The Home INR Study
Public ClinicalTrials.gov record NCT00032591. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
CSP #481 - The Home INR Study (THINRS)
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Since home monitors of prothrombin time (PT) may potentially improve the safety, quality, and convenience of chronic anticoagulation management, it is likely that there will be demands from providers, patients, and manufacturers to make home monitors available to VA patients. The rationale for patient self-testing (PST) is that, compared to conventional high quality anticoagulation management (HQACM), it would permit more intense monitoring and increased patient participation in his/her own care, resulting in increased precision in anticoagulation control and thus fewer events of thromboembolism (strokes) and bleeding. The secondary hypothesis is that PST and HQACM will be comparable in terms of health care utilization and cost.
Study identification
- NCT ID
- NCT00032591
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 4
- Enrollment
- 2,922 participants
Conditions and interventions
Conditions
Interventions
- Weekly patient self-testing of prothrombin time Procedure
- High quality anticoagulation management (HQACM) with conventional monthly testing Other
Procedure · Other
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Aug 2003 (Type not available)
- Primary completion
- May 2008 (Actual)
- Completion
- May 2008 (Actual)
- Last update posted
- Apr 15, 2014
2003 – 2008
United States locations
- U.S. sites
- 28
- U.S. states
- 20
- U.S. cities
- 28
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| VA Medical Center, Birmingham | Birmingham | Alabama | 35233 | — |
| VA Central California Health Care System, Fresno | Fresno | California | 93703 | — |
| VA Medical Center, Loma Linda | Loma Linda | California | 92357 | — |
| VA Palo Alto Health Care System | Palo Alto | California | 94304-1290 | — |
| VA Greater Los Angeles Healthcare System, West LA | West Los Angeles | California | 90073 | — |
| VA Eastern Colorado Health Care System, Denver | Denver | Colorado | 80220 | — |
| VA Connecticut Health Care System (West Haven) | West Haven | Connecticut | 06516 | — |
| Edward Hines, Jr. VA Hospital | Hines | Illinois | 60141-5000 | — |
| VA Medical Center, North Chicago | North Chicago | Illinois | 60064 | — |
| VA Medical Center, Iowa City | Iowa City | Iowa | 52246-2208 | — |
| VA Maryland Health Care System, Baltimore | Baltimore | Maryland | 21201 | — |
| John D. Dingell VA Medical Center, Detroit | Detroit | Michigan | 48201 | — |
| VA Medical Center, Minneapolis | Minneapolis | Minnesota | 55417 | — |
| VA Medical Center, Kansas City MO | Kansas City | Missouri | 64128 | — |
| Las Vegas | North Las Vegas | Nevada | 89036 | — |
| VA Sierra Nevada Health Care System | Reno | Nevada | 89502 | — |
| VA Western New York Healthcare System at Buffalo | Buffalo | New York | 14215 | — |
| VA Medical Center, Syracuse | Syracuse | New York | 13210 | — |
| VA Medical Center, Bronx | The Bronx | New York | 10468 | — |
| Durham VA Medical Center HSR&D COE | Durham | North Carolina | 27705 | — |
| VA Medical Center, Cleveland | Cleveland | Ohio | 44106 | — |
| VA Medical Center, Oklahoma City | Oklahoma City | Oklahoma | 73104 | — |
| VA Pittsburgh Health Care System | Pittsburgh | Pennsylvania | 15240 | — |
| VA Medical Center, Providence | Providence | Rhode Island | 02908 | — |
| VA North Texas Health Care System, Dallas | Dallas | Texas | 75216 | — |
| VA South Texas Health Care System, San Antonio | San Antonio | Texas | 78229 | — |
| VA Medical Center, Salem VA | Salem | Virginia | 24153 | — |
| Wlliam S. Middleton Memorial Veterans Hospital, Madison | Madison | Wisconsin | 53705 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 1 non-U.S. site.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00032591, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Apr 15, 2014 · Synced Oct 22, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00032591 live on ClinicalTrials.gov.