This is an open-label, extension study enrolling patients who have successfully completed all assessments in Study CT-AMT-060-01 (Years 1-5). Assessment phase will begin at Visit 36 (the first clinical visit in this extension study, approximately 5.5 years after the initial dosing visit Study CT-AMT-060-01) and go to Visit 45 (10-years post-dosing in Study CT-AMT-060-01).
Study Type
OBSERVATIONAL
Enrollment
9
AAV5 containing a codon-optimized human factor IX gene
Vivantes Klinikum im Friedrichshain
Berlin, Germany
Universitaetsklinikum Frankfurt - Klinikum der Johann Wolfgang Goethe Universitae
Frankfurt, Germany
Amsterdam UMC - Locatie AMC
Amsterdam, Netherlands
Groningen UMC
Groningen, Netherlands
Number of Adverse events Possibly or probably related to previous AAV5-hFIX administration
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Neutralizing FIX antibodies (FIX inhibitors)
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
ALT/AST levels
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Liver pathology score Assessed by ultrasound every 6 months
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Alfa fetoprotein levels
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Endogenous Percent FIX activity
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Total Consumption of FIX Replacement Therapy on-demand and prophylactic
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Annualized bleeding rate Including all bleeds (treated and untreated), spontaneous bleeds, traumatic bleeds and joint bleeds
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Number of Procedures (including major and minor surgeries)
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Quality of Life questionnaire SF-36 score
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
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Erasmus MC
Rotterdam, Netherlands
Universitair Medisch Centrum Utrecht
Utrecht, Netherlands
Quality of Life questionnaire EQ-5D-5L score
Time frame: 6-10 years after dosing in CT-AMT-060-01 study
Hemophilia Joint Health Score
Time frame: 6-10 years after dosing in CT-AMT-060-01 study