CClinicalTrials.gg
CompletedNCT00685139Updated Jan 26, 2010Results posted

Fasting Bioavailability Study of Zonisamide Capsules

A Phase 1 interventional study of Zonisamide 100 mg Capsule and Zonisamide (Zonegran®) 100 mg Capsule in Healthy, sponsored by Mutual Pharmaceutical Company, Inc.. Completed. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2010-01-26.

Sponsored by Mutual Pharmaceutical Company, Inc. · Phase 1, Interventional, and Basic science

Phase
Phase 1
Study type
Interventional
Enrollment
34
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate and compare the relative bioavailability of a test formulation of zonisamide capsules to an equivalent dose of a reference formulation, Zonegran® (zonisamide) capsules, after a single oral dose administered under fasting conditions.

Read the detailed description

The purpose of this study is to evaluate and compare the relative bioavailability of a test formulation of zonisamide capsules to an equivalent dose of a reference formulation, Zonegran® (zonisamide) capsules, after a single oral dose administered under fasting conditions.

Thirty-four healthy, non-smoking, non-obese male and female volunteers at least 18 years of age will be randomly assigned in a crossover fashion to receive each of two zonisamide dosing regimens in sequence with a 28 day washout period between dosing periods. On the morning of Day 1, after an overnight fast, subjects will receive either a single oral dose of the test formulation, zonisamide (1 x 100 mg capsule) or a single oral dose of the reference formulation, Zonegran® (1 x 100 mg capsule). After a 28 day washout period, on the morning of Day 29 after an overnight fast, subjects will receive the alternate regimen. Blood samples will be drawn from all participants before dosing and for 72 hours post dose at times sufficient to adequately define the pharmacokinetics of zonisamide. A further goal of this study is to evaluate the safety and tolerability of this regimen in healthy volunteers. Subjects will be monitored throughout the confinement portion of the study for adverse reactions to the study drug and/or procedures. Blood pressure and heart rate will be obtained prior to dosing and as scheduled following dose administration. All adverse events whether elicited by query, spontaneously reported or observed by clinic staff will be evaluated by the investigator and reported in the subject's case report form.

02

Conditions studied

  • Healthy

Keywords

  • Therapeutic Equivalency
03

In context

Lead sponsor

Mutual Pharmaceutical Company, Inc. is the lead sponsor of 42 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Screening Demographics:
  • All volunteers selected for this study will be healthy men and women 18 years of age or older at the time of dosing
  • Weight range will not exceed ± 20% for height and body frame
  • Screening Procedures:
  • Each volunteer will complete the screening process within 28 days prior to Period I dosing
  • Consent documents for both the screening evaluation and HIV antibody determination will be reviewed, discussed, and signed by each potential participant before full implementation of screening procedures
  • Screening will include general observation, physical examination, demographics, medical and medication history, an electrocardiogram, sitting blood pressure and heart rate, respiratory rate and temperature
  • The physical examination will include, but may not be limited to, an evaluation of the cardiovascular, gastrointestinal, respiratory and central nervous systems
  • The screening clinical laboratory procedures will include: Hematology, Clinical Chemistry, HIV antibody, Hepatitis B-surface antigen, Hepatitis C antibody, Urinalysis, Urine Drug Screen, Serum Pregnancy Screen, Follicle Stimulating Hormone
  • If female: postmenopausal for 1 year or surgically sterile.

Exclusion criteria

Exclusion Criteria:

  • Volunteers with a recent history of drug or alcohol addiction or abuse
  • Volunteers with the presence of a clinically significant disorder involving the cardiovascular, respiratory, renal, gastrointestinal, immunologic, hematologic, endocrine, or neurologic system(s) or psychiatric disease
  • Volunteers whose clinical laboratory test values are outside the accepted reference range and when confirmed on re-examination are deemed to be clinically significant
  • Volunteers demonstrating a reactive screen for hepatitis B surface antigen, hepatitis C antibody or HIV antibody screen
  • Volunteers demonstrating a positive drug abuse screen when screened for this study
  • Female volunteers demonstrating a positive pregnancy screen
  • Female volunteers who are currently breastfeeding
  • Volunteers with a history of allergic response(s) to zonisamide or related drugs
  • Volunteers with a history of clinically significant allergies including drug allergies
  • Volunteers with a clinically significant illness during the 4 weeks prior to Period I dosing (as determined by the clinical investigator)
  • Volunteers who currently use tobacco products
  • Volunteers who have taken any drug known to induce or inhibit hepatic drug metabolism in the 28 days prior to Period I dosing
  • Volunteers who report donating greater than 150mL of blood within 28 days prior to Period I dosing. All subjects will be advised not to donate blood for four weeks after completing the study
  • Volunteers who report receiving any investigational drug within 14 days prior to Period I dosing.
  • Volunteers who have donated plasma(e.g. plasmapheresis) within 14 days prior to Period I dosing. All subjects will be advised not to donate plasma for four weeks after completing the study
  • Volunteers who report taking any systemic prescription medication in the 14 days prior to Period I dosing.
05

Study design

Phase
Phase 1
Primary purpose
Basic science
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Investigator)
Enrollment
34 participants (actual)

Study arms

  • Experimental
    Zonisamide 100 mg Capsule

    A single dose of zonisamide 100 mg administered after an overnight fast.

    Drug: Zonisamide 100 mg Capsule

  • Experimental
    Zonisamide (Zonegran® ) 100 mg Capsule

    A single dose of Zonegran® 100 mg administered after an overnight fast.

    Drug: Zonisamide (Zonegran®) 100 mg Capsule

Interventions

  • DrugZonisamide 100 mg Capsule

    100 mg capsule administered after an overnight fast.

  • DrugZonisamide (Zonegran®) 100 mg Capsule

    100 mg capsule administered after an overnight fast.

    Also known as: Zonegran®

06

What researchers measure

Primary outcomes

  1. Maximum Plasma Concentration (Cmax)

    The maximum or peak concentration that the drug reaches in the plasma.

    Time frame: serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 60 and 72 hours after drug administration.

  2. Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]

    The area under the plasma concentration versus time curve, from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule.

    Time frame: serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 60 and 72 hours after drug administration.

07

Results

Posted Dec 30, 2009

Participant flow

First Intervention
Participant flow — First Intervention
MilestoneZonisamide 100 mg Capsules Then Zonegran® 100 mg CapsulesZonegran® 100 mg Capsules Then Zonisamide 100 mg Capsules
Started1717
Completed1717
Not completed00
Washout Period of 28 Days
Participant flow — Washout Period of 28 Days
MilestoneZonisamide 100 mg Capsules Then Zonegran® 100 mg CapsulesZonegran® 100 mg Capsules Then Zonisamide 100 mg Capsules
Started1717
Completed1717
Not completed00
Second Intervention
Participant flow — Second Intervention
MilestoneZonisamide 100 mg Capsules Then Zonegran® 100 mg CapsulesZonegran® 100 mg Capsules Then Zonisamide 100 mg Capsules
Started1717
Completed1717
Not completed00

Outcome measures

PrimaryMaximum Plasma Concentration (Cmax)

The maximum or peak concentration that the drug reaches in the plasma.

Time frame:
serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 60 and 72 hours after drug administration.
Reported as:
Mean · ng/mL
Maximum Plasma Concentration (Cmax)
ng/mLZonisamide 100 mg CapsulesZonegran® 100 mg Capsules
Maximum Plasma Concentration (Cmax)1,052.65 ± 348.131,078.46 ± 417.66
PrimaryArea Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]

The area under the plasma concentration versus time curve, from time 0 to the time of the last measurable concentration (t), as calculated by the linear trapezoidal rule.

Time frame:
serial pharmacokinetic plasma concentrations were drawn prior to dose administration (0 hour) and at 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 8, 10, 12, 16, 24, 36, 48, 60 and 72 hours after drug administration.
Reported as:
Mean · ng-hr/mL
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]
ng-hr/mLZonisamide 100 mg CapsulesZonegran® 100 mg Capsules
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]42,338.31 ± 11,202.9642,873.95 ± 11,964.12

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Zonisamide 100 mg Capsules—0/34 (0%)5/34 (14.7%)
Zonegran® 100 mg Capsules—0/34 (0%)3/34 (8.8%)
Most frequent other events
Most frequent other events
EventZonisamide 100 mg CapsulesZonegran® 100 mg Capsules
NasopharyngitisInfections and infestations2/340/34
DizzinessNervous system disorders1/341/34
PyrexiaGeneral disorders1/340/34
CoughRespiratory, thoracic and mediastinal disorders1/341/34
RhinorrheaRespiratory, thoracic and mediastinal disorders1/340/34
Sinus congestionRespiratory, thoracic and mediastinal disorders1/341/34
Gastroenteritis viralInfections and infestations1/340/34
HeadacheNervous system disorders0/341/34
HaematomaBlood and lymphatic system disorders0/341/34
Muscular weaknessMusculoskeletal and connective tissue disorders0/341/34

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)Zonisamide 100 mg Capsules and Zonegran® 100 mg Capsules
<=18 years0
Between 18 and 65 years33
>=65 years1
Age Continuous
Age Continuous(years)Zonisamide 100 mg Capsules and Zonegran® 100 mg Capsules
Mean33.6 ± 15
Sex: Female, Male
Sex: Female, Male(Participants)Zonisamide 100 mg Capsules and Zonegran® 100 mg Capsules
Female8
Male26
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Zonisamide 100 mg Capsules and Zonegran® 100 mg Capsules
American Indian or Alaska Native0
Asian1
Native Hawaiian or Other Pacific Islander0
Black or African American1
White31
More than one race0
Unknown or Not Reported1
08

Study locations

No study locations are listed for this record.

09

References and documents

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 26, 2010, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00685139
Lead sponsor
Mutual Pharmaceutical Company, Inc.
First posted
May 28, 2008
Start date
Jan 2005
Primary completion
Mar 2005
Completion
Mar 2005
Results posted
Dec 30, 2009
Last update
Jan 26, 2010

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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