Clinical trialNCT01653405CompletedInterventional

Improving Anticoagulation Control in VISN 1

SponsorVA Office of Research and DevelopmentEnrollment1,260,576AnticoagulantsAtrial FibrillationVenous Thromboembolism

View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Over 100,000 VHA patients receive anticoagulants (blood thinners) each year to prevent blood clots (including strokes). Too much anticoagulation increases the risk of serious or even fatal bleeding, and too little anticoagulation fails to protect the patient against blood clots. VHA anticoagulation clinics vary widely on how much time their patients spend in the therapeutic range, the range within which they are protected from clots but not at excessive risk of bleeding. Anticoagulation clinics can improve anticoagulation control by following several relatively simple procedures, including following-up promptly when patients are out of range and focusing on educating and supporting patients with poor control. In this study, the investigators will promote these practices at the anticoagulation clinics of the New England VA region, with a goal of improving anticoagulation control.

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Investigators

The overall officials registered on this study. Names that resolve to a FindMyKOL profile link to it; the rest are shown as registered.

Ann M. Borzecki, MD MPH
Edith Nourse Rogers Memorial Veterans Hospital, Bedford, MA
Principal Investigator
clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States

Edith Nourse Rogers Memorial Veterans Hospital, Bedford, Ma
Bedford, Massachusetts, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start: 1 Oct 2014
Primary completion: 30 Sept 2016
Completion: 30 Sept 2016
Last update posted: 16 Apr 2019
Registered enrollment: 1,260,576
Registry id: NCT01653405

clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 4 Nov 2026. Registry facts are shown as registered by the study sponsor; FindMyKOL does not interpret them.