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A Study of KW-3357 in Congenital Antithrombin Deficiency

Phase 1
Completed
Conditions
Congenital Antithrombin Deficiency
Interventions
Registration Number
NCT00938288
Lead Sponsor
Kyowa Kirin Co., Ltd.
Brief Summary

The aim of this study is to determine the pharmacokinetics, safety and tolerability of KW-3357 in asymptomatic subjects with congenital antithrombin deficiency.

Detailed Description

Patients with Congenital Antithrombin Deficiency are at increased risk of venous thrombosis and pulmonary embolism especially when undergoing certain high risk procedures. Antithrombin replacement therapy is often administered during these periods, with or without low molecular weight heparin. Prior to assessing the efficacy of KW-3357, a new recombinant human antithrombin, the present study will determine it's pharmacokinetics, safety and tolerability in subjects who have Congenital Antithrombin Deficiency but who are currently asymptomatic and not undergoing a high-risk procedure. Up to 16 evaluable subjects will be enrolled at multiple investigational sites over a period of approximately 7 months.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
16
Inclusion Criteria
  • Male or female subjects at least 18 years of age with congenital Antithrombin deficiency (AT activity ≀60% of normal) in a stable condition without evidence of acute thromboembolic events
  • Signed IEC-approved Informed Consent Form
  • Subjects must not have received an infusion of Antithrombin for at least 14 days before Screening
  • Patients of reproductive potential must agree to follow accepted birth control methods during the study
Exclusion Criteria
  • Subjects who are classified as morbidly obese (defined by the presence of a body mass index >40 kg/m2)
  • Subjects who have participated in a study with an investigational drug within 30 days of Screening or within 5.5 times the elimination half-life of the investigational drug before Screening, whichever period is greater
  • Subjects with any clinically relevant medical history or current condition or physical findings, ECG, or laboratory values which could interfere with the objectives of the study or the safety of the subject
  • Subjects using non-steroidal anti-inflammatories, fondaparinux sodium, dabigatran or rivaroxaban or who are expected to be treated with these drugs during the study
  • Subjects who have concomitant nephrotic syndrome
  • Female subjects who are pregnant or lactating
  • Subjects who are taking heparin, low molecular weight heparin and/or oral anticoagulants, with the exception of vitamin K antagonists (eg, warfarin)

Study & Design

Study Type
INTERVENTIONAL
Study Design
SINGLE_GROUP
Arm && Interventions
GroupInterventionDescription
1KW-3357Single group
Primary Outcome Measures
NameTimeMethod
To evaluate the pharmacokinetic profile of a single dose (50 IU/kg) of KW 3357 in subjects with congenital AT deficiencyJuly 2011
Secondary Outcome Measures
NameTimeMethod
To determine the safety and tolerability of a single dose (50 IU/kg) of KW-3357 in subjects with congenital AT deficiencyJuly 2011

Trial Locations

Locations (8)

Department of Haemotogy, Haemastasy, Oncology and Stem Cell Transplantation, Hannover Medical School

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Hannover, Germany

Center for Thrombosis and Haemostasis, Malmo University Hospital

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MalmΓΆ, Sweden

Dept Obst Gyn/Section for Women and Child Health/Clinical Trial Unit, Karolinska University Hospital

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Stockholm, Sweden

Treliske, Haematology Clinic, Royal Cornwall Hospital

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Truro, Cornwall, United Kingdom

Bristol Haemophia Care Centre, Bristol Haemotology and Oncology Centre

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Bristol, United Kingdom

Department of Haemotology, Glasgow Royal Infirmary

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Glasgow, United Kingdom

Kings College, Dept of Haematology, Lupus & Pathology Guy's and St Thomas Trust, St Thomas Hospital, Ctr for Haemostasis and Thrombosis (the Haemophia Reference Ctr)

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London, United Kingdom

University College London Hospital NHS Trust

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London, United Kingdom

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