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Anticoagulation For Pulmonary Hypertension in Sickle Cell Disease

NCT01036802 · Status: TERMINATED · Phase: PHASE2 · Type: INTERVENTIONAL · Enrollment: 3

Last updated 2016-05-09

Study results available
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Summary

Sickle cell disease (SCD) is often referred to as a hypercoagulable state. However, the contribution of coagulation activation to the pathogenesis of SCD remains uncertain. Pulmonary hypertension (PHT) is a common complication associated with significant morbidity and mortality. Autopsy studies of SCD patients with PHT show evidence of in situ thrombosis involving pulmonary vessels, similar to findings in non-sickle cell patients with PHT. Anticoagulation has been reported to be of benefit in non-sickle cell patients with PHT. With the evidence of increased coagulation activation in SCD, PHT represents a clinical endpoint that may be used to evaluate the contribution of coagulation activation to the pathophysiology of SCD. The investigators hypothesize that increased thrombin generation, as well as platelet activation are central to the pathophysiology of SCD and contribute to the occurrence of several SCD-related complications, including PHT. As a consequence, treatment modalities that down-regulate thrombin generation would be expected to delay the progression of PHT and result in improved survival in patients with SCD.

Conditions

  • Pulmonary Hypertension

Interventions

DRUG

Warfarin

Patients on the active treatment arm will receive warfarin to achieve a target international normalized ratio of between 2 and 3

DRUG

Placebo

Sponsors & Collaborators

  • National Heart, Lung, and Blood Institute (NHLBI)

    collaborator NIH

  • University of North Carolina, Chapel Hill

    lead OTHER

Principal Investigators

  • Kenneth I Ataga, MD · University of North Carolina, Chapel Hill

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
16 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2009-12-31
Primary Completion
2012-09-30
Completion
2012-09-30

Countries

  • United States

Study Locations

More Related Trials

Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01036802 on ClinicalTrials.gov