Skip to content

Cefadroxil 500 mg Capsules in Normal Healthy Non-Smoking Male and Female Subjects.

A Two-Way , Crossover, Open-Label, Single-Dose, Fed, Bioequivalence Study of Cefadroxil 500 mg Capsules Versus DURICEF® 500 mg Capsules in Normal Healthy Non-Smoking Male and Female Subjects.

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00835081
Enrollment
26
Registered
2009-02-03
Start date
2004-09-30
Completion date
2004-10-31
Last updated
2024-08-19

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 objective of this study is to compare the relative bioavailability of cefadroxil 500 mg capsules (manufactured by Teva Pharmaceuticals USA) with that of DURICEF® 500 mg capsules (manufactured by Bristol-Myers Squibb Company) when dosed (1 x 500 mg capsules) in normal healthy non-smoking male and female subjects under fed conditions.

Detailed description

Criteria for Evaluation: FDA Bioequivalence Criteria Statistical Methods: FDA bioequivalence statistical methods

Interventions

Sponsors

Teva Pharmaceuticals USA
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Non-smoking male or female with a minimum age of 18 years (i.e. non-smoker or non-tobacco user for at least 90 days prior to pre-study medical screening. * Body mass index (BMI= weight/height2 greater than or equal to 19kg/m2 and less than or equal to 30kg/m2. * Availability of subject for the entire study period and willingness to adhere to protocol requirements, as evidenced by a signed Informed Consent Form. * Normal findings in the physical examination, 12-lead ECG and vital signs (blood pressure between 100-140/60-90 mmHg, heart rate between 50-99 beats/min, temperature between 35.8°C and 37.5°C. * Negative for drugs of abuse nicotine, hepatitis B-surface antigen, hepatitis C and HIV, and for female subjects, pregnancy (serum β-CG). * No clinical laboratory values outside of the acceptable range as defined by BCR, unless the Principal Investigator decides the are not clinically significant. * Female subjects who are surgically sterile for at least six months or post-menopausal for at least one year, or who will avoid pregnancy prior to the study, during the study and up until one month after the end of the study.

Exclusion criteria

* Known history of hypersensitivity to cefadroxil (e.g. Duricel®) and/or related drugs in the family of cephalosporins (Cephalexin, Cefaclor, Cefazolin, Cefuroxime Axetil, Cefotetan, Cefprozil, Cefixime, Ceftriaxone), and/or penicillins (Amoxicillin, Ampicillin, Clozacillin). * Known history or presence of fod allergies, or any condition known to interfere with the absorption, distribution, metabolism or excretion of drugs. * Any clinically significant illness during the last four weeks prior to entry into this study. * Presence of andy significant physical or organ abnormality. * Any subject with a history of drug abuse. * Any history or evidence of psychiatric or psychological disease (including depression) unless deemed not clinically significant by the Principal Investigator, or medical designate. * Use of any prescription medication within 14 days preceding entry into this study. * Use of over-the-counter (OTC) medication within 14 days preceding entry into this study (except for spermicidal/barrier contraceptive products). * Female subjects: use of contraceptives( oral, transdermal, implant, Mirena® IUD) within 30 days prior to drug administration or a depot injection or progestogen drug (e.g. Depo-Provera®) within one year prior to drug administration. * Female subjects: presence of pregnancy or lactation. * Any subject who has had blood drawn within 56 days preceding this study, during the conduct of any clinical study at a facility other than BCR, or within the lockout period specified by a previous study conducted at BCR. * Participation in a clinical trial with an investigational drug within 30 days preceding this study. * Any subject who has donated blood within 56 days preceding this study. * Any subject who has participated as a plasma donor in a plasmapheresis program within seven days preceding this study. * Significant or recent history of asthma (after 12 years of age). * Any subject with a recent(less than one year) history of alcohol abuse. * Known personal history of gastrointestinal illness or disease, particularly colitis. * Any history of severe allergic reaction (including drugs, food, insect bites, environmental allergens). * Intolerance to venipuncture.

Design outcomes

Primary

MeasureTime frameDescription
Cmax (Maximum Observed Concentration)Blood samples collected over a 12 hour period.Bioequivalence based on Cmax.
AUC0-t (Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)Blood samples collected over a 12 hour period.Bioequivalence based on AUC0-t.
AUC0-inf (Area Under the Concentration-time Curve From Time Zero to Infinity)Blood samples collected over a 12 hour period.Bioequivalence based on AUC0-inf.

Countries

Canada, United States

Participant flow

Participants by arm

ArmCount
Cefadroxil (Test) First
500 mg Cefadroxil Capsules test product dosed in first period followed by 500 mg Duricef® Capsules reference product dosed in the second period.
13
Duricef® (Reference) First
500 mg Duricef® Capsules reference product dosed in first period followed by 500 mg Cefadroxil Capsules test product dosed in the second period.
13
Total26

Withdrawals & dropouts

PeriodReasonFG000FG001
Washout of 7 DaysWithdrawal by Subject10

Baseline characteristics

CharacteristicTotalDuricef® (Reference) FirstCefadroxil (Test) First
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
0 Participants0 Participants0 Participants
Age, Categorical
Between 18 and 65 years
26 Participants13 Participants13 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants4 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
21 Participants9 Participants12 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
5 participants3 participants2 participants
Race/Ethnicity, Customized
Black
6 participants3 participants3 participants
Race/Ethnicity, Customized
White
15 participants7 participants8 participants
Region of Enrollment
United States
26 participants13 participants13 participants
Sex: Female, Male
Female
13 Participants6 Participants7 Participants
Sex: Female, Male
Male
13 Participants7 Participants6 Participants

Outcome results

Primary

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

Bioequivalence based on AUC0-inf.

Time frame: Blood samples collected over a 12 hour period.

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

ArmMeasureValue (MEAN)Dispersion
Cefadroxil (Test)AUC0-inf (Area Under the Concentration-time Curve From Time Zero to Infinity)43.987 ng*h/mLStandard Deviation 7.149
Duricef® (Reference)AUC0-inf (Area Under the Concentration-time Curve From Time Zero to Infinity)44.109 ng*h/mLStandard Deviation 7.631
90% CI: [97.4, 102]
Primary

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

Bioequivalence based on AUC0-t.

Time frame: Blood samples collected over a 12 hour period.

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

ArmMeasureValue (MEAN)Dispersion
Cefadroxil (Test)AUC0-t (Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)42.656 ng*h/mLStandard Deviation 7.063
Duricef® (Reference)AUC0-t (Area Under the Concentration-time Curve From Time Zero to Time of Last Measurable Concentration)42.685 ng*h/mLStandard Deviation 7.572
90% CI: [97.5, 103]
Primary

Cmax (Maximum Observed Concentration)

Bioequivalence based on Cmax.

Time frame: Blood samples collected over a 12 hour period.

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

ArmMeasureValue (MEAN)Dispersion
Cefadroxil (Test)Cmax (Maximum Observed Concentration)12.024 ng/mLStandard Deviation 1.405
Duricef® (Reference)Cmax (Maximum Observed Concentration)11.9 ng/mLStandard Deviation 2.688
90% CI: [95.9, 110]

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