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Bioequivalence of Two Formulations of Ondansetron in Healthy Adults (0869-106)

An Open-Label, Randomized, Single-Dose, 2-Period Crossover Study to Determine the Bioequivalence of 2 Formulations of Ondansetron in Healthy Young Adult Male and Female Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00972595
Enrollment
45
Registered
2009-09-07
Start date
2004-06-30
Completion date
2004-09-30
Last updated
2015-08-19

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 a Merck clinical trial formulation of ondansetron compared to a non-U.S. marketed formulation of ondansetron.

Interventions

DRUGondansetron clinical trial formulation

Single dose of an over-encapsulated 8 mg tablet of United Kingdom (U.K.) ondansetron (ZOFRAN™) in one of two treatment periods.

DRUGondansetron marketed formulation

Single dose of an 8 mg tablet of U.K. ondansetron (ZOFRAN™) in one of two treatment periods.

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 55 Years
Healthy volunteers
Yes

Inclusion criteria

* If female, subject is not pregnant or breast-feeding * Subject has been a nonsmoker for at least 6 months * Subject is in good health

Exclusion criteria

* Subject has a history of high blood pressure, asthma, other pulmonary disease, Gastrointestinal (GI) abnormalities/peptic ulcers, or cardiovascular, liver, neurologic, or kidney disease * Subject is a habitual and heavy consumer of caffeine

Design outcomes

Primary

MeasureTime frame
Plasma Area Under The Concentration Versus Time Curve (AUC(0-infinity)) For Ondansetron0 (predose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 18, and 24 hours postdose
Peak Plasma Concentration (Cmax) for Ondansetron24 hours post-dose

Participant flow

Participants by arm

ArmCount
All Participants
All Randomized Participants
45
Total45

Withdrawals & dropouts

PeriodReasonFG000FG001
Period 1Adverse Event10

Baseline characteristics

CharacteristicAll Participants
Age, Continuous34 Years
Height170.8 Centimeters
Sex: Female, Male
Female
26 Participants
Sex: Female, Male
Male
19 Participants
Weight72.0 Killograms

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
13 / 456 / 44
serious
Total, serious adverse events
0 / 231 / 22

Outcome results

Primary

Peak Plasma Concentration (Cmax) for Ondansetron

Time frame: 24 hours post-dose

Population: All 44 of the subjects who completed both Treatment OE U.K. tablet and U.K. tablet were included in the statistical analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
OE U.K. TabletPeak Plasma Concentration (Cmax) for Ondansetron41.3 ng/mLStandard Deviation 13.7
U.K. TabletPeak Plasma Concentration (Cmax) for Ondansetron41.8 ng/mLStandard Deviation 13.6
Comparison: Least-Squares Mean Ratio (OE U.K. tablet / U.K. tablet): an over-encapsulated single 8 mg tablet of United Kingdom~(U.K.) ZOFRAN™ (ondansetron) taken orally; a single 8 mg tablet of ZOFRAN™ (ondansetron) which is marketed in the~United Kingdom (U.K.) taken orally90% CI: [0.93, 1.05]
Primary

Plasma Area Under The Concentration Versus Time Curve (AUC(0-infinity)) For Ondansetron

Time frame: 0 (predose), 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 18, and 24 hours postdose

Population: All 44 of the subjects who completed both Treatments OE U.K. tablet and U.K. tablet were included in the statistical analysis.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
OE U.K. TabletPlasma Area Under The Concentration Versus Time Curve (AUC(0-infinity)) For Ondansetron257.8 ng*hr/mLStandard Deviation 106.8
U.K. TabletPlasma Area Under The Concentration Versus Time Curve (AUC(0-infinity)) For Ondansetron262.6 ng*hr/mLStandard Deviation 105.6
Comparison: Least-Squares Mean Ratio (OE U.K. tablet / U.K. tablet): an over-encapsulated single 8 mg tablet of United Kingdom (U.K.) ZOFRAN™ (ondansetron) taken orally; a single 8 mg tablet of ZOFRAN™ (ondansetron) which is marketed in the United Kingdom (U.K.) taken orally90% CI: [0.93, 1.03]

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