The objectives of the studies are: * To demonstrate similar total exposure between pramipexole ER fasted and pramipexole ER fed after multiple administration of the highest daily dose of 4.5 mg q.d. and to reveal any food effect leading to uncontrolled release * To investigate the relative bioavailability of the ER-formulation of pramipexole in comparison to the IR-formulation at the highest daily dose of 4.5 mg after multiple dosing * To demonstrate dose proportionality between the dose strengths of the pramipexole ER formulation of 0.375, 0.75, 1.5, 3.0, and 4.5 mg after multiple daily (q.d.) dosing
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
39
Area under the concentration-time curve of the analyte in plasma at steady state over a uniform dosing interval τ=0-24h (AUC0-24,ss) for ER
Time frame: up to 23 hours after drug application on day 5
AUC0-24,ss for IR
Time frame: up to 23 hours after drug application on day 5
Maximum measured concentration of the analyte in plasma at steady state (Cmax)
Time frame: up to 23 hours after drug application on day 5
Area under the concentration-time curve of the analyte in plasma over the time interval 0 to 4h at steady state (AUC0-4,ss) for ER
Time frame: up to 4 hours after drug application
Minimum measured concentration of the analyte in plasma at steady state over a uniform dosing interval τ (Cmin,ss)
Time frame: up to 23 hours after drug application on day 5
Peak-Trough Fluctuation (PTF)
Time frame: up to 23 hours after drug application on day 5
Time from last dosing to the maximum concentration of the analyte in plasma at steady state over a uniform dosing interval τ (tmax,ss)
Time frame: up to 23 hours after drug application on day 5
Area under the concentration-time curve of the analyte in plasma over the time interval 0 to 8 h at steady state (AUC0-8,ss)
Time frame: up to 8 hours after drug application
Predose concentration of the analyte in plasma at steady state immediately before administration of the next dose (Cpre,ss)
Time frame: predose on days 1 to 5
Average concentration of the analyte in plasma at steady state (Cavg)
Time frame: up to 23 hours after drug application on day 5
Terminal half-life of the analyte in plasma at steady state (t1/2,ss)
Time frame: up to 23 hours after drug application on day 5
Mean residence time of the analyte in the body at steady state after p.o. administration (MRTpo,ss)
Time frame: up to 23 hours after drug application on day 5
Apparent clearance of the analyte in plasma at steady state after extravascular multiple dose administration (CL/F,ss)
Time frame: up to 23 hours after drug application on day 5
Renal clearance of the analyte at steady state determined over the dosing interval τ (CLR,ss)
Time frame: up to 23 hours after drug application on day 5
Apparent volume of distribution during the terminal phase λz at steady state following extravascular administration (Vz/F,ss)
Time frame: up to 23 hours after drug application on day 5
Amount of analyte that is eliminated in urine at steady state from the time point 0 to time point 24 (Ae0-24,ss)
Time frame: up to 23 hours after drug application on day 5
Amount of analyte that is eliminated in urine at steady state from the time point 0 to time point 8 (Ae0-8,ss) for IR
Time frame: up to 8 hours after drug application on day 5
Number of subjects with adverse events
Time frame: up to 7 days after last drug administration
Number of subjects with clinically relevant changes in vital signs
Time frame: up to 7 days after last drug administration
Number of subjects with clinically relevant changes in laboratory parameters
Time frame: up to 7 days after last drug administration
Assessment of global tolerability by investigator on a 4-point scale
Time frame: day 5 of each visit
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