According to the ICH Guidance Document E14, all non-antiarrhythmic drugs should be evaluated for their ability to prolong the QT interval which represents the duration of ventricular depolarization and subsequent repolarization. The primary objective of the study is to assess the effect of anagrelide on QT/QTc interval following a therapeutic and supratherapeutic dose of anagrelide when compared to placebo and a positive control.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Enrollment
60
0.5mg Anagrelide single oral dose
2.5mg Anagrelide single oral dose
400 mg Moxifloxacin single oral dose
Biotrial
Rueil-Malmaison, France
Mean Difference Changes From Baseline Versus Placebo in QTcNi Intervals From Time-Matched Analysis by Largest Time Point
QT interval corrected for heart rate using the subject-specific method (QTcNi) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value. The largest time point refers to the estimated largest mean difference between each treatment and placebo among all time points. Values for different treatments can come from different time points.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in Heart Rate From Time-Matched Analysis by Largest Time Point
The largest time point refers to the estimated largest mean difference between each treatment and placebo among all time points. Values for different treatments can come from different time points.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QTcF Intervals From Time-Matched Analysis by Largest Time Point
QT interval corrected for heart rate using Fridericia's method (QTcF) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value. The largest time point refers to the estimated largest mean difference between each treatment and placebo among all time points. Values for different treatments can come from different time points.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QTcB Intervals From Time-Matched Analysis by Largest Time Point
QT interval corrected for heart rate using Bazett's method (QTcB) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value. The largest time point refers to the estimated largest mean difference between each treatment and placebo among all time points. Values for different treatments can come from different time points.
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Anagrelide placebo + Moxifloxacin placebo single oral dose
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QT Intervals From Time-Matched Analysis by Largest Time Point
The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value. The largest time point refers to the estimated largest mean difference between each treatment and placebo among all time points. Values for different treatments can come from different time points.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QTcNi Intervals at Subject-Specific Time of Maximum Plasma Concentration (Tmax)
QT interval corrected for heart rate using the subject-specific method (QTcNi) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in Heart Rate at Subject-Specific Tmax
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QTcF Intervals at Subject-Specific Tmax
QT interval corrected for heart rate using Fridericia's method (QTcF) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QTcB Intervals at Subject-Specific Tmax
QT interval corrected for heart rate using Bazett's method (QTcB) at the subject-specific time of maximum plasma concentration. The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value.
Time frame: Over 12 hours post-dose
Mean Difference Changes From Baseline Versus Placebo in QT Intervals at Subject-Specific Tmax
The QT interval is the time it takes for the ventricles of the heart to contract and relax. Data were subtracted from the placebo value.
Time frame: Over 12 hours post-dose
Maximum Plasma Concentration (Cmax) of 0.5 mg Anagrelide in Males and Females
Time frame: Over 12 hours post-dose
Maximum Plasma Concentration (Cmax) of 2.5 mg Anagrelide in Males and Females
Time frame: Over 12 hours post-dose
Maximum Plasma Concentration (Cmax) of Metabolite of 0.5 mg Anagrelide (BCH24426) in Males and Females
Time frame: Over 12 hours post-dose
Maximum Plasma Concentration (Cmax) of Metabolite of 2.5 mg Anagrelide (BCH24426) in Males and Females
Time frame: Over 12 hours post-dose