Trial Outcomes & Findings for A Study of Intravenous Perampanel in Japanese Participants With Epilepsy (NCT NCT03754582)

NCT ID: NCT03754582

Last Updated: 2021-01-05

Results Overview

A SAE was defined as any untoward medical occurrence that at any dose: Resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect.

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

21 participants

Primary outcome timeframe

Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after last dose)

Results posted on

2021-01-05

Participant Flow

Participants took part in this study at 13 investigative sites in Japan from 27 November 2018 to 10 December 2019.

A total of 27 participants were consented, of which 6 were screen failures and 21 were enrolled and received the study treatment.

Participant milestones

Participant milestones
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
Participants with partial onset-seizures (POS) with or without secondarily generalized seizures or primary generalized tonic clonic (PGTC) seizures received perampanel 8 milligram (mg) up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant antiepileptic drugs (AEDs). Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Pretreatment Phase
STARTED
21
0
0
Pretreatment Phase
COMPLETED
21
0
0
Pretreatment Phase
NOT COMPLETED
0
0
0
Treatment Phase
STARTED
0
21
0
Treatment Phase
COMPLETED
0
20
0
Treatment Phase
NOT COMPLETED
0
1
0
Follow-up Phase
STARTED
0
0
21
Follow-up Phase
COMPLETED
0
0
20
Follow-up Phase
NOT COMPLETED
0
0
1

Reasons for withdrawal

Reasons for withdrawal
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
Participants with partial onset-seizures (POS) with or without secondarily generalized seizures or primary generalized tonic clonic (PGTC) seizures received perampanel 8 milligram (mg) up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant antiepileptic drugs (AEDs). Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase
Adverse Event
0
1
0
Follow-up Phase
Other
0
0
1

Baseline Characteristics

A Study of Intravenous Perampanel in Japanese Participants With Epilepsy

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received maintenance dose of perampanel 8 to 12 mg, tablets, orally, once daily for 28 days (Day -28 to Day -1) in Pretreatment Phase followed by 8 to 12 mg maintenance dose of perampanel equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily from Day 1 to Day 4 in Treatment Phase, and then 8 to 12 mg maintenance dose of perampanel, tablets, orally, once daily from Day 5 to Day 11 (Follow-up Visit) in Follow-up Phase as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Age, Continuous
40.7 years
STANDARD_DEVIATION 12.76 • n=5 Participants
Sex: Female, Male
Female
12 Participants
n=5 Participants
Sex: Female, Male
Male
9 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
21 Participants
n=5 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
Race/Ethnicity, Customized
Japanese
21 Participants
n=5 Participants

PRIMARY outcome

Timeframe: Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after last dose)

Population: All participants who received at least 1 dose of study drug.

A SAE was defined as any untoward medical occurrence that at any dose: Resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent or significant disability/incapacity; was a congenital anomaly/birth defect.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Serious Adverse Events (SAEs)
0 Participants
1 Participants
2 Participants

PRIMARY outcome

Timeframe: Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after last dose)

Population: All participants who received at least 1 dose of study drug.

An AE was defined as any untoward medical occurrence in a clinical investigation participant administered a drug; it does not necessarily have to have a causal relationship with this treatment. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of an investigational product, whether or not considered related to the investigational product, any new disease or exacerbation of an existing disease, any deterioration in nonprotocol-required measurements of a laboratory value or other clinical test that resulted in symptoms, a change in treatment, or discontinuation of study drug, recurrence of an intermittent medical condition not present pretreatment, an abnormal laboratory test result was considered an AE if the identified laboratory abnormality led to any type of intervention, withdrawal of study drug, or withholding of study drug, whether prescribed in the protocol or not.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Adverse Events (AEs)
3 Participants
15 Participants
6 Participants

PRIMARY outcome

Timeframe: Up to Day 11 (Treatment Phase: at Day 4, Follow-up Phase: up to 7 days after last dose)

Population: All participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Markedly Abnormal Clinical Laboratory Parameter Values During Treatment and Follow-up Phase
Triglycerides: Markedly Abnormal High
1 Participants
0 Participants
Number of Participants With Markedly Abnormal Clinical Laboratory Parameter Values During Treatment and Follow-up Phase
Urate: Markedly Abnormal High
0 Participants
1 Participants

PRIMARY outcome

Timeframe: Up to 11 days (Treatment Phase: up to 4 days, Follow-up Phase: up to 7 days after the last dose)

Population: All participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Abnormal Vital Sign Values During Treatment and Follow-up Phase
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Up to 11 days (Treatment Phase: up to 4 days, Follow-up Phase: up to 7 days after the last dose)

Population: All participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Abnormal Body Weight During Treatment and Follow-up Phase
0 Participants
0 Participants

PRIMARY outcome

Timeframe: Up to Day 11 (Treatment Phase: at Day 4, Follow-up Phase: up to 7 days after the last dose)

Population: All participants who received at least 1 dose of study drug.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Number of Participants With Clinically Significant Markedly Abnormal Electrocardiogram (ECG) Value During Treatment and Follow-up Phase
1 Participants
0 Participants

SECONDARY outcome

Timeframe: Up to 39 days (Pretreatment Phase: up to 28 days; Treatment Phase: up to 4 days; Follow-up Phase: up to 7 days after the last dose)

Population: All participants who received at least 1 dose of study drug. Here "Number Analyzed" signifies participants who were evaluable for this outcome measure for POS and PGTC seizures.

Seizure frequency was based on number of seizures per day, calculated as the number of seizures over the entire time interval divided by the number of days in the interval.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=21 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Mean Seizure Frequency Per Day in Pretreatment Phase, Treatment Phase and Follow-up Phase
POS
0.46 seizures per day
Standard Deviation 0.578
0.39 seizures per day
Standard Deviation 0.838
0.24 seizures per day
Standard Deviation 0.287
Mean Seizure Frequency Per Day in Pretreatment Phase, Treatment Phase and Follow-up Phase
PGTC Seizures
0 seizures per day
Standard Deviation NA
Standard Deviation could not be estimated as only 1 participant was available for analysis.
0 seizures per day
Standard Deviation NA
Standard Deviation could not be estimated as only 1 participant was available for analysis.
0 seizures per day
Standard Deviation NA
Standard Deviation could not be estimated as only 1 participant was available for analysis.

SECONDARY outcome

Timeframe: Pretreatment Phase-Day -1: Pre-dose, 0.5 hours, 1 hours and 1.5 hours post-dose; Treatment Phase-Day 1, Day 2, Day 3 and Day 4: Pre-dose and 0.5 hours after start of intravenous infusions

Population: All participants who received at least 1 dose of study drug. Here "Number Analyzed" signifies participants who were evaluable for this outcome measure at given time points.

Outcome measures

Outcome measures
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=11 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=5 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=5 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 8 mg/Day
n=11 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 10 mg/Day
n=5 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 10 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Treatment Phase: Intravenous Perampanel 12 mg/Day
n=5 Participants
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 4: Pre-dose
394 nanogram per milliliter (ng/mL)
Standard Deviation 307
297 nanogram per milliliter (ng/mL)
Standard Deviation 184
552 nanogram per milliliter (ng/mL)
Standard Deviation 259
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 4: 0.5 hour post-dose
554 nanogram per milliliter (ng/mL)
Standard Deviation 300
541 nanogram per milliliter (ng/mL)
Standard Deviation 209
841 nanogram per milliliter (ng/mL)
Standard Deviation 312
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day -1: Pre-dose
430 nanogram per milliliter (ng/mL)
Standard Deviation 336
352 nanogram per milliliter (ng/mL)
Standard Deviation 172
556 nanogram per milliliter (ng/mL)
Standard Deviation 255
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day -1: 0.5 hour post-dose
464 nanogram per milliliter (ng/mL)
Standard Deviation 369
435 nanogram per milliliter (ng/mL)
Standard Deviation 216
608 nanogram per milliliter (ng/mL)
Standard Deviation 271
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day -1: 1 hour post-dose
538 nanogram per milliliter (ng/mL)
Standard Deviation 385
499 nanogram per milliliter (ng/mL)
Standard Deviation 226
664 nanogram per milliliter (ng/mL)
Standard Deviation 282
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day -1: 1.5 hour post-dose
555 nanogram per milliliter (ng/mL)
Standard Deviation 356
521 nanogram per milliliter (ng/mL)
Standard Deviation 227
658 nanogram per milliliter (ng/mL)
Standard Deviation 284
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 1: Pre-dose
402 nanogram per milliliter (ng/mL)
Standard Deviation 304
316 nanogram per milliliter (ng/mL)
Standard Deviation 156
554 nanogram per milliliter (ng/mL)
Standard Deviation 234
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 1: 0.5 hour post-dose
609 nanogram per milliliter (ng/mL)
Standard Deviation 303
591 nanogram per milliliter (ng/mL)
Standard Deviation 172
837 nanogram per milliliter (ng/mL)
Standard Deviation 282
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 2: Pre-dose
382 nanogram per milliliter (ng/mL)
Standard Deviation 298
297 nanogram per milliliter (ng/mL)
Standard Deviation 170
540 nanogram per milliliter (ng/mL)
Standard Deviation 232
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 2: 0.5 hour post-dose
614 nanogram per milliliter (ng/mL)
Standard Deviation 315
520 nanogram per milliliter (ng/mL)
Standard Deviation 184
760 nanogram per milliliter (ng/mL)
Standard Deviation 261
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 3: Pre-dose
372 nanogram per milliliter (ng/mL)
Standard Deviation 277
296 nanogram per milliliter (ng/mL)
Standard Deviation 175
560 nanogram per milliliter (ng/mL)
Standard Deviation 256
Plasma Concentration of Perampanel Before and After Switching From Oral Perampanel to 30-minute Intravenous Infusions of Perampanel
Day 3: 0.5 hour post-dose
557 nanogram per milliliter (ng/mL)
Standard Deviation 301
547 nanogram per milliliter (ng/mL)
Standard Deviation 169
815 nanogram per milliliter (ng/mL)
Standard Deviation 276

Adverse Events

Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day

Serious events: 0 serious events
Other events: 2 other events
Deaths: 0 deaths

Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day

Serious events: 1 serious events
Other events: 11 other events
Deaths: 0 deaths

Follow-up Phase: Oral Perampanel 8 to 12 mg/Day

Serious events: 2 serious events
Other events: 1 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Nervous system disorders
Hypoaesthesia
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
Psychiatric disorders
Delusion
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
Nervous system disorders
Loss of consciousness
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.

Other adverse events

Other adverse events
Measure
Pretreatment Phase: Oral Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily for 28 days (Day -28 to Day -1) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Pretreatment Phase entered in Treatment Phase.
Treatment Phase: Intravenous Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures were hospitalized and received perampanel 8 mg up to 12 mg (stable-dosage) equivalent to the oral dose, as intravenous infusion for 30 minutes, once daily on Day 1 to Day 4 as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs. Eligible participants who completed Treatment Phase entered Follow-up Phase.
Follow-up Phase: Oral Perampanel 8 to 12 mg/Day
n=21 participants at risk
Participants with POS with or without secondarily generalized seizures or PGTC seizures received perampanel 8 mg up to 12 mg (stable-dosage), tablets, orally, once daily on Day 5 to Day 11 (Follow-up Visit) as an adjunctive therapy along with 1 to a maximum of 3 marketed concomitant AEDs.
Gastrointestinal disorders
Nausea
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
9.5%
2/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
General disorders
Feeling abnormal
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
9.5%
2/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
Nervous system disorders
Dizziness
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
28.6%
6/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
Nervous system disorders
Hypoaesthesia
4.8%
1/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
9.5%
2/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
Nervous system disorders
Somnolence
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
14.3%
3/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.
0.00%
0/21 • Up to 60 days (Pretreatment Phase: up to 28 days, Treatment Phase: up to 4 days, Follow-up Phase: up to 28 days after the last dose)
All participants who received at least 1 dose of study drug.

Additional Information

Eisai Medical Information

Eisai Co., Ltd.

Phone: +1-888-274-2378

Results disclosure agreements

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