Comparison of Patient Outcomes Using Different Delivery Models of Anticoagulation Care

Completed · Not applicable

Conditions studied: Anticoagulation, Thromboembolism

In brief

Hypothesis: Does the time spent within the target INR range differ when patients are managed by AMD or IT models of anticoagulation care? Experimental Design: The 36-month trial enrolled 192 eligible patients currently receiving chronic warfarin therapy at the William S. Middleton Memorial VA Hospital. Consenting patients are enrolled and randomized to 1 of 2 groups: usual clinic care with face-to-face visits every 4 weeks (AMS model) or clinic visits every 3 months with interim laboratory visits and telephone follow-up every 4 weeks (IT model). At study conclusion, the amount of time the INR is within target range will be compared between the two groups. Thromboembolic and bleeding event rates, patient knowledge, quality of life and healthcare utilization will also be analyzed.

Key facts

Study ID

NCT00205400

Run by

University of Wisconsin, Madison

People needed

192

Starts

1999-08-01

Last updated by the study team

2016-10-27

Who can join

Age: 18 and older. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• completion of >3 months of warfarin
• indefinite warfarin therapy

You may not qualify if…

• patients who currently receive >25% of INR determinations per year from local labs
• extended absences from VA

Where it is running

• University of Wisconsin — Madison, Wisconsin, United States

Full record on ClinicalTrials.gov

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