Assessment of Pharmacokinetics of Single Dose Odanacatib (MK-0822) in Participants With Moderate Hepatic Insufficiency (MK-0822-070)

Study Overview
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Brief Summary
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This open-label, non-randomized study was designed to compare pharmacokinetics of a single 50 milligram (mg) dose of MK-0822 in participants with and without moderate hepatic insufficiency (abnormal liver function) in order to determine to what degree hepatic dysfunction may impact therapeutic blood levels of MK-0822. The primary hypothesis is that plasma AUC0-∞ of odanacatib in participants with moderate hepatic insufficiency is similar to that in matched healthy participants following a single 50 mg oral dose.

Official Title
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Single Dose Study to Investigate the Pharmacokinetics of Odanacatib (MK-0822) in Subjects With Hepatic Insufficiency

Conditions
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Hepatic Insufficiency

Intervention / Treatment
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* Drug: MK-0822


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Not currently pregnant, nursing or planning to be pregnant through-out the course of the study; agree to use specified contraception per protocol requirement Body Mass Index (BMI) of ≤ 39 kg/m^2 (not obese) Judged to be in good health (for healthy participant population) Non-smoker for the past 6-months; social smokers (smoke less than 10 cigarettes within the past 3 months; or per discretion of the study Investigator, quit smoking within the past 3 months. Diagnosed with chronic (more than 6 months), stable (no acute episodes of illness within the previous 2 months) hepatic insufficiency (liver dysfunction) with features of cirrhosis due to any cause (for the moderate hepatic insufficiency participant population) Possess the ability to understand the study, grant voluntary informed consent and willingly comply with all study requirements Exclusion Criteria: Does not meet the age requirement, is mentally or legally incapacitated, has or is expected to have significant emotional problems, or a history of a clinically significant psychiatric disorder Has been diagnosed with a disease or medical condition which may pose a risk to the participant or may confound the study results Compromised renal (kidney) function, significant organ system disease(s) or cancer(s) Unable to refrain from or anticipates the use of any new medication, including prescription and non-prescription drugs or herbal remedies Meets the requirements of the study in regard to current medication profile including: prescribed medications, caffeine, alcohol, over-the-counter drugs, herbals and nutritional products; with expected non-use of recreational (illicit) drugs associated with misuse, abuse and/or addiction Had surgery, donated 1 unit of blood or received another investigational study medication within 4 weeks prior to the study's first dose of investigational product History of multiple and/or severe allergies, or has had a life-threatening reaction or inability to tolerate prescription or non-prescription drugs or food

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 70 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Moderate Hepatic Insufficiency Group<br>Single-dose administration of odanacatib 50 mg to participants with moderate hepatic insufficiency. | Drug: MK-0822<br>* A single oral dose (50 mg tablet) of MK 0822 will be administered on Day 1 after an overnight fast.<br>* Other names: odanacatib;|
| Experimental: Healthy Matched Control Group<br>Single-dose administration of odanacatib 50 mg to healthy matched control participants. | Drug: MK-0822<br>* A single oral dose (50 mg tablet) of MK 0822 will be administered on Day 1 after an overnight fast.<br>* Other names: odanacatib;|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Concentration-time Curve of MK-0822 From Time 0 to Infinity (AUC0-∞) After Single Dose | For healthy and moderate hepatic insufficiency participants, plasma samples were collected from predose to 336 hours postdose for determination of AUC0-∞ (Total AUC). AUC0-∞ is a measure of total drug exposure. | Pre-dose and 1, 2, 4, 6, 9, 12, 16, 24, 32, 48, 72, 96, 120, 168, 240, and 336 hours postdose | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum Concentration (Cmax) of MK-0822 After Single Dose | For healthy and moderate hepatic insufficiency participants, plasma samples were collected from predose to 336 hours postdose for determination of Cmax. | Pre-dose and 1, 2, 4, 6, 9, 12, 16, 24, 32, 48, 72, 96, 120, 168, 240, and 336 hours postdose | 
| Time to Maximum Concentration (Tmax) of MK-0822 After Single Dose | For healthy and moderate hepatic insufficiency participants, plasma samples were collected from predose to 336 hours postdose for determination of Tmax. | Pre-dose and 1, 2, 4, 6, 9, 12, 16, 24, 32, 48, 72, 96, 120, 168, 240, and 336 hours postdose | 
| Apparent Terminal Half-life (t1/2) of MK-0822 After Single Dose | Apparent terminal half-life is the time required to divide the plasma (serum) concentration by two after reaching pseudo-equilibrium. (Note: it is not the time required to eliminate half the administered dose.) For healthy and moderate hepatic insufficiency participants, plasma samples were collected from predose to 336 hours postdose for determination of t1/2. Results are presented using harmonic mean and jackknife standard deviation. | Pre-dose and 1, 2, 4, 6, 9, 12, 16, 24, 32, 48, 72, 96, 120, 168, 240, and 336 hours postdose |