Trial Outcomes & Findings for Fasting Bioavailability Study of Zonisamide Capsules (NCT NCT00685139)

NCT ID: NCT00685139

Last Updated: 2010-01-26

Results Overview

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

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

34 participants

Primary outcome timeframe

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.

Results posted on

2010-01-26

Participant Flow

Participant milestones

Participant milestones
Measure
Zonisamide 100 mg Capsules Then Zonegran® 100 mg Capsules
On the morning of Day 1 subjects received one capsule of the test formulation, zonisamide 100 mg, after an overnight fast, followed by a 28 day washout period. On the morning of Day 29 subjects received one capsule of the reference formulation, Zonegran® 100 mg, after an overnight fast.
Zonegran® 100 mg Capsules Then Zonisamide 100 mg Capsules
On the morning of Day 1 subjects received one capsule of the reference formulation, Zonegran® 100 mg, after an overnight fast, followed by a 28 day washout period. On the morning of Day 29 subjects received one capsule of the test formulation, zonisamide 100 mg, after an overnight fast.
First Intervention
STARTED
17
17
First Intervention
COMPLETED
17
17
First Intervention
NOT COMPLETED
0
0
Washout Period of 28 Days
STARTED
17
17
Washout Period of 28 Days
COMPLETED
17
17
Washout Period of 28 Days
NOT COMPLETED
0
0
Second Intervention
STARTED
17
17
Second Intervention
COMPLETED
17
17
Second Intervention
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Fasting Bioavailability Study of Zonisamide Capsules

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Zonisamide 100 mg Capsules and Zonegran® 100 mg Capsules
n=34 Participants
All subjects received each of the two study regimens in a randomly assigned sequence of dosing periods. On the mornings of Day 1 and Day 29, each subject received one capsule of either zonisamide 100 mg or Zonegran® 100 mg following an overnight fast.
Age, Categorical
<=18 years
0 Participants
n=5 Participants
Age, Categorical
Between 18 and 65 years
33 Participants
n=5 Participants
Age, Categorical
>=65 years
1 Participants
n=5 Participants
Age Continuous
33.6 years
STANDARD_DEVIATION 15 • n=5 Participants
Sex: Female, Male
Female
8 Participants
n=5 Participants
Sex: Female, Male
Male
26 Participants
n=5 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
n=5 Participants
Race (NIH/OMB)
Asian
1 Participants
n=5 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
n=5 Participants
Race (NIH/OMB)
Black or African American
1 Participants
n=5 Participants
Race (NIH/OMB)
White
31 Participants
n=5 Participants
Race (NIH/OMB)
More than one race
0 Participants
n=5 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants
n=5 Participants

PRIMARY outcome

Timeframe: 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.

Population: Pharmacokinetic analyses are based on 33 out of 34 subjects who completed this study. One subject elected to withdraw prior to the study hour 2 blood sample collection during period II.

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

Outcome measures

Outcome measures
Measure
Zonisamide 100 mg Capsules
n=33 Participants
On the morning of Day 1 subjects received one capsule of the test formulation, zonisamide 100 mg, or the reference formulation, Zonegran® 100 mg, after an overnight fast followed by a 28 day washout period. On the morning of Day 29 subjects received the alternate regimen following an overnight fast.
Zonegran® 100 mg Capsules
n=33 Participants
On the morning of Day 1 subjects received one capsule of the test formulation, zonisamide 100 mg, or the reference formulation, Zonegran® 100 mg, after an overnight fast followed by a 28 day washout period. On the morning of Day 29 subjects received the alternate regimen following an overnight fast.
Maximum Plasma Concentration (Cmax)
1,052.65 ng/mL
Standard Deviation 348.13
1,078.46 ng/mL
Standard Deviation 417.66

PRIMARY outcome

Timeframe: 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.

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.

Outcome measures

Outcome measures
Measure
Zonisamide 100 mg Capsules
n=33 Participants
On the morning of Day 1 subjects received one capsule of the test formulation, zonisamide 100 mg, or the reference formulation, Zonegran® 100 mg, after an overnight fast followed by a 28 day washout period. On the morning of Day 29 subjects received the alternate regimen following an overnight fast.
Zonegran® 100 mg Capsules
n=33 Participants
On the morning of Day 1 subjects received one capsule of the test formulation, zonisamide 100 mg, or the reference formulation, Zonegran® 100 mg, after an overnight fast followed by a 28 day washout period. On the morning of Day 29 subjects received the alternate regimen following an overnight fast.
Area Under the Concentration Versus Time Curve From Time 0 to Time t [AUC(0-t)]
42,338.31 ng-hr/mL
Standard Deviation 11,202.96
42,873.95 ng-hr/mL
Standard Deviation 11,964.12

Adverse Events

Zonisamide 100 mg Capsules

Serious events: 0 serious events
Other events: 5 other events
Deaths: 0 deaths

Zonegran® 100 mg Capsules

Serious events: 0 serious events
Other events: 3 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
Zonisamide 100 mg Capsules
n=34 participants at risk
All subjects received each of the two study regimens in a randomly assigned sequence of dosing periods. On the mornings of Day 1 and Day 29, each subject received one capsule of either zonisamide 100 mg or Zonegran 100 mg following an overnight fast.
Zonegran® 100 mg Capsules
n=34 participants at risk
All subjects received each of the two study regimens in a randomly assigned sequence of dosing periods. On the mornings of Day 1 and Day 29, each subject received one capsule of either zonisamide 100 mg or Zonegran® 100 mg following an overnight fast.
Nervous system disorders
Dizziness
2.9%
1/34 • Number of events 1
2.9%
1/34 • Number of events 1
General disorders
Pyrexia
2.9%
1/34 • Number of events 1
0.00%
0/34
Respiratory, thoracic and mediastinal disorders
Cough
2.9%
1/34 • Number of events 1
2.9%
1/34 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Rhinorrhea
2.9%
1/34 • Number of events 1
0.00%
0/34
Respiratory, thoracic and mediastinal disorders
Sinus congestion
2.9%
1/34 • Number of events 1
2.9%
1/34 • Number of events 1
Infections and infestations
Gastroenteritis viral
2.9%
1/34 • Number of events 1
0.00%
0/34
Nervous system disorders
Headache
0.00%
0/34
2.9%
1/34 • Number of events 1
Infections and infestations
Nasopharyngitis
5.9%
2/34 • Number of events 2
0.00%
0/34
Blood and lymphatic system disorders
Haematoma
0.00%
0/34
2.9%
1/34 • Number of events 1
Musculoskeletal and connective tissue disorders
Muscular weakness
0.00%
0/34
2.9%
1/34 • Number of events 1

Additional Information

Medical Director

Mutual Pharmaceutical Company, Inc.

Phone: 215-697-1743

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place

Restriction type: GT60