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NCT00007683 · ClinicalTrials.gov registry record · Phase 3

Warfarin and Antiplatelet Therapy in Chronic Heart Failure

A Phase 3 study of Heart Failure, sponsored by US Department of Veterans Affairs.

Completed
Registry status
Phase 3
Development phase
1,587
Enrollment target
20
Study locations

NCT00007683: Completed Phase 3 study of Heart Failure, sponsored by US Department of Veterans Affairs.

NCT00007683 is a Phase 3 study of Heart Failure that has completed, run by US Department of Veterans Affairs. The registered enrollment target is 1,587 participants, below the 2,045-participant average among 397 other Heart Failure trials with a reported enrollment target (22% lower). The trial reports 20 study locations across 8 states. According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00007683, a Phase 3 study of Heart Failure, has completed, sponsored by US Department of Veterans Affairs.

COMPLETED
Registry status
Phase 3
Development phase
1,587 participants
Enrollment target
20
Study locations

Study Summary

Whether patients with chronic heart failure (CHF) should be anticoagulated is one of the oldest unresolved questions in cardiovascular therapeutics. Some authorities do not recommend anticoagulation for CHF patients in sinus rhythm, others recommend anticoagulation in patients with primary cardiomyopathy, and still others consider it more appropriate in patients with coronary artery disease (CAD). This absence of consensus reflects the lack of evidence in this area and different outlooks on the objectives of such therapy (e.g., prevention of arterial emboli or reduction in vascular events).

Primary Outcome

The primary safety end point was major bleeding episodes, defined as bleeding episodes leading to death or disability (including loss of neurological or special senses function), requiring surgical intervention, or associated with an acute decline of hemoglobin 2gm/dl or transfusion of \>1 U packed red cells or whole blood.

Conditions Studied

Interventions

  • DRUG Aspirin
  • DRUG Warfarin titrated to an INR of 2.5-3.0
  • DRUG Clopidogrel 75

Study Locations (20)

California

  • Rancho Los Amigos National Rehabilitation Center - Downey
  • VA Central California Health Care System, Fresno - Fresno
  • VA Medical Center, Loma Linda - Loma Linda
  • VA Palo Alto Health Care System - Palo Alto
  • VA Medical Center, San Francisco - San Francisco
  • VA Greater Los Angeles HCS, Sepulveda - Sepulveda
  • Cardiovascular Consultants, Walnut Creek - Walnut Creek
  • VA Greater Los Angeles Healthcare System, West LA - West Los Angeles

Connecticut

  • Cardiology Associates of Derby, P.C. - Derby
  • St. Francis Hospital and Medical Center - Hartford
  • VA Connecticut Health Care System (West Haven) - West Haven

Florida

  • Florida Cardiovascular Research - Atlantis
  • VA Medical Center, Bay Pines - Bay Pines
  • North Florida/South Georgia Veterans Health System - Gainesville

Arizona

  • Carl T. Hayden VA Medical Center - Phoenix
  • Southern Arizona VA Health Care System, Tucson - Tucson

Alabama

  • VA Medical Center, Birmingham - Birmingham

Arkansas

  • Central Arkansas VHS Eugene J. Towbin Healthcare Ctr, Little Rock - No. Little Rock

Colorado

  • VA Eastern Colorado Health Care System, Denver - Denver

District of Columbia

  • VA Medical Center, DC - Washington D.C.

Trial Details

FieldValue
Enrollment Target 1,587 participants
Start Date 1998-10
Est. Completion 2004-12
Phase Phase 3
US Department of Veterans Affairs

632 total trials

What the finished NCT00007683 record still lists

NCT00007683 is an interventional study that assigns participants to a tested intervention. Its 1,587 participants enrollment target places it among the larger protocols in the corpus, below the 2,045-participant average among 397 other Heart Failure trials with a reported enrollment target (22% lower).

The record links to 1 condition, with Heart Failure appearing as the primary indexed condition, and to 3 interventions - of which Aspirin is the first listed.

NCT00007683 names 20 study sites across 8 states, led by California, Connecticut, Florida.

Frequently Asked Questions

What is clinical trial NCT00007683 about?

NCT00007683 is a clinical study titled "Warfarin and Antiplatelet Therapy in Chronic Heart Failure". Whether patients with chronic heart failure (CHF) should be anticoagulated is one of the oldest unresolved questions in cardiovascular therapeutics. Some authorities do not recommend anticoagulation for CHF patients in sinus rhythm, others recommend anticoagulation in patients with primary cardiomyo...

What is the current status of trial NCT00007683?

This trial is currently completed. It is a Phase 3 study. The enrollment target is 1,587 participants. The study started on 1998-10. Estimated completion is 2004-12.

What conditions does trial NCT00007683 study?

This clinical trial studies the following conditions: Heart Failure.

What interventions are being tested in trial NCT00007683?

The interventions under investigation include: Aspirin (DRUG), Warfarin titrated to an INR of 2.5-3.0 (DRUG), Clopidogrel 75 (DRUG).

Who is sponsoring clinical trial NCT00007683?

This trial is sponsored by US Department of Veterans Affairs, which has 632 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT00007683 being conducted?

This trial has 20 study locations across Alabama, Arizona, Arkansas, California, Colorado. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for Heart Failure

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT00007683's enrollment target sits among peer trials

1,587 52nd of 397 higher than 346 of 397 other Heart Failure trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Heart Failure trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00007683, the US trial registry maintained by the National Library of Medicine. NCT00007683 (large enrollment · wide site footprint · completed) retrieved and formatted by PlainTrial, see methodology.