Pharmacokinetic Interaction Between SSP-004184 (SPD602) and Midazolam in Healthy Adult Subjects

Area Under the Plasma Concentration-time Curve (AUC) From Time Zero to Infinity (AUCinf) of Midazolam

AUCinf is the area under the plasma concentration versus time curve extrapolated from time 0 to infinity, calculated using the observed value of the last non-zero concentration. AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.

Time frame: Study Periods 1 & 2: Within 60 minutes pre-dose, and Post-dose 0.167, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, 48, 72 hours.

Area Under the Concentration-time Curve From Time Zero to the Time of the Last Measureable Concentration (AUClast) of Midazolam

AUClast is the area under the concentration versus time curve from the time of dosing to the last measurable concentration. AUC can be used as a measure of drug exposure. It is derived from drug concentration and time so it gives a measure how much and how long a drug stays in a body.

Time frame: Study Periods 1 & 2: Within 60 minutes pre-dose, and Post-dose 0.167, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, 48, 72 hours.

Maximum Plasma Concentration (Cmax) of Midazolam

Cmax is a term that refers to the maximum (or peak) concentration that a drug achieves in the body after the drug has been administrated.

Time frame: Study Periods 1 & 2: Within 60 minutes pre-dose, and Post-dose 0.167, 0.33, 0.5, 0.75, 1, 1.5, 2, 2.5, 3, 4, 5, 6, 8, 10, 12, 24, 48, 72 hours.