Skip to content

SPARK: Safety Study of Pradaxa in Atrial Fibrillation Patients by Regulatory Requirement of Korea

A Regulatory Requirement Non-interventional Study to Monitor the Safety and Effectiveness of Pradaxa (Dabigatran Etexilate Mesilate, 110 mg or 150 mg b.i.d.) in Korean Patients With Non-valvular Atrial Fibrillation(SPARK: Safety Study of Pradaxa in AF Patients by Regulatory Requirement of Korea)

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT01774370
Enrollment
3182
Registered
2013-01-24
Start date
2013-01-14
Completion date
2017-02-17
Last updated
2019-03-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Atrial Fibrillation

Brief summary

This is a prospective, non-interventional, open-label, multi-centre study. It will provide additional safety information of Pradaxa in Korean patients with non-valvular AF in clinical settings.

Detailed description

Study Design: regulatory Post Marketed Surveillance study

Interventions

DRUGPradaxa (Dabigatran etexilate mesilate)

110 mg or 150 mg b.i.d.

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Observational model
OTHER
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \>= 18 years at enrollment * Patients who have been started on Pradaxa in accordance with the approved label in Korea * Patients who have signed on the data release consent form

Exclusion criteria

* Patients with previous exposure to Pradaxa * Clinically significant bleeding * Increased risk of bleeding due to following diseases; * Recent gastrointestinal ulceration * Recent intracranial or intracerebral bleeding history * Intraspinal or intracerebral vascular abnormalities * Recent brain, spinal or ophthalmic surgery * Recent brain or spinal injury * Known or suspected oesophageal varices * Arteriovenous malformations * Vascular aneurysms * Presence of malignant neoplasms at high risk of bleeding * 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, rivaroxaban, apixaban etc) except under the circumstances of switching therapy to or from Pradaxa or when UFH is given at doses necessary to maintain an open central venous or arterial catheter * Severe renal impairment (CrCl \< 30mL/min) * Concomitant treatment with oral ketoconazole or dronedarone * Patients hypersensitive to dabigatran or dabigatran etexilate or to any ingredient in the formulation * Prosthetic heart valve replacement * No creatinine clearance collected within at least one year prior to enrollment * Current participation in other clinical trials

Design outcomes

Primary

MeasureTime frameDescription
Occurrence of Adverse Events(Including Unexpected Adverse Events, Serious Adverse Events, Drug-related Adverse Events, Adverse Events Leading to Discontinuation and Adverse Events by Intensity, Outcome of the Event, Causality)up to 26 weeksOccurrence of adverse events(Including unexpected adverse events, serious adverse events, drug-related adverse events, adverse events leading to discontinuation and adverse events by intensity, outcome of the event, causality). Number analyzed presents the Number of participants with Adverse events

Secondary

MeasureTime frameDescription
Percentage of Participants With Strokeup to 26 weeksStroke was defined as an acute episode of focal or global neurological dysfunction caused by brain, spinal cord, or retinal vascular injury as a result of haemorrhage or infarction.
Percentage of Participants With Systemic Embolismup to 26 weeksSystemic embolism was defined as an acute vascular occlusion of the extremities or any organ (kidneys, mesenteric arteries, spleen, retina or grafts) and was to be documented by angiography, surgery, scintigraphy or autopsy.

Countries

South Korea

Participant flow

Recruitment details

This study is a prospective, non-interventional, open-label, multi-centre study.

Pre-assignment details

All subjects were screened for eligibility to participate in the trial. Subjects attended a specialist sites which ensured that they met all strictly implemented inclusion/exclusion criteria. Subjects were not to be entered to trial treatment if any one of the specific entry criteria was violated.

Participants by arm

ArmCount
Pradaxa Group
Physician carefully reviewed the special precautions for use in patients with risk of bleeding before determining the dose of Pradaxa and patients were prescribed dabigatran dose for 24±2 weeks from the options described below: * Dabigatran etexilate mesilate 110 mg b.i.d. (oral administration of one capsule twice daily ) * Dabigatran etexilate mesilate 150 mg b.i.d. (oral administration of one capsule twice daily)
3,053
Total3,053

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdministered prior to the contract date4
Overall StudyFollow-up failure34
Overall StudyNever taken the PRADAXA during the study4
Overall StudySubjects of contraindications34
Overall StudyViolated inclusion/exclusion criteria53

Baseline characteristics

CharacteristicPradaxa Group
Age, Continuous70.26 years
STANDARD_DEVIATION 9.64
Race and Ethnicity Not Collected— Participants
Sex: Female, Male
Female
1201 Participants
Sex: Female, Male
Male
1852 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
5 / 3,053
other
Total, other adverse events
0 / 3,053
serious
Total, serious adverse events
104 / 3,053

Outcome results

Primary

Occurrence of Adverse Events(Including Unexpected Adverse Events, Serious Adverse Events, Drug-related Adverse Events, Adverse Events Leading to Discontinuation and Adverse Events by Intensity, Outcome of the Event, Causality)

Occurrence of adverse events(Including unexpected adverse events, serious adverse events, drug-related adverse events, adverse events leading to discontinuation and adverse events by intensity, outcome of the event, causality). Number analyzed presents the Number of participants with Adverse events

Time frame: up to 26 weeks

Population: Safety analyses will be based on all patients treated, i.e. all patients who received at least one dose of Pradaxa.

ArmMeasureValue (NUMBER)
Pradaxa GroupOccurrence of Adverse Events(Including Unexpected Adverse Events, Serious Adverse Events, Drug-related Adverse Events, Adverse Events Leading to Discontinuation and Adverse Events by Intensity, Outcome of the Event, Causality)871 Adverse events
Secondary

Percentage of Participants With Stroke

Stroke was defined as an acute episode of focal or global neurological dysfunction caused by brain, spinal cord, or retinal vascular injury as a result of haemorrhage or infarction.

Time frame: up to 26 weeks

Population: Effectiveness Analysis set: Effectiveness analysis will be performed to the patients who have been on Pradaxa more than 12 weeks (in case of long-term follow up, 24 weeks).

ArmMeasureGroupValue (NUMBER)
Pradaxa GroupPercentage of Participants With StrokeNo99.70 percentage of participants
Pradaxa GroupPercentage of Participants With StrokeYes0.30 percentage of participants
Secondary

Percentage of Participants With Systemic Embolism

Systemic embolism was defined as an acute vascular occlusion of the extremities or any organ (kidneys, mesenteric arteries, spleen, retina or grafts) and was to be documented by angiography, surgery, scintigraphy or autopsy.

Time frame: up to 26 weeks

Population: Effectiveness Analysis set

ArmMeasureGroupValue (NUMBER)
Pradaxa GroupPercentage of Participants With Systemic EmbolismNo100.0 percentage of participants
UnknownPercentage of Participants With Systemic EmbolismYes percentage of participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026