- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00198588
Efficacy and Safety Study of Argatroban to Treat Heparin-Induced Thrombocytopenia
November 11, 2008 updated by: Ministry of Health, Labour and Welfare, Japan
Open-Label Trial to Evaluate the Efficacy and Safety of the Use of Argatroban in Patients With Heparin-Induced Thrombocytopenia
The purpose of the study is to evaluate efficacy and safety of argatroban in the patients with heparin-induced thrombocytopenia (HIT)/ HIT and thrombosis syndrome (HITTS).
This multi-center trial covers mainly the patients with cardiovascular diseases.
Subjects are included in the trial when they are clinically diagnosed of HIT/HITTS.
Initial dose of argatroban is 0.7μg/kg/min, which is about one-third of the approved dose in the US.
The reason of the lower initial dose is that the approved dose of argatroban in Japan (for the treatment of ischemic stroke) is about 0.7μg/kg/min and safety of higher doses of the drug are not confirmed.
A sub-study of pharmacokinetics is simultaneously conducted to reveal the relationship among the dose, aPTT, and blood drug concentration.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment (Actual)
8
Phase
- Phase 3
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Kyoto, Japan, 6068507
- Kyoto University Hospital
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Kyoto, Japan, 6028026
- Kyoto Second Red Cross Hospital
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Tokyo, Japan, 1138655
- The University of Tokyo Hospital
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Tokyo, Japan, 1528902
- National Hospital Organization Tokyo Medical Center
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Tokyo, Japan, 1608582
- Keio University Hospital
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Aichi
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Nagoya, Aichi, Japan, 4600001
- National Hospital Organization Nagoya Medical Center
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Nagoya, Aichi, Japan, 4668560
- Nagoya University Hospital
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Nagoya, Aichi, Japan, 4668650
- Nagoya Daini Red Cross Hospital
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Hokkaido
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Hakodate, Hokkaido, Japan, 0418512
- National Hospital Organization Hakodate National Hospital
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Sapporo, Hokkaido, Japan, 0030804
- National Hospital Organization Hokkaido Cancer Center
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Hukuoka
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Kurume, Hukuoka, Japan, 8300011
- Kurume University Hospital
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Hyogo
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Kobe, Hyogo, Japan, 6500017
- Kobe University Hospital
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Kobe, Hyogo, Japan, 6500046
- Kobe City General Hospital
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Iwate
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Morioka, Iwate, Japan, 0208505
- Iwate Medical University Hospital
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Kanagawa
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Isehara, Kanagawa, Japan, 2591193
- Tokai University Hospital
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Mie
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Tsu, Mie, Japan, 5148507
- Mie University Hospital
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Osaka
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Suita, Osaka, Japan, 5658565
- National Cardiovascular Center
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Tokyo
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Fuchu, Tokyo, Japan, 1830003
- Sakakibara Memorial Hospital
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Yamaguchi
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Iwakuni, Yamaguchi, Japan, 7408510
- National Hospital Organization Iwakuni Clinical Center
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Ube, Yamaguchi, Japan, 7558505
- Yamaguchi University Hospital
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
20 years to 80 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Males of non-pregnant females >=20 and <=80 years of age
Those with the diagnosis of HIT or HITTS made by the following diagnostic criteria, or those who have positive results of HIT antibody
- diagnostic criteria of HIT
- a fall in platelet count to less than 100,000/μL or a 50% decrease in platelets after the initiation of heparin therapy with no apparent explanation other than HIT
diagnostic criteria of HITTS
- those who met the diagnosis criteria of HIT
- presence of an arterial or venous thrombosis documented by appropriate imaging technique (ultrasound, angiography etc.) or supported by clinical evidence such as a myocardial infarction, stroke, pulmonary embolism, or other clinical indications of vascular occlusion(absence of pulse, cold, cyanotic extremities, etc.)
- patients with history of HIT/HITTS with positive test results (HIT antibody or platelet function test) could be enrolled without present thrombocytopenia
- patients willing and able to give informed consent
Exclusion Criteria:
- any condition which in the investigator's opinion, contraindicated the use of argatroban or endangered the patient if he or she participated in this trial
- clinically significant or uncontrolled endocrine, renal, pulmonary, gastrointestinal, or psychiatric disorder of sufficient severity that the investigator deemed antithrombotic therapy with argatroban to be contraindicated
- unexplained aPTT>200% of control at baseline
- documented coagulation disorder or unexplained bleeding diathesis unrelated to HIT
- lumbar puncture within the past 7 days
- known clinical site of bleeding. Patients with a known site of clinical bleeding could be enrolled if the investigator deemed the risk of continued thrombosis outweighed the potential bleeding risk
- serious liver disfunction
- females of known or suspected pregnancy
- breast feeding females
- participation in other clinical drug trials within the past 30 days
- history of hypersensitivity to argatroban
- concomitant use of cimetidine
- previous participation in this trial
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
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Death, new thrombosis, amputation
Time Frame: till 37 days
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till 37 days
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Secondary Outcome Measures
Outcome Measure |
Time Frame |
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Achievement of anticoagulation therapy
Time Frame: till 37 days
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till 37 days
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Improvement of thrombocytopenia
Time Frame: till 37 days
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till 37 days
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Collaborators
Investigators
- Study Chair: Hitonobu TOMOIKE, MD, PhD, National Cerebral and Cardiovascular Center
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
June 1, 2005
Primary Completion (Actual)
July 1, 2006
Study Completion (Actual)
September 1, 2006
Study Registration Dates
First Submitted
September 12, 2005
First Submitted That Met QC Criteria
September 12, 2005
First Posted (Estimate)
September 20, 2005
Study Record Updates
Last Update Posted (Estimate)
November 13, 2008
Last Update Submitted That Met QC Criteria
November 11, 2008
Last Verified
November 1, 2008
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- ARG-HIT-CVD
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.
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Central Hospital, Nancy, FranceRecruitingHeparin-induced ThrombocytopeniaFrance
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University of ArizonaAmerican College of Clinical PharmacyRecruitingHeparin-induced ThrombocytopeniaUnited States
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Vanderbilt University Medical CenterAmerican Heart AssociationCompletedHeparin-induced ThrombocytopeniaUnited States
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Central Hospital, Nancy, FranceCompletedHeparin-induced Thrombocytopenia
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HealthCore-NERINational Heart, Lung, and Blood Institute (NHLBI)CompletedHeparin Induced ThrombocytopeniaUnited States
Clinical Trials on argatroban
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Andrew D. Barreto, MDThe University of Texas Health Science Center, HoustonTerminatedIschemic StrokeUnited States
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The University of Texas Health Science Center,...Completed
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Mitsubishi Tanabe Pharma CorporationCompletedHeparin-induced Thrombocytopenia Type IIFrance
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University Hospital OstravaCompleted
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Massachusetts General HospitalGlaxoSmithKlineTerminatedCoronary Artery Bypass Graft Surgery | Presence of Heparin/Platelet Factor 4 AntibodyUnited States
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General Hospital of Shenyang Military RegionCompletedStroke, IschemicChina
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Canyon Pharmaceuticals, Inc.TerminatedSuspected Heparin-Induced ThrombocytopeniaUnited States
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Hui-Sheng ChenTerminated
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Methodist HealthcareUniversity of TennesseeWithdrawnHeparin-Induced Thrombocytopenia
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Universitaire Ziekenhuizen KU LeuvenCompletedStaphylococcus Aureus BacteraemiaBelgium