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Bioequivalence Study of Torrent Pharmaceutical Ltd.'s Zolpidem Tartrate Tablets Under Fed Conditions

Randomized, Two Period Crossover Studies in Fed Healthy, Normal Subjects to Compare the Single Dose Bioavailability of Torrent's Zolpidem Tartrate Tablets 10 mg and Sanofi-Synthelabo's Ambien® 10 mg Tablets

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00939367
Enrollment
50
Registered
2009-07-15
Start date
2007-02-24
Completion date
2007-05-02
Last updated
2018-06-28

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

Conditions

Healthy

Brief summary

Subjects to compare the single dose bioavailability of Torrent's Zolpidem Tartrate Tablets 10mg and Ambien® Tablets 10 mg of Sanofi-Synthelabo Inc.

Detailed description

An Open Label, Randomized, 2-period, 2- Treatment, 2-Sequence, Crossover, Single-dose Bioequivalence Study of Zolpidem Tartrate Tablets containing Zolpidem Tartrate 10 mg ( Test Formulation, Torrent Pharmaceutical Ltd., India) Versus Ambien® Tablets 10 mg containing Zolpidem Tartrate 10 mg (Reference , Sanofi-Synthelabo Inc) in Healthy Human Volunteers Under Fed Condition.

Interventions

DRUG'Sanofi-Synthelabo Inc's Ambien® Tablets 10 mg

Sponsors

Torrent Pharmaceuticals Limited
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

* The subjects who qualify for the study should meet the following inclusion criteria. 1. Male and female subjects in the range of 18 - 45 years of age. 2. Subjects having Body Mass Index (BMI) in a range of 18.5 to 24.9. 3. Subjects with normal findings as determined by baseline history, physical examination and vital signs (blood pressure, pulse rate, respiration rate and body temperature) 4. Subjects with normal findings as determined by hematological tests, serum chemistry, urine analysis, ECG and X-ray. 5. Willingness to follow the protocol requirement as evidenced by written, informed consent. 6. Agreeing to, not using any medication prescription and over the counter medicines including vitamins and minerals for 14 days prior to study and during the course of the study. 7. No history or presence of significant alcoholism or drug abuse in the past one year. 8. Non-smokers, ex smokers and light smokers will be included. Light smokers are defined as someone smoking 10 cigarettes or less per day, ex smokers as someone who completely stopped smoking for at least 3 months.

Exclusion criteria

* The subjects who qualify for the study should not meet the following

Design outcomes

Primary

MeasureTime frameDescription
Maximum Plasma Concentration (Cmax)plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.The maximum or peak concentration that the drug reaches in the plasma
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.The area under the plasma concentration versus time curve, from time 0 to the time of the last measurable concentration (t)
The Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinity AUC(0-∞)plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.The area under the plasma concentration versus time curve from time 0 to infinity. AUC(0-∞) was calculated as the sum of AUC(0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant.

Countries

India

Participant flow

Pre-assignment details

healthy, normal subjects

Participants by arm

ArmCount
All Study Participants
Torrent's Zolpidem Tartrate Tablets 10 mg and Ambien® 10mg tablets
30
Total30

Baseline characteristics

CharacteristicAll Study Participants
Age, Categorical
<=18 years
0 Participants
Age, Categorical
>=65 years
0 Participants
Age, Categorical
Between 18 and 65 years
30 Participants
Age, Continuous27.6 years
STANDARD_DEVIATION 7.48
Region of Enrollment
India
30 participants
Sex: Female, Male
Female
11 Participants
Sex: Female, Male
Male
19 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
3 / 301 / 30
serious
Total, serious adverse events
0 / 300 / 30

Outcome results

Primary

Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]

The area under the plasma concentration versus time curve, from time 0 to the time of the last measurable concentration (t)

Time frame: plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.

ArmMeasureValue (MEAN)Dispersion
ExperimentalArea Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]734.29 ng.hr/mLStandard Deviation 416.53
Active ComparatorArea Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]705.45 ng.hr/mLStandard Deviation 356.65
Primary

Maximum Plasma Concentration (Cmax)

The maximum or peak concentration that the drug reaches in the plasma

Time frame: plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.

ArmMeasureValue (MEAN)Dispersion
ExperimentalMaximum Plasma Concentration (Cmax)130.58 ng/mLStandard Deviation 40.61
Active ComparatorMaximum Plasma Concentration (Cmax)124.53 ng/mLStandard Deviation 37.48
Primary

The Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinity AUC(0-∞)

The area under the plasma concentration versus time curve from time 0 to infinity. AUC(0-∞) was calculated as the sum of AUC(0-t) plus the ratio of the last measurable plasma concentration to the elimination rate constant.

Time frame: plasma samples were obtained from blood drawn at 0 (within 60 minutes prior to dose), 0.25, 0.5, 0.75, 1, 1.25, 1.5, 2, 2.5, 3, 4, 6, 8, 10, 12, 16, 20 and 24 hours (18 samples) after administration of the dose.

ArmMeasureValue (MEAN)Dispersion
ExperimentalThe Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinity AUC(0-∞)776.65 ng.hr/mLStandard Deviation 484.2
Active ComparatorThe Area Under the Plasma Concentration Versus Time Curve From Time 0 to Infinity AUC(0-∞)734.01 ng.hr/mLStandard Deviation 384.9

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