- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT02179177
Apixaban in Patients With Sickle Cell Disease
Impact of Daily Prophylaxis Dose Anticoagulation With a Factor Xa Inhibitor (Apixaban) in Patients With Sickle Cell Disease
Study Overview
Status
Intervention / Treatment
Detailed Description
There is not only significant morbidity associated with patients with SCD, but also costs associated with the numerous hospitalizations. Small studies have been unable to show clear benefit of the use of low dose anticoagulation in SCD due to limited sample size or the inclusion of very specific populations. However, studies have shown a decrease in the level of elevated prothrombotic markers with anticoagulation, and one study using full dose anticoagulation in patients with a generally milder form of SCD (with high protective hemoglobin) showed more rapid decrease in clinical pain with use of anticoagulation, suggesting a possible benefit of such therapy. Due to the paucity of data to support therapeutic dose LMWH in the more severe forms of SCD seen in the United States, we have chosen prophylactic dose anticoagulation. This study proposal attempts to critically avoid admissions by reducing daily pain scores and pain crisis as an outpatient by use of a novel oral anticoagulant.
The development of novel anticoagulants such as oral direct factor Xa (FXa) inhibitors allows the realistic use of daily prophylactic dosing as an outpatient. Past studies as detailed earlier have been limited by attempts to use subcutaneous injections or frequent, close monitoring for acenocoumarol treatment, both which are not ideal for chronic daily use. Furthermore, the use of global assays such calibrated automated thrombography (CAT) have shown further details about thrombin generation in a population which is hypercoagulable at baseline.
This is a double blind, parallel group, placebo controlled feasibility study with an enrollment target of 25 patients (12 per arm). All subjects that meet inclusion criteria as an outpatient, following a 1 month observation, will be randomized to receive an oral prophylactic dose factor Xa inhibitor (Apixaban 2.5mg po bid) or placebo for 6 months. Subjects will return for a 30 day (+/- 5 days) follow-up visit after the End of Treatment (EOT) visit. Initial randomization will occur by computerized randomization technique by the investigational drug services (IDS) at Duke University Medical Center.
Study Type
Enrollment (Actual)
Phase
- Phase 3
Contacts and Locations
Study Locations
-
-
North Carolina
-
Durham, North Carolina, United States, 27710
- Duke University Medical Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- documented HgbSS, SC or HgbS-beta0 thalassemia,
- age ≥18 years old and ≤80,
- seen in outpatient clinic ≥2 times in past year
- seen for an acute care visit (hospitalization, emergency department, or day hospital visit) for pain >2 times in the past year.
Exclusion Criteria:
- Hospitalization or day hospital visit for pain crisis within the past 2 weeks
- Patients with ≥10 acute care visits within the past year will be excluded
- Creatinine >3.0 mg/dL
- creatinine ≥1.5 mg/dL AND weight ≤60 kg
- chronic use of antiplatelet or anticoagulation medication
- Patients with known vasculopathy or Moya-Moya
- platelet count <100 X 109/L
- AST or ALT >3 times normal
- chronic red blood cell transfusions (scheduled transfusions)
- packed red blood cell transfusion within the past 2 months
- Use of CYP3A4 and P-gp inhibitor medications
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Apixaban
Active drug Apixaban 2.5mg taken by mouth twice a day
|
Drug is taken by mouth twice a day for 6 months
|
Placebo Comparator: Placebo
Sugar pills that look like Apixaban that will be taken by mouth twice a day
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Pain as Measured by Visual Analog Scale (VAS)
Time Frame: Month 1 to Month 8
|
The primary pain assessment tool will be a 10-cm horizontal visual analog scale (VAS), with "0" corresponding to no pain at one end and "10" indicating the worst pain at the other.
|
Month 1 to Month 8
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in Thrombin Generation Using D-dimer Measurement as a Surrogate
Time Frame: Enrollment to 2 months
|
Enrollment to 2 months
|
|
Daily Pain Scores While Hospitalized as Measured by VAS
Time Frame: up to 8 months
|
The primary pain assessment tool will be a 10-cm horizontal visual analog scale (VAS), with "0" corresponding to no pain at one end and "10" indicating the worst pain at the other.
Secondary analysis will be performed to evaluate differences when patients are hospitalized and on study drug versus placebo.
|
up to 8 months
|
Number of Hospitalizations During Treatment
Time Frame: up to 8 months
|
up to 8 months
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Hematologic Diseases
- Genetic Diseases, Inborn
- Anemia
- Anemia, Hemolytic, Congenital
- Anemia, Hemolytic
- Hemoglobinopathies
- Anemia, Sickle Cell
- Molecular Mechanisms of Pharmacological Action
- Enzyme Inhibitors
- Protease Inhibitors
- Factor Xa Inhibitors
- Antithrombins
- Serine Proteinase Inhibitors
- Anticoagulants
- Apixaban
Other Study ID Numbers
- Pro00048953
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Sickle Cell Disease
-
Klein Buendel, Inc.National Institute on Minority Health and Health Disparities (NIMHD); Hilton...CompletedSickle Cell Disease | Sickle Cell Anemia in Children | Sickle Cell Thalassemia | Sickle Cell SC DiseaseUnited States
-
SangartCompletedSickle Cell Disease | Anemia, Sickle Cell | Sickle Cell Anemia | Hemoglobin SC Disease | Sickle Cell Disorders | Sickle Cell Hemoglobin C DiseaseUnited Kingdom, France, Jamaica, Lebanon
-
Nova Laboratories LimitedCompletedSickle Cell Disease | Sickle Cell Hemoglobin C | Sickle Cell-beta-thalassemia | Sickle-Cell; Hemoglobin Disease, ThalassemiaUnited Kingdom, Jamaica
-
SangartWithdrawnSickle Cell Disease | Anemia, Sickle Cell | Sickle Cell Anemia | Hemoglobin SC Disease | Sickle Cell Disorders | Sickle Cell Hemoglobin C DiseaseFrance, United Kingdom, Netherlands, Turkey, Bahrain, Belgium, Brazil, Lebanon, Qatar
-
University of British ColumbiaCompletedSickle Cell Disease | Beta-Thalassemia | Sickle Cell Trait | Sickle Cell-Beta Thalassemia | Sickle Cell-SS DiseaseCanada, Nepal
-
Sidney Kimmel Cancer Center at Thomas Jefferson...National Heart, Lung, and Blood Institute (NHLBI)TerminatedSickle Cell Anemia | Sickle Cell-hemoglobin C Disease | Sickle Cell-β0-thalassemiaUnited States
-
University of RegensburgRecruitingSickle Cell Disease | Sickle Cell Anemia | Sickle Cell Disorders | HbS Disease | Hemoglobin S Disease | Sickling Disorder Due to Hemoglobin SGermany, Austria
-
Centre Hospitalier Intercommunal CreteilRecruitingSickle-Cell Disease Nos With CrisisFrance
-
HemaQuest Pharmaceuticals Inc.TerminatedSickle Cell Disease | Sickle Cell Anemia | Sickle Cell Disorders | Hemoglobin S Disease | Sickling Disorder Due to Hemoglobin SUnited States, Lebanon, Egypt, Canada, Jamaica
-
HemaQuest Pharmaceuticals Inc.CompletedSickle Cell Disease | Sickle Cell Anemia | Sickle Cell Disorders | Hemoglobin S Disease | Sickling Disorder Due to Hemoglobin SUnited States, Lebanon, Canada, Egypt, Jamaica
Clinical Trials on Placebo
-
SamA Pharmaceutical Co., LtdUnknownAcute Bronchitis | Acute Upper Respiratory Tract InfectionKorea, Republic of
-
National Institute on Drug Abuse (NIDA)CompletedCannabis UseUnited States
-
AstraZenecaParexel; Spandauer Damm 130; 14050; Berlin, GermanyCompletedMale Subjects With Type II Diabetes (T2DM)Germany
-
Heptares Therapeutics LimitedCompletedPharmacokinetics | Safety IssuesUnited Kingdom
-
GlaxoSmithKlineCompletedPulmonary Disease, Chronic ObstructiveUnited Kingdom, Netherlands
-
ItalfarmacoCompletedBecker Muscular DystrophyNetherlands, Italy
-
Shijiazhuang Yiling Pharmaceutical Co. LtdXuanwu Hospital, BeijingCompleted
-
GlaxoSmithKlineCompletedInfections, BacterialUnited States
-
West Penn Allegheny Health SystemCompletedAsthma | Allergic RhinitisUnited States