Retrospective Registry Providing Baseline Data on the Outcome of Left Atrial (LA) or LA Appendage (LAA) Thrombus in Patients With Nonvalvular Atrial Fibrillation (AF) or Atrial Flutter After Standard of Care (SoC) Anticoagulant Therapy
CLOT-AF
2 other identifiers
observational
160
7 countries
7
Brief Summary
Thrombus outcome data will be collected retrospectively during 2011-2012 as a historical baseline of SoC with oral VKA (Vitamin K Antagonist(s) for the treatment of patients with nonvalvular AF or atrial flutter documented with LA/ LAA thrombi on transesophag-eal echocardiography (TEE). The study is a company-sponsored, global, multi-center, retrospective, non-interventional study. Patients who suffered from hemodynamically stable nonvalvular AF or atrial flutter and had a diagnosed LA/ LAA thrombus between January 1st, 2011 and December 31st, 2012 will be identified through screening and review of medical records and included in the registry. Retrospective patient data will be collected from May 2nd, 2013 to May 2nd, 2014. The observation of each patient will cover the period from the diagnosis of an LA/ LAA thrombus until the end-of-treatment TEE following the 3-12 week SoC anticoagulation (AC) therapy. If no end-of-treatment TEE has been performed during 3-12 weeks of AC therapy, the observational period will end at 12 weeks after diagnosis at the latest. If more than one TEE was performed during treatment, the thrombus outcome will be collected from the last TEE performed within 12 weeks of treatment start.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started May 2013
7 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 1, 2013
CompletedFirst Submitted
Initial submission to the registry
August 22, 2013
CompletedFirst Posted
Study publicly available on registry
August 27, 2013
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
December 1, 2014
CompletedDecember 23, 2014
December 1, 2014
1.6 years
August 22, 2013
December 21, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Thrombus resolution (completely disappeared) rate confirmed on TEE.
after 3-12 weeks of SoC treatment or lost to follow up, whichever is later
Secondary Outcomes (2)
Stroke or non central nervous system (CNS) systemic thromboembolism rate
after 3-12 weeks of SoC treatment or lost to follow up, whichever is later
All bleeding (major, non-major, unknown severity) rates
after 3-12 weeks of SoC treatment or lost to follow up, whichever is later
Study Arms (1)
Group 1
Interventions
Patients who suffered from hemodynamically stable nonvalvular AF or atrial flutter and had a diagnosed LA/ LAA thrombus between January 1st, 2011 and December 31st, 2012
Eligibility Criteria
Patients who suffered from hemodynamically stable nonvalvular AF or atrial flutter and had a diagnosed LA/ LAA thrombus between January 1st, 2011 and December 31st, 2012.
You may qualify if:
- Men or women age ≥ 18 years at data recording
- Hemodynamically stable nonvalvular AF or atrial flutter
- Documented LA/ LA thrombus on TEE
You may not qualify if:
- Valvular AF ( ESC 2012 definition)
- History of cardiac thrombus confirmed on TEE
- Intracardiac tumors, e.g. atrial myxoma
- Active endocarditis
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Bayerlead
Study Sites (7)
Unknown Facility
Many Locations, 1309, Bulgaria
Unknown Facility
Many Locations, 75012, France
Unknown Facility
Many Locations, North Rhine-Westphalia, 53105, Germany
Unknown Facility
Many Locations, 91-347, Poland
Unknown Facility
Many Locations, 115093, Russia
Unknown Facility
Many Locations, 34846, Turkey (Türkiye)
Unknown Facility
Many Locations, 65025, Ukraine
Related Publications (1)
Lip GY, Hammerstingl C, Marin F, Cappato R, Meng IL, Kirsch B, Morandi E, van Eickels M, Cohen A. Rationale and design of a study exploring the efficacy of once-daily oral rivaroxaban (X-TRA) on the outcome of left atrial/left atrial appendage thrombus in nonvalvular atrial fibrillation or atrial flutter and a retrospective observational registry providing baseline data (CLOT-AF). Am Heart J. 2015 Apr;169(4):464-71.e2. doi: 10.1016/j.ahj.2014.12.020. Epub 2015 Jan 6.
PMID: 25819852DERIVED
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Bayer Study Director
Bayer
Study Design
- Study Type
- observational
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 22, 2013
First Posted
August 27, 2013
Study Start
May 1, 2013
Primary Completion
December 1, 2014
Study Completion
December 1, 2014
Last Updated
December 23, 2014
Record last verified: 2014-12