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Phenytoin

Phase 3

Undisclosed | Small molecule | Other |Viatris Inc.|Trials Updated: Jan 27, 2021

Phenytoin development status

Highest phase Phase 3 run by Johnson & Johnson Pharmaceutical Research & Development, L.L.C. (NCT00210782)
Phase scored for VTRSPhase 1
Registered trials 16 across 14 sponsors since Sep 2005

Phenytoin target and mechanism

Molecular targetSCN1A, SCN5A, SCN4A, SCN7A, SCN2A, SCN9A
Target classBlocker
ModalitySmall molecule
ChEMBLCHEMBL16

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLED
Total Trials1
Total Enrollment34

FDA Designations

No designations recorded

Phenytoin clinical trials

Phenytoin · 1 trial · 1 indication

Phase 1 1
NCT01122953Bioequivalence Study Of PHENYTOIN Suspension Made By Pfizer, Versus EPAMIN® Made By McNeil LA LLC In Healthy Volunteers Under Fasting ConditionsHealthy
COMPLETED34 Analytics
PHASE1COMPLETED
Bioequivalence Study Of PHENYTOIN Suspension Made By Pfizer, Versus EPAMIN® Made By McNeil LA LLC In Healthy Volunteers Under Fasting Conditions
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Study Endpoints

Primary Endpoints

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 Endpoints

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
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelCROSSOVER
PurposeOTHER

Treatment Arms

ArmTypeDescription
PhenytoinEXPERIMENTAL -
EpaminACTIVE_COMPARATOR -

Interventions

NameTypeDescription
PhenytoinDRUGSingle dose of Phenytoin 125 mg/5 ml suspension made by Laboratorios Pfizer, S.A. de C.V.
EpaminDRUGSingle dose Epamin 125 mg/5 ml suspension made by McNeil LA LLC
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Eligibility Criteria

Age Range18 Years to 55 Years
SexALL
Healthy VolunteersYes
Study Sites1

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 ac...

Countries:Mexico
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Frequently asked questions about Phenytoin

What is Phenytoin?

Phenytoin is a small molecule drug developed by Viatris Inc. (ticker VTRS). It is being studied in a Phase 1 program, and the specific therapeutic indication for this program is not publicly disclosed. Phenytoin is a well-known small molecule and the development work referenced here centers on a bioequivalence study in healthy volunteers.

What does Phenytoin target?

Phenytoin targets the voltage-gated sodium channels SCN1A, SCN5A, SCN4A, SCN7A, SCN2A, and SCN9A. It acts as a blocker of these channels, which are sodium channel proteins involved in electrical signaling in excitable cells. This target class places Phenytoin among sodium channel blocking small molecules.

Who makes Phenytoin?

Phenytoin is developed by Viatris Inc., which trades under the ticker VTRS. The bioequivalence study of Phenytoin suspension was conducted comparing a Pfizer-made suspension against EPAMIN made by McNeil LA LLC, indicating multiple manufacturers have been involved with Phenytoin formulations.

What phase is Phenytoin in?

Phenytoin is in Phase 1 development according to the program tracked for Viatris Inc. The single listed trial is a Phase 1 bioequivalence study that has been completed. No FDA approval status for this specific development program is stated here, so it should be regarded as investigational in this context.

What clinical trials is Phenytoin in?

Phenytoin has one listed clinical trial, NCT01122953, titled a bioequivalence study of Phenytoin suspension made by Pfizer versus EPAMIN made by McNeil LA LLC in healthy volunteers under fasting conditions. The trial was Phase 1, active-controlled, randomized, completed, enrolled 34 participants, and was conducted in Mexico with adults 18 years and older.

Is Phenytoin the same as EPAMIN?

EPAMIN is a brand-name formulation of phenytoin made by McNeil LA LLC, and the Phenytoin suspension in trial NCT01122953 was compared against EPAMIN to assess bioequivalence. Both refer to phenytoin-based products, with EPAMIN serving as the reference comparator in that healthy volunteer study conducted in Mexico.