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Sitagliptin/Metformin Fed Bioequivalence Study (0431A-080)

An Open-Label, Randomized, Two-Period Crossover Definitive Bioequivalence Study With the Final Marketed Image (FMI) Sitagliptin/Metformin Fixed-Dose Combination (FDC) Tablet and Co-Administration of the Sitagliptin and Metformin Individual Tablets After Consumption of a High-Fat Meal in Healthy Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00929201
Enrollment
61
Registered
2009-06-26
Start date
2008-01-31
Completion date
2008-05-31
Last updated
2015-08-13

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

Conditions

Type 2 Diabetes Mellitus

Brief summary

This study will demonstrate the bioequivalence of metformin after single dose administration of sitagliptin/metformin 50/500 mg fixed dose combination (FDC) tablet and concomitant administration of single doses of sitagliptin 50 mg and metformin 500 mg as individual tablets after consumption of a high-fat meal.

Interventions

DRUGSitagliptin phosphate/metformin hydrochloride FDC

Single dose sitagliptin/metformin 50/500 mg FDC tablet after consumption of a high-fat meal in one of two treatment periods.

DRUGSitagliptin phosphate

Single dose sitagliptin 50 mg tablet after consumption of a high-fat meal in one of two treatment periods.

DRUGMetformin hydrochloride

Single dose metformin 500 mg tablet after consumption of a high-fat meal 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 45 Years
Healthy volunteers
Yes

Inclusion criteria

* is in good health * is a nonsmoker * is willing to follow all study guidelines

Exclusion criteria

* has or has a history of any illness or condition that might confound the results of the study or make participation unsafe for the participant * is a nursing mother * is unwilling to consume the required high-fat breakfast

Design outcomes

Primary

MeasureTime frameDescription
Plasma Area Under the Curve (AUC(0 to Infinity)) for MetforminPredose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 32, 48, and 72 hours postdoseSerum samples were used to determine the AUC from time 0 to infinity for metformin.

Secondary

MeasureTime frameDescription
Peak Plasma Concentration (Cmax) of MetforminPredose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 32, 48, and 72 hours postdoseSerum samples were used to determine the maximum concentration for metformin.

Participant flow

Participants by arm

ArmCount
All Participants
All randomized participants
61
Total61

Withdrawals & dropouts

PeriodReasonFG000FG001
Period 1Withdrawal by Subject01

Baseline characteristics

CharacteristicAll Participants
Age, Continuous32.4 Years
Height164.9 Centimeters
Sex: Female, Male
Female
32 Participants
Sex: Female, Male
Male
29 Participants
Weight73.0 Kilograms

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
2 / 606 / 61
serious
Total, serious adverse events
0 / 600 / 61

Outcome results

Primary

Plasma Area Under the Curve (AUC(0 to Infinity)) for Metformin

Serum samples were used to determine the AUC from time 0 to infinity for metformin.

Time frame: Predose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 32, 48, and 72 hours postdose

Population: All participants who completed and who had pharmacokinetic data available from at least one treatment period

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Sita + MetPlasma Area Under the Curve (AUC(0 to Infinity)) for Metformin7.65 μg * hr/mLStandard Deviation 1.39
Sita/Met FDCPlasma Area Under the Curve (AUC(0 to Infinity)) for Metformin7.45 μg * hr/mLStandard Deviation 1.48
Comparison: Least-Squares Mean Ratio calculated as Sitagliptin/Metformin 50/500 mg FDC tablet divided by Sitagliptin 50 mg and metformin 500 mg individual tablets90% CI: [0.95, 1]
Secondary

Peak Plasma Concentration (Cmax) of Metformin

Serum samples were used to determine the maximum concentration for metformin.

Time frame: Predose and 0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 5, 6, 8, 10, 12, 16, 24, 32, 48, and 72 hours postdose

Population: All participants who completed and who had pharmacokinetic data available from at least one treatment period

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
Sita + MetPeak Plasma Concentration (Cmax) of Metformin929 ng/mLStandard Deviation 181
Sita/Met FDCPeak Plasma Concentration (Cmax) of Metformin887 ng/mLStandard Deviation 187
Comparison: Least-Squares Mean Ratio calculated as Sitagliptin/Metformin 50/500 mg FDC tablet divided by Sitagliptin 50 mg and metformin 500 mg individual tablets90% CI: [0.93, 0.98]

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