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CompletedNCT02139072Updated Oct 4, 2016

CoaguChek XS in Antiphospholipid Antibody Syndrome (APL) Patients

An observational study in Antiphospholipid Antibody Syndrome, sponsored by University of Florida. Completed at 1 site in United States. Open to participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2016-10-04.

Sponsored by University of Florida · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
60
Ages
18 Years to 75 Years
Sex
All
01

Study summary

The purpose of this study is to see if the CoaguChek XS is accurate in measuring International Normalized Ratio (INR) in patients with Antiphospholipid Antibody Syndrome (APL) receiving warfarin therapy.

Read the detailed description

Antiphospholipid Antibody Syndrome (APL) is an autoimmune disease that increases ones risk for blood clots. Therefore, these patients receive anticoagulation therapy with warfarin. Point of care devices such as the CoaguChek XS are often used to monitor International Normalized Ratio (INR) in patients on warfarin. However, the antibodies present in patients with APL may lead to false INR results when using the CoaguChek XS. This study will compare the accuracy of the CoaguChek XS in measuring INR in patients with APL by measuring INR by the CoaguChek XS and a standard lab as a reference point. Patients on warfarin for indications other than APL will be measured by both methods as well to serve as a control group.

02

Conditions studied

  • Antiphospholipid Antibody Syndrome

Keywords

  • Anticoagulation
  • International normalized ratio
  • Warfarin
03

In context

Antiphospholipid Syndrome

121 studies on the registry are indexed under Antiphospholipid Syndrome; 51 are open to participants now.

This study's enrollment of 60 is below the median of 181 across 52 observational studies indexed under Antiphospholipid Syndrome.

Browse Antiphospholipid Syndrome studies →

Lead sponsor

University of Florida is the lead sponsor of 1,254 studies on the registry; 201 are open to participants now.

Of its 170 completed or terminated interventional studies of FDA-regulated products, 136 (80%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients presenting to UF/Shands Hematology Anticoagulation Clinic for a routine office visit with pharmacy.

Inclusion criteria

  • 18-65 years of age
  • anticoagulated with warfarin for at least 1 month
  • Diagnosis of antiphospholipid antibody syndrome for intervention arm

Exclusion criteria

Exclusion Criteria:

  • any type of mental disability that would hinder their ability to give informed consent
  • any terminal illness or any other condition that could interfere with study completion, that person will be excluded.
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
60 participants (actual)
Patient registry
No

Groups and cohorts

  • CoaguChek XS

    INR measured by CoaguChek XS in patients with APL at visit 1 and visit 2, in addition to routine measure by standard lab draw

    Device: CoaguChek XS · Procedure: Standard Lab Draw

  • Standard Lab Draw

    INR measured by standard lab draw at visit 1 and visit 2 for non-APL patients, in addition to routine measurement by CoaguChek XS

    Device: CoaguChek XS · Procedure: Standard Lab Draw

Interventions

  • DeviceCoaguChek XS

    CoaguChek XS will be used to measure INR in patients with APL

  • ProcedureStandard Lab Draw

    Patients on warfarin for any indication other than APL will measure INR by venous lab draw

06

What researchers measure

Primary outcomes

  1. International Normalized Ratio (INR)

    Compare INR obtained by CoaguChek XS to INR obtained from venous lab draw. Difference of +/- 0.5 considered significant

    Time frame: Day 1 and Day 60

07

Study locations

1 site
  • UF and Shands Health
    Gainesville, Florida 32610, United States
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 4, 2016, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02139072
Lead sponsor
University of Florida
Collaborators
Hoffmann-La Roche
Responsible party
Sponsor
First posted
May 15, 2014
Start date
Mar 2015
Primary completion
Jan 2016
Completion
Jan 2016
Last update
Oct 4, 2016

Study contacts

James Taylor, PharmD
principal investigator · University of Florida

Oversight

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

Not currently enrolling

This study is completed, as verified in Jan 2016. You cannot join it, but the record below documents what was studied.

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