Bioequivalence Study Of PHENYTOIN Suspension Made By Pfizer, Versus EPAMIN® Made By McNeil LA LLC In Healthy Volunteers Under Fasting Conditions
- Registration Number
- NCT01122953
- Lead Sponsor
- Pfizer's Upjohn has merged with Mylan to form Viatris Inc.
- Brief Summary
To investigate the bioequivalence between two compounds (phenytoin and epamin) by a randomized, single dose study under fasting conditions in healthy volunteers.
- Detailed Description
Bioequivalence study in healthy volunteers
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 34
Inclusion Criteria
- Healthy male and/or female subjects between the ages of 18 and 55 years
- Body Mass Index (BMI) of 18 to 26.9 kg/m2 or ± 10% variation of the ideal weight; and a total body weight >50 kg (110 lbs).
- An informed consent document signed and dated by the subject or a legally acceptable representative.
Exclusion Criteria
- Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurologic, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at time of dosing).
- Any condition possibly affecting drug absorption (eg, gastrectomy).
- A positive urine drug screen.
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- CROSSOVER
- Arm && Interventions
Group Intervention Description Epamin Epamin - Phenytoin Phenytoin -
- Primary Outcome Measures
Name Time Method Area under the curve (AUC): The AUC from administration to the last sampling time will be determined by the trapezoid method. 0-168 h Maximum Concentration (Cmax): The maximum plasmatic concentration (Cmax) will be obtained as the highest concentration observed in the sampling interval. 0-168 h Time maximum concentration (tmax) is observed. Will be reported as the time at which the maximum concentration is observed. 0-168 h
- Secondary Outcome Measures
Name Time Method Constant of elimination (ke): Will be determined as the slope from the linear logarithmic regression of the terminal phase of the logarithmic graph of concentration over time. 0-168 h
Related Research Topics
Explore scientific publications, clinical data analysis, treatment approaches, and expert-compiled information related to the mechanisms and outcomes of this trial. Click any topic for comprehensive research insights.
How do Pfizer's and McNeil's phenytoin suspensions compare in CYP2C9-mediated metabolism and sodium channel inhibition mechanisms?
What are the comparative bioavailability and therapeutic equivalence of phenytoin formulations in epilepsy treatment?
Which genetic biomarkers (e.g., CYP2C9 polymorphisms) predict individual response to phenytoin suspension formulations?
What adverse event profiles and management strategies differentiate Pfizer's vs. McNeil's phenytoin suspensions in Phase 1 trials?
How do other phenytoin formulations or competitor anticonvulsants compare in bioequivalence and seizure control efficacy?
Trial Locations
- Locations (1)
Pfizer Investigational Site
🇲🇽Mexico, Distrito Federal, Mexico