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CompletedNCT02470767SILVER-APUpdated Feb 16, 2017

An Observational Cross-sectional Study Evaluating the Sociodemographic and Clinical Characteristics of Patients Diagnosed With NVAF With a Risk of Stroke or Systemic Embolism, Who Are on Treatment to Adequately Control Their Coagulation and Treated in Primary Care Centres

An observational study in Stroke, Prevention and Control and Atrial Fibrillation, sponsored by Bayer. Completed at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-02-16.

Sponsored by Bayer · Observational

Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
792
Ages
18 Years and older
Sex
All
01

Study summary

describe the sociodemographic and clinical characteristics of patients diagnosed with non-valvular atrial fibrillation (NVAF) at risk of stroke or systemic embolism on anticoagulant therapy who have changed their therapeutic regimen, due to any clinical situation, based on the doctor's routine clinical practice and are currently on treatment with a direct oral anticoagulant (DOAC)

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Conditions studied

  • Stroke
  • Prevention and Control
  • Atrial Fibrillation
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In context

Stroke

7,286 studies on the registry are indexed under Stroke; 2,013 are open to participants now.

This study's enrollment of 792 is above the median of 160 across 1,692 observational studies indexed under Stroke.

Browse Stroke studies →

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients at risk of stroke or systemic embolism on anticoagulant therapy, who have changed their therapeutic regimen according to their doctor's decision, due to any clinical situation and based on routine clinical practice, and who at the time of enrolment in the study have been receiving treatment with a DOAC for at least three months

Inclusion criteria

  • Patients ≥18 years of age diagnosed with NVAF with a risk of stroke or systemic embolism treated in primary care centres.
  • Patients on regular treatment with anticoagulants who have changed their ther-apeutic regimen due to any clinical situation and have been on treatment with a DOAC for at least three months before being recruited (date of signing the in-formed consent).
  • Patients whose DOAC has been indicated by the primary care physician.
  • Patients who have given their informed consent in writing.

Exclusion criteria

Exclusion Criteria:

  • Patients who changed their anticoagulant therapy within a period of less than three months before signing the informed consent.
  • Patients with cognitive impairment preventing them from understanding what is written in the patient information sheet or the informed consent, or from per-forming the self-administered questionnaires.
  • Patients who started anticoagulant therapy for NVAF with a DOAC.
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Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
792 participants (actual)

Groups and cohorts

  • DOAC treated patients

    Patients diagnosed with Non-Valvular Atrial Fribilation at risk of stroke or systemic embolism treated in primary care centres with DOAC.

    Drug: Direct Oral Anticoagulant (DOAC)

Interventions

  • DrugDirect Oral Anticoagulant (DOAC)

    Treatment pattern following the summary of product characteristics

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What researchers measure

Primary outcomes

  1. Composite of demographic characteristics: age, gender and race

    sociodemographic data

    Time frame: At baseline visit

  2. Composite of relevant cardiovascular events: stroke, TIA, systemic embolism, bleeding

    clinical characteristics

    Time frame: At baseline visit

  3. Composite of comorbidities: hypertension, heart failure, diabetes mellitus, kidney failure, dyslipidemia,

    clinical characteristics

    Time frame: At baseline visit

  4. Data on the Non-Valvular Atrial Fibrillation treatment: relevant active substances

    clinical characteristics

    Time frame: At baseline visit

  5. Concomitant treatments: relevant active substances

    clinical characteristics

    Time frame: At baseline visit

  6. Risk of thromboembolic event based on the CHADS2 score

    clinical characteristics

    Time frame: At baseline visit

  7. Risk of thromboembolic event based on the CHA2DS2-VASc score

    clinical characteristics

    Time frame: At baseline visit

  8. Risk of bleeding based on the HAS-BLED score

    clinical characteristics

    Time frame: At baseline visit

Secondary outcomes

  1. Adherence to treatment

    use of Haynes-Sackett test

    Time frame: At baseline visit

  2. Satisfaction of treatment

    use of ACTS questionnaire

    Time frame: At baseline visit

  3. Reason of the change in treatment: according to Spanish guideline for the SPAF management: IPT (Informe de Posicionamiento Terapeutico)

    use IPT guideline

    Time frame: At baseline visit

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Study locations

1 site
  • Many Locations, Spain
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Feb 16, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02470767
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Jun 12, 2015
Start date
May 2015
Primary completion
Dec 2015
Completion
Mar 2016
Last update
Feb 16, 2017

Study contacts

Bayer Study Director
study director · Bayer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Feb 2017. You cannot join it, but the record below documents what was studied.

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