ClinicalTrials.gov record
Warfarin and Antiplatelet Therapy in Chronic Heart Failure
ClinicalTrials.gov ID: NCT00007683
Public ClinicalTrials.gov record NCT00007683. 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.
ClinicalTrials.gov public records Last synced May 6, 2026, 2:05 AM EDT
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
CSP #442 - Warfarin and Antiplatelet Therapy Study in Patients With Congestive Heart Failure (WATCH)
Study identification
- NCT ID
- NCT00007683
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Lead sponsor
- US Department of Veterans Affairs
- Federal
- Enrollment
- 1,587 participants
Conditions and interventions
Conditions
Interventions
- Aspirin Drug
- Clopidogrel 75 Drug
- Warfarin titrated to an INR of 2.5-3.0 Drug
Drug
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
- Sep 30, 1998
- Primary completion
- Jun 30, 2003
- Completion
- Nov 30, 2004
- Last update posted
- Jun 15, 2011
1998 – 2004
United States locations
- U.S. sites
- 79
- U.S. states
- 34
- U.S. cities
- 79
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| VA Medical Center, Birmingham | Birmingham | Alabama | 35233 | — |
| Carl T. Hayden VA Medical Center | Phoenix | Arizona | 85012 | — |
| Southern Arizona VA Health Care System, Tucson | Tucson | Arizona | 85723 | — |
| Central Arkansas VHS Eugene J. Towbin Healthcare Ctr, Little Rock | No. Little Rock | Arkansas | 72114-1706 | — |
| Rancho Los Amigos National Rehabilitation Center | Downey | California | 90242 | — |
| 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 Medical Center, San Francisco | San Francisco | California | 94121 | — |
| VA Greater Los Angeles HCS, Sepulveda | Sepulveda | California | 91343 | — |
| Cardiovascular Consultants, Walnut Creek | Walnut Creek | California | 94598 | — |
| VA Greater Los Angeles Healthcare System, West LA | West Los Angeles | California | 90073 | — |
| VA Eastern Colorado Health Care System, Denver | Denver | Colorado | 80220 | — |
| Cardiology Associates of Derby, P.C. | Derby | Connecticut | 06418 | — |
| St. Francis Hospital and Medical Center | Hartford | Connecticut | 06120 | — |
| VA Connecticut Health Care System (West Haven) | West Haven | Connecticut | 06516 | — |
| VA Medical Center, DC | Washington D.C. | District of Columbia | 20422 | — |
| Florida Cardiovascular Research | Atlantis | Florida | 33462 | — |
| VA Medical Center, Bay Pines | Bay Pines | Florida | 33708 | — |
| North Florida/South Georgia Veterans Health System | Gainesville | Florida | 32608 | — |
| Watson Clinic LLP | Lakeland | Florida | 33805 | — |
| Brevard Cardiology | Merritt Island | Florida | 32952 | — |
| VA Medical Center, Miami | Miami | Florida | 33125 | — |
| Cardiology Consultants - Pensacola | Pensacola | Florida | 32501 | — |
| University Cardiology Consultants | Tamarac | Florida | 33321 | — |
| James A. Haley Veterans Hospital, Tampa | Tampa | Florida | 33612 | — |
| VA Medical Center, Augusta | Augusta | Georgia | 30904 | — |
| Atlanta VA Medical and Rehab Center, Decatur | Decatur | Georgia | 30033 | — |
| Jesse Brown VAMC (WestSide Division) | Chicago | Illinois | 60612 | — |
| Edward Hines, Jr. VA Hospital | Hines | Illinois | 60141-5000 | — |
| Heart Care Midwest | Peoria | Illinois | 61603 | — |
| River Cities Cardiology | Jeffersonville | Indiana | 47130 | — |
| Overton Brooks VA Medical Center, Shreveport | Shreveport | Louisiana | 71101 | — |
| Edith Nourse Rogers Memorial Veterans Hospital, Bedford | Bedford | Massachusetts | 01730 | — |
| VA Boston Healthcare System, Brockton Campus | Brockton | Massachusetts | 02301 | — |
| Bay State Medical Center | Springfield | Massachusetts | 01104 | — |
| VA Ann Arbor Healthcare System | Ann Arbor | Michigan | 48113 | — |
| John D. Dingell VA Medical Center, Detroit | Detroit | Michigan | 48201 | — |
| William Beaumont Hospital | Trey | Michigan | 48095 | — |
| VA Medical Center, Minneapolis | Minneapolis | Minnesota | 55417 | — |
| VA Gulf Coast Veterans Health Care System, Biloxi | Biloxi | Mississippi | 39531 | — |
| VA Medical Center, Kansas City MO | Kansas City | Missouri | 64128 | — |
| VA Medical Center, St Louis | St Louis | Missouri | 63106 | — |
| Lincoln Division VA Nebraska Western IA HCS | Lincoln | Nebraska | 68510 | — |
| VA Sierra Nevada Health Care System | Reno | Nevada | 89502 | — |
| VA Stratton Medical Center, Albany | Albany | New York | 12208 | — |
| VA Western New York Healthcare System at Buffalo | Buffalo | New York | 14215 | — |
| New York Hospital Medical Center Of Queens | Flushing | New York | 11355 | — |
| North Shore University Hospital | Manhasset | New York | 11030 | — |
| New York Harbor HCS | New York | New York | 10010 | — |
| VA Medical Center, Northport | Northport | New York | 11768 | — |
| University of Rochester Medical Center | Rochester | New York | 14642 | — |
| VA Medical Center, Syracuse | Syracuse | New York | 13210 | — |
| Univ of North Carolina at Chapel Hill | Chapel Hill | North Carolina | 27599-7075 | — |
| VA Medical Center, Durham | Durham | North Carolina | 27705 | — |
| Margaret Pardee Memorial Hospital | Hendersonville | North Carolina | 28739 | — |
| VA Medical Center, Fargo | Fargo | North Dakota | 58102 | — |
| VA Medical Center, Cincinnati | Cincinnati | Ohio | 45220 | — |
| VA Medical Center, Cleveland | Cleveland | Ohio | 44106 | — |
| Chalmers P. Wylie VAOPC | Columbus | Ohio | 43203-1278 | — |
| VA Medical Center, Dayton | Dayton | Ohio | 45428 | — |
| VA Medical Center, Muskogee | Muskogee | Oklahoma | 74401 | — |
| VA Medical Center, Oklahoma City | Oklahoma City | Oklahoma | 73104 | — |
| VA Medical Center, Portland | Portland | Oregon | 97201 | — |
| VA Medical Center, Philadelphia | Philadelphia | Pennsylvania | 19104 | — |
| VA Pittsburgh Health Care System | Pittsburgh | Pennsylvania | 15240 | — |
| VA Medical Center, Providence | Providence | Rhode Island | 02908 | — |
| VA Black Hills Health Care System, Fort Meade | Fort Meade | South Dakota | 57741 | — |
| VA Medical Center, Memphis | Memphis | Tennessee | 38104 | — |
| VA Medical Center | Nashville | Tennessee | 37212-2637 | — |
| University of Texas Medical Branch | Galveston | Texas | 77555-0553 | — |
| Michael E. DeBakey VA Medical Center (152) | Houston | Texas | 77030 | — |
| VA South Texas Health Care System, San Antonio | San Antonio | Texas | 78229 | — |
| VA Salt Lake City Health Care System, Salt Lake City | Salt Lake City | Utah | 84148 | — |
| Hunter Holmes McGuire VA Medical Center | Richmond | Virginia | 23249 | — |
| DUCCS Research of South Boston | South Boston | Virginia | 24592 | — |
| VA Medical Center, Huntington | Huntington | West Virginia | 25704 | — |
| VA Medical Center, Martinsburg | Martinsburg | West Virginia | 25041 | — |
| 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 55 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00007683, 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 Jun 15, 2011 · Synced May 6, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00007683 live on ClinicalTrials.gov.