This study will assess the safety, tolerability, pharmacodynamics, and pharmacokinetics of single doses of odanacatib in mature adolescents and young adults who are currently receiving glucocorticoid therapy. The primary hypotheses for the study are that a single dose of odanacatib is well tolerated in mature adolescents and following single dose administration of odanacatib 50 mg, there is no clinically important difference in AUC0-inf between mature adolescents and young adults.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Enrollment
19
single oral dose, tablets, 10 or 50 mg
single oral dose, tablets
Number of Participants Who Report an Adverse Event (AE)
An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study.
Time frame: Up to Day 14
Area Under the Plasma-Drug Concentration Time Curve From Hour 0 to Infinity (AUC0-inf) For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 50 mg
Area Under the Plasma-Drug Concentration/Time Curve from Time 0 to infinity (AUC0-inf) is a measure of the total amount of drug in the plasma from the dose administration to the last measurable sample. The Method of Dispersion is more accurately described as "Percent Geometric Coefficient of Variation". Pharmacokinetic (PK) analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
Area Under the Plasma-Drug Concentration Time Curve From Hour 0 to 168 Hours (AUC0-168) For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 50 mg
Area Under the Plasma-Drug Concentration/Time Curve from Time 0 to Hour 168 (AUC0-168) is a measure of the total amount of drug in the plasma from the dose administration to the Hour 168 sample. The Method of Dispersion is more accurately described as "Percent Geometric Coefficient of Variation". PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, and 168 hours post-dose
Maximum Plasma Concentration (Cmax) of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 50 mg
Cmax is a measure of the maximum amount of drug in the plasma after the drug dose is given. The Method of Dispersion is more accurately described as "Percent Geometric Coefficient of Variation". PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
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Time to Cmax (Tmax) of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 50 mg
Tmax is the time required to reach Cmax. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
Apparent Terminal Half-life (t1/2) of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 50 mg
T1/2 is the time required for a given drug concentration in the plasma to decrease by 50%. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
AUC0-inf for Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 10 mg
Area Under the Plasma Concentration/Time Curve from Time 0 to infinity (AUC0-inf) is a measure of the total amount of drug in the plasma from the dose administration to the last measurable sample. The AUC0-inf data for 10 mg odanacatib in adolescents were compared with the historical young adult odanacatib 10 mg AUC0-inf data from study MK-0822-007. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
AUC0-168 for Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 10 mg
Area Under the Plasma Concentration/Time Curve from Time 0 to Hour 168 (AUC0-168) is a measure of the total amount of drug in the plasma from the dose administration to the Hour 168 sample. The AUC0-168 data for 10 mg odanacatib in adolescents were compared with the historical young adult odanacatib 10 mg AUC0-168 data from study MK-0822-007. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, and 168 hours post-dose
Cmax of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 10 mg
Cmax is a measure of the maximum amount of drug in the plasma after the dose is given. The Cmax data for 10 mg odanacatib in adolescents were compared with the historical young adult odanacatib 10 mg Cmax data from study MK-0822-007. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
Tmax of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 10 mg
Tmax is the time required to reach Cmax. The Tmax data for 10 mg odanacatib in adolescents were compared with the historical young adult odanacatib 10 mg Tmax data from study MK-0822-007. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
Apparent Terminal t1/2 of Odanacatib For Adolescents and Young Adults Following a Single Oral Dose of Odanacatib 10 mg
Apparent terminal t1/2 is the time required for a given drug concentration in the plasma to decrease by 50%. The apparent terminal t1/2 data for 10 mg odanacatib in adolescents were compared with the historical young adult odanacatib 10 mg apparent terminal t1/2 data from study MK-0822-007. PK analysis was not performed on participants receiving placebo.
Time frame: Hour 0 (predose), and at 1, 2, 6, 8, 12, 24, 72, 96, 120, 168, 240, and 336 hours post-dose
Change From Baseline in Urinary Aminoterminal Crosslinked Telopeptide of Type 1 Collagen (uNTx/Cr) at 168 Hours Postdose
Urinary aminoterminal crosslinked telopeptide of Type I collagen (uNTx/Cr) is a biochemical marker of bone resorption. Odanacatib selectively and potently inhibits cathepsin K (CatK), the primary catalyst of bone resorption. Since CatK is the enzyme responsible for bone matrix degradation it is possible to use bone resorption biomarkers to quantify pharmacodynamic effects in short term clinical studies. CatK cleaves the N-telopeptide of collagen type I to form NTx and also cleaves the serum C-terminal telopeptide of collagen type I (1-CTP - itself generated by the action of matrix metalloproteases) to generate CTx. Urine NTx measurements (in bone collagen equivalents \[BCE\]) have been normalized to creatinine clearance.
Time frame: Baseline (predose Day 1) and 168 hours postdose