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Losartan Potassium/Hydrochlorothiazide 100/25 mg Tablets in Healthy Subjects Under Fasting Conditions

A Relative Bioavailability Study of 100/25 mg Losartan Potassium/Hydrochlorothiazide Tablets Under Fasting Conditions

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01149486
Enrollment
20
Registered
2010-06-23
Start date
2004-01-31
Completion date
2004-02-29
Last updated
2010-12-08

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

Conditions

Healthy

Keywords

Bioequivalence, Healthy Subjects

Brief summary

The object of this study was to compare the relative bioavailability (rate and extent of absorption) of 100/25 mg Losartan potassium/Hydrochlorothiazide Tablets manufactured by Teva Pharmaceutical Industries Ltd. and distributed by Teva Pharmaceuticals USA with that of Hyzaar® 100/25 mg Tablets distributed by Merck & Co., Inc. following a single oral dose (1 x 100/25 mg tablet) in healthy adult subjects administered under fasting conditions.

Detailed description

Criteria for Evaluation: FDA Bioequivalence Criteria Statistical Methods: FDA Bioequivalence Statistical Methods

Interventions

100/25 mg Tablets

Sponsors

Teva Pharmaceuticals USA
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Masking
NONE

Eligibility

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

Inclusion criteria

* Healthy men and women, 18-45 years of age (inclusive). * Body mass index should be less than or equal to 30 * Screening procedures completed within 28 days prior to dosing. * If female and: * of child bearing potential, is practicing an acceptable barrier method of birth control for the duration of the study * is postmenopausal for at least 1 year * is surgically sterile (bilateral tubal ligation, bilateral oophorectomy, or hysterectomy)

Exclusion criteria

* Subjects with a recent history of drug or alcohol abuse or addiction. * Subjects with the presence of a clinically significant disorder involving the cardiovascular, respiratory, renal, gastrointestinal, immunologic, hematologic, endocrine, or neurologic system(s) or psychiatric disease (as determined by the clinical investigators). * Subjects whose clinical laboratory test values the accepted reference range and when confirmed on re-examination are deemed to be clinically significant. * Subjects demonstrating a positive hepatitis B surface antigen screen, a positive hepatitis C antibody screen, or a reactive HIV antibody screen. * Subjects demonstrating a positive drug abuse screen when screened for the study. * Female subjects demonstrating a positive pregnancy screen. * Female subjects who are currently breastfeeding. * Subjects who have used implanted or injected hormonal contraceptives anytime during the 180 days prior to study dosing or hormonal contraceptives within 14 days of dosing will not be allowed to participate. * Subjects with a history of allergic response(s) to losartan, hydrochlorothiazide or related drugs. * Subjects with a history of clinically significant allergies including drug allergies. * Subjects with a clinically significant illness during the 4 weeks prior to dosing (as determined by the clinical investigators). * Subjects who have taken any drug known to induce or inhibit hepatic drug metabolism in the 28 days prior to dosing. * Subjects who have used tobacco products within 90 days of Period 1 dose administration. * Subjects who report donating greater than 150 mL of blood within 14 days prior to dosing. * Subjects who report receiving any investigational drug within 28 days prior to dosing. * Subjects who report taking any systemic prescription medication in the 14 days prior to dosing. * Subjects who report an intolerance of direct venipuncture. * Subjects who report consuming an abnormal diet within the 28 days prior to dosing.

Design outcomes

Primary

MeasureTime frameDescription
AUC0-inf of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Infinity)Blood samples collected over a 48 hour period.Bioequivalence based on Hydrochlorothiazide AUC0-inf.
AUC0-inf of Losartan(Area Under the Concentration-time Curve From Time Zero to Infinity)Blood samples collected over a 48 hour period.Bioequivalence based on Losartan AUC0-inf.
Cmax of Hydroclorothiazide(Maximum Observed Concentration of Drug Substance in Plasma)Blood samples collected over a 48 hour period.Bioequivalence based on Hydrochlorothiazide Cmax.
AUC0-t of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)Blood samples collected over a 48 hour period.Bioequivalence based on Hydrochlorothiazide AUC0-t.
Cmax of Losartan(Maximum Observed Concentration of Drug Substance in Plasma)Blood samples collected over a 48 hour period.Bioequivalence based on Losartan Cmax.
AUC0-t of Losartan(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)Blood samples collected over a 48 hour period.Bioequivalence based on Losartan AUC0-t.

Secondary

MeasureTime frameDescription
AUC0-t of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)Blood samples collected over a 48 hour period.Informational comparison of AUC0-t values for the metabolite Losartan Carboxy Acid.
AUC0-inf of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Infinity)Blood samples collected over a 48 hour period.Informational comparison of AUC0-inf values for the metabolite Losartan Carboxy Acid.
Cmax of Losartan Carboxy Acid(Maximum Observed Concentration of Drug Substance in Plasma)Blood samples collected over a 48 hour period.Informational comparison of Cmax values for the metabolite Losartan Carboxy Acid.

Countries

United States

Participant flow

Participants by arm

ArmCount
Losartan/HCTZ (Test) First
100/25 mg Losartan potassium/Hydrochlorothiazide Tablets test product dosed in first period followed by 100/25 mg Hyzaar® Tablets reference product dosed in the second period.
10
Hyzaar® (Reference) First
100/25 mg Hyzaar® Tablets reference product dosed in first period followed by 100/25 mg Losartan potassium/Hydrochlorothiazide Tablets test product dosed in the second period.
10
Total20

Withdrawals & dropouts

PeriodReasonFG000FG001
First InterventionAdverse Event01

Baseline characteristics

CharacteristicLosartan/HCTZ (Test) FirstHyzaar® (Reference) FirstTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
10 Participants10 Participants20 Participants
Race/Ethnicity, Customized
American Indian
1 participants1 participants2 participants
Race/Ethnicity, Customized
Black
0 participants1 participants1 participants
Race/Ethnicity, Customized
Caucasian
9 participants8 participants17 participants
Region of Enrollment
United States
10 participants10 participants20 participants
Sex: Female, Male
Female
2 Participants1 Participants3 Participants
Sex: Female, Male
Male
8 Participants9 Participants17 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
3 / 206 / 20
serious
Total, serious adverse events
0 / 200 / 20

Outcome results

Primary

AUC0-inf of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Infinity)

Bioequivalence based on Hydrochlorothiazide AUC0-inf.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-inf of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Infinity)1087.64 ng*h/mLStandard Deviation 240.82
Hyzaar® (Reference)AUC0-inf of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Infinity)1030.73 ng*h/mLStandard Deviation 238.96
90% CI: [99.64, 111.82]
Primary

AUC0-inf of Losartan(Area Under the Concentration-time Curve From Time Zero to Infinity)

Bioequivalence based on Losartan AUC0-inf.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-inf of Losartan(Area Under the Concentration-time Curve From Time Zero to Infinity)880.15 ng*h/mLStandard Deviation 368.58
Hyzaar® (Reference)AUC0-inf of Losartan(Area Under the Concentration-time Curve From Time Zero to Infinity)877.99 ng*h/mLStandard Deviation 362.75
90% CI: [93.1, 106.12]
Primary

AUC0-t of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)

Bioequivalence based on Hydrochlorothiazide AUC0-t.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-t of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)1057.58 ng*h/mLStandard Deviation 231.26
Hyzaar® (Reference)AUC0-t of Hydrochlorothiazide(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)1001.54 ng*h/mLStandard Deviation 236
90% CI: [99.58, 112.41]
Primary

AUC0-t of Losartan(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)

Bioequivalence based on Losartan AUC0-t.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-t of Losartan(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)866.88 ng*h/mLStandard Deviation 366.15
Hyzaar® (Reference)AUC0-t of Losartan(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)865.00 ng*h/mLStandard Deviation 362.86
90% CI: [93.15, 106.18]
Primary

Cmax of Hydroclorothiazide(Maximum Observed Concentration of Drug Substance in Plasma)

Bioequivalence based on Hydrochlorothiazide Cmax.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)Cmax of Hydroclorothiazide(Maximum Observed Concentration of Drug Substance in Plasma)177.63 ng/mLStandard Deviation 48.09
Hyzaar® (Reference)Cmax of Hydroclorothiazide(Maximum Observed Concentration of Drug Substance in Plasma)161.56 ng/mLStandard Deviation 53.75
90% CI: [101.47, 122.79]
Primary

Cmax of Losartan(Maximum Observed Concentration of Drug Substance in Plasma)

Bioequivalence based on Losartan Cmax.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)Cmax of Losartan(Maximum Observed Concentration of Drug Substance in Plasma)509.63 ng/mLStandard Deviation 314.75
Hyzaar® (Reference)Cmax of Losartan(Maximum Observed Concentration of Drug Substance in Plasma)538.11 ng/mLStandard Deviation 298.89
90% CI: [80.2, 108.88]
Secondary

AUC0-inf of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Infinity)

Informational comparison of AUC0-inf values for the metabolite Losartan Carboxy Acid.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-inf of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Infinity)4281.32 ng*h/mLStandard Deviation 1182.77
Hyzaar® (Reference)AUC0-inf of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Infinity)4164.62 ng*h/mLStandard Deviation 1096.64
90% CI: [98.72, 106.01]
Secondary

AUC0-t of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)

Informational comparison of AUC0-t values for the metabolite Losartan Carboxy Acid.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)AUC0-t of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)4236.78 ng*h/mLStandard Deviation 1176.34
Hyzaar® (Reference)AUC0-t of Losartan Carboxy Acid(Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)4117.07 ng*h/mLStandard Deviation 1087.67
90% CI: [98.75, 106.14]
Secondary

Cmax of Losartan Carboxy Acid(Maximum Observed Concentration of Drug Substance in Plasma)

Informational comparison of Cmax values for the metabolite Losartan Carboxy Acid.

Time frame: Blood samples collected over a 48 hour period.

Population: All participants that completed the study had their samples analyzed.

ArmMeasureValue (MEAN)Dispersion
Losartan/HCTZ (Test)Cmax of Losartan Carboxy Acid(Maximum Observed Concentration of Drug Substance in Plasma)726.85 ng/mLStandard Deviation 210.78
Hyzaar® (Reference)Cmax of Losartan Carboxy Acid(Maximum Observed Concentration of Drug Substance in Plasma)675.54 ng/mLStandard Deviation 197.25
90% CI: [98.96, 115.23]

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