroke in Patients With Non-valvular Atrial Fibrillation

NCT ID: NCT03433235

Last Updated: 2020-12-11

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

68 participants

Study Classification

INTERVENTIONAL

Study Start Date

2018-06-19

Study Completion Date

2020-07-02

Brief Summary

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The investigators hypothesize that earlier initiation of edoxaban in AF-related stroke patients may significantly reduce the early recurrence of ischemic stroke, compared with conventional strategy of anticoagulation following 1-3-6-12 rule. To expedite the verification of the hypothesis, the investigators are planning to use diffusion weighted imaging (DWI), which has been reported to be a surrogate to predict both short-term and long-term prognosis after stroke, to detect the recurrent ischemic events. Because data on the early anticoagulation in patients with AF-related stroke are limited, the investigators decided to perform a pilot study before establishing an appropriate clinical trial protocol. This study will help estimate the efficacy and safety of early administration of edoxaban, and determine the sample size of a following clinical trial. To ensure the safety in this pilot exploration, the investigators will not include patients with severe ischemic strokes, who are often prone to experience hemorrhagic transformation in the acute post-stroke period.

Detailed Description

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In patients with ischemic stroke and atrial fibrillation (AF), the risk of stroke recurrence is high, especially shortly after the event. Because AF-related strokes are usually larger in their size and more fatal than other types of ischemic stroke, it is important to prevent recurrent cardioembolic strokes with adequate secondary prevention. However, as damaged brain tissues and vessels are prone to bleed, early anticoagulation may be harmful.

For this reason, urgent anticoagulation has not been recommended in stroke patients with AF, and the appropriate time point to start anticoagulation remains controversial. Guideline recommends 1-3-6-12 rule\* in initiating anticoagulation. However, this rule is not derived from a scientifically proven study results. Furthermore, although the risk of intracranial hemorrhage may be reduced to some extent with this strategy, the risk of early recurrence of embolic stroke may outweigh the potential benefit of delayed anticoagulation.

Edoxaban, which selectively blocks factor Xa, has a lower risk of hemorrhage, but with a similar efficacy in preventing ischemic events in patients with AF compared with warfarin. Even compared with the other factor Xa inhibitors, it is considered to have a lower risk of bleeding. Therefore, edoxaban may be safely given in the early phase in patients with stroke associated with AF, while not significantly increasing the risk of hemorrhages.

Conditions

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Acute Ischemic Stroke

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Early edoxaban initiation group

Low dose of edoxaban (15 or 30 mg) once daily from Day 2, then standard dose of edoxaban (30 or 60 mg) according to '3-6' rule.

Group Type EXPERIMENTAL

Edoxaban

Intervention Type DRUG

1-3-6-12 rule\*

Anticoagulation in patients with acute ischemic stroke and atrial fibrillation can be initiated from the following days after stroke event.

After 1 day: transient ischemic attacks

After 3 days: mild ischemic strokes (NIHSS \<8)

After 6 days: moderate ischemic strokes (NIHSS 8-16)

After 12 days: severe ischemic strokes (NIHSS \>16)

\- NIHSS: National Institute of Health Stroke Scales

Conventional edoxaban initiation group

No antithrombotic treatment† -- then standard dose of edoxaban (30 or 60 mg) according to '3-6' rule.

Group Type ACTIVE_COMPARATOR

Edoxaban

Intervention Type DRUG

1-3-6-12 rule\*

Anticoagulation in patients with acute ischemic stroke and atrial fibrillation can be initiated from the following days after stroke event.

After 1 day: transient ischemic attacks

After 3 days: mild ischemic strokes (NIHSS \<8)

After 6 days: moderate ischemic strokes (NIHSS 8-16)

After 12 days: severe ischemic strokes (NIHSS \>16)

\- NIHSS: National Institute of Health Stroke Scales

Interventions

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Edoxaban

1-3-6-12 rule\*

Anticoagulation in patients with acute ischemic stroke and atrial fibrillation can be initiated from the following days after stroke event.

After 1 day: transient ischemic attacks

After 3 days: mild ischemic strokes (NIHSS \<8)

After 6 days: moderate ischemic strokes (NIHSS 8-16)

After 12 days: severe ischemic strokes (NIHSS \>16)

\- NIHSS: National Institute of Health Stroke Scales

Intervention Type DRUG

Other Intervention Names

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Lixiana

Eligibility Criteria

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Inclusion Criteria

1. Acute ischemic strokes (\< 48 h from symptom onset) showing ischemic lesions confirmed by DWI, which are attributable to atrial fibrillation
2. Evidence of persistent or paroxysmal atrial fibrillation (already known or newly detected)
3. Age ≥20 y
4. Patients who provided informed consent

Exclusion Criteria

1. Transient ischemic attack with no DWI lesions or severe ischemic strokes (NIHSS \>16)
2. Significant hemorrhagic transformation (parenchymal hematoma type I or type II by the ECASS definition or those accompanying with worsening of an existing focal neurological deficit \[NIHSS ≥4\])10 on baseline MRI
3. Mechanical heart valve, rheumatic heart valve disease, or any other conditions requiring strong anticoagulation such as vitamin K antagonist or heparin treatment
4. Concomitant significant atherosclerotic stenosis (\>50%) in the proximal arteries, which are possibly responsible for stroke lesions
5. Recent (\<3 months) history of cerebral bleeding
6. Active internal bleeding or clinically significant bleeding
7. Severe anemia (Hb \<10 g/dL) or bleeding diathesis (platelet count \<100,000/uL or PT-INR \>1.7) (If there is no active bleeding sign, it is permitted to enroll Hb \<9 g/dL , platelet count \<70,000/uL)
8. Uncontrolled hypertension: persistent systolic pressure \>180 mmHg or diastolic pressure \>110 mmHg
9. Active, advanced medical diseases (liver, kidney, pulmonary disease or cancer) with a life expectancy \<6 months
10. Renal impairment (CrCl \<30 mL/min) or undergoing Hemodialysis (or Peritoneal Dialysis)
11. Treatment with a strong inducer of p-glycoprotein (carbamazepine, dexamethasone, doxorubicin, nefazodone, pentobarbital, phenobarbital, prazocin, rifampin, St.John's wort, tenofovir, tipranavir, trazodone, vinblastine)
12. Contraindication to MRI
13. Pregnancy, breast-feeding or having a plan to be pregnant
14. Participation in the other investigational drug trials simultaneously or within 3 months before the first administration of the study medication. Observational studies without an intervention (eg study medication) are allowed.
15. Any clinical conditions (eg abnormal lab tests) unsuitable for undergoing clinical trials at the discretion of the clinical investigators
16. Known hypersensitivity to the study drug (edoxaban), its ingredients, or formulation excipients
17. Patient with liver disease related to coagulation disorder and clinically significant bleeding risk
18. Severe Liver disease
19. Patient who has increase risk of bleeding due to the following disease

* recent gastrointestinal ulcer history
* carcinoma increased risk of bleeding
* recent brain or spinal injury
* recent brain, spinal or optical surgery histroy
* esophageal varix
* arteriovenous malformations
* vascular aneurysms (over 3.5cm)
* intra spinal or cerebral vascular disorder
20. Patient with other anticoagulants
21. intermitant or severe mitral stenosis
22. a pulmonary embolism patient who is hemodynamic unstabled or required thrombolytic therpy or pulmonary emnolectomy
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kyung Hee University Hospital

OTHER

Sponsor Role collaborator

Soon Chun Hyang University

OTHER

Sponsor Role collaborator

Dong-A University Hospital

OTHER

Sponsor Role collaborator

Jong Sung Kim

OTHER

Sponsor Role lead

Responsible Party

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Jong Sung Kim

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Jong Sung Kim, M.D.,Ph D.

Role: PRINCIPAL_INVESTIGATOR

Asan Medical Center

Locations

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Asan Medical Center

Seoul, , South Korea

Site Status

Countries

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South Korea

References

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Jauch EC, Saver JL, Adams HP Jr, Bruno A, Connors JJ, Demaerschalk BM, Khatri P, McMullan PW Jr, Qureshi AI, Rosenfield K, Scott PA, Summers DR, Wang DZ, Wintermark M, Yonas H; American Heart Association Stroke Council; Council on Cardiovascular Nursing; Council on Peripheral Vascular Disease; Council on Clinical Cardiology. Guidelines for the early management of patients with acute ischemic stroke: a guideline for healthcare professionals from the American Heart Association/American Stroke Association. Stroke. 2013 Mar;44(3):870-947. doi: 10.1161/STR.0b013e318284056a. Epub 2013 Jan 31.

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Reference Type BACKGROUND
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Lee EJ, Kang DW, Warach S. Silent New Brain Lesions: Innocent Bystander or Guilty Party? J Stroke. 2016 Jan;18(1):38-49. doi: 10.5853/jos.2015.01410. Epub 2015 Oct 15.

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Hacke W, Kaste M, Fieschi C, von Kummer R, Davalos A, Meier D, Larrue V, Bluhmki E, Davis S, Donnan G, Schneider D, Diez-Tejedor E, Trouillas P. Randomised double-blind placebo-controlled trial of thrombolytic therapy with intravenous alteplase in acute ischaemic stroke (ECASS II). Second European-Australasian Acute Stroke Study Investigators. Lancet. 1998 Oct 17;352(9136):1245-51. doi: 10.1016/s0140-6736(98)08020-9.

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Duchin K, Duggal A, Atiee GJ, Kidokoro M, Takatani T, Shipitofsky NL, He L, Zhang G, Kakkar T. An Open-Label Crossover Study of the Pharmacokinetics of the 60-mg Edoxaban Tablet Crushed and Administered Either by a Nasogastric Tube or in Apple Puree in Healthy Adults. Clin Pharmacokinet. 2018 Feb;57(2):221-228. doi: 10.1007/s40262-017-0554-0.

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Other Identifiers

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AMC 2018-0033

Identifier Type: -

Identifier Source: org_study_id