The purpose of this study is to evaluate how the pharmacokinetics of apremilast may be affected by a single intravenous dose of rifampin and multiple oral doses of rifampin.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
OTHER
Masking
NONE
Enrollment
21
Tablets for oral administration
Capsules for oral administration
Intravenous (IV) solution
Quintiles
Overland Park, Kansas, United States
Area Under the Plasma Concentration-time Curve From Time Zero to the Last Quantifiable Concentration (AUCt) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Area Under the Plasma Concentration-time Curve From Time Zero Extrapolated to Infinity (AUC∞) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Maximum Observed Plasma Concentration (Cmax) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Time to Maximum Observed Plasma Concentration (Tmax) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Estimate of the Terminal Elimination Half-life (T1/2) of Apremilast in Plasma
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
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Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Apparent Total Plasma Clearance (CL/F) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20
Apparent Volume of Distribution (Vz/F) of Apremilast
Plasma concentrations of apremilast were determined by means of a validated, sensitive, and specific high performance liquid chromatography/tandem mass spectrometric (LC-MS/MS) assay.
Time frame: Pre-dose and at 0.5, 1, 1.5, 2, 3, 5, 8, 12, 16, 24, 36, and 48 hours following apremilast dosing on Days 1, 5, and 20