Bioequivalence Study of 300 mg Gabapentin

Epilepsy Clinical Trial

Official title:

Bioequivalence Study Between Two Medications for Administration of Oral Gabapentin in 300 mg Capsules in Healthy Volunteers

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01738893
• Other study ID #: 116850
• Status: Completed
• Phase: Phase 1
• First received: November 28, 2012
• Last updated: June 19, 2017
• Start date: January 14, 2011
• Est. completion date: January 22, 2011

Study information

• Verified date: June 2017
• Source: GlaxoSmithKline
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

The objective of this study was to confirm if two formulations of gabapentin (capsules) are bioequivalent.

Test product was Darbetin® 300 mg (Laboratorios Dermatológicos Darier) and reference product Nerotin® 300 mg (Pfizer). One capsule was the single dosage.

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 18-55 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.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 26
• Est. completion date: January 22, 2011
• Est. primary completion date: January 22, 2011
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 55 Years

Eligibility

Inclusion Criteria:

Males 18-55 years. Healthy based on comprehensive medical history, lab tests, Chest x-ray, Electrocardiogram, negative tests for Hepatitis B and C, and HIV. Negative urine doping test. BMI 19-26.5 kg/m2. Lab test in normal range +/- 10%. Blood pressure 139-90/89-50, heart rate 100-55, respiratory rate 24-17, temperature 37.5-35 °C. Non-smoking at least for 10 hrs before study. Written informed consent. Women must be not pregnant, nor breast-feeding.

Exclusion Criteria:

Hypersensitivity to study medication or other related drug. History of cardiovascular, renal, hepatic, metabolic, gastrointestinal, neurologic, endocrine, hematopoietic, psychiatric or organic condition.

Requiring any drug interfering with minocycline pharmacokinetics. Exposed to inducers or inhibitors of hepatic enzymes. Intake of possible toxic drugs 30 days before study. Intake of any drug 14 days or 7 half-lives before study. Hospitalization or severe disease 60 days before study. Receiving investigational drug out of study center 30 days before study. Blood loss or blood donation =>450 ml 60 days before study. Recent history of drug abuse including alcohol. Intake of xanthine containing products 10 hrs before study. Intake of grapefruit juice or hot-spice 10 hrs before study.

Related Conditions & MeSH terms

• Epilepsy

Intervention

Drug:
• Gabapentin 300 mg
Test product
• Gabapentin 300 mg
Reference product

Locations

Country	Name	City	State
n/a

Sponsors (1)

Lead Sponsor	Collaborator
GlaxoSmithKline

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Peak Plasma Concentration (CMAX) of drug gabapentin	Pharmacokinetics	0.0, 0.50, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, and 24.0 postdosage
Primary	Area under the plasma concentration versus time curve (AUC) of gabapentin	Pharmacokinetics	0.0, 0.50, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0, 12.0, and 24.0 postdosage

External Links

•   Results for study 116850 can be found on the GSK Clinical Study Register.