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A Study to Assess the Bioequivalence of Aprepitant and Fosaprepitant and the Effect of Food on Aprepitant Bioavailability (0869-165)

A Single-Dose Bioequivalence and Food Effect Study With Aprepitant and Fosaprepitant Dimeglumine in Healthy Young Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00945321
Enrollment
42
Registered
2009-07-24
Start date
2009-02-28
Completion date
2009-03-31
Last updated
2015-01-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chemotherapy-Induced Nausea and Vomiting

Brief summary

This study will assess the bioequivalence of single oral doses of aprepitant (MK0869) to a single intravenous infusion of fosaprepitant (MK0517) and also determine the effect of food on the bioavailability of oral aprepitant.

Interventions

Single dose of aprepitant 165 mg tablet in the fasted state during treatment period 1,2, or 3.

DRUGComparator: aprepitant 185 mg

Single dose of aprepitant 185 mg tablet in the fasted state during treatment period 1, 2, or 3.

DRUGComparator: fosaprepitant 150 mg

Single dose of fosaprepitant 150 mg intravenous infusion in the fasted state during treatment period 1,2, or 3.

DRUGComparator: aprepitant with food

Single dose of aprepitant 165 mg or 185 mg tablet in the fed state during treatment period 4.

Sponsors

Merck Sharp & Dohme LLC
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* Subject is in good health * Subject is a nonsmoker * Subject is willing to comply with the study restrictions

Exclusion criteria

* Subject has a history of any illness that might confound the results of the study or might make participation in the study unsafe * Subject has a history of stroke, seizures, or major neurological disorder * Subject has a history of cancer * Subject consumes more than two alcoholic drinks per day * Subject consumes more than three caffeinated beverages daily

Design outcomes

Primary

MeasureTime frame
Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mgThrough 72 Hours Postdose
Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.Through 72 Hours Postdose

Participant flow

Participants by arm

ArmCount
All Participants
All randomized patients.
42
Total42

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Period 1Adverse Event000010
Period 4Lost to Follow-up000001

Baseline characteristics

CharacteristicAll Participants
Age, Continuous27.8 years
Height172.9 Centimeters
Sex: Female, Male
Female
10 Participants
Sex: Female, Male
Male
32 Participants
Weight74.2 Kilograms

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —
other
Total, other adverse events
12 / 4113 / 4215 / 416 / 213 / 20
serious
Total, serious adverse events
0 / 411 / 420 / 410 / 210 / 20

Outcome results

Primary

Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg

Time frame: Through 72 Hours Postdose

Population: All subjects excluding one subject who dropped from the study after Period 1 due to accidental overdose were included in the pharmacokinetic (PK) analysis.

ArmMeasureValue (MEAN)Dispersion
165 mg Aprepitant (Fasted State)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg34589 ng•hr/mLStandard Deviation 39.7
185 mg Aprepitant (Fasted State)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg39053 ng•hr/mLStandard Deviation 37.5
150 mg Fosaprepitant Dimeglumine (Fasted State)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg37375 ng•hr/mLStandard Deviation 39.5
165 mg Aprepitant (Light)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg37795 ng•hr/mLStandard Deviation 48.4
165 mg Aprepitant (High-Fat)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg50172 ng•hr/mLStandard Deviation 22
185 mg Aprepitant (Light)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg51146 ng•hr/mLStandard Deviation 27.2
185 mg Aprepitant (High-Fat)Area Under the Curve (AUC(0 to Infinity)) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg60578 ng•hr/mLStandard Deviation 57.5
p-value: 0.00195% CI: [0.84, 1.02]two one-sided tests
p-value: <0.00195% CI: [0.96, 1.15]two one-sided tests
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [1.23, 1.76]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [0.88, 1.32]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [1.01, 1.46]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [1.16, 1.75]
Primary

Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.

Time frame: Through 72 Hours Postdose

Population: All subjects excluding one subject who dropped from the study after Period 1 due to accidental overdose were included in the pharmacokinetic (PK) analysis.

ArmMeasureValue (MEAN)Dispersion
165 mg Aprepitant (Fasted State)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.1738 ng/mLStandard Error 30.8
185 mg Aprepitant (Fasted State)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.1636 ng/mLStandard Error 31.2
150 mg Fosaprepitant Dimeglumine (Fasted State)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.1870 ng/mLStandard Error 33.3
165 mg Aprepitant (Light)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.2362 ng/mLStandard Error 38.5
165 mg Aprepitant (High-Fat)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.2116 ng/mLStandard Error 14.8
185 mg Aprepitant (Light)Peak Plasma Concentration (Cmax) Following Single Dose Administration of Aprepitant 165 mg or 185 mg and Fosaprepitant 150 mg.1995 ng/mLStandard Error 35.2
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [1.13, 1.56]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects95% CI: [0.86, 1.25]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [0.96, 1.34]
Comparison: The effect of a standard high-fat breakfast and a standard light breakfast on aprepitant plasma pharmacokinetics (AUC0-∞ and Cmax) following a single 165 mg oral dose of aprepitant and following a single 185 mg oral dose of aprepitant will be estimated in healthy young adult subjects90% CI: [1.16, 1.68]

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026