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Completed

NCT Number: NCT02894450

Study of Clinical and Laboratory Variables Associated With a Direct Oral Anticoagulant Bioassay Higher Among Those Aged Over 75 Years

The objective of this study was to investigate whether there is a link between clinical and biological variables and bioassay high xaban in elderly patients as part of an unscheduled hospitalization.

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Key information

Conditions

Atrial Fibrillation Arrhythmias, Cardiac Cardiovascular Diseases Heart Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms

Age range

75 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

CHU de Nantes

Nantes, 44093, France

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥ 75 years
  • Entering SAU or MPG (Nantes University Hospital) as part of an unscheduled hospitalization for acute or subacute disease (About MPG, will be included patients admitted to the department within 48 hours of calling the doctor)
  • In xaban to entry (dabigatran, rivaroxaban, Apixaban) for non-valvular atrial fibrillation
  • In whom hemostasis tests will be prescribed as part of usual care
  • Patient has given its verbal agreement

Exclusion criteria

Patients with the following criteria may not be included:

  • Patients refusing to participate in the study
  • Patients under guardianship
  • Inability to obtain the date and time of the last dose of xaban

Treatment and study plan

Blood Test

Other

bioassay xaban

Primary outcomes

  1. bioassay direct oral anticoagulants

    Time frame: Baseline

Sponsors and collaborators

Lead sponsor

Nantes University Hospital

Other

Registry information

Official study title

Study of Clinical and Laboratory Variables Associated With a Direct Oral Anticoagulant Bioassay (Xaban) Higher Among Those Aged Over 75 Years, as AOD for Atrial Fibrillation

Acronym: AOD-SA

Important dates

Study start
2014
Primary completion
2015
Study completion
2015
First posted
Sep 9, 2016
Registry last updated
Jun 24, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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