Clinical and Laboratory Predictors Associated With Stroke or Systemic Embolism in Low Risk Atrial Fibrillation Patients

NCT03147911 | Completed

• 1 other identifier: KUGH17012 (CLASS-AF)
• Study Type: observational
• Target: 1,181
• Locations: 1 country
• Sites: 9

Brief Summary

The purposes of this study are to assess the prevalence of patients with a low risk of stroke or systemic embolism based on a CHA2DS2-VASc score among patients who have an AF-related thromboembolism and to identify the clinical and laboratory risk factors associated with thromboembolism in AF patients with a CHA2DS2-VA score of 0 or 1.

Conditions

Atrial Fibrillation

Keywords

Stroke or systemic embolism; CHA2DS2-VASc score

Outcome Measures

Primary Outcomes (1)

• The novel risk stratification regarding stroke or systemic embolism in order to discriminate true low-risk patients from low-risk patients based on a CHA2DS2-VASc score.

  The identification of clinical and laboratory factors that can predict stroke or systemic embolism in non-valvular AF patients with a CHA2DS2-VA score of 0 or 1.

  Up to 1 year

Secondary Outcomes (1)

• The prevalence of patients with a CHA2DS2-VASc score of 0 or 1 among patients who have a AF-related thromboembolism.

  Up to 1 year

Study Arms (2)

Stroke or systemic embolism : Positive

\- 583 patients

Stroke or systemic embolism : Negative

\- 598 patients

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Atrial Fibrillation(AF) patients defined as a low risk group based on a CHA2DS2-VASc score

You may qualify if:

• Patients who experienced the stroke or systemic embolism between 2013 and 2016
• Patients who had AF before the occurrence of the stroke or systemic embolism
• Patients whose CHA2DS2-VASc score of 0 or 1 in men or CHA2DS2-VASc score of 1 or 2 in female at the time of the the stroke or systemic embolism
• Willing and able to provide informed consent
• Age greater than or equal to 18 years
• Patients who did not experience the stroke or systemic embolism between 2013 and 2016
• Patients who had AF
• Patients whose CHA2DS2-VASc score of 0 or 1 in men or CHA2DS2-VASc score of 1 or 2 in female
• Willing and able to provide informed consent
• Age greater than or equal to 18 years

You may not qualify if:

• Patients with more than mild mitral valve stenosis or prosthetic mitral valve

Sponsors & Collaborators

• Korea University Guro Hospital: lead
• Samjin Pharmaceutical Co., Ltd.: collaborator

Study Sites (9)

Korea University Ansan Hospital

Ansan, 15355, South Korea

Location

Pusan National University Hospital

Busan, 49241, South Korea

Location

Kosin University Gospel Hospital

Busan, 49267, South Korea

Location

Chungnam National University Hospital

Daejeon, 35015, South Korea

Location

Wonkwang University Sanbon Hospital

Gyeonggi-do, 15865, South Korea

Location

Gachon University Gil Medical Center

Incheon, 21565, South Korea

Location

Jaemin Shim

Seoul, 02841, South Korea

Location

Chung-ang University Hospital

Seoul, 06973, South Korea

Location

Korea University Guro Hospital

Seoul, 08308, South Korea

Location

Related Publications (20)

• Olesen JB, Lip GY, Hansen ML, Hansen PR, Tolstrup JS, Lindhardsen J, Selmer C, Ahlehoff O, Olsen AM, Gislason GH, Torp-Pedersen C. Validation of risk stratification schemes for predicting stroke and thromboembolism in patients with atrial fibrillation: nationwide cohort study. BMJ. 2011 Jan 31;342:d124. doi: 10.1136/bmj.d124.

  PMID: 21282258 BACKGROUND

• Chao TF, Lin YJ, Tsao HM, Tsai CF, Lin WS, Chang SL, Lo LW, Hu YF, Tuan TC, Suenari K, Li CH, Hartono B, Chang HY, Ambrose K, Wu TJ, Chen SA. CHADS(2) and CHA(2)DS(2)-VASc scores in the prediction of clinical outcomes in patients with atrial fibrillation after catheter ablation. J Am Coll Cardiol. 2011 Nov 29;58(23):2380-5. doi: 10.1016/j.jacc.2011.08.045.

  PMID: 22115643 BACKGROUND

• Potpara TS, Polovina MM, Licina MM, Marinkovic JM, Prostran MS, Lip GY. Reliable identification of "truly low" thromboembolic risk in patients initially diagnosed with "lone" atrial fibrillation: the Belgrade atrial fibrillation study. Circ Arrhythm Electrophysiol. 2012 Apr;5(2):319-26. doi: 10.1161/CIRCEP.111.966713. Epub 2012 Feb 8.

  PMID: 22319004 BACKGROUND

• Olesen JB, Torp-Pedersen C, Hansen ML, Lip GY. The value of the CHA2DS2-VASc score for refining stroke risk stratification in patients with atrial fibrillation with a CHADS2 score 0-1: a nationwide cohort study. Thromb Haemost. 2012 Jun;107(6):1172-9. doi: 10.1160/TH12-03-0175. Epub 2012 Apr 3.

  PMID: 22473219 BACKGROUND

• Chao TF, Liu CJ, Chen SJ, Wang KL, Lin YJ, Chang SL, Lo LW, Hu YF, Tuan TC, Wu TJ, Chen TJ, Tsao HM, Chen SA. Atrial fibrillation and the risk of ischemic stroke: does it still matter in patients with a CHA2DS2-VASc score of 0 or 1? Stroke. 2012 Oct;43(10):2551-5. doi: 10.1161/STROKEAHA.112.667865. Epub 2012 Aug 7.

  PMID: 22871677 BACKGROUND

• Guo Y, Apostolakis S, Blann AD, Wang H, Zhao X, Zhang Y, Zhang D, Ma J, Wang Y, Lip GY. Validation of contemporary stroke and bleeding risk stratification scores in non-anticoagulated Chinese patients with atrial fibrillation. Int J Cardiol. 2013 Sep 30;168(2):904-9. doi: 10.1016/j.ijcard.2012.10.052. Epub 2012 Nov 17.

  PMID: 23167998 BACKGROUND

• Camm AJ, Lip GY, De Caterina R, Savelieva I, Atar D, Hohnloser SH, Hindricks G, Kirchhof P; ESC Committee for Practice Guidelines (CPG). 2012 focused update of the ESC Guidelines for the management of atrial fibrillation: an update of the 2010 ESC Guidelines for the management of atrial fibrillation. Developed with the special contribution of the European Heart Rhythm Association. Eur Heart J. 2012 Nov;33(21):2719-47. doi: 10.1093/eurheartj/ehs253. Epub 2012 Aug 24. No abstract available.

  PMID: 22922413 BACKGROUND

• January CT, Wann LS, Alpert JS, Calkins H, Cigarroa JE, Cleveland JC Jr, Conti JB, Ellinor PT, Ezekowitz MD, Field ME, Murray KT, Sacco RL, Stevenson WG, Tchou PJ, Tracy CM, Yancy CW; American College of Cardiology/American Heart Association Task Force on Practice Guidelines. 2014 AHA/ACC/HRS guideline for the management of patients with atrial fibrillation: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines and the Heart Rhythm Society. J Am Coll Cardiol. 2014 Dec 2;64(21):e1-76. doi: 10.1016/j.jacc.2014.03.022. Epub 2014 Mar 28. No abstract available.

  PMID: 24685669 BACKGROUND

• Chao TF, Lip GY, Liu CJ, Tuan TC, Chen SJ, Wang KL, Lin YJ, Chang SL, Lo LW, Hu YF, Chen TJ, Chiang CE, Chen SA. Validation of a Modified CHA2DS2-VASc Score for Stroke Risk Stratification in Asian Patients With Atrial Fibrillation: A Nationwide Cohort Study. Stroke. 2016 Oct;47(10):2462-9. doi: 10.1161/STROKEAHA.116.013880. Epub 2016 Sep 13.

  PMID: 27625386 BACKGROUND

• Siu CW, Lip GY, Lam KF, Tse HF. Risk of stroke and intracranial hemorrhage in 9727 Chinese with atrial fibrillation in Hong Kong. Heart Rhythm. 2014 Aug;11(8):1401-8. doi: 10.1016/j.hrthm.2014.04.021. Epub 2014 Apr 15.

  PMID: 24747420 BACKGROUND

• Chang KC, Wang YC, Ko PY, Wu HP, Chen YW, Muo CH, Sung FC, Li TC, Hsu CY. Increased risk of first-ever stroke in younger patients with atrial fibrillation not recommended for antithrombotic therapy by current guidelines: a population-based study in an East Asian cohort of 22 million people. Mayo Clin Proc. 2014 Nov;89(11):1487-97. doi: 10.1016/j.mayocp.2014.08.015. Epub 2014 Nov 3.

  PMID: 25444485 BACKGROUND

• Hughes M, Lip GY; Guideline Development Group, National Clinical Guideline for Management of Atrial Fibrillation in Primary and Secondary Care, National Institute for Health and Clinical Excellence. Stroke and thromboembolism in atrial fibrillation: a systematic review of stroke risk factors, risk stratification schema and cost effectiveness data. Thromb Haemost. 2008 Feb;99(2):295-304. doi: 10.1160/TH07-08-0508.

  PMID: 18278178 BACKGROUND

• Pisters R, Lane DA, Marin F, Camm AJ, Lip GY. Stroke and thromboembolism in atrial fibrillation. Circ J. 2012;76(10):2289-304. doi: 10.1253/circj.cj-12-1036. Epub 2012 Sep 19.

  PMID: 23001018 BACKGROUND

• Risk factors for stroke and efficacy of antithrombotic therapy in atrial fibrillation. Analysis of pooled data from five randomized controlled trials. Arch Intern Med. 1994 Jul 11;154(13):1449-57.

  PMID: 8018000 BACKGROUND

• Echocardiographic predictors of stroke in patients with atrial fibrillation: a prospective study of 1066 patients from 3 clinical trials. Arch Intern Med. 1998 Jun 22;158(12):1316-20. doi: 10.1001/archinte.158.12.1316.

  PMID: 9645825 BACKGROUND

• Patients with nonvalvular atrial fibrillation at low risk of stroke during treatment with aspirin: Stroke Prevention in Atrial Fibrillation III Study. The SPAF III Writing Committee for the Stroke Prevention in Atrial Fibrillation Investigators. JAMA. 1998 Apr 22-29;279(16):1273-7.

  PMID: 9565007 BACKGROUND

• Ruigomez A, Johansson S, Wallander MA, Edvardsson N, Garcia Rodriguez LA. Risk of cardiovascular and cerebrovascular events after atrial fibrillation diagnosis. Int J Cardiol. 2009 Aug 14;136(2):186-92. doi: 10.1016/j.ijcard.2008.04.050. Epub 2008 Jul 14.

  PMID: 18625526 BACKGROUND

• Van Staa TP, Setakis E, Di Tanna GL, Lane DA, Lip GY. A comparison of risk stratification schemes for stroke in 79,884 atrial fibrillation patients in general practice. J Thromb Haemost. 2011 Jan;9(1):39-48. doi: 10.1111/j.1538-7836.2010.04085.x.

  PMID: 21029359 BACKGROUND

• Tomita H, Okumura K, Inoue H, Atarashi H, Yamashita T, Origasa H, Tsushima E; J-RHYTHM Registry Investigators. Validation of Risk Scoring System Excluding Female Sex From CHA2DS2-VASc in Japanese Patients With Nonvalvular Atrial Fibrillation - Subanalysis of the J-RHYTHM Registry. Circ J. 2015;79(8):1719-26. doi: 10.1253/circj.CJ-15-0095. Epub 2015 May 13.

  PMID: 25971525 BACKGROUND

• Shin SY, Han SJ, Kim JS, Im SI, Shim J, Ahn J, Lee EM, Park YM, Kim JH, Lip GYH, Lim HE. Identification of Markers Associated With Development of Stroke in "Clinically Low-Risk" Atrial Fibrillation Patients. J Am Heart Assoc. 2019 Nov 5;8(21):e012697. doi: 10.1161/JAHA.119.012697. Epub 2019 Oct 31.

  PMID: 31668140 DERIVED

Biospecimen

Retention: NONE RETAINED

Blood samples will be collected into EDTA tubes

MeSH Terms

Conditions

Atrial Fibrillation; Stroke

Condition Hierarchy (Ancestors)

Arrhythmias, Cardiac; Heart Diseases; Cardiovascular Diseases; Pathologic Processes; Pathological Conditions, Signs and Symptoms; Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Vascular Diseases

Study Officials

• Hong Euy Lim, MD, PhD

  Professor

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Professor

Study Record Dates

• First Submitted: May 6, 2017
• First Posted: May 10, 2017
• Study Start: April 6, 2017
• Primary Completion: February 20, 2018
• Study Completion: June 14, 2018
• Last Updated: June 15, 2018

Record last verified: 2018-06

Data Sharing

• IPD Sharing: Will not share

Locations

KR (9)