Clinical trial NCT01767584: Bioequivalence Study of Cephalexin Tablets 1g
Official title: Open, Two Periods, Two Treatments, Two Sequences, Cross-over, Randomized Study With Single Dosage of Two Oral Preparations Containing 1 g of Cephalexin (GlaxoSmithKline México, S.A. de C.V. vs. Keflex® 1g, Eli Lilly y Compañía de México, S.A. de C.V.) in Fasting Healthy Volunteers.
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE1
Conditions: Infections, Respiratory Tract
Keywords: Pharmacokinetics
Bioequivalence
Mexico
Cephalexin
Lead sponsor: GlaxoSmithKline
Sponsor class: INDUSTRY
First posted: 2013-01-14
Enrollment: 26
Sex: ALL
Minimum age (years): 18
Maximum age (years): 40
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: OTHER

Brief summary: The objective of this study was to confirm if two formulations of cephalexin tablets are bioequivalent.

Test product was Ceporex® (1 g Cephalexin; GlaxoSmithKline) and reference product Keflex® (1 g Cephalexin; Eli Lilly). The single dosage was one tablet.

The study was prospective, open-label, randomized, crossover, single dose, with 02 treatments, 02 sequences and 02 periods, under fasting conditions.

The population was composed of 26 healthy volunteers, both genders, adults between 18-40 years.

The comparative bioavailability of the two formulations was evaluated based in statistical comparisons of relevant pharmacokinetic parameters, obtained from data of drug concentrations in blood.


Eligibility criteria: Inclusion Criteria:

Free will participation according to Mexican regulation, Helsinki Declaration, and Good Clinical Practice.

Healthy, between 18 and 40 years. Body Mass Index between 19 and 27 In good health by complete medical history and laboratory tests. Blood pressure 130-90/ 90-60 mm Hg; heart rate 55-100 beat per minute, respiratory rate 14-20 movements per minute.

Laboratory tests +/- 10% of normal interval (blood cytology, blood chemistry 27 elements, Hepatitis B and C antigens, HIV, urinalysis, anti-doping, pregnancy, electrocardiogram) -

Exclusion Criteria:

Alteration of vital signs Not complying with inclusion criteria History of cardiovascular, kidney, hepatic, muscular, metabolic, gastrointestinal (including constipation), neurologic, endocrine, hematopoietic (any kind of anemia), asthma, mental or organic disease. Those suffering from muscular trauma 21 days before the beginning of the study.

Requirement of any kind of medication during the course of the study, except study medication.

History of dyspepsia, gastritis, esophagitis, duodenal or gastric ulcer. Exposure to medications known as inducers or inhibitors of hepatic enzymes or administration of potentially toxic medication in the 30 days before the study beginning.

Administration of any medication in the 14 days or 5 half-lives (whatever longer) previous to the beginning of the study.

Hospitalization for any cause in the seven months before the beginning of the study.

Administration of investigational drugs in the 60 days before the study. Allergy to any antibiotic or non-steroidal anti-inflammatory analgesic. Alcohol ingestion or intake of beverages containing xanthines (coffee, tea, cocoa, chocolate, mate, cola drinks) or ingestion of charcoal grilled food or grapefruit or orange juice in the 72 hours before the hospitalization or tobacco smoking in the 72 hours before the beginning of the study.

Blood donation or loss =\> 450 ml in the 60 days before the beginning of the study.

History of drug or alcohol abuse. Positive pregnancy test. Special diet requirement, for instance vegetarian diet. Inability to understand nature, aims, and possible consequences of the study. Evidence of non-cooperative attitude during the study.

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Primary outcomes:
measure: Peak Plasma Concentration (CMAX) of cephalexin
timeFrame: 0.0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, and 7.0 postdosage
measure: Area under the plasma concentration versus time curve (AUC) of cephalexin
timeFrame: 0.0, 0.25, 0.5, 0.75, 1.0, 1.25, 1.5, 1.75, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, and 7.0 postdosage
Secondary outcomes:
Other outcomes:
Locations:
Study officials:
affiliation: GlaxoSmithKline
name: GSK Clinical Trials
role: STUDY_DIRECTOR
References: