Safety, Tolerability, and Pharmacokinetics (PK) of CTP-499
A Randomized, Double-blind, Placebo-controlled, Single-ascending-dose, Safety, Tolerability, Pharmacokinetics, and Relative Bioavailability Study of CTP-499 in Healthy Adults
The purpose of this study is to assess the safety, tolerability and pharmacokinetics of CTP-499 following single dose administration.
This is a double-blind, single ascending dose administration study of four doses of CTP-499. Following dosing safety and tolerability will be assessed. Blood and urine samples will be taken for pharmacokinetics (PK) and bioavailability. Safety assessments will include monitoring of adverse events, vital signs (blood pressure, pulse rate, respiratory rate and oral temperature), clinical laboratory findings, 12-lead ECGs, and physical examination findings.
The plasma concentration time data for CTP-499 and its metabolites will be analyzed using noncompartmental methods. Actual dosing and sampling times will be used for analysis. The primary pharmacokinetics parameters are: Cmax, Tmax, T1/2, AUClast and AUCinf for plasma; relative bioavailability; and Ae and CLr for urine.
600 mg, 1200 mg, 1800 mg and 2400 mg
400 mg immediate release capsule
Single ascending dose administration of four doses of CTP-499 as tablets under fasting condition. 8 subjects per dose group will be enrolled with a 3:1 randomization of active drug to placebo. Dose levels: 600mg -> 1200mg -> 1800mg -> 2400mg
Part B will consist of a single 400 mg dose of an immediate release capsule of CTP-499 administered under fasting conditions. In Part B 6 subjects will be enrolled.
Inclusion Criteria: healthy volunteers ages 18 to 55 years old nonsmokers BMI of 18 to 30 kg/m2 Exclusion Criteria: Significant history of gastrointestinal, cardiovascular, musculoskeletal, endocrine, hematologic, psychiatric, renal, hepatic, bronchopulmonary, neurologic, immunologic, lipid metabolism disorders of drug hypersensitivity Systolic Blood pressure < 90 or > 140, diastolic bp > 90